TimeTrex Community Edition v16.2.0

vendor/nikic/php-parser/LICENSE

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+BSD 3-Clause License
+
+Copyright (c) 2011, Nikita Popov
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/nikic/php-parser/README.md

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+PHP Parser
+==========
+
+[![Coverage Status](https://coveralls.io/repos/github/nikic/PHP-Parser/badge.svg?branch=master)](https://coveralls.io/github/nikic/PHP-Parser?branch=master)
+
+This is a PHP 5.2 to PHP 8.2 parser written in PHP. Its purpose is to simplify static code analysis and
+manipulation.
+
+[**Documentation for version 4.x**][doc_4_x] (stable; for running on PHP >= 7.0; for parsing PHP 5.2 to PHP 8.2).
+
+[Documentation for version 3.x][doc_3_x] (unsupported; for running on PHP >= 5.5; for parsing PHP 5.2 to PHP 7.2).
+
+Features
+--------
+
+The main features provided by this library are:
+
+ * Parsing PHP 5, PHP 7, and PHP 8 code into an abstract syntax tree (AST).
+   * Invalid code can be parsed into a partial AST.
+   * The AST contains accurate location information.
+ * Dumping the AST in human-readable form.
+ * Converting an AST back to PHP code.
+   * Experimental: Formatting can be preserved for partially changed ASTs.
+ * Infrastructure to traverse and modify ASTs.
+ * Resolution of namespaced names.
+ * Evaluation of constant expressions.
+ * Builders to simplify AST construction for code generation.
+ * Converting an AST into JSON and back.
+
+Quick Start
+-----------
+
+Install the library using [composer](https://getcomposer.org):
+
+    php composer.phar require nikic/php-parser
+
+Parse some PHP code into an AST and dump the result in human-readable form:
+
+```php
+<?php
+use PhpParser\Error;
+use PhpParser\NodeDumper;
+use PhpParser\ParserFactory;
+
+$code = <<<'CODE'
+<?php
+
+function test($foo)
+{
+    var_dump($foo);
+}
+CODE;
+
+$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
+try {
+    $ast = $parser->parse($code);
+} catch (Error $error) {
+    echo "Parse error: {$error->getMessage()}\n";
+    return;
+}
+
+$dumper = new NodeDumper;
+echo $dumper->dump($ast) . "\n";
+```
+
+This dumps an AST looking something like this:
+
+```
+array(
+    0: Stmt_Function(
+        byRef: false
+        name: Identifier(
+            name: test
+        )
+        params: array(
+            0: Param(
+                type: null
+                byRef: false
+                variadic: false
+                var: Expr_Variable(
+                    name: foo
+                )
+                default: null
+            )
+        )
+        returnType: null
+        stmts: array(
+            0: Stmt_Expression(
+                expr: Expr_FuncCall(
+                    name: Name(
+                        parts: array(
+                            0: var_dump
+                        )
+                    )
+                    args: array(
+                        0: Arg(
+                            value: Expr_Variable(
+                                name: foo
+                            )
+                            byRef: false
+                            unpack: false
+                        )
+                    )
+                )
+            )
+        )
+    )
+)
+```
+
+Let's traverse the AST and perform some kind of modification. For example, drop all function bodies:
+
+```php
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Function_;
+use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitorAbstract;
+
+$traverser = new NodeTraverser();
+$traverser->addVisitor(new class extends NodeVisitorAbstract {
+    public function enterNode(Node $node) {
+        if ($node instanceof Function_) {
+            // Clean out the function body
+            $node->stmts = [];
+        }
+    }
+});
+
+$ast = $traverser->traverse($ast);
+echo $dumper->dump($ast) . "\n";
+```
+
+This gives us an AST where the `Function_::$stmts` are empty:
+
+```
+array(
+    0: Stmt_Function(
+        byRef: false
+        name: Identifier(
+            name: test
+        )
+        params: array(
+            0: Param(
+                type: null
+                byRef: false
+                variadic: false
+                var: Expr_Variable(
+                    name: foo
+                )
+                default: null
+            )
+        )
+        returnType: null
+        stmts: array(
+        )
+    )
+)
+```
+
+Finally, we can convert the new AST back to PHP code:
+
+```php
+use PhpParser\PrettyPrinter;
+
+$prettyPrinter = new PrettyPrinter\Standard;
+echo $prettyPrinter->prettyPrintFile($ast);
+```
+
+This gives us our original code, minus the `var_dump()` call inside the function:
+
+```php
+<?php
+
+function test($foo)
+{
+}
+```
+
+For a more comprehensive introduction, see the documentation.
+
+Documentation
+-------------
+
+ 1. [Introduction](doc/0_Introduction.markdown)
+ 2. [Usage of basic components](doc/2_Usage_of_basic_components.markdown)
+
+Component documentation:
+
+ * [Walking the AST](doc/component/Walking_the_AST.markdown)
+   * Node visitors
+   * Modifying the AST from a visitor
+   * Short-circuiting traversals
+   * Interleaved visitors
+   * Simple node finding API
+   * Parent and sibling references
+ * [Name resolution](doc/component/Name_resolution.markdown)
+   * Name resolver options
+   * Name resolution context
+ * [Pretty printing](doc/component/Pretty_printing.markdown)
+   * Converting AST back to PHP code
+   * Customizing formatting
+   * Formatting-preserving code transformations
+ * [AST builders](doc/component/AST_builders.markdown)
+   * Fluent builders for AST nodes
+ * [Lexer](doc/component/Lexer.markdown)
+   * Lexer options
+   * Token and file positions for nodes
+   * Custom attributes
+ * [Error handling](doc/component/Error_handling.markdown)
+   * Column information for errors
+   * Error recovery (parsing of syntactically incorrect code)
+ * [Constant expression evaluation](doc/component/Constant_expression_evaluation.markdown)
+   * Evaluating constant/property/etc initializers
+   * Handling errors and unsupported expressions
+ * [JSON representation](doc/component/JSON_representation.markdown)
+   * JSON encoding and decoding of ASTs
+ * [Performance](doc/component/Performance.markdown)
+   * Disabling Xdebug
+   * Reusing objects
+   * Garbage collection impact
+ * [Frequently asked questions](doc/component/FAQ.markdown)
+   * Parent and sibling references
+
+ [doc_3_x]: https://github.com/nikic/PHP-Parser/tree/3.x/doc
+ [doc_4_x]: https://github.com/nikic/PHP-Parser/tree/4.x/doc

vendor/nikic/php-parser/bin/php-parse

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+#!/usr/bin/env php
+<?php
+
+foreach ([__DIR__ . '/../../../autoload.php', __DIR__ . '/../vendor/autoload.php'] as $file) {
+    if (file_exists($file)) {
+        require $file;
+        break;
+    }
+}
+
+ini_set('xdebug.max_nesting_level', 3000);
+
+// Disable Xdebug var_dump() output truncation
+ini_set('xdebug.var_display_max_children', -1);
+ini_set('xdebug.var_display_max_data', -1);
+ini_set('xdebug.var_display_max_depth', -1);
+
+list($operations, $files, $attributes) = parseArgs($argv);
+
+/* Dump nodes by default */
+if (empty($operations)) {
+    $operations[] = 'dump';
+}
+
+if (empty($files)) {
+    showHelp("Must specify at least one file.");
+}
+
+$lexer = new PhpParser\Lexer\Emulative(['usedAttributes' => [
+    'startLine', 'endLine', 'startFilePos', 'endFilePos', 'comments'
+]]);
+$parser = (new PhpParser\ParserFactory)->create(
+    PhpParser\ParserFactory::PREFER_PHP7,
+    $lexer
+);
+$dumper = new PhpParser\NodeDumper([
+    'dumpComments' => true,
+    'dumpPositions' => $attributes['with-positions'],
+]);
+$prettyPrinter = new PhpParser\PrettyPrinter\Standard;
+
+$traverser = new PhpParser\NodeTraverser();
+$traverser->addVisitor(new PhpParser\NodeVisitor\NameResolver);
+
+foreach ($files as $file) {
+    if (strpos($file, '<?php') === 0) {
+        $code = $file;
+        fwrite(STDERR, "====> Code $code\n");
+    } else {
+        if (!file_exists($file)) {
+            fwrite(STDERR, "File $file does not exist.\n");
+            exit(1);
+        }
+
+        $code = file_get_contents($file);
+        fwrite(STDERR, "====> File $file:\n");
+    }
+
+    if ($attributes['with-recovery']) {
+        $errorHandler = new PhpParser\ErrorHandler\Collecting;
+        $stmts = $parser->parse($code, $errorHandler);
+        foreach ($errorHandler->getErrors() as $error) {
+            $message = formatErrorMessage($error, $code, $attributes['with-column-info']);
+            fwrite(STDERR, $message . "\n");
+        }
+        if (null === $stmts) {
+            continue;
+        }
+    } else {
+        try {
+            $stmts = $parser->parse($code);
+        } catch (PhpParser\Error $error) {
+            $message = formatErrorMessage($error, $code, $attributes['with-column-info']);
+            fwrite(STDERR, $message . "\n");
+            exit(1);
+        }
+    }
+
+    foreach ($operations as $operation) {
+        if ('dump' === $operation) {
+            fwrite(STDERR, "==> Node dump:\n");
+            echo $dumper->dump($stmts, $code), "\n";
+        } elseif ('pretty-print' === $operation) {
+            fwrite(STDERR, "==> Pretty print:\n");
+            echo $prettyPrinter->prettyPrintFile($stmts), "\n";
+        } elseif ('json-dump' === $operation) {
+            fwrite(STDERR, "==> JSON dump:\n");
+            echo json_encode($stmts, JSON_PRETTY_PRINT), "\n";
+        } elseif ('var-dump' === $operation) {
+            fwrite(STDERR, "==> var_dump():\n");
+            var_dump($stmts);
+        } elseif ('resolve-names' === $operation) {
+            fwrite(STDERR, "==> Resolved names.\n");
+            $stmts = $traverser->traverse($stmts);
+        }
+    }
+}
+
+function formatErrorMessage(PhpParser\Error $e, $code, $withColumnInfo) {
+    if ($withColumnInfo && $e->hasColumnInfo()) {
+        return $e->getMessageWithColumnInfo($code);
+    } else {
+        return $e->getMessage();
+    }
+}
+
+function showHelp($error = '') {
+    if ($error) {
+        fwrite(STDERR, $error . "\n\n");
+    }
+    fwrite($error ? STDERR : STDOUT, <<<OUTPUT
+Usage: php-parse [operations] file1.php [file2.php ...]
+   or: php-parse [operations] "<?php code"
+Turn PHP source code into an abstract syntax tree.
+
+Operations is a list of the following options (--dump by default):
+
+    -d, --dump              Dump nodes using NodeDumper
+    -p, --pretty-print      Pretty print file using PrettyPrinter\Standard
+    -j, --json-dump         Print json_encode() result
+        --var-dump          var_dump() nodes (for exact structure)
+    -N, --resolve-names     Resolve names using NodeVisitor\NameResolver
+    -c, --with-column-info  Show column-numbers for errors (if available)
+    -P, --with-positions    Show positions in node dumps
+    -r, --with-recovery     Use parsing with error recovery
+    -h, --help              Display this page
+
+Example:
+    php-parse -d -p -N -d file.php
+
+    Dumps nodes, pretty prints them, then resolves names and dumps them again.
+
+
+OUTPUT
+    );
+    exit($error ? 1 : 0);
+}
+
+function parseArgs($args) {
+    $operations = [];
+    $files = [];
+    $attributes = [
+        'with-column-info' => false,
+        'with-positions' => false,
+        'with-recovery' => false,
+    ];
+
+    array_shift($args);
+    $parseOptions = true;
+    foreach ($args as $arg) {
+        if (!$parseOptions) {
+            $files[] = $arg;
+            continue;
+        }
+
+        switch ($arg) {
+            case '--dump':
+            case '-d':
+                $operations[] = 'dump';
+                break;
+            case '--pretty-print':
+            case '-p':
+                $operations[] = 'pretty-print';
+                break;
+            case '--json-dump':
+            case '-j':
+                $operations[] = 'json-dump';
+                break;
+            case '--var-dump':
+                $operations[] = 'var-dump';
+                break;
+            case '--resolve-names':
+            case '-N';
+                $operations[] = 'resolve-names';
+                break;
+            case '--with-column-info':
+            case '-c';
+                $attributes['with-column-info'] = true;
+                break;
+            case '--with-positions':
+            case '-P':
+                $attributes['with-positions'] = true;
+                break;
+            case '--with-recovery':
+            case '-r':
+                $attributes['with-recovery'] = true;
+                break;
+            case '--help':
+            case '-h';
+                showHelp();
+                break;
+            case '--':
+                $parseOptions = false;
+                break;
+            default:
+                if ($arg[0] === '-') {
+                    showHelp("Invalid operation $arg.");
+                } else {
+                    $files[] = $arg;
+                }
+        }
+    }
+
+    return [$operations, $files, $attributes];
+}

vendor/nikic/php-parser/composer.json

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+{
+    "name": "nikic/php-parser",
+    "type": "library",
+    "description": "A PHP parser written in PHP",
+    "keywords": [
+        "php",
+        "parser"
+    ],
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Nikita Popov"
+        }
+    ],
+    "require": {
+        "php": ">=7.0",
+        "ext-tokenizer": "*"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^6.5 || ^7.0 || ^8.0 || ^9.0",
+        "ircmaxell/php-yacc": "^0.0.7"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "4.9-dev"
+        }
+    },
+    "autoload": {
+        "psr-4": {
+            "PhpParser\\": "lib/PhpParser"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "PhpParser\\": "test/PhpParser/"
+        }
+    },
+    "bin": [
+        "bin/php-parse"
+    ]
+}

vendor/nikic/php-parser/grammar/README.md

@@ -0,0 +1,30 @@
+What do all those files mean?
+=============================
+
+ * `php5.y`:             PHP 5 grammar written in a pseudo language
+ * `php7.y`:             PHP 7 grammar written in a pseudo language
+ * `tokens.y`:           Tokens definition shared between PHP 5 and PHP 7 grammars
+ * `parser.template`:    A `kmyacc` parser prototype file for PHP
+ * `tokens.template`:    A `kmyacc` prototype file for the `Tokens` class
+ * `rebuildParsers.php`: Preprocesses the grammar and builds the parser using `kmyacc`
+
+.phpy pseudo language
+=====================
+
+The `.y` file is a normal grammar in `kmyacc` (`yacc`) style, with some transformations
+applied to it:
+
+ * Nodes are created using the syntax `Name[..., ...]`. This is transformed into
+   `new Name(..., ..., attributes())`
+ * Some function-like constructs are resolved (see `rebuildParsers.php` for a list)
+
+Building the parser
+===================
+
+Run `php grammar/rebuildParsers.php` to rebuild the parsers. Additional options:
+
+ * The `KMYACC` environment variable can be used to specify an alternative `kmyacc` binary.
+   By default the `phpyacc` dev dependency will be used. To use the original `kmyacc`, you
+   need to compile [moriyoshi's fork](https://github.com/moriyoshi/kmyacc-forked).
+ * The `--debug` option enables emission of debug symbols and creates the `y.output` file.
+ * The `--keep-tmp-grammar` option preserves the preprocessed grammar file.

vendor/nikic/php-parser/grammar/parser.template

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+<?php
+$meta #
+#semval($) $this->semValue
+#semval($,%t) $this->semValue
+#semval(%n) $stackPos-(%l-%n)
+#semval(%n,%t) $stackPos-(%l-%n)
+
+namespace PhpParser\Parser;
+
+use PhpParser\Error;
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Name;
+use PhpParser\Node\Scalar;
+use PhpParser\Node\Stmt;
+#include;
+
+/* This is an automatically GENERATED file, which should not be manually edited.
+ * Instead edit one of the following:
+ *  * the grammar files grammar/php5.y or grammar/php7.y
+ *  * the skeleton file grammar/parser.template
+ *  * the preprocessing script grammar/rebuildParsers.php
+ */
+class #(-p) extends \PhpParser\ParserAbstract
+{
+    protected $tokenToSymbolMapSize = #(YYMAXLEX);
+    protected $actionTableSize = #(YYLAST);
+    protected $gotoTableSize = #(YYGLAST);
+
+    protected $invalidSymbol = #(YYBADCH);
+    protected $errorSymbol = #(YYINTERRTOK);
+    protected $defaultAction = #(YYDEFAULT);
+    protected $unexpectedTokenRule = #(YYUNEXPECTED);
+
+    protected $YY2TBLSTATE = #(YY2TBLSTATE);
+    protected $numNonLeafStates = #(YYNLSTATES);
+
+    protected $symbolToName = array(
+        #listvar terminals
+    );
+
+    protected $tokenToSymbol = array(
+        #listvar yytranslate
+    );
+
+    protected $action = array(
+        #listvar yyaction
+    );
+
+    protected $actionCheck = array(
+        #listvar yycheck
+    );
+
+    protected $actionBase = array(
+        #listvar yybase
+    );
+
+    protected $actionDefault = array(
+        #listvar yydefault
+    );
+
+    protected $goto = array(
+        #listvar yygoto
+    );
+
+    protected $gotoCheck = array(
+        #listvar yygcheck
+    );
+
+    protected $gotoBase = array(
+        #listvar yygbase
+    );
+
+    protected $gotoDefault = array(
+        #listvar yygdefault
+    );
+
+    protected $ruleToNonTerminal = array(
+        #listvar yylhs
+    );
+
+    protected $ruleToLength = array(
+        #listvar yylen
+    );
+#if -t
+
+    protected $productions = array(
+        #production-strings;
+    );
+#endif
+
+    protected function initReduceCallbacks() {
+        $this->reduceCallbacks = [
+#reduce
+            %n => function ($stackPos) {
+                %b
+            },
+#noact
+            %n => function ($stackPos) {
+                $this->semValue = $this->semStack[$stackPos];
+            },
+#endreduce
+        ];
+    }
+}
+#tailcode;

vendor/nikic/php-parser/grammar/phpyLang.php

@@ -0,0 +1,184 @@
+<?php
+
+///////////////////////////////
+/// Utility regex constants ///
+///////////////////////////////
+
+const LIB = '(?(DEFINE)
+    (?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\')
+    (?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+")
+    (?<string>(?&singleQuotedString)|(?&doubleQuotedString))
+    (?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/)
+    (?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+})
+)';
+
+const PARAMS = '\[(?<params>[^[\]]*+(?:\[(?&params)\][^[\]]*+)*+)\]';
+const ARGS   = '\((?<args>[^()]*+(?:\((?&args)\)[^()]*+)*+)\)';
+
+///////////////////////////////
+/// Preprocessing functions ///
+///////////////////////////////
+
+function preprocessGrammar($code) {
+    $code = resolveNodes($code);
+    $code = resolveMacros($code);
+    $code = resolveStackAccess($code);
+
+    return $code;
+}
+
+function resolveNodes($code) {
+    return preg_replace_callback(
+        '~\b(?<name>[A-Z][a-zA-Z_\\\\]++)\s*' . PARAMS . '~',
+        function($matches) {
+            // recurse
+            $matches['params'] = resolveNodes($matches['params']);
+
+            $params = magicSplit(
+                '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,',
+                $matches['params']
+            );
+
+            $paramCode = '';
+            foreach ($params as $param) {
+                $paramCode .= $param . ', ';
+            }
+
+            return 'new ' . $matches['name'] . '(' . $paramCode . 'attributes())';
+        },
+        $code
+    );
+}
+
+function resolveMacros($code) {
+    return preg_replace_callback(
+        '~\b(?<!::|->)(?!array\()(?<name>[a-z][A-Za-z]++)' . ARGS . '~',
+        function($matches) {
+            // recurse
+            $matches['args'] = resolveMacros($matches['args']);
+
+            $name = $matches['name'];
+            $args = magicSplit(
+                '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,',
+                $matches['args']
+            );
+
+            if ('attributes' === $name) {
+                assertArgs(0, $args, $name);
+                return '$this->startAttributeStack[#1] + $this->endAttributes';
+            }
+
+            if ('stackAttributes' === $name) {
+                assertArgs(1, $args, $name);
+                return '$this->startAttributeStack[' . $args[0] . ']'
+                       . ' + $this->endAttributeStack[' . $args[0] . ']';
+            }
+
+            if ('init' === $name) {
+                return '$$ = array(' . implode(', ', $args) . ')';
+            }
+
+            if ('push' === $name) {
+                assertArgs(2, $args, $name);
+
+                return $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0];
+            }
+
+            if ('pushNormalizing' === $name) {
+                assertArgs(2, $args, $name);
+
+                return 'if (is_array(' . $args[1] . ')) { $$ = array_merge(' . $args[0] . ', ' . $args[1] . '); }'
+                       . ' else { ' . $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0] . '; }';
+            }
+
+            if ('toArray' == $name) {
+                assertArgs(1, $args, $name);
+
+                return 'is_array(' . $args[0] . ') ? ' . $args[0] . ' : array(' . $args[0] . ')';
+            }
+
+            if ('parseVar' === $name) {
+                assertArgs(1, $args, $name);
+
+                return 'substr(' . $args[0] . ', 1)';
+            }
+
+            if ('parseEncapsed' === $name) {
+                assertArgs(3, $args, $name);
+
+                return 'foreach (' . $args[0] . ' as $s) { if ($s instanceof Node\Scalar\EncapsedStringPart) {'
+                       . ' $s->value = Node\Scalar\String_::parseEscapeSequences($s->value, ' . $args[1] . ', ' . $args[2] . '); } }';
+            }
+
+            if ('makeNop' === $name) {
+                assertArgs(3, $args, $name);
+
+                return '$startAttributes = ' . $args[1] . ';'
+                       . ' if (isset($startAttributes[\'comments\']))'
+                       . ' { ' . $args[0] . ' = new Stmt\Nop($startAttributes + ' . $args[2] . '); }'
+                       . ' else { ' . $args[0] . ' = null; }';
+            }
+
+            if ('makeZeroLengthNop' == $name) {
+                assertArgs(2, $args, $name);
+
+                return '$startAttributes = ' . $args[1] . ';'
+                       . ' if (isset($startAttributes[\'comments\']))'
+                       . ' { ' . $args[0] . ' = new Stmt\Nop($this->createCommentNopAttributes($startAttributes[\'comments\'])); }'
+                       . ' else { ' . $args[0] . ' = null; }';
+            }
+
+            if ('prependLeadingComments' === $name) {
+                assertArgs(1, $args, $name);
+
+                return '$attrs = $this->startAttributeStack[#1]; $stmts = ' . $args[0] . '; '
+                       . 'if (!empty($attrs[\'comments\'])) {'
+                       . '$stmts[0]->setAttribute(\'comments\', '
+                       . 'array_merge($attrs[\'comments\'], $stmts[0]->getAttribute(\'comments\', []))); }';
+            }
+
+            return $matches[0];
+        },
+        $code
+    );
+}
+
+function assertArgs($num, $args, $name) {
+    if ($num != count($args)) {
+        die('Wrong argument count for ' . $name . '().');
+    }
+}
+
+function resolveStackAccess($code) {
+    $code = preg_replace('/\$\d+/', '$this->semStack[$0]', $code);
+    $code = preg_replace('/#(\d+)/', '$$1', $code);
+    return $code;
+}
+
+function removeTrailingWhitespace($code) {
+    $lines = explode("\n", $code);
+    $lines = array_map('rtrim', $lines);
+    return implode("\n", $lines);
+}
+
+//////////////////////////////
+/// Regex helper functions ///
+//////////////////////////////
+
+function regex($regex) {
+    return '~' . LIB . '(?:' . str_replace('~', '\~', $regex) . ')~';
+}
+
+function magicSplit($regex, $string) {
+    $pieces = preg_split(regex('(?:(?&string)|(?&comment)|(?&code))(*SKIP)(*FAIL)|' . $regex), $string);
+
+    foreach ($pieces as &$piece) {
+        $piece = trim($piece);
+    }
+
+    if ($pieces === ['']) {
+        return [];
+    }
+
+    return $pieces;
+}

vendor/nikic/php-parser/grammar/rebuildParsers.php

@@ -0,0 +1,81 @@
+<?php
+
+require __DIR__ . '/phpyLang.php';
+
+$grammarFileToName = [
+    __DIR__ . '/php5.y' => 'Php5',
+    __DIR__ . '/php7.y' => 'Php7',
+];
+
+$tokensFile     = __DIR__ . '/tokens.y';
+$tokensTemplate = __DIR__ . '/tokens.template';
+$skeletonFile   = __DIR__ . '/parser.template';
+$tmpGrammarFile = __DIR__ . '/tmp_parser.phpy';
+$tmpResultFile  = __DIR__ . '/tmp_parser.php';
+$resultDir = __DIR__ . '/../lib/PhpParser/Parser';
+$tokensResultsFile = $resultDir . '/Tokens.php';
+
+$kmyacc = getenv('KMYACC');
+if (!$kmyacc) {
+    // Use phpyacc from dev dependencies by default.
+    $kmyacc = __DIR__ . '/../vendor/bin/phpyacc';
+}
+
+$options = array_flip($argv);
+$optionDebug = isset($options['--debug']);
+$optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']);
+
+///////////////////
+/// Main script ///
+///////////////////
+
+$tokens = file_get_contents($tokensFile);
+
+foreach ($grammarFileToName as $grammarFile => $name) {
+    echo "Building temporary $name grammar file.\n";
+
+    $grammarCode = file_get_contents($grammarFile);
+    $grammarCode = str_replace('%tokens', $tokens, $grammarCode);
+    $grammarCode = preprocessGrammar($grammarCode);
+
+    file_put_contents($tmpGrammarFile, $grammarCode);
+
+    $additionalArgs = $optionDebug ? '-t -v' : '';
+
+    echo "Building $name parser.\n";
+    $output = execCmd("$kmyacc $additionalArgs -m $skeletonFile -p $name $tmpGrammarFile");
+
+    $resultCode = file_get_contents($tmpResultFile);
+    $resultCode = removeTrailingWhitespace($resultCode);
+
+    ensureDirExists($resultDir);
+    file_put_contents("$resultDir/$name.php", $resultCode);
+    unlink($tmpResultFile);
+
+    echo "Building token definition.\n";
+    $output = execCmd("$kmyacc -m $tokensTemplate $tmpGrammarFile");
+    rename($tmpResultFile, $tokensResultsFile);
+
+    if (!$optionKeepTmpGrammar) {
+        unlink($tmpGrammarFile);
+    }
+}
+
+////////////////////////////////
+/// Utility helper functions ///
+////////////////////////////////
+
+function ensureDirExists($dir) {
+    if (!is_dir($dir)) {
+        mkdir($dir, 0777, true);
+    }
+}
+
+function execCmd($cmd) {
+    $output = trim(shell_exec("$cmd 2>&1"));
+    if ($output !== "") {
+        echo "> " . $cmd . "\n";
+        echo $output;
+    }
+    return $output;
+}

vendor/nikic/php-parser/grammar/tokens.template

@@ -0,0 +1,17 @@
+<?php
+$meta #
+#semval($) $this->semValue
+#semval($,%t) $this->semValue
+#semval(%n) $this->stackPos-(%l-%n)
+#semval(%n,%t) $this->stackPos-(%l-%n)
+
+namespace PhpParser\Parser;
+#include;
+
+/* GENERATED file based on grammar/tokens.y */
+final class Tokens
+{
+#tokenval
+    const %s = %n;
+#endtokenval
+}

vendor/nikic/php-parser/grammar/tokens.y

@@ -0,0 +1,115 @@
+/* We currently rely on the token ID mapping to be the same between PHP 5 and PHP 7 - so the same lexer can be used for
+ * both. This is enforced by sharing this token file. */
+
+%right T_THROW
+%left T_INCLUDE T_INCLUDE_ONCE T_EVAL T_REQUIRE T_REQUIRE_ONCE
+%left ','
+%left T_LOGICAL_OR
+%left T_LOGICAL_XOR
+%left T_LOGICAL_AND
+%right T_PRINT
+%right T_YIELD
+%right T_DOUBLE_ARROW
+%right T_YIELD_FROM
+%left '=' T_PLUS_EQUAL T_MINUS_EQUAL T_MUL_EQUAL T_DIV_EQUAL T_CONCAT_EQUAL T_MOD_EQUAL T_AND_EQUAL T_OR_EQUAL T_XOR_EQUAL T_SL_EQUAL T_SR_EQUAL T_POW_EQUAL T_COALESCE_EQUAL
+%left '?' ':'
+%right T_COALESCE
+%left T_BOOLEAN_OR
+%left T_BOOLEAN_AND
+%left '|'
+%left '^'
+%left T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG
+%nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL T_SPACESHIP
+%nonassoc '<' T_IS_SMALLER_OR_EQUAL '>' T_IS_GREATER_OR_EQUAL
+%left T_SL T_SR
+%left '+' '-' '.'
+%left '*' '/' '%'
+%right '!'
+%nonassoc T_INSTANCEOF
+%right '~' T_INC T_DEC T_INT_CAST T_DOUBLE_CAST T_STRING_CAST T_ARRAY_CAST T_OBJECT_CAST T_BOOL_CAST T_UNSET_CAST '@'
+%right T_POW
+%right '['
+%nonassoc T_NEW T_CLONE
+%token T_EXIT
+%token T_IF
+%left T_ELSEIF
+%left T_ELSE
+%left T_ENDIF
+%token T_LNUMBER
+%token T_DNUMBER
+%token T_STRING
+%token T_STRING_VARNAME
+%token T_VARIABLE
+%token T_NUM_STRING
+%token T_INLINE_HTML
+%token T_ENCAPSED_AND_WHITESPACE
+%token T_CONSTANT_ENCAPSED_STRING
+%token T_ECHO
+%token T_DO
+%token T_WHILE
+%token T_ENDWHILE
+%token T_FOR
+%token T_ENDFOR
+%token T_FOREACH
+%token T_ENDFOREACH
+%token T_DECLARE
+%token T_ENDDECLARE
+%token T_AS
+%token T_SWITCH
+%token T_MATCH
+%token T_ENDSWITCH
+%token T_CASE
+%token T_DEFAULT
+%token T_BREAK
+%token T_CONTINUE
+%token T_GOTO
+%token T_FUNCTION
+%token T_FN
+%token T_CONST
+%token T_RETURN
+%token T_TRY
+%token T_CATCH
+%token T_FINALLY
+%token T_THROW
+%token T_USE
+%token T_INSTEADOF
+%token T_GLOBAL
+%right T_STATIC T_ABSTRACT T_FINAL T_PRIVATE T_PROTECTED T_PUBLIC T_READONLY
+%token T_VAR
+%token T_UNSET
+%token T_ISSET
+%token T_EMPTY
+%token T_HALT_COMPILER
+%token T_CLASS
+%token T_TRAIT
+%token T_INTERFACE
+%token T_ENUM
+%token T_EXTENDS
+%token T_IMPLEMENTS
+%token T_OBJECT_OPERATOR
+%token T_NULLSAFE_OBJECT_OPERATOR
+%token T_DOUBLE_ARROW
+%token T_LIST
+%token T_ARRAY
+%token T_CALLABLE
+%token T_CLASS_C
+%token T_TRAIT_C
+%token T_METHOD_C
+%token T_FUNC_C
+%token T_LINE
+%token T_FILE
+%token T_START_HEREDOC
+%token T_END_HEREDOC
+%token T_DOLLAR_OPEN_CURLY_BRACES
+%token T_CURLY_OPEN
+%token T_PAAMAYIM_NEKUDOTAYIM
+%token T_NAMESPACE
+%token T_NS_C
+%token T_DIR
+%token T_NS_SEPARATOR
+%token T_ELLIPSIS
+%token T_NAME_FULLY_QUALIFIED
+%token T_NAME_QUALIFIED
+%token T_NAME_RELATIVE
+%token T_ATTRIBUTE
+%token T_ENUM

vendor/nikic/php-parser/lib/PhpParser/Builder.php

@@ -0,0 +1,13 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+interface Builder
+{
+    /**
+     * Returns the built node.
+     *
+     * @return Node The built node
+     */
+    public function getNode() : Node;
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/ClassConst.php

@@ -0,0 +1,132 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Const_;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Stmt;
+
+class ClassConst implements PhpParser\Builder
+{
+    protected $flags = 0;
+    protected $attributes = [];
+    protected $constants = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a class constant builder
+     *
+     * @param string|Identifier                          $name  Name
+     * @param Node\Expr|bool|null|int|float|string|array $value Value
+     */
+    public function __construct($name, $value) {
+        $this->constants = [new Const_($name, BuilderHelpers::normalizeValue($value))];
+    }
+
+    /**
+     * Add another constant to const group
+     *
+     * @param string|Identifier                          $name  Name
+     * @param Node\Expr|bool|null|int|float|string|array $value Value
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addConst($name, $value) {
+        $this->constants[] = new Const_($name, BuilderHelpers::normalizeValue($value));
+
+        return $this;
+    }
+
+    /**
+     * Makes the constant public.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePublic() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PUBLIC);
+
+        return $this;
+    }
+
+    /**
+     * Makes the constant protected.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeProtected() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PROTECTED);
+
+        return $this;
+    }
+
+    /**
+     * Makes the constant private.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePrivate() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PRIVATE);
+
+        return $this;
+    }
+
+    /**
+     * Makes the constant final.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeFinal() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_FINAL);
+
+        return $this;
+    }
+
+    /**
+     * Sets doc comment for the constant.
+     *
+     * @param PhpParser\Comment\Doc|string $docComment Doc comment to set
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDocComment($docComment) {
+        $this->attributes = [
+            'comments' => [BuilderHelpers::normalizeDocComment($docComment)]
+        ];
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built class node.
+     *
+     * @return Stmt\ClassConst The built constant node
+     */
+    public function getNode(): PhpParser\Node {
+        return new Stmt\ClassConst(
+            $this->constants,
+            $this->flags,
+            $this->attributes,
+            $this->attributeGroups
+        );
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Class_.php

@@ -0,0 +1,146 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class Class_ extends Declaration
+{
+    protected $name;
+
+    protected $extends = null;
+    protected $implements = [];
+    protected $flags = 0;
+
+    protected $uses = [];
+    protected $constants = [];
+    protected $properties = [];
+    protected $methods = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a class builder.
+     *
+     * @param string $name Name of the class
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Extends a class.
+     *
+     * @param Name|string $class Name of class to extend
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function extend($class) {
+        $this->extends = BuilderHelpers::normalizeName($class);
+
+        return $this;
+    }
+
+    /**
+     * Implements one or more interfaces.
+     *
+     * @param Name|string ...$interfaces Names of interfaces to implement
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function implement(...$interfaces) {
+        foreach ($interfaces as $interface) {
+            $this->implements[] = BuilderHelpers::normalizeName($interface);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Makes the class abstract.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeAbstract() {
+        $this->flags = BuilderHelpers::addClassModifier($this->flags, Stmt\Class_::MODIFIER_ABSTRACT);
+
+        return $this;
+    }
+
+    /**
+     * Makes the class final.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeFinal() {
+        $this->flags = BuilderHelpers::addClassModifier($this->flags, Stmt\Class_::MODIFIER_FINAL);
+
+        return $this;
+    }
+
+    public function makeReadonly() {
+        $this->flags = BuilderHelpers::addClassModifier($this->flags, Stmt\Class_::MODIFIER_READONLY);
+
+        return $this;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Stmt|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $stmt = BuilderHelpers::normalizeNode($stmt);
+
+        $targets = [
+            Stmt\TraitUse::class    => &$this->uses,
+            Stmt\ClassConst::class  => &$this->constants,
+            Stmt\Property::class    => &$this->properties,
+            Stmt\ClassMethod::class => &$this->methods,
+        ];
+
+        $class = \get_class($stmt);
+        if (!isset($targets[$class])) {
+            throw new \LogicException(sprintf('Unexpected node of type "%s"', $stmt->getType()));
+        }
+
+        $targets[$class][] = $stmt;
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built class node.
+     *
+     * @return Stmt\Class_ The built class node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Class_($this->name, [
+            'flags' => $this->flags,
+            'extends' => $this->extends,
+            'implements' => $this->implements,
+            'stmts' => array_merge($this->uses, $this->constants, $this->properties, $this->methods),
+            'attrGroups' => $this->attributeGroups,
+        ], $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Declaration.php

@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+
+abstract class Declaration implements PhpParser\Builder
+{
+    protected $attributes = [];
+
+    abstract public function addStmt($stmt);
+
+    /**
+     * Adds multiple statements.
+     *
+     * @param array $stmts The statements to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmts(array $stmts) {
+        foreach ($stmts as $stmt) {
+            $this->addStmt($stmt);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Sets doc comment for the declaration.
+     *
+     * @param PhpParser\Comment\Doc|string $docComment Doc comment to set
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDocComment($docComment) {
+        $this->attributes['comments'] = [
+            BuilderHelpers::normalizeDocComment($docComment)
+        ];
+
+        return $this;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/EnumCase.php

@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Stmt;
+
+class EnumCase implements PhpParser\Builder
+{
+    protected $name;
+    protected $value = null;
+    protected $attributes = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates an enum case builder.
+     *
+     * @param string|Identifier $name  Name
+     */
+    public function __construct($name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Sets the value.
+     *
+     * @param Node\Expr|string|int $value
+     *
+     * @return $this
+     */
+    public function setValue($value) {
+        $this->value = BuilderHelpers::normalizeValue($value);
+
+        return $this;
+    }
+
+    /**
+     * Sets doc comment for the constant.
+     *
+     * @param PhpParser\Comment\Doc|string $docComment Doc comment to set
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDocComment($docComment) {
+        $this->attributes = [
+            'comments' => [BuilderHelpers::normalizeDocComment($docComment)]
+        ];
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built enum case node.
+     *
+     * @return Stmt\EnumCase The built constant node
+     */
+    public function getNode(): PhpParser\Node {
+        return new Stmt\EnumCase(
+            $this->name,
+            $this->value,
+            $this->attributes,
+            $this->attributeGroups
+        );
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Enum_.php

@@ -0,0 +1,117 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class Enum_ extends Declaration
+{
+    protected $name;
+    protected $scalarType = null;
+
+    protected $implements = [];
+
+    protected $uses = [];
+    protected $enumCases = [];
+    protected $constants = [];
+    protected $methods = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates an enum builder.
+     *
+     * @param string $name Name of the enum
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Sets the scalar type.
+     *
+     * @param string|Identifier $type
+     *
+     * @return $this
+     */
+    public function setScalarType($scalarType) {
+        $this->scalarType = BuilderHelpers::normalizeType($scalarType);
+
+        return $this;
+    }
+
+    /**
+     * Implements one or more interfaces.
+     *
+     * @param Name|string ...$interfaces Names of interfaces to implement
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function implement(...$interfaces) {
+        foreach ($interfaces as $interface) {
+            $this->implements[] = BuilderHelpers::normalizeName($interface);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Stmt|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $stmt = BuilderHelpers::normalizeNode($stmt);
+
+        $targets = [
+            Stmt\TraitUse::class    => &$this->uses,
+            Stmt\EnumCase::class    => &$this->enumCases,
+            Stmt\ClassConst::class  => &$this->constants,
+            Stmt\ClassMethod::class => &$this->methods,
+        ];
+
+        $class = \get_class($stmt);
+        if (!isset($targets[$class])) {
+            throw new \LogicException(sprintf('Unexpected node of type "%s"', $stmt->getType()));
+        }
+
+        $targets[$class][] = $stmt;
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built class node.
+     *
+     * @return Stmt\Enum_ The built enum node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Enum_($this->name, [
+            'scalarType' => $this->scalarType,
+            'implements' => $this->implements,
+            'stmts' => array_merge($this->uses, $this->enumCases, $this->constants, $this->methods),
+            'attrGroups' => $this->attributeGroups,
+        ], $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/FunctionLike.php

@@ -0,0 +1,73 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+
+abstract class FunctionLike extends Declaration
+{
+    protected $returnByRef = false;
+    protected $params = [];
+
+    /** @var string|Node\Name|Node\NullableType|null */
+    protected $returnType = null;
+
+    /**
+     * Make the function return by reference.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeReturnByRef() {
+        $this->returnByRef = true;
+
+        return $this;
+    }
+
+    /**
+     * Adds a parameter.
+     *
+     * @param Node\Param|Param $param The parameter to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addParam($param) {
+        $param = BuilderHelpers::normalizeNode($param);
+
+        if (!$param instanceof Node\Param) {
+            throw new \LogicException(sprintf('Expected parameter node, got "%s"', $param->getType()));
+        }
+
+        $this->params[] = $param;
+
+        return $this;
+    }
+
+    /**
+     * Adds multiple parameters.
+     *
+     * @param array $params The parameters to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addParams(array $params) {
+        foreach ($params as $param) {
+            $this->addParam($param);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Sets the return type for PHP 7.
+     *
+     * @param string|Node\Name|Node\Identifier|Node\ComplexType $type
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setReturnType($type) {
+        $this->returnType = BuilderHelpers::normalizeType($type);
+
+        return $this;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Function_.php

@@ -0,0 +1,67 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Function_ extends FunctionLike
+{
+    protected $name;
+    protected $stmts = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a function builder.
+     *
+     * @param string $name Name of the function
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Node|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $this->stmts[] = BuilderHelpers::normalizeStmt($stmt);
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built function node.
+     *
+     * @return Stmt\Function_ The built function node
+     */
+    public function getNode() : Node {
+        return new Stmt\Function_($this->name, [
+            'byRef'      => $this->returnByRef,
+            'params'     => $this->params,
+            'returnType' => $this->returnType,
+            'stmts'      => $this->stmts,
+            'attrGroups' => $this->attributeGroups,
+        ], $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Interface_.php

@@ -0,0 +1,93 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class Interface_ extends Declaration
+{
+    protected $name;
+    protected $extends = [];
+    protected $constants = [];
+    protected $methods = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates an interface builder.
+     *
+     * @param string $name Name of the interface
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Extends one or more interfaces.
+     *
+     * @param Name|string ...$interfaces Names of interfaces to extend
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function extend(...$interfaces) {
+        foreach ($interfaces as $interface) {
+            $this->extends[] = BuilderHelpers::normalizeName($interface);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Stmt|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $stmt = BuilderHelpers::normalizeNode($stmt);
+
+        if ($stmt instanceof Stmt\ClassConst) {
+            $this->constants[] = $stmt;
+        } elseif ($stmt instanceof Stmt\ClassMethod) {
+            // we erase all statements in the body of an interface method
+            $stmt->stmts = null;
+            $this->methods[] = $stmt;
+        } else {
+            throw new \LogicException(sprintf('Unexpected node of type "%s"', $stmt->getType()));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built interface node.
+     *
+     * @return Stmt\Interface_ The built interface node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Interface_($this->name, [
+            'extends' => $this->extends,
+            'stmts' => array_merge($this->constants, $this->methods),
+            'attrGroups' => $this->attributeGroups,
+        ], $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Method.php

@@ -0,0 +1,146 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Method extends FunctionLike
+{
+    protected $name;
+    protected $flags = 0;
+
+    /** @var array|null */
+    protected $stmts = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a method builder.
+     *
+     * @param string $name Name of the method
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Makes the method public.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePublic() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PUBLIC);
+
+        return $this;
+    }
+
+    /**
+     * Makes the method protected.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeProtected() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PROTECTED);
+
+        return $this;
+    }
+
+    /**
+     * Makes the method private.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePrivate() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PRIVATE);
+
+        return $this;
+    }
+
+    /**
+     * Makes the method static.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeStatic() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_STATIC);
+
+        return $this;
+    }
+
+    /**
+     * Makes the method abstract.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeAbstract() {
+        if (!empty($this->stmts)) {
+            throw new \LogicException('Cannot make method with statements abstract');
+        }
+
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_ABSTRACT);
+        $this->stmts = null; // abstract methods don't have statements
+
+        return $this;
+    }
+
+    /**
+     * Makes the method final.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeFinal() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_FINAL);
+
+        return $this;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Node|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        if (null === $this->stmts) {
+            throw new \LogicException('Cannot add statements to an abstract method');
+        }
+
+        $this->stmts[] = BuilderHelpers::normalizeStmt($stmt);
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built method node.
+     *
+     * @return Stmt\ClassMethod The built method node
+     */
+    public function getNode() : Node {
+        return new Stmt\ClassMethod($this->name, [
+            'flags'      => $this->flags,
+            'byRef'      => $this->returnByRef,
+            'params'     => $this->params,
+            'returnType' => $this->returnType,
+            'stmts'      => $this->stmts,
+            'attrGroups' => $this->attributeGroups,
+        ], $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Namespace_.php

@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Namespace_ extends Declaration
+{
+    private $name;
+    private $stmts = [];
+
+    /**
+     * Creates a namespace builder.
+     *
+     * @param Node\Name|string|null $name Name of the namespace
+     */
+    public function __construct($name) {
+        $this->name = null !== $name ? BuilderHelpers::normalizeName($name) : null;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Node|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $this->stmts[] = BuilderHelpers::normalizeStmt($stmt);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built node.
+     *
+     * @return Stmt\Namespace_ The built node
+     */
+    public function getNode() : Node {
+        return new Stmt\Namespace_($this->name, $this->stmts, $this->attributes);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Param.php

@@ -0,0 +1,122 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+
+class Param implements PhpParser\Builder
+{
+    protected $name;
+
+    protected $default = null;
+
+    /** @var Node\Identifier|Node\Name|Node\NullableType|null */
+    protected $type = null;
+
+    protected $byRef = false;
+
+    protected $variadic = false;
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a parameter builder.
+     *
+     * @param string $name Name of the parameter
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Sets default value for the parameter.
+     *
+     * @param mixed $value Default value to use
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDefault($value) {
+        $this->default = BuilderHelpers::normalizeValue($value);
+
+        return $this;
+    }
+
+    /**
+     * Sets type for the parameter.
+     *
+     * @param string|Node\Name|Node\Identifier|Node\ComplexType $type Parameter type
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setType($type) {
+        $this->type = BuilderHelpers::normalizeType($type);
+        if ($this->type == 'void') {
+            throw new \LogicException('Parameter type cannot be void');
+        }
+
+        return $this;
+    }
+
+    /**
+     * Sets type for the parameter.
+     *
+     * @param string|Node\Name|Node\Identifier|Node\ComplexType $type Parameter type
+     *
+     * @return $this The builder instance (for fluid interface)
+     *
+     * @deprecated Use setType() instead
+     */
+    public function setTypeHint($type) {
+        return $this->setType($type);
+    }
+
+    /**
+     * Make the parameter accept the value by reference.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeByRef() {
+        $this->byRef = true;
+
+        return $this;
+    }
+
+    /**
+     * Make the parameter variadic
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeVariadic() {
+        $this->variadic = true;
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built parameter node.
+     *
+     * @return Node\Param The built parameter node
+     */
+    public function getNode() : Node {
+        return new Node\Param(
+            new Node\Expr\Variable($this->name),
+            $this->default, $this->type, $this->byRef, $this->variadic, [], 0, $this->attributeGroups
+        );
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Property.php

@@ -0,0 +1,161 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+use PhpParser\Node\ComplexType;
+
+class Property implements PhpParser\Builder
+{
+    protected $name;
+
+    protected $flags = 0;
+    protected $default = null;
+    protected $attributes = [];
+
+    /** @var null|Identifier|Name|NullableType */
+    protected $type;
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates a property builder.
+     *
+     * @param string $name Name of the property
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Makes the property public.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePublic() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PUBLIC);
+
+        return $this;
+    }
+
+    /**
+     * Makes the property protected.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeProtected() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PROTECTED);
+
+        return $this;
+    }
+
+    /**
+     * Makes the property private.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePrivate() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_PRIVATE);
+
+        return $this;
+    }
+
+    /**
+     * Makes the property static.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeStatic() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_STATIC);
+
+        return $this;
+    }
+
+    /**
+     * Makes the property readonly.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeReadonly() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Stmt\Class_::MODIFIER_READONLY);
+
+        return $this;
+    }
+
+    /**
+     * Sets default value for the property.
+     *
+     * @param mixed $value Default value to use
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDefault($value) {
+        $this->default = BuilderHelpers::normalizeValue($value);
+
+        return $this;
+    }
+
+    /**
+     * Sets doc comment for the property.
+     *
+     * @param PhpParser\Comment\Doc|string $docComment Doc comment to set
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function setDocComment($docComment) {
+        $this->attributes = [
+            'comments' => [BuilderHelpers::normalizeDocComment($docComment)]
+        ];
+
+        return $this;
+    }
+
+    /**
+     * Sets the property type for PHP 7.4+.
+     *
+     * @param string|Name|Identifier|ComplexType $type
+     *
+     * @return $this
+     */
+    public function setType($type) {
+        $this->type = BuilderHelpers::normalizeType($type);
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built class node.
+     *
+     * @return Stmt\Property The built property node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Property(
+            $this->flags !== 0 ? $this->flags : Stmt\Class_::MODIFIER_PUBLIC,
+            [
+                new Stmt\PropertyProperty($this->name, $this->default)
+            ],
+            $this->attributes,
+            $this->type,
+            $this->attributeGroups
+        );
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/TraitUse.php

@@ -0,0 +1,64 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser\Builder;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class TraitUse implements Builder
+{
+    protected $traits = [];
+    protected $adaptations = [];
+
+    /**
+     * Creates a trait use builder.
+     *
+     * @param Node\Name|string ...$traits Names of used traits
+     */
+    public function __construct(...$traits) {
+        foreach ($traits as $trait) {
+            $this->and($trait);
+        }
+    }
+
+    /**
+     * Adds used trait.
+     *
+     * @param Node\Name|string $trait Trait name
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function and($trait) {
+        $this->traits[] = BuilderHelpers::normalizeName($trait);
+        return $this;
+    }
+
+    /**
+     * Adds trait adaptation.
+     *
+     * @param Stmt\TraitUseAdaptation|Builder\TraitUseAdaptation $adaptation Trait adaptation
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function with($adaptation) {
+        $adaptation = BuilderHelpers::normalizeNode($adaptation);
+
+        if (!$adaptation instanceof Stmt\TraitUseAdaptation) {
+            throw new \LogicException('Adaptation must have type TraitUseAdaptation');
+        }
+
+        $this->adaptations[] = $adaptation;
+        return $this;
+    }
+
+    /**
+     * Returns the built node.
+     *
+     * @return Node The built node
+     */
+    public function getNode() : Node {
+        return new Stmt\TraitUse($this->traits, $this->adaptations);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/TraitUseAdaptation.php

@@ -0,0 +1,148 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser\Builder;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class TraitUseAdaptation implements Builder
+{
+    const TYPE_UNDEFINED  = 0;
+    const TYPE_ALIAS      = 1;
+    const TYPE_PRECEDENCE = 2;
+
+    /** @var int Type of building adaptation */
+    protected $type;
+
+    protected $trait;
+    protected $method;
+
+    protected $modifier = null;
+    protected $alias = null;
+
+    protected $insteadof = [];
+
+    /**
+     * Creates a trait use adaptation builder.
+     *
+     * @param Node\Name|string|null  $trait  Name of adaptated trait
+     * @param Node\Identifier|string $method Name of adaptated method
+     */
+    public function __construct($trait, $method) {
+        $this->type = self::TYPE_UNDEFINED;
+
+        $this->trait = is_null($trait)? null: BuilderHelpers::normalizeName($trait);
+        $this->method = BuilderHelpers::normalizeIdentifier($method);
+    }
+
+    /**
+     * Sets alias of method.
+     *
+     * @param Node\Identifier|string $alias Alias for adaptated method
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function as($alias) {
+        if ($this->type === self::TYPE_UNDEFINED) {
+            $this->type = self::TYPE_ALIAS;
+        }
+
+        if ($this->type !== self::TYPE_ALIAS) {
+            throw new \LogicException('Cannot set alias for not alias adaptation buider');
+        }
+
+        $this->alias = $alias;
+        return $this;
+    }
+
+    /**
+     * Sets adaptated method public.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePublic() {
+        $this->setModifier(Stmt\Class_::MODIFIER_PUBLIC);
+        return $this;
+    }
+
+    /**
+     * Sets adaptated method protected.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeProtected() {
+        $this->setModifier(Stmt\Class_::MODIFIER_PROTECTED);
+        return $this;
+    }
+
+    /**
+     * Sets adaptated method private.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makePrivate() {
+        $this->setModifier(Stmt\Class_::MODIFIER_PRIVATE);
+        return $this;
+    }
+
+    /**
+     * Adds overwritten traits.
+     *
+     * @param Node\Name|string ...$traits Traits for overwrite
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function insteadof(...$traits) {
+        if ($this->type === self::TYPE_UNDEFINED) {
+            if (is_null($this->trait)) {
+                throw new \LogicException('Precedence adaptation must have trait');
+            }
+
+            $this->type = self::TYPE_PRECEDENCE;
+        }
+
+        if ($this->type !== self::TYPE_PRECEDENCE) {
+            throw new \LogicException('Cannot add overwritten traits for not precedence adaptation buider');
+        }
+
+        foreach ($traits as $trait) {
+            $this->insteadof[] = BuilderHelpers::normalizeName($trait);
+        }
+
+        return $this;
+    }
+
+    protected function setModifier(int $modifier) {
+        if ($this->type === self::TYPE_UNDEFINED) {
+            $this->type = self::TYPE_ALIAS;
+        }
+
+        if ($this->type !== self::TYPE_ALIAS) {
+            throw new \LogicException('Cannot set access modifier for not alias adaptation buider');
+        }
+
+        if (is_null($this->modifier)) {
+            $this->modifier = $modifier;
+        } else {
+            throw new \LogicException('Multiple access type modifiers are not allowed');
+        }
+    }
+
+    /**
+     * Returns the built node.
+     *
+     * @return Node The built node
+     */
+    public function getNode() : Node {
+        switch ($this->type) {
+            case self::TYPE_ALIAS:
+                return new Stmt\TraitUseAdaptation\Alias($this->trait, $this->method, $this->modifier, $this->alias);
+            case self::TYPE_PRECEDENCE:
+                return new Stmt\TraitUseAdaptation\Precedence($this->trait, $this->method, $this->insteadof);
+            default:
+                throw new \LogicException('Type of adaptation is not defined');
+        }
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Trait_.php

@@ -0,0 +1,78 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Trait_ extends Declaration
+{
+    protected $name;
+    protected $uses = [];
+    protected $properties = [];
+    protected $methods = [];
+
+    /** @var Node\AttributeGroup[] */
+    protected $attributeGroups = [];
+
+    /**
+     * Creates an interface builder.
+     *
+     * @param string $name Name of the interface
+     */
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Adds a statement.
+     *
+     * @param Stmt|PhpParser\Builder $stmt The statement to add
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addStmt($stmt) {
+        $stmt = BuilderHelpers::normalizeNode($stmt);
+
+        if ($stmt instanceof Stmt\Property) {
+            $this->properties[] = $stmt;
+        } elseif ($stmt instanceof Stmt\ClassMethod) {
+            $this->methods[] = $stmt;
+        } elseif ($stmt instanceof Stmt\TraitUse) {
+            $this->uses[] = $stmt;
+        } else {
+            throw new \LogicException(sprintf('Unexpected node of type "%s"', $stmt->getType()));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds an attribute group.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function addAttribute($attribute) {
+        $this->attributeGroups[] = BuilderHelpers::normalizeAttribute($attribute);
+
+        return $this;
+    }
+
+    /**
+     * Returns the built trait node.
+     *
+     * @return Stmt\Trait_ The built interface node
+     */
+    public function getNode() : PhpParser\Node {
+        return new Stmt\Trait_(
+            $this->name, [
+                'stmts' => array_merge($this->uses, $this->properties, $this->methods),
+                'attrGroups' => $this->attributeGroups,
+            ], $this->attributes
+        );
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Builder/Use_.php

@@ -0,0 +1,49 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Builder;
+
+use PhpParser\Builder;
+use PhpParser\BuilderHelpers;
+use PhpParser\Node;
+use PhpParser\Node\Stmt;
+
+class Use_ implements Builder
+{
+    protected $name;
+    protected $type;
+    protected $alias = null;
+
+    /**
+     * Creates a name use (alias) builder.
+     *
+     * @param Node\Name|string $name Name of the entity (namespace, class, function, constant) to alias
+     * @param int              $type One of the Stmt\Use_::TYPE_* constants
+     */
+    public function __construct($name, int $type) {
+        $this->name = BuilderHelpers::normalizeName($name);
+        $this->type = $type;
+    }
+
+    /**
+     * Sets alias for used name.
+     *
+     * @param string $alias Alias to use (last component of full name by default)
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function as(string $alias) {
+        $this->alias = $alias;
+        return $this;
+    }
+
+    /**
+     * Returns the built node.
+     *
+     * @return Stmt\Use_ The built node
+     */
+    public function getNode() : Node {
+        return new Stmt\Use_([
+            new Stmt\UseUse($this->name, $this->alias)
+        ], $this->type);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/BuilderFactory.php

@@ -0,0 +1,399 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+use PhpParser\Node\Arg;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Expr\BinaryOp\Concat;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+use PhpParser\Node\Scalar\String_;
+use PhpParser\Node\Stmt\Use_;
+
+class BuilderFactory
+{
+    /**
+     * Creates an attribute node.
+     *
+     * @param string|Name $name Name of the attribute
+     * @param array       $args Attribute named arguments
+     *
+     * @return Node\Attribute
+     */
+    public function attribute($name, array $args = []) : Node\Attribute {
+        return new Node\Attribute(
+            BuilderHelpers::normalizeName($name),
+            $this->args($args)
+        );
+    }
+
+    /**
+     * Creates a namespace builder.
+     *
+     * @param null|string|Node\Name $name Name of the namespace
+     *
+     * @return Builder\Namespace_ The created namespace builder
+     */
+    public function namespace($name) : Builder\Namespace_ {
+        return new Builder\Namespace_($name);
+    }
+
+    /**
+     * Creates a class builder.
+     *
+     * @param string $name Name of the class
+     *
+     * @return Builder\Class_ The created class builder
+     */
+    public function class(string $name) : Builder\Class_ {
+        return new Builder\Class_($name);
+    }
+
+    /**
+     * Creates an interface builder.
+     *
+     * @param string $name Name of the interface
+     *
+     * @return Builder\Interface_ The created interface builder
+     */
+    public function interface(string $name) : Builder\Interface_ {
+        return new Builder\Interface_($name);
+    }
+
+    /**
+     * Creates a trait builder.
+     *
+     * @param string $name Name of the trait
+     *
+     * @return Builder\Trait_ The created trait builder
+     */
+    public function trait(string $name) : Builder\Trait_ {
+        return new Builder\Trait_($name);
+    }
+
+    /**
+     * Creates an enum builder.
+     *
+     * @param string $name Name of the enum
+     *
+     * @return Builder\Enum_ The created enum builder
+     */
+    public function enum(string $name) : Builder\Enum_ {
+        return new Builder\Enum_($name);
+    }
+
+    /**
+     * Creates a trait use builder.
+     *
+     * @param Node\Name|string ...$traits Trait names
+     *
+     * @return Builder\TraitUse The create trait use builder
+     */
+    public function useTrait(...$traits) : Builder\TraitUse {
+        return new Builder\TraitUse(...$traits);
+    }
+
+    /**
+     * Creates a trait use adaptation builder.
+     *
+     * @param Node\Name|string|null  $trait  Trait name
+     * @param Node\Identifier|string $method Method name
+     *
+     * @return Builder\TraitUseAdaptation The create trait use adaptation builder
+     */
+    public function traitUseAdaptation($trait, $method = null) : Builder\TraitUseAdaptation {
+        if ($method === null) {
+            $method = $trait;
+            $trait = null;
+        }
+
+        return new Builder\TraitUseAdaptation($trait, $method);
+    }
+
+    /**
+     * Creates a method builder.
+     *
+     * @param string $name Name of the method
+     *
+     * @return Builder\Method The created method builder
+     */
+    public function method(string $name) : Builder\Method {
+        return new Builder\Method($name);
+    }
+
+    /**
+     * Creates a parameter builder.
+     *
+     * @param string $name Name of the parameter
+     *
+     * @return Builder\Param The created parameter builder
+     */
+    public function param(string $name) : Builder\Param {
+        return new Builder\Param($name);
+    }
+
+    /**
+     * Creates a property builder.
+     *
+     * @param string $name Name of the property
+     *
+     * @return Builder\Property The created property builder
+     */
+    public function property(string $name) : Builder\Property {
+        return new Builder\Property($name);
+    }
+
+    /**
+     * Creates a function builder.
+     *
+     * @param string $name Name of the function
+     *
+     * @return Builder\Function_ The created function builder
+     */
+    public function function(string $name) : Builder\Function_ {
+        return new Builder\Function_($name);
+    }
+
+    /**
+     * Creates a namespace/class use builder.
+     *
+     * @param Node\Name|string $name Name of the entity (namespace or class) to alias
+     *
+     * @return Builder\Use_ The created use builder
+     */
+    public function use($name) : Builder\Use_ {
+        return new Builder\Use_($name, Use_::TYPE_NORMAL);
+    }
+
+    /**
+     * Creates a function use builder.
+     *
+     * @param Node\Name|string $name Name of the function to alias
+     *
+     * @return Builder\Use_ The created use function builder
+     */
+    public function useFunction($name) : Builder\Use_ {
+        return new Builder\Use_($name, Use_::TYPE_FUNCTION);
+    }
+
+    /**
+     * Creates a constant use builder.
+     *
+     * @param Node\Name|string $name Name of the const to alias
+     *
+     * @return Builder\Use_ The created use const builder
+     */
+    public function useConst($name) : Builder\Use_ {
+        return new Builder\Use_($name, Use_::TYPE_CONSTANT);
+    }
+
+    /**
+     * Creates a class constant builder.
+     *
+     * @param string|Identifier                          $name  Name
+     * @param Node\Expr|bool|null|int|float|string|array $value Value
+     *
+     * @return Builder\ClassConst The created use const builder
+     */
+    public function classConst($name, $value) : Builder\ClassConst {
+        return new Builder\ClassConst($name, $value);
+    }
+
+    /**
+     * Creates an enum case builder.
+     *
+     * @param string|Identifier $name  Name
+     *
+     * @return Builder\EnumCase The created use const builder
+     */
+    public function enumCase($name) : Builder\EnumCase {
+        return new Builder\EnumCase($name);
+    }
+
+    /**
+     * Creates node a for a literal value.
+     *
+     * @param Expr|bool|null|int|float|string|array $value $value
+     *
+     * @return Expr
+     */
+    public function val($value) : Expr {
+        return BuilderHelpers::normalizeValue($value);
+    }
+
+    /**
+     * Creates variable node.
+     *
+     * @param string|Expr $name Name
+     *
+     * @return Expr\Variable
+     */
+    public function var($name) : Expr\Variable {
+        if (!\is_string($name) && !$name instanceof Expr) {
+            throw new \LogicException('Variable name must be string or Expr');
+        }
+
+        return new Expr\Variable($name);
+    }
+
+    /**
+     * Normalizes an argument list.
+     *
+     * Creates Arg nodes for all arguments and converts literal values to expressions.
+     *
+     * @param array $args List of arguments to normalize
+     *
+     * @return Arg[]
+     */
+    public function args(array $args) : array {
+        $normalizedArgs = [];
+        foreach ($args as $key => $arg) {
+            if (!($arg instanceof Arg)) {
+                $arg = new Arg(BuilderHelpers::normalizeValue($arg));
+            }
+            if (\is_string($key)) {
+                $arg->name = BuilderHelpers::normalizeIdentifier($key);
+            }
+            $normalizedArgs[] = $arg;
+        }
+        return $normalizedArgs;
+    }
+
+    /**
+     * Creates a function call node.
+     *
+     * @param string|Name|Expr $name Function name
+     * @param array            $args Function arguments
+     *
+     * @return Expr\FuncCall
+     */
+    public function funcCall($name, array $args = []) : Expr\FuncCall {
+        return new Expr\FuncCall(
+            BuilderHelpers::normalizeNameOrExpr($name),
+            $this->args($args)
+        );
+    }
+
+    /**
+     * Creates a method call node.
+     *
+     * @param Expr                   $var  Variable the method is called on
+     * @param string|Identifier|Expr $name Method name
+     * @param array                  $args Method arguments
+     *
+     * @return Expr\MethodCall
+     */
+    public function methodCall(Expr $var, $name, array $args = []) : Expr\MethodCall {
+        return new Expr\MethodCall(
+            $var,
+            BuilderHelpers::normalizeIdentifierOrExpr($name),
+            $this->args($args)
+        );
+    }
+
+    /**
+     * Creates a static method call node.
+     *
+     * @param string|Name|Expr       $class Class name
+     * @param string|Identifier|Expr $name  Method name
+     * @param array                  $args  Method arguments
+     *
+     * @return Expr\StaticCall
+     */
+    public function staticCall($class, $name, array $args = []) : Expr\StaticCall {
+        return new Expr\StaticCall(
+            BuilderHelpers::normalizeNameOrExpr($class),
+            BuilderHelpers::normalizeIdentifierOrExpr($name),
+            $this->args($args)
+        );
+    }
+
+    /**
+     * Creates an object creation node.
+     *
+     * @param string|Name|Expr $class Class name
+     * @param array            $args  Constructor arguments
+     *
+     * @return Expr\New_
+     */
+    public function new($class, array $args = []) : Expr\New_ {
+        return new Expr\New_(
+            BuilderHelpers::normalizeNameOrExpr($class),
+            $this->args($args)
+        );
+    }
+
+    /**
+     * Creates a constant fetch node.
+     *
+     * @param string|Name $name Constant name
+     *
+     * @return Expr\ConstFetch
+     */
+    public function constFetch($name) : Expr\ConstFetch {
+        return new Expr\ConstFetch(BuilderHelpers::normalizeName($name));
+    }
+
+    /**
+     * Creates a property fetch node.
+     *
+     * @param Expr                   $var  Variable holding object
+     * @param string|Identifier|Expr $name Property name
+     *
+     * @return Expr\PropertyFetch
+     */
+    public function propertyFetch(Expr $var, $name) : Expr\PropertyFetch {
+        return new Expr\PropertyFetch($var, BuilderHelpers::normalizeIdentifierOrExpr($name));
+    }
+
+    /**
+     * Creates a class constant fetch node.
+     *
+     * @param string|Name|Expr  $class Class name
+     * @param string|Identifier $name  Constant name
+     *
+     * @return Expr\ClassConstFetch
+     */
+    public function classConstFetch($class, $name): Expr\ClassConstFetch {
+        return new Expr\ClassConstFetch(
+            BuilderHelpers::normalizeNameOrExpr($class),
+            BuilderHelpers::normalizeIdentifier($name)
+        );
+    }
+
+    /**
+     * Creates nested Concat nodes from a list of expressions.
+     *
+     * @param Expr|string ...$exprs Expressions or literal strings
+     *
+     * @return Concat
+     */
+    public function concat(...$exprs) : Concat {
+        $numExprs = count($exprs);
+        if ($numExprs < 2) {
+            throw new \LogicException('Expected at least two expressions');
+        }
+
+        $lastConcat = $this->normalizeStringExpr($exprs[0]);
+        for ($i = 1; $i < $numExprs; $i++) {
+            $lastConcat = new Concat($lastConcat, $this->normalizeStringExpr($exprs[$i]));
+        }
+        return $lastConcat;
+    }
+
+    /**
+     * @param string|Expr $expr
+     * @return Expr
+     */
+    private function normalizeStringExpr($expr) : Expr {
+        if ($expr instanceof Expr) {
+            return $expr;
+        }
+
+        if (\is_string($expr)) {
+            return new String_($expr);
+        }
+
+        throw new \LogicException('Expected string or Expr');
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/BuilderHelpers.php

@@ -0,0 +1,335 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+use PhpParser\Node\ComplexType;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+use PhpParser\Node\NullableType;
+use PhpParser\Node\Scalar;
+use PhpParser\Node\Stmt;
+
+/**
+ * This class defines helpers used in the implementation of builders. Don't use it directly.
+ *
+ * @internal
+ */
+final class BuilderHelpers
+{
+    /**
+     * Normalizes a node: Converts builder objects to nodes.
+     *
+     * @param Node|Builder $node The node to normalize
+     *
+     * @return Node The normalized node
+     */
+    public static function normalizeNode($node) : Node {
+        if ($node instanceof Builder) {
+            return $node->getNode();
+        }
+
+        if ($node instanceof Node) {
+            return $node;
+        }
+
+        throw new \LogicException('Expected node or builder object');
+    }
+
+    /**
+     * Normalizes a node to a statement.
+     *
+     * Expressions are wrapped in a Stmt\Expression node.
+     *
+     * @param Node|Builder $node The node to normalize
+     *
+     * @return Stmt The normalized statement node
+     */
+    public static function normalizeStmt($node) : Stmt {
+        $node = self::normalizeNode($node);
+        if ($node instanceof Stmt) {
+            return $node;
+        }
+
+        if ($node instanceof Expr) {
+            return new Stmt\Expression($node);
+        }
+
+        throw new \LogicException('Expected statement or expression node');
+    }
+
+    /**
+     * Normalizes strings to Identifier.
+     *
+     * @param string|Identifier $name The identifier to normalize
+     *
+     * @return Identifier The normalized identifier
+     */
+    public static function normalizeIdentifier($name) : Identifier {
+        if ($name instanceof Identifier) {
+            return $name;
+        }
+
+        if (\is_string($name)) {
+            return new Identifier($name);
+        }
+
+        throw new \LogicException('Expected string or instance of Node\Identifier');
+    }
+
+    /**
+     * Normalizes strings to Identifier, also allowing expressions.
+     *
+     * @param string|Identifier|Expr $name The identifier to normalize
+     *
+     * @return Identifier|Expr The normalized identifier or expression
+     */
+    public static function normalizeIdentifierOrExpr($name) {
+        if ($name instanceof Identifier || $name instanceof Expr) {
+            return $name;
+        }
+
+        if (\is_string($name)) {
+            return new Identifier($name);
+        }
+
+        throw new \LogicException('Expected string or instance of Node\Identifier or Node\Expr');
+    }
+
+    /**
+     * Normalizes a name: Converts string names to Name nodes.
+     *
+     * @param Name|string $name The name to normalize
+     *
+     * @return Name The normalized name
+     */
+    public static function normalizeName($name) : Name {
+        if ($name instanceof Name) {
+            return $name;
+        }
+
+        if (is_string($name)) {
+            if (!$name) {
+                throw new \LogicException('Name cannot be empty');
+            }
+
+            if ($name[0] === '\\') {
+                return new Name\FullyQualified(substr($name, 1));
+            }
+
+            if (0 === strpos($name, 'namespace\\')) {
+                return new Name\Relative(substr($name, strlen('namespace\\')));
+            }
+
+            return new Name($name);
+        }
+
+        throw new \LogicException('Name must be a string or an instance of Node\Name');
+    }
+
+    /**
+     * Normalizes a name: Converts string names to Name nodes, while also allowing expressions.
+     *
+     * @param Expr|Name|string $name The name to normalize
+     *
+     * @return Name|Expr The normalized name or expression
+     */
+    public static function normalizeNameOrExpr($name) {
+        if ($name instanceof Expr) {
+            return $name;
+        }
+
+        if (!is_string($name) && !($name instanceof Name)) {
+            throw new \LogicException(
+                'Name must be a string or an instance of Node\Name or Node\Expr'
+            );
+        }
+
+        return self::normalizeName($name);
+    }
+
+    /**
+     * Normalizes a type: Converts plain-text type names into proper AST representation.
+     *
+     * In particular, builtin types become Identifiers, custom types become Names and nullables
+     * are wrapped in NullableType nodes.
+     *
+     * @param string|Name|Identifier|ComplexType $type The type to normalize
+     *
+     * @return Name|Identifier|ComplexType The normalized type
+     */
+    public static function normalizeType($type) {
+        if (!is_string($type)) {
+            if (
+                !$type instanceof Name && !$type instanceof Identifier &&
+                !$type instanceof ComplexType
+            ) {
+                throw new \LogicException(
+                    'Type must be a string, or an instance of Name, Identifier or ComplexType'
+                );
+            }
+            return $type;
+        }
+
+        $nullable = false;
+        if (strlen($type) > 0 && $type[0] === '?') {
+            $nullable = true;
+            $type = substr($type, 1);
+        }
+
+        $builtinTypes = [
+            'array',
+            'callable',
+            'bool',
+            'int',
+            'float',
+            'string',
+            'iterable',
+            'void',
+            'object',
+            'null',
+            'false',
+            'mixed',
+            'never',
+            'true',
+        ];
+
+        $lowerType = strtolower($type);
+        if (in_array($lowerType, $builtinTypes)) {
+            $type = new Identifier($lowerType);
+        } else {
+            $type = self::normalizeName($type);
+        }
+
+        $notNullableTypes = [
+            'void', 'mixed', 'never',
+        ];
+        if ($nullable && in_array((string) $type, $notNullableTypes)) {
+            throw new \LogicException(sprintf('%s type cannot be nullable', $type));
+        }
+
+        return $nullable ? new NullableType($type) : $type;
+    }
+
+    /**
+     * Normalizes a value: Converts nulls, booleans, integers,
+     * floats, strings and arrays into their respective nodes
+     *
+     * @param Node\Expr|bool|null|int|float|string|array $value The value to normalize
+     *
+     * @return Expr The normalized value
+     */
+    public static function normalizeValue($value) : Expr {
+        if ($value instanceof Node\Expr) {
+            return $value;
+        }
+
+        if (is_null($value)) {
+            return new Expr\ConstFetch(
+                new Name('null')
+            );
+        }
+
+        if (is_bool($value)) {
+            return new Expr\ConstFetch(
+                new Name($value ? 'true' : 'false')
+            );
+        }
+
+        if (is_int($value)) {
+            return new Scalar\LNumber($value);
+        }
+
+        if (is_float($value)) {
+            return new Scalar\DNumber($value);
+        }
+
+        if (is_string($value)) {
+            return new Scalar\String_($value);
+        }
+
+        if (is_array($value)) {
+            $items = [];
+            $lastKey = -1;
+            foreach ($value as $itemKey => $itemValue) {
+                // for consecutive, numeric keys don't generate keys
+                if (null !== $lastKey && ++$lastKey === $itemKey) {
+                    $items[] = new Expr\ArrayItem(
+                        self::normalizeValue($itemValue)
+                    );
+                } else {
+                    $lastKey = null;
+                    $items[] = new Expr\ArrayItem(
+                        self::normalizeValue($itemValue),
+                        self::normalizeValue($itemKey)
+                    );
+                }
+            }
+
+            return new Expr\Array_($items);
+        }
+
+        throw new \LogicException('Invalid value');
+    }
+
+    /**
+     * Normalizes a doc comment: Converts plain strings to PhpParser\Comment\Doc.
+     *
+     * @param Comment\Doc|string $docComment The doc comment to normalize
+     *
+     * @return Comment\Doc The normalized doc comment
+     */
+    public static function normalizeDocComment($docComment) : Comment\Doc {
+        if ($docComment instanceof Comment\Doc) {
+            return $docComment;
+        }
+
+        if (is_string($docComment)) {
+            return new Comment\Doc($docComment);
+        }
+
+        throw new \LogicException('Doc comment must be a string or an instance of PhpParser\Comment\Doc');
+    }
+
+    /**
+     * Normalizes a attribute: Converts attribute to the Attribute Group if needed.
+     *
+     * @param Node\Attribute|Node\AttributeGroup $attribute
+     *
+     * @return Node\AttributeGroup The Attribute Group
+     */
+    public static function normalizeAttribute($attribute) : Node\AttributeGroup
+    {
+        if ($attribute instanceof Node\AttributeGroup) {
+            return $attribute;
+        }
+
+        if (!($attribute instanceof Node\Attribute)) {
+            throw new \LogicException('Attribute must be an instance of PhpParser\Node\Attribute or PhpParser\Node\AttributeGroup');
+        }
+
+        return new Node\AttributeGroup([$attribute]);
+    }
+
+    /**
+     * Adds a modifier and returns new modifier bitmask.
+     *
+     * @param int $modifiers Existing modifiers
+     * @param int $modifier  Modifier to set
+     *
+     * @return int New modifiers
+     */
+    public static function addModifier(int $modifiers, int $modifier) : int {
+        Stmt\Class_::verifyModifier($modifiers, $modifier);
+        return $modifiers | $modifier;
+    }
+
+    /**
+     * Adds a modifier and returns new modifier bitmask.
+     * @return int New modifiers
+     */
+    public static function addClassModifier(int $existingModifiers, int $modifierToSet) : int {
+        Stmt\Class_::verifyClassModifier($existingModifiers, $modifierToSet);
+        return $existingModifiers | $modifierToSet;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Comment.php

@@ -0,0 +1,239 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+class Comment implements \JsonSerializable
+{
+    protected $text;
+    protected $startLine;
+    protected $startFilePos;
+    protected $startTokenPos;
+    protected $endLine;
+    protected $endFilePos;
+    protected $endTokenPos;
+
+    /**
+     * Constructs a comment node.
+     *
+     * @param string $text          Comment text (including comment delimiters like /*)
+     * @param int    $startLine     Line number the comment started on
+     * @param int    $startFilePos  File offset the comment started on
+     * @param int    $startTokenPos Token offset the comment started on
+     */
+    public function __construct(
+        string $text,
+        int $startLine = -1, int $startFilePos = -1, int $startTokenPos = -1,
+        int $endLine = -1, int $endFilePos = -1, int $endTokenPos = -1
+    ) {
+        $this->text = $text;
+        $this->startLine = $startLine;
+        $this->startFilePos = $startFilePos;
+        $this->startTokenPos = $startTokenPos;
+        $this->endLine = $endLine;
+        $this->endFilePos = $endFilePos;
+        $this->endTokenPos = $endTokenPos;
+    }
+
+    /**
+     * Gets the comment text.
+     *
+     * @return string The comment text (including comment delimiters like /*)
+     */
+    public function getText() : string {
+        return $this->text;
+    }
+
+    /**
+     * Gets the line number the comment started on.
+     *
+     * @return int Line number (or -1 if not available)
+     */
+    public function getStartLine() : int {
+        return $this->startLine;
+    }
+
+    /**
+     * Gets the file offset the comment started on.
+     *
+     * @return int File offset (or -1 if not available)
+     */
+    public function getStartFilePos() : int {
+        return $this->startFilePos;
+    }
+
+    /**
+     * Gets the token offset the comment started on.
+     *
+     * @return int Token offset (or -1 if not available)
+     */
+    public function getStartTokenPos() : int {
+        return $this->startTokenPos;
+    }
+
+    /**
+     * Gets the line number the comment ends on.
+     *
+     * @return int Line number (or -1 if not available)
+     */
+    public function getEndLine() : int {
+        return $this->endLine;
+    }
+
+    /**
+     * Gets the file offset the comment ends on.
+     *
+     * @return int File offset (or -1 if not available)
+     */
+    public function getEndFilePos() : int {
+        return $this->endFilePos;
+    }
+
+    /**
+     * Gets the token offset the comment ends on.
+     *
+     * @return int Token offset (or -1 if not available)
+     */
+    public function getEndTokenPos() : int {
+        return $this->endTokenPos;
+    }
+
+    /**
+     * Gets the line number the comment started on.
+     *
+     * @deprecated Use getStartLine() instead
+     *
+     * @return int Line number
+     */
+    public function getLine() : int {
+        return $this->startLine;
+    }
+
+    /**
+     * Gets the file offset the comment started on.
+     *
+     * @deprecated Use getStartFilePos() instead
+     *
+     * @return int File offset
+     */
+    public function getFilePos() : int {
+        return $this->startFilePos;
+    }
+
+    /**
+     * Gets the token offset the comment started on.
+     *
+     * @deprecated Use getStartTokenPos() instead
+     *
+     * @return int Token offset
+     */
+    public function getTokenPos() : int {
+        return $this->startTokenPos;
+    }
+
+    /**
+     * Gets the comment text.
+     *
+     * @return string The comment text (including comment delimiters like /*)
+     */
+    public function __toString() : string {
+        return $this->text;
+    }
+
+    /**
+     * Gets the reformatted comment text.
+     *
+     * "Reformatted" here means that we try to clean up the whitespace at the
+     * starts of the lines. This is necessary because we receive the comments
+     * without trailing whitespace on the first line, but with trailing whitespace
+     * on all subsequent lines.
+     *
+     * @return mixed|string
+     */
+    public function getReformattedText() {
+        $text = trim($this->text);
+        $newlinePos = strpos($text, "\n");
+        if (false === $newlinePos) {
+            // Single line comments don't need further processing
+            return $text;
+        } elseif (preg_match('((*BSR_ANYCRLF)(*ANYCRLF)^.*(?:\R\s+\*.*)+$)', $text)) {
+            // Multi line comment of the type
+            //
+            //     /*
+            //      * Some text.
+            //      * Some more text.
+            //      */
+            //
+            // is handled by replacing the whitespace sequences before the * by a single space
+            return preg_replace('(^\s+\*)m', ' *', $this->text);
+        } elseif (preg_match('(^/\*\*?\s*[\r\n])', $text) && preg_match('(\n(\s*)\*/$)', $text, $matches)) {
+            // Multi line comment of the type
+            //
+            //    /*
+            //        Some text.
+            //        Some more text.
+            //    */
+            //
+            // is handled by removing the whitespace sequence on the line before the closing
+            // */ on all lines. So if the last line is "    */", then "    " is removed at the
+            // start of all lines.
+            return preg_replace('(^' . preg_quote($matches[1]) . ')m', '', $text);
+        } elseif (preg_match('(^/\*\*?\s*(?!\s))', $text, $matches)) {
+            // Multi line comment of the type
+            //
+            //     /* Some text.
+            //        Some more text.
+            //          Indented text.
+            //        Even more text. */
+            //
+            // is handled by removing the difference between the shortest whitespace prefix on all
+            // lines and the length of the "/* " opening sequence.
+            $prefixLen = $this->getShortestWhitespacePrefixLen(substr($text, $newlinePos + 1));
+            $removeLen = $prefixLen - strlen($matches[0]);
+            return preg_replace('(^\s{' . $removeLen . '})m', '', $text);
+        }
+
+        // No idea how to format this comment, so simply return as is
+        return $text;
+    }
+
+    /**
+     * Get length of shortest whitespace prefix (at the start of a line).
+     *
+     * If there is a line with no prefix whitespace, 0 is a valid return value.
+     *
+     * @param string $str String to check
+     * @return int Length in characters. Tabs count as single characters.
+     */
+    private function getShortestWhitespacePrefixLen(string $str) : int {
+        $lines = explode("\n", $str);
+        $shortestPrefixLen = \INF;
+        foreach ($lines as $line) {
+            preg_match('(^\s*)', $line, $matches);
+            $prefixLen = strlen($matches[0]);
+            if ($prefixLen < $shortestPrefixLen) {
+                $shortestPrefixLen = $prefixLen;
+            }
+        }
+        return $shortestPrefixLen;
+    }
+
+    /**
+     * @return       array
+     * @psalm-return array{nodeType:string, text:mixed, line:mixed, filePos:mixed}
+     */
+    public function jsonSerialize() : array {
+        // Technically not a node, but we make it look like one anyway
+        $type = $this instanceof Comment\Doc ? 'Comment_Doc' : 'Comment';
+        return [
+            'nodeType' => $type,
+            'text' => $this->text,
+            // TODO: Rename these to include "start".
+            'line' => $this->startLine,
+            'filePos' => $this->startFilePos,
+            'tokenPos' => $this->startTokenPos,
+            'endLine' => $this->endLine,
+            'endFilePos' => $this->endFilePos,
+            'endTokenPos' => $this->endTokenPos,
+        ];
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Comment/Doc.php

@@ -0,0 +1,7 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Comment;
+
+class Doc extends \PhpParser\Comment
+{
+}

vendor/nikic/php-parser/lib/PhpParser/ConstExprEvaluationException.php

@@ -0,0 +1,6 @@
+<?php
+
+namespace PhpParser;
+
+class ConstExprEvaluationException extends \Exception
+{}

vendor/nikic/php-parser/lib/PhpParser/ConstExprEvaluator.php

@@ -0,0 +1,229 @@
+<?php
+
+namespace PhpParser;
+
+use function array_merge;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Scalar;
+
+/**
+ * Evaluates constant expressions.
+ *
+ * This evaluator is able to evaluate all constant expressions (as defined by PHP), which can be
+ * evaluated without further context. If a subexpression is not of this type, a user-provided
+ * fallback evaluator is invoked. To support all constant expressions that are also supported by
+ * PHP (and not already handled by this class), the fallback evaluator must be able to handle the
+ * following node types:
+ *
+ *  * All Scalar\MagicConst\* nodes.
+ *  * Expr\ConstFetch nodes. Only null/false/true are already handled by this class.
+ *  * Expr\ClassConstFetch nodes.
+ *
+ * The fallback evaluator should throw ConstExprEvaluationException for nodes it cannot evaluate.
+ *
+ * The evaluation is dependent on runtime configuration in two respects: Firstly, floating
+ * point to string conversions are affected by the precision ini setting. Secondly, they are also
+ * affected by the LC_NUMERIC locale.
+ */
+class ConstExprEvaluator
+{
+    private $fallbackEvaluator;
+
+    /**
+     * Create a constant expression evaluator.
+     *
+     * The provided fallback evaluator is invoked whenever a subexpression cannot be evaluated. See
+     * class doc comment for more information.
+     *
+     * @param callable|null $fallbackEvaluator To call if subexpression cannot be evaluated
+     */
+    public function __construct(callable $fallbackEvaluator = null) {
+        $this->fallbackEvaluator = $fallbackEvaluator ?? function(Expr $expr) {
+            throw new ConstExprEvaluationException(
+                "Expression of type {$expr->getType()} cannot be evaluated"
+            );
+        };
+    }
+
+    /**
+     * Silently evaluates a constant expression into a PHP value.
+     *
+     * Thrown Errors, warnings or notices will be converted into a ConstExprEvaluationException.
+     * The original source of the exception is available through getPrevious().
+     *
+     * If some part of the expression cannot be evaluated, the fallback evaluator passed to the
+     * constructor will be invoked. By default, if no fallback is provided, an exception of type
+     * ConstExprEvaluationException is thrown.
+     *
+     * See class doc comment for caveats and limitations.
+     *
+     * @param Expr $expr Constant expression to evaluate
+     * @return mixed Result of evaluation
+     *
+     * @throws ConstExprEvaluationException if the expression cannot be evaluated or an error occurred
+     */
+    public function evaluateSilently(Expr $expr) {
+        set_error_handler(function($num, $str, $file, $line) {
+            throw new \ErrorException($str, 0, $num, $file, $line);
+        });
+
+        try {
+            return $this->evaluate($expr);
+        } catch (\Throwable $e) {
+            if (!$e instanceof ConstExprEvaluationException) {
+                $e = new ConstExprEvaluationException(
+                    "An error occurred during constant expression evaluation", 0, $e);
+            }
+            throw $e;
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    /**
+     * Directly evaluates a constant expression into a PHP value.
+     *
+     * May generate Error exceptions, warnings or notices. Use evaluateSilently() to convert these
+     * into a ConstExprEvaluationException.
+     *
+     * If some part of the expression cannot be evaluated, the fallback evaluator passed to the
+     * constructor will be invoked. By default, if no fallback is provided, an exception of type
+     * ConstExprEvaluationException is thrown.
+     *
+     * See class doc comment for caveats and limitations.
+     *
+     * @param Expr $expr Constant expression to evaluate
+     * @return mixed Result of evaluation
+     *
+     * @throws ConstExprEvaluationException if the expression cannot be evaluated
+     */
+    public function evaluateDirectly(Expr $expr) {
+        return $this->evaluate($expr);
+    }
+
+    private function evaluate(Expr $expr) {
+        if ($expr instanceof Scalar\LNumber
+            || $expr instanceof Scalar\DNumber
+            || $expr instanceof Scalar\String_
+        ) {
+            return $expr->value;
+        }
+
+        if ($expr instanceof Expr\Array_) {
+            return $this->evaluateArray($expr);
+        }
+
+        // Unary operators
+        if ($expr instanceof Expr\UnaryPlus) {
+            return +$this->evaluate($expr->expr);
+        }
+        if ($expr instanceof Expr\UnaryMinus) {
+            return -$this->evaluate($expr->expr);
+        }
+        if ($expr instanceof Expr\BooleanNot) {
+            return !$this->evaluate($expr->expr);
+        }
+        if ($expr instanceof Expr\BitwiseNot) {
+            return ~$this->evaluate($expr->expr);
+        }
+
+        if ($expr instanceof Expr\BinaryOp) {
+            return $this->evaluateBinaryOp($expr);
+        }
+
+        if ($expr instanceof Expr\Ternary) {
+            return $this->evaluateTernary($expr);
+        }
+
+        if ($expr instanceof Expr\ArrayDimFetch && null !== $expr->dim) {
+            return $this->evaluate($expr->var)[$this->evaluate($expr->dim)];
+        }
+
+        if ($expr instanceof Expr\ConstFetch) {
+            return $this->evaluateConstFetch($expr);
+        }
+
+        return ($this->fallbackEvaluator)($expr);
+    }
+
+    private function evaluateArray(Expr\Array_ $expr) {
+        $array = [];
+        foreach ($expr->items as $item) {
+            if (null !== $item->key) {
+                $array[$this->evaluate($item->key)] = $this->evaluate($item->value);
+            } elseif ($item->unpack) {
+                $array = array_merge($array, $this->evaluate($item->value));
+            } else {
+                $array[] = $this->evaluate($item->value);
+            }
+        }
+        return $array;
+    }
+
+    private function evaluateTernary(Expr\Ternary $expr) {
+        if (null === $expr->if) {
+            return $this->evaluate($expr->cond) ?: $this->evaluate($expr->else);
+        }
+
+        return $this->evaluate($expr->cond)
+            ? $this->evaluate($expr->if)
+            : $this->evaluate($expr->else);
+    }
+
+    private function evaluateBinaryOp(Expr\BinaryOp $expr) {
+        if ($expr instanceof Expr\BinaryOp\Coalesce
+            && $expr->left instanceof Expr\ArrayDimFetch
+        ) {
+            // This needs to be special cased to respect BP_VAR_IS fetch semantics
+            return $this->evaluate($expr->left->var)[$this->evaluate($expr->left->dim)]
+                ?? $this->evaluate($expr->right);
+        }
+
+        // The evaluate() calls are repeated in each branch, because some of the operators are
+        // short-circuiting and evaluating the RHS in advance may be illegal in that case
+        $l = $expr->left;
+        $r = $expr->right;
+        switch ($expr->getOperatorSigil()) {
+            case '&':   return $this->evaluate($l) &   $this->evaluate($r);
+            case '|':   return $this->evaluate($l) |   $this->evaluate($r);
+            case '^':   return $this->evaluate($l) ^   $this->evaluate($r);
+            case '&&':  return $this->evaluate($l) &&  $this->evaluate($r);
+            case '||':  return $this->evaluate($l) ||  $this->evaluate($r);
+            case '??':  return $this->evaluate($l) ??  $this->evaluate($r);
+            case '.':   return $this->evaluate($l) .   $this->evaluate($r);
+            case '/':   return $this->evaluate($l) /   $this->evaluate($r);
+            case '==':  return $this->evaluate($l) ==  $this->evaluate($r);
+            case '>':   return $this->evaluate($l) >   $this->evaluate($r);
+            case '>=':  return $this->evaluate($l) >=  $this->evaluate($r);
+            case '===': return $this->evaluate($l) === $this->evaluate($r);
+            case 'and': return $this->evaluate($l) and $this->evaluate($r);
+            case 'or':  return $this->evaluate($l) or  $this->evaluate($r);
+            case 'xor': return $this->evaluate($l) xor $this->evaluate($r);
+            case '-':   return $this->evaluate($l) -   $this->evaluate($r);
+            case '%':   return $this->evaluate($l) %   $this->evaluate($r);
+            case '*':   return $this->evaluate($l) *   $this->evaluate($r);
+            case '!=':  return $this->evaluate($l) !=  $this->evaluate($r);
+            case '!==': return $this->evaluate($l) !== $this->evaluate($r);
+            case '+':   return $this->evaluate($l) +   $this->evaluate($r);
+            case '**':  return $this->evaluate($l) **  $this->evaluate($r);
+            case '<<':  return $this->evaluate($l) <<  $this->evaluate($r);
+            case '>>':  return $this->evaluate($l) >>  $this->evaluate($r);
+            case '<':   return $this->evaluate($l) <   $this->evaluate($r);
+            case '<=':  return $this->evaluate($l) <=  $this->evaluate($r);
+            case '<=>': return $this->evaluate($l) <=> $this->evaluate($r);
+        }
+
+        throw new \Exception('Should not happen');
+    }
+
+    private function evaluateConstFetch(Expr\ConstFetch $expr) {
+        $name = $expr->name->toLowerString();
+        switch ($name) {
+            case 'null': return null;
+            case 'false': return false;
+            case 'true': return true;
+        }
+
+        return ($this->fallbackEvaluator)($expr);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Error.php

@@ -0,0 +1,180 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+class Error extends \RuntimeException
+{
+    protected $rawMessage;
+    protected $attributes;
+
+    /**
+     * Creates an Exception signifying a parse error.
+     *
+     * @param string    $message    Error message
+     * @param array|int $attributes Attributes of node/token where error occurred
+     *                              (or start line of error -- deprecated)
+     */
+    public function __construct(string $message, $attributes = []) {
+        $this->rawMessage = $message;
+        if (is_array($attributes)) {
+            $this->attributes = $attributes;
+        } else {
+            $this->attributes = ['startLine' => $attributes];
+        }
+        $this->updateMessage();
+    }
+
+    /**
+     * Gets the error message
+     *
+     * @return string Error message
+     */
+    public function getRawMessage() : string {
+        return $this->rawMessage;
+    }
+
+    /**
+     * Gets the line the error starts in.
+     *
+     * @return int Error start line
+     */
+    public function getStartLine() : int {
+        return $this->attributes['startLine'] ?? -1;
+    }
+
+    /**
+     * Gets the line the error ends in.
+     *
+     * @return int Error end line
+     */
+    public function getEndLine() : int {
+        return $this->attributes['endLine'] ?? -1;
+    }
+
+    /**
+     * Gets the attributes of the node/token the error occurred at.
+     *
+     * @return array
+     */
+    public function getAttributes() : array {
+        return $this->attributes;
+    }
+
+    /**
+     * Sets the attributes of the node/token the error occurred at.
+     *
+     * @param array $attributes
+     */
+    public function setAttributes(array $attributes) {
+        $this->attributes = $attributes;
+        $this->updateMessage();
+    }
+
+    /**
+     * Sets the line of the PHP file the error occurred in.
+     *
+     * @param string $message Error message
+     */
+    public function setRawMessage(string $message) {
+        $this->rawMessage = $message;
+        $this->updateMessage();
+    }
+
+    /**
+     * Sets the line the error starts in.
+     *
+     * @param int $line Error start line
+     */
+    public function setStartLine(int $line) {
+        $this->attributes['startLine'] = $line;
+        $this->updateMessage();
+    }
+
+    /**
+     * Returns whether the error has start and end column information.
+     *
+     * For column information enable the startFilePos and endFilePos in the lexer options.
+     *
+     * @return bool
+     */
+    public function hasColumnInfo() : bool {
+        return isset($this->attributes['startFilePos'], $this->attributes['endFilePos']);
+    }
+
+    /**
+     * Gets the start column (1-based) into the line where the error started.
+     *
+     * @param string $code Source code of the file
+     * @return int
+     */
+    public function getStartColumn(string $code) : int {
+        if (!$this->hasColumnInfo()) {
+            throw new \RuntimeException('Error does not have column information');
+        }
+
+        return $this->toColumn($code, $this->attributes['startFilePos']);
+    }
+
+    /**
+     * Gets the end column (1-based) into the line where the error ended.
+     *
+     * @param string $code Source code of the file
+     * @return int
+     */
+    public function getEndColumn(string $code) : int {
+        if (!$this->hasColumnInfo()) {
+            throw new \RuntimeException('Error does not have column information');
+        }
+
+        return $this->toColumn($code, $this->attributes['endFilePos']);
+    }
+
+    /**
+     * Formats message including line and column information.
+     *
+     * @param string $code Source code associated with the error, for calculation of the columns
+     *
+     * @return string Formatted message
+     */
+    public function getMessageWithColumnInfo(string $code) : string {
+        return sprintf(
+            '%s from %d:%d to %d:%d', $this->getRawMessage(),
+            $this->getStartLine(), $this->getStartColumn($code),
+            $this->getEndLine(), $this->getEndColumn($code)
+        );
+    }
+
+    /**
+     * Converts a file offset into a column.
+     *
+     * @param string $code Source code that $pos indexes into
+     * @param int    $pos  0-based position in $code
+     *
+     * @return int 1-based column (relative to start of line)
+     */
+    private function toColumn(string $code, int $pos) : int {
+        if ($pos > strlen($code)) {
+            throw new \RuntimeException('Invalid position information');
+        }
+
+        $lineStartPos = strrpos($code, "\n", $pos - strlen($code));
+        if (false === $lineStartPos) {
+            $lineStartPos = -1;
+        }
+
+        return $pos - $lineStartPos;
+    }
+
+    /**
+     * Updates the exception message after a change to rawMessage or rawLine.
+     */
+    protected function updateMessage() {
+        $this->message = $this->rawMessage;
+
+        if (-1 === $this->getStartLine()) {
+            $this->message .= ' on unknown line';
+        } else {
+            $this->message .= ' on line ' . $this->getStartLine();
+        }
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/ErrorHandler.php

@@ -0,0 +1,13 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+interface ErrorHandler
+{
+    /**
+     * Handle an error generated during lexing, parsing or some other operation.
+     *
+     * @param Error $error The error that needs to be handled
+     */
+    public function handleError(Error $error);
+}

vendor/nikic/php-parser/lib/PhpParser/ErrorHandler/Collecting.php

@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\ErrorHandler;
+
+use PhpParser\Error;
+use PhpParser\ErrorHandler;
+
+/**
+ * Error handler that collects all errors into an array.
+ *
+ * This allows graceful handling of errors.
+ */
+class Collecting implements ErrorHandler
+{
+    /** @var Error[] Collected errors */
+    private $errors = [];
+
+    public function handleError(Error $error) {
+        $this->errors[] = $error;
+    }
+
+    /**
+     * Get collected errors.
+     *
+     * @return Error[]
+     */
+    public function getErrors() : array {
+        return $this->errors;
+    }
+
+    /**
+     * Check whether there are any errors.
+     *
+     * @return bool
+     */
+    public function hasErrors() : bool {
+        return !empty($this->errors);
+    }
+
+    /**
+     * Reset/clear collected errors.
+     */
+    public function clearErrors() {
+        $this->errors = [];
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/ErrorHandler/Throwing.php

@@ -0,0 +1,18 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\ErrorHandler;
+
+use PhpParser\Error;
+use PhpParser\ErrorHandler;
+
+/**
+ * Error handler that handles all errors by throwing them.
+ *
+ * This is the default strategy used by all components.
+ */
+class Throwing implements ErrorHandler
+{
+    public function handleError(Error $error) {
+        throw $error;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Internal/DiffElem.php

@@ -0,0 +1,27 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+/**
+ * @internal
+ */
+class DiffElem
+{
+    const TYPE_KEEP = 0;
+    const TYPE_REMOVE = 1;
+    const TYPE_ADD = 2;
+    const TYPE_REPLACE = 3;
+
+    /** @var int One of the TYPE_* constants */
+    public $type;
+    /** @var mixed Is null for add operations */
+    public $old;
+    /** @var mixed Is null for remove operations */
+    public $new;
+
+    public function __construct(int $type, $old, $new) {
+        $this->type = $type;
+        $this->old = $old;
+        $this->new = $new;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Internal/Differ.php

@@ -0,0 +1,164 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+/**
+ * Implements the Myers diff algorithm.
+ *
+ * Myers, Eugene W. "An O (ND) difference algorithm and its variations."
+ * Algorithmica 1.1 (1986): 251-266.
+ *
+ * @internal
+ */
+class Differ
+{
+    private $isEqual;
+
+    /**
+     * Create differ over the given equality relation.
+     *
+     * @param callable $isEqual Equality relation with signature function($a, $b) : bool
+     */
+    public function __construct(callable $isEqual) {
+        $this->isEqual = $isEqual;
+    }
+
+    /**
+     * Calculate diff (edit script) from $old to $new.
+     *
+     * @param array $old Original array
+     * @param array $new New array
+     *
+     * @return DiffElem[] Diff (edit script)
+     */
+    public function diff(array $old, array $new) {
+        list($trace, $x, $y) = $this->calculateTrace($old, $new);
+        return $this->extractDiff($trace, $x, $y, $old, $new);
+    }
+
+    /**
+     * Calculate diff, including "replace" operations.
+     *
+     * If a sequence of remove operations is followed by the same number of add operations, these
+     * will be coalesced into replace operations.
+     *
+     * @param array $old Original array
+     * @param array $new New array
+     *
+     * @return DiffElem[] Diff (edit script), including replace operations
+     */
+    public function diffWithReplacements(array $old, array $new) {
+        return $this->coalesceReplacements($this->diff($old, $new));
+    }
+
+    private function calculateTrace(array $a, array $b) {
+        $n = \count($a);
+        $m = \count($b);
+        $max = $n + $m;
+        $v = [1 => 0];
+        $trace = [];
+        for ($d = 0; $d <= $max; $d++) {
+            $trace[] = $v;
+            for ($k = -$d; $k <= $d; $k += 2) {
+                if ($k === -$d || ($k !== $d && $v[$k-1] < $v[$k+1])) {
+                    $x = $v[$k+1];
+                } else {
+                    $x = $v[$k-1] + 1;
+                }
+
+                $y = $x - $k;
+                while ($x < $n && $y < $m && ($this->isEqual)($a[$x], $b[$y])) {
+                    $x++;
+                    $y++;
+                }
+
+                $v[$k] = $x;
+                if ($x >= $n && $y >= $m) {
+                    return [$trace, $x, $y];
+                }
+            }
+        }
+        throw new \Exception('Should not happen');
+    }
+
+    private function extractDiff(array $trace, int $x, int $y, array $a, array $b) {
+        $result = [];
+        for ($d = \count($trace) - 1; $d >= 0; $d--) {
+            $v = $trace[$d];
+            $k = $x - $y;
+
+            if ($k === -$d || ($k !== $d && $v[$k-1] < $v[$k+1])) {
+                $prevK = $k + 1;
+            } else {
+                $prevK = $k - 1;
+            }
+
+            $prevX = $v[$prevK];
+            $prevY = $prevX - $prevK;
+
+            while ($x > $prevX && $y > $prevY) {
+                $result[] = new DiffElem(DiffElem::TYPE_KEEP, $a[$x-1], $b[$y-1]);
+                $x--;
+                $y--;
+            }
+
+            if ($d === 0) {
+                break;
+            }
+
+            while ($x > $prevX) {
+                $result[] = new DiffElem(DiffElem::TYPE_REMOVE, $a[$x-1], null);
+                $x--;
+            }
+
+            while ($y > $prevY) {
+                $result[] = new DiffElem(DiffElem::TYPE_ADD, null, $b[$y-1]);
+                $y--;
+            }
+        }
+        return array_reverse($result);
+    }
+
+    /**
+     * Coalesce equal-length sequences of remove+add into a replace operation.
+     *
+     * @param DiffElem[] $diff
+     * @return DiffElem[]
+     */
+    private function coalesceReplacements(array $diff) {
+        $newDiff = [];
+        $c = \count($diff);
+        for ($i = 0; $i < $c; $i++) {
+            $diffType = $diff[$i]->type;
+            if ($diffType !== DiffElem::TYPE_REMOVE) {
+                $newDiff[] = $diff[$i];
+                continue;
+            }
+
+            $j = $i;
+            while ($j < $c && $diff[$j]->type === DiffElem::TYPE_REMOVE) {
+                $j++;
+            }
+
+            $k = $j;
+            while ($k < $c && $diff[$k]->type === DiffElem::TYPE_ADD) {
+                $k++;
+            }
+
+            if ($j - $i === $k - $j) {
+                $len = $j - $i;
+                for ($n = 0; $n < $len; $n++) {
+                    $newDiff[] = new DiffElem(
+                        DiffElem::TYPE_REPLACE, $diff[$i + $n]->old, $diff[$j + $n]->new
+                    );
+                }
+            } else {
+                for (; $i < $k; $i++) {
+                    $newDiff[] = $diff[$i];
+                }
+            }
+            $i = $k - 1;
+        }
+        return $newDiff;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Internal/PrintableNewAnonClassNode.php

@@ -0,0 +1,61 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+
+/**
+ * This node is used internally by the format-preserving pretty printer to print anonymous classes.
+ *
+ * The normal anonymous class structure violates assumptions about the order of token offsets.
+ * Namely, the constructor arguments are part of the Expr\New_ node and follow the class node, even
+ * though they are actually interleaved with them. This special node type is used temporarily to
+ * restore a sane token offset order.
+ *
+ * @internal
+ */
+class PrintableNewAnonClassNode extends Expr
+{
+    /** @var Node\AttributeGroup[] PHP attribute groups */
+    public $attrGroups;
+    /** @var Node\Arg[] Arguments */
+    public $args;
+    /** @var null|Node\Name Name of extended class */
+    public $extends;
+    /** @var Node\Name[] Names of implemented interfaces */
+    public $implements;
+    /** @var Node\Stmt[] Statements */
+    public $stmts;
+
+    public function __construct(
+        array $attrGroups, array $args, Node\Name $extends = null, array $implements,
+        array $stmts, array $attributes
+    ) {
+        parent::__construct($attributes);
+        $this->attrGroups = $attrGroups;
+        $this->args = $args;
+        $this->extends = $extends;
+        $this->implements = $implements;
+        $this->stmts = $stmts;
+    }
+
+    public static function fromNewNode(Expr\New_ $newNode) {
+        $class = $newNode->class;
+        assert($class instanceof Node\Stmt\Class_);
+        // We don't assert that $class->name is null here, to allow consumers to assign unique names
+        // to anonymous classes for their own purposes. We simplify ignore the name here.
+        return new self(
+            $class->attrGroups, $newNode->args, $class->extends, $class->implements,
+            $class->stmts, $newNode->getAttributes()
+        );
+    }
+
+    public function getType() : string {
+        return 'Expr_PrintableNewAnonClass';
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'args', 'extends', 'implements', 'stmts'];
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Internal/TokenStream.php

@@ -0,0 +1,281 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+/**
+ * Provides operations on token streams, for use by pretty printer.
+ *
+ * @internal
+ */
+class TokenStream
+{
+    /** @var array Tokens (in token_get_all format) */
+    private $tokens;
+    /** @var int[] Map from position to indentation */
+    private $indentMap;
+
+    /**
+     * Create token stream instance.
+     *
+     * @param array $tokens Tokens in token_get_all() format
+     */
+    public function __construct(array $tokens) {
+        $this->tokens = $tokens;
+        $this->indentMap = $this->calcIndentMap();
+    }
+
+    /**
+     * Whether the given position is immediately surrounded by parenthesis.
+     *
+     * @param int $startPos Start position
+     * @param int $endPos   End position
+     *
+     * @return bool
+     */
+    public function haveParens(int $startPos, int $endPos) : bool {
+        return $this->haveTokenImmediatelyBefore($startPos, '(')
+            && $this->haveTokenImmediatelyAfter($endPos, ')');
+    }
+
+    /**
+     * Whether the given position is immediately surrounded by braces.
+     *
+     * @param int $startPos Start position
+     * @param int $endPos   End position
+     *
+     * @return bool
+     */
+    public function haveBraces(int $startPos, int $endPos) : bool {
+        return ($this->haveTokenImmediatelyBefore($startPos, '{')
+                || $this->haveTokenImmediatelyBefore($startPos, T_CURLY_OPEN))
+            && $this->haveTokenImmediatelyAfter($endPos, '}');
+    }
+
+    /**
+     * Check whether the position is directly preceded by a certain token type.
+     *
+     * During this check whitespace and comments are skipped.
+     *
+     * @param int        $pos               Position before which the token should occur
+     * @param int|string $expectedTokenType Token to check for
+     *
+     * @return bool Whether the expected token was found
+     */
+    public function haveTokenImmediatelyBefore(int $pos, $expectedTokenType) : bool {
+        $tokens = $this->tokens;
+        $pos--;
+        for (; $pos >= 0; $pos--) {
+            $tokenType = $tokens[$pos][0];
+            if ($tokenType === $expectedTokenType) {
+                return true;
+            }
+            if ($tokenType !== \T_WHITESPACE
+                && $tokenType !== \T_COMMENT && $tokenType !== \T_DOC_COMMENT) {
+                break;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Check whether the position is directly followed by a certain token type.
+     *
+     * During this check whitespace and comments are skipped.
+     *
+     * @param int        $pos               Position after which the token should occur
+     * @param int|string $expectedTokenType Token to check for
+     *
+     * @return bool Whether the expected token was found
+     */
+    public function haveTokenImmediatelyAfter(int $pos, $expectedTokenType) : bool {
+        $tokens = $this->tokens;
+        $pos++;
+        for (; $pos < \count($tokens); $pos++) {
+            $tokenType = $tokens[$pos][0];
+            if ($tokenType === $expectedTokenType) {
+                return true;
+            }
+            if ($tokenType !== \T_WHITESPACE
+                && $tokenType !== \T_COMMENT && $tokenType !== \T_DOC_COMMENT) {
+                break;
+            }
+        }
+        return false;
+    }
+
+    public function skipLeft(int $pos, $skipTokenType) {
+        $tokens = $this->tokens;
+
+        $pos = $this->skipLeftWhitespace($pos);
+        if ($skipTokenType === \T_WHITESPACE) {
+            return $pos;
+        }
+
+        if ($tokens[$pos][0] !== $skipTokenType) {
+            // Shouldn't happen. The skip token MUST be there
+            throw new \Exception('Encountered unexpected token');
+        }
+        $pos--;
+
+        return $this->skipLeftWhitespace($pos);
+    }
+
+    public function skipRight(int $pos, $skipTokenType) {
+        $tokens = $this->tokens;
+
+        $pos = $this->skipRightWhitespace($pos);
+        if ($skipTokenType === \T_WHITESPACE) {
+            return $pos;
+        }
+
+        if ($tokens[$pos][0] !== $skipTokenType) {
+            // Shouldn't happen. The skip token MUST be there
+            throw new \Exception('Encountered unexpected token');
+        }
+        $pos++;
+
+        return $this->skipRightWhitespace($pos);
+    }
+
+    /**
+     * Return first non-whitespace token position smaller or equal to passed position.
+     *
+     * @param int $pos Token position
+     * @return int Non-whitespace token position
+     */
+    public function skipLeftWhitespace(int $pos) {
+        $tokens = $this->tokens;
+        for (; $pos >= 0; $pos--) {
+            $type = $tokens[$pos][0];
+            if ($type !== \T_WHITESPACE && $type !== \T_COMMENT && $type !== \T_DOC_COMMENT) {
+                break;
+            }
+        }
+        return $pos;
+    }
+
+    /**
+     * Return first non-whitespace position greater or equal to passed position.
+     *
+     * @param int $pos Token position
+     * @return int Non-whitespace token position
+     */
+    public function skipRightWhitespace(int $pos) {
+        $tokens = $this->tokens;
+        for ($count = \count($tokens); $pos < $count; $pos++) {
+            $type = $tokens[$pos][0];
+            if ($type !== \T_WHITESPACE && $type !== \T_COMMENT && $type !== \T_DOC_COMMENT) {
+                break;
+            }
+        }
+        return $pos;
+    }
+
+    public function findRight(int $pos, $findTokenType) {
+        $tokens = $this->tokens;
+        for ($count = \count($tokens); $pos < $count; $pos++) {
+            $type = $tokens[$pos][0];
+            if ($type === $findTokenType) {
+                return $pos;
+            }
+        }
+        return -1;
+    }
+
+    /**
+     * Whether the given position range contains a certain token type.
+     *
+     * @param int $startPos Starting position (inclusive)
+     * @param int $endPos Ending position (exclusive)
+     * @param int|string $tokenType Token type to look for
+     * @return bool Whether the token occurs in the given range
+     */
+    public function haveTokenInRange(int $startPos, int $endPos, $tokenType) {
+        $tokens = $this->tokens;
+        for ($pos = $startPos; $pos < $endPos; $pos++) {
+            if ($tokens[$pos][0] === $tokenType) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public function haveBracesInRange(int $startPos, int $endPos) {
+        return $this->haveTokenInRange($startPos, $endPos, '{')
+            || $this->haveTokenInRange($startPos, $endPos, T_CURLY_OPEN)
+            || $this->haveTokenInRange($startPos, $endPos, '}');
+    }
+
+    /**
+     * Get indentation before token position.
+     *
+     * @param int $pos Token position
+     *
+     * @return int Indentation depth (in spaces)
+     */
+    public function getIndentationBefore(int $pos) : int {
+        return $this->indentMap[$pos];
+    }
+
+    /**
+     * Get the code corresponding to a token offset range, optionally adjusted for indentation.
+     *
+     * @param int $from   Token start position (inclusive)
+     * @param int $to     Token end position (exclusive)
+     * @param int $indent By how much the code should be indented (can be negative as well)
+     *
+     * @return string Code corresponding to token range, adjusted for indentation
+     */
+    public function getTokenCode(int $from, int $to, int $indent) : string {
+        $tokens = $this->tokens;
+        $result = '';
+        for ($pos = $from; $pos < $to; $pos++) {
+            $token = $tokens[$pos];
+            if (\is_array($token)) {
+                $type = $token[0];
+                $content = $token[1];
+                if ($type === \T_CONSTANT_ENCAPSED_STRING || $type === \T_ENCAPSED_AND_WHITESPACE) {
+                    $result .= $content;
+                } else {
+                    // TODO Handle non-space indentation
+                    if ($indent < 0) {
+                        $result .= str_replace("\n" . str_repeat(" ", -$indent), "\n", $content);
+                    } elseif ($indent > 0) {
+                        $result .= str_replace("\n", "\n" . str_repeat(" ", $indent), $content);
+                    } else {
+                        $result .= $content;
+                    }
+                }
+            } else {
+                $result .= $token;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Precalculate the indentation at every token position.
+     *
+     * @return int[] Token position to indentation map
+     */
+    private function calcIndentMap() {
+        $indentMap = [];
+        $indent = 0;
+        foreach ($this->tokens as $token) {
+            $indentMap[] = $indent;
+
+            if ($token[0] === \T_WHITESPACE) {
+                $content = $token[1];
+                $newlinePos = \strrpos($content, "\n");
+                if (false !== $newlinePos) {
+                    $indent = \strlen($content) - $newlinePos - 1;
+                }
+            }
+        }
+
+        // Add a sentinel for one past end of the file
+        $indentMap[] = $indent;
+
+        return $indentMap;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/JsonDecoder.php

@@ -0,0 +1,103 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+class JsonDecoder
+{
+    /** @var \ReflectionClass[] Node type to reflection class map */
+    private $reflectionClassCache;
+
+    public function decode(string $json) {
+        $value = json_decode($json, true);
+        if (json_last_error()) {
+            throw new \RuntimeException('JSON decoding error: ' . json_last_error_msg());
+        }
+
+        return $this->decodeRecursive($value);
+    }
+
+    private function decodeRecursive($value) {
+        if (\is_array($value)) {
+            if (isset($value['nodeType'])) {
+                if ($value['nodeType'] === 'Comment' || $value['nodeType'] === 'Comment_Doc') {
+                    return $this->decodeComment($value);
+                }
+                return $this->decodeNode($value);
+            }
+            return $this->decodeArray($value);
+        }
+        return $value;
+    }
+
+    private function decodeArray(array $array) : array {
+        $decodedArray = [];
+        foreach ($array as $key => $value) {
+            $decodedArray[$key] = $this->decodeRecursive($value);
+        }
+        return $decodedArray;
+    }
+
+    private function decodeNode(array $value) : Node {
+        $nodeType = $value['nodeType'];
+        if (!\is_string($nodeType)) {
+            throw new \RuntimeException('Node type must be a string');
+        }
+
+        $reflectionClass = $this->reflectionClassFromNodeType($nodeType);
+        /** @var Node $node */
+        $node = $reflectionClass->newInstanceWithoutConstructor();
+
+        if (isset($value['attributes'])) {
+            if (!\is_array($value['attributes'])) {
+                throw new \RuntimeException('Attributes must be an array');
+            }
+
+            $node->setAttributes($this->decodeArray($value['attributes']));
+        }
+
+        foreach ($value as $name => $subNode) {
+            if ($name === 'nodeType' || $name === 'attributes') {
+                continue;
+            }
+
+            $node->$name = $this->decodeRecursive($subNode);
+        }
+
+        return $node;
+    }
+
+    private function decodeComment(array $value) : Comment {
+        $className = $value['nodeType'] === 'Comment' ? Comment::class : Comment\Doc::class;
+        if (!isset($value['text'])) {
+            throw new \RuntimeException('Comment must have text');
+        }
+
+        return new $className(
+            $value['text'],
+            $value['line'] ?? -1, $value['filePos'] ?? -1, $value['tokenPos'] ?? -1,
+            $value['endLine'] ?? -1, $value['endFilePos'] ?? -1, $value['endTokenPos'] ?? -1
+        );
+    }
+
+    private function reflectionClassFromNodeType(string $nodeType) : \ReflectionClass {
+        if (!isset($this->reflectionClassCache[$nodeType])) {
+            $className = $this->classNameFromNodeType($nodeType);
+            $this->reflectionClassCache[$nodeType] = new \ReflectionClass($className);
+        }
+        return $this->reflectionClassCache[$nodeType];
+    }
+
+    private function classNameFromNodeType(string $nodeType) : string {
+        $className = 'PhpParser\\Node\\' . strtr($nodeType, '_', '\\');
+        if (class_exists($className)) {
+            return $className;
+        }
+
+        $className .= '_';
+        if (class_exists($className)) {
+            return $className;
+        }
+
+        throw new \RuntimeException("Unknown node type \"$nodeType\"");
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer.php

@@ -0,0 +1,560 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+use PhpParser\Parser\Tokens;
+
+class Lexer
+{
+    protected $code;
+    protected $tokens;
+    protected $pos;
+    protected $line;
+    protected $filePos;
+    protected $prevCloseTagHasNewline;
+
+    protected $tokenMap;
+    protected $dropTokens;
+    protected $identifierTokens;
+
+    private $attributeStartLineUsed;
+    private $attributeEndLineUsed;
+    private $attributeStartTokenPosUsed;
+    private $attributeEndTokenPosUsed;
+    private $attributeStartFilePosUsed;
+    private $attributeEndFilePosUsed;
+    private $attributeCommentsUsed;
+
+    /**
+     * Creates a Lexer.
+     *
+     * @param array $options Options array. Currently only the 'usedAttributes' option is supported,
+     *                       which is an array of attributes to add to the AST nodes. Possible
+     *                       attributes are: 'comments', 'startLine', 'endLine', 'startTokenPos',
+     *                       'endTokenPos', 'startFilePos', 'endFilePos'. The option defaults to the
+     *                       first three. For more info see getNextToken() docs.
+     */
+    public function __construct(array $options = []) {
+        // Create Map from internal tokens to PhpParser tokens.
+        $this->defineCompatibilityTokens();
+        $this->tokenMap = $this->createTokenMap();
+        $this->identifierTokens = $this->createIdentifierTokenMap();
+
+        // map of tokens to drop while lexing (the map is only used for isset lookup,
+        // that's why the value is simply set to 1; the value is never actually used.)
+        $this->dropTokens = array_fill_keys(
+            [\T_WHITESPACE, \T_OPEN_TAG, \T_COMMENT, \T_DOC_COMMENT, \T_BAD_CHARACTER], 1
+        );
+
+        $defaultAttributes = ['comments', 'startLine', 'endLine'];
+        $usedAttributes = array_fill_keys($options['usedAttributes'] ?? $defaultAttributes, true);
+
+        // Create individual boolean properties to make these checks faster.
+        $this->attributeStartLineUsed = isset($usedAttributes['startLine']);
+        $this->attributeEndLineUsed = isset($usedAttributes['endLine']);
+        $this->attributeStartTokenPosUsed = isset($usedAttributes['startTokenPos']);
+        $this->attributeEndTokenPosUsed = isset($usedAttributes['endTokenPos']);
+        $this->attributeStartFilePosUsed = isset($usedAttributes['startFilePos']);
+        $this->attributeEndFilePosUsed = isset($usedAttributes['endFilePos']);
+        $this->attributeCommentsUsed = isset($usedAttributes['comments']);
+    }
+
+    /**
+     * Initializes the lexer for lexing the provided source code.
+     *
+     * This function does not throw if lexing errors occur. Instead, errors may be retrieved using
+     * the getErrors() method.
+     *
+     * @param string $code The source code to lex
+     * @param ErrorHandler|null $errorHandler Error handler to use for lexing errors. Defaults to
+     *                                        ErrorHandler\Throwing
+     */
+    public function startLexing(string $code, ErrorHandler $errorHandler = null) {
+        if (null === $errorHandler) {
+            $errorHandler = new ErrorHandler\Throwing();
+        }
+
+        $this->code = $code; // keep the code around for __halt_compiler() handling
+        $this->pos  = -1;
+        $this->line =  1;
+        $this->filePos = 0;
+
+        // If inline HTML occurs without preceding code, treat it as if it had a leading newline.
+        // This ensures proper composability, because having a newline is the "safe" assumption.
+        $this->prevCloseTagHasNewline = true;
+
+        $scream = ini_set('xdebug.scream', '0');
+
+        $this->tokens = @token_get_all($code);
+        $this->postprocessTokens($errorHandler);
+
+        if (false !== $scream) {
+            ini_set('xdebug.scream', $scream);
+        }
+    }
+
+    private function handleInvalidCharacterRange($start, $end, $line, ErrorHandler $errorHandler) {
+        $tokens = [];
+        for ($i = $start; $i < $end; $i++) {
+            $chr = $this->code[$i];
+            if ($chr === "\0") {
+                // PHP cuts error message after null byte, so need special case
+                $errorMsg = 'Unexpected null byte';
+            } else {
+                $errorMsg = sprintf(
+                    'Unexpected character "%s" (ASCII %d)', $chr, ord($chr)
+                );
+            }
+
+            $tokens[] = [\T_BAD_CHARACTER, $chr, $line];
+            $errorHandler->handleError(new Error($errorMsg, [
+                'startLine' => $line,
+                'endLine' => $line,
+                'startFilePos' => $i,
+                'endFilePos' => $i,
+            ]));
+        }
+        return $tokens;
+    }
+
+    /**
+     * Check whether comment token is unterminated.
+     *
+     * @return bool
+     */
+    private function isUnterminatedComment($token) : bool {
+        return ($token[0] === \T_COMMENT || $token[0] === \T_DOC_COMMENT)
+            && substr($token[1], 0, 2) === '/*'
+            && substr($token[1], -2) !== '*/';
+    }
+
+    protected function postprocessTokens(ErrorHandler $errorHandler) {
+        // PHP's error handling for token_get_all() is rather bad, so if we want detailed
+        // error information we need to compute it ourselves. Invalid character errors are
+        // detected by finding "gaps" in the token array. Unterminated comments are detected
+        // by checking if a trailing comment has a "*/" at the end.
+        //
+        // Additionally, we perform a number of canonicalizations here:
+        //  * Use the PHP 8.0 comment format, which does not include trailing whitespace anymore.
+        //  * Use PHP 8.0 T_NAME_* tokens.
+        //  * Use PHP 8.1 T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG and
+        //    T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG tokens used to disambiguate intersection types.
+
+        $filePos = 0;
+        $line = 1;
+        $numTokens = \count($this->tokens);
+        for ($i = 0; $i < $numTokens; $i++) {
+            $token = $this->tokens[$i];
+
+            // Since PHP 7.4 invalid characters are represented by a T_BAD_CHARACTER token.
+            // In this case we only need to emit an error.
+            if ($token[0] === \T_BAD_CHARACTER) {
+                $this->handleInvalidCharacterRange($filePos, $filePos + 1, $line, $errorHandler);
+            }
+
+            if ($token[0] === \T_COMMENT && substr($token[1], 0, 2) !== '/*'
+                    && preg_match('/(\r\n|\n|\r)$/D', $token[1], $matches)) {
+                $trailingNewline = $matches[0];
+                $token[1] = substr($token[1], 0, -strlen($trailingNewline));
+                $this->tokens[$i] = $token;
+                if (isset($this->tokens[$i + 1]) && $this->tokens[$i + 1][0] === \T_WHITESPACE) {
+                    // Move trailing newline into following T_WHITESPACE token, if it already exists.
+                    $this->tokens[$i + 1][1] = $trailingNewline . $this->tokens[$i + 1][1];
+                    $this->tokens[$i + 1][2]--;
+                } else {
+                    // Otherwise, we need to create a new T_WHITESPACE token.
+                    array_splice($this->tokens, $i + 1, 0, [
+                        [\T_WHITESPACE, $trailingNewline, $line],
+                    ]);
+                    $numTokens++;
+                }
+            }
+
+            // Emulate PHP 8 T_NAME_* tokens, by combining sequences of T_NS_SEPARATOR and T_STRING
+            // into a single token.
+            if (\is_array($token)
+                    && ($token[0] === \T_NS_SEPARATOR || isset($this->identifierTokens[$token[0]]))) {
+                $lastWasSeparator = $token[0] === \T_NS_SEPARATOR;
+                $text = $token[1];
+                for ($j = $i + 1; isset($this->tokens[$j]); $j++) {
+                    if ($lastWasSeparator) {
+                        if (!isset($this->identifierTokens[$this->tokens[$j][0]])) {
+                            break;
+                        }
+                        $lastWasSeparator = false;
+                    } else {
+                        if ($this->tokens[$j][0] !== \T_NS_SEPARATOR) {
+                            break;
+                        }
+                        $lastWasSeparator = true;
+                    }
+                    $text .= $this->tokens[$j][1];
+                }
+                if ($lastWasSeparator) {
+                    // Trailing separator is not part of the name.
+                    $j--;
+                    $text = substr($text, 0, -1);
+                }
+                if ($j > $i + 1) {
+                    if ($token[0] === \T_NS_SEPARATOR) {
+                        $type = \T_NAME_FULLY_QUALIFIED;
+                    } else if ($token[0] === \T_NAMESPACE) {
+                        $type = \T_NAME_RELATIVE;
+                    } else {
+                        $type = \T_NAME_QUALIFIED;
+                    }
+                    $token = [$type, $text, $line];
+                    array_splice($this->tokens, $i, $j - $i, [$token]);
+                    $numTokens -= $j - $i - 1;
+                }
+            }
+
+            if ($token === '&') {
+                $next = $i + 1;
+                while (isset($this->tokens[$next]) && $this->tokens[$next][0] === \T_WHITESPACE) {
+                    $next++;
+                }
+                $followedByVarOrVarArg = isset($this->tokens[$next]) &&
+                    ($this->tokens[$next][0] === \T_VARIABLE || $this->tokens[$next][0] === \T_ELLIPSIS);
+                $this->tokens[$i] = $token = [
+                    $followedByVarOrVarArg
+                        ? \T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG
+                        : \T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG,
+                    '&',
+                    $line,
+                ];
+            }
+
+            $tokenValue = \is_string($token) ? $token : $token[1];
+            $tokenLen = \strlen($tokenValue);
+
+            if (substr($this->code, $filePos, $tokenLen) !== $tokenValue) {
+                // Something is missing, must be an invalid character
+                $nextFilePos = strpos($this->code, $tokenValue, $filePos);
+                $badCharTokens = $this->handleInvalidCharacterRange(
+                    $filePos, $nextFilePos, $line, $errorHandler);
+                $filePos = (int) $nextFilePos;
+
+                array_splice($this->tokens, $i, 0, $badCharTokens);
+                $numTokens += \count($badCharTokens);
+                $i += \count($badCharTokens);
+            }
+
+            $filePos += $tokenLen;
+            $line += substr_count($tokenValue, "\n");
+        }
+
+        if ($filePos !== \strlen($this->code)) {
+            if (substr($this->code, $filePos, 2) === '/*') {
+                // Unlike PHP, HHVM will drop unterminated comments entirely
+                $comment = substr($this->code, $filePos);
+                $errorHandler->handleError(new Error('Unterminated comment', [
+                    'startLine' => $line,
+                    'endLine' => $line + substr_count($comment, "\n"),
+                    'startFilePos' => $filePos,
+                    'endFilePos' => $filePos + \strlen($comment),
+                ]));
+
+                // Emulate the PHP behavior
+                $isDocComment = isset($comment[3]) && $comment[3] === '*';
+                $this->tokens[] = [$isDocComment ? \T_DOC_COMMENT : \T_COMMENT, $comment, $line];
+            } else {
+                // Invalid characters at the end of the input
+                $badCharTokens = $this->handleInvalidCharacterRange(
+                    $filePos, \strlen($this->code), $line, $errorHandler);
+                $this->tokens = array_merge($this->tokens, $badCharTokens);
+            }
+            return;
+        }
+
+        if (count($this->tokens) > 0) {
+            // Check for unterminated comment
+            $lastToken = $this->tokens[count($this->tokens) - 1];
+            if ($this->isUnterminatedComment($lastToken)) {
+                $errorHandler->handleError(new Error('Unterminated comment', [
+                    'startLine' => $line - substr_count($lastToken[1], "\n"),
+                    'endLine' => $line,
+                    'startFilePos' => $filePos - \strlen($lastToken[1]),
+                    'endFilePos' => $filePos,
+                ]));
+            }
+        }
+    }
+
+    /**
+     * Fetches the next token.
+     *
+     * The available attributes are determined by the 'usedAttributes' option, which can
+     * be specified in the constructor. The following attributes are supported:
+     *
+     *  * 'comments'      => Array of PhpParser\Comment or PhpParser\Comment\Doc instances,
+     *                       representing all comments that occurred between the previous
+     *                       non-discarded token and the current one.
+     *  * 'startLine'     => Line in which the node starts.
+     *  * 'endLine'       => Line in which the node ends.
+     *  * 'startTokenPos' => Offset into the token array of the first token in the node.
+     *  * 'endTokenPos'   => Offset into the token array of the last token in the node.
+     *  * 'startFilePos'  => Offset into the code string of the first character that is part of the node.
+     *  * 'endFilePos'    => Offset into the code string of the last character that is part of the node.
+     *
+     * @param mixed $value           Variable to store token content in
+     * @param mixed $startAttributes Variable to store start attributes in
+     * @param mixed $endAttributes   Variable to store end attributes in
+     *
+     * @return int Token id
+     */
+    public function getNextToken(&$value = null, &$startAttributes = null, &$endAttributes = null) : int {
+        $startAttributes = [];
+        $endAttributes   = [];
+
+        while (1) {
+            if (isset($this->tokens[++$this->pos])) {
+                $token = $this->tokens[$this->pos];
+            } else {
+                // EOF token with ID 0
+                $token = "\0";
+            }
+
+            if ($this->attributeStartLineUsed) {
+                $startAttributes['startLine'] = $this->line;
+            }
+            if ($this->attributeStartTokenPosUsed) {
+                $startAttributes['startTokenPos'] = $this->pos;
+            }
+            if ($this->attributeStartFilePosUsed) {
+                $startAttributes['startFilePos'] = $this->filePos;
+            }
+
+            if (\is_string($token)) {
+                $value = $token;
+                if (isset($token[1])) {
+                    // bug in token_get_all
+                    $this->filePos += 2;
+                    $id = ord('"');
+                } else {
+                    $this->filePos += 1;
+                    $id = ord($token);
+                }
+            } elseif (!isset($this->dropTokens[$token[0]])) {
+                $value = $token[1];
+                $id = $this->tokenMap[$token[0]];
+                if (\T_CLOSE_TAG === $token[0]) {
+                    $this->prevCloseTagHasNewline = false !== strpos($token[1], "\n")
+                        || false !== strpos($token[1], "\r");
+                } elseif (\T_INLINE_HTML === $token[0]) {
+                    $startAttributes['hasLeadingNewline'] = $this->prevCloseTagHasNewline;
+                }
+
+                $this->line += substr_count($value, "\n");
+                $this->filePos += \strlen($value);
+            } else {
+                $origLine = $this->line;
+                $origFilePos = $this->filePos;
+                $this->line += substr_count($token[1], "\n");
+                $this->filePos += \strlen($token[1]);
+
+                if (\T_COMMENT === $token[0] || \T_DOC_COMMENT === $token[0]) {
+                    if ($this->attributeCommentsUsed) {
+                        $comment = \T_DOC_COMMENT === $token[0]
+                            ? new Comment\Doc($token[1],
+                                $origLine, $origFilePos, $this->pos,
+                                $this->line, $this->filePos - 1, $this->pos)
+                            : new Comment($token[1],
+                                $origLine, $origFilePos, $this->pos,
+                                $this->line, $this->filePos - 1, $this->pos);
+                        $startAttributes['comments'][] = $comment;
+                    }
+                }
+                continue;
+            }
+
+            if ($this->attributeEndLineUsed) {
+                $endAttributes['endLine'] = $this->line;
+            }
+            if ($this->attributeEndTokenPosUsed) {
+                $endAttributes['endTokenPos'] = $this->pos;
+            }
+            if ($this->attributeEndFilePosUsed) {
+                $endAttributes['endFilePos'] = $this->filePos - 1;
+            }
+
+            return $id;
+        }
+
+        throw new \RuntimeException('Reached end of lexer loop');
+    }
+
+    /**
+     * Returns the token array for current code.
+     *
+     * The token array is in the same format as provided by the
+     * token_get_all() function and does not discard tokens (i.e.
+     * whitespace and comments are included). The token position
+     * attributes are against this token array.
+     *
+     * @return array Array of tokens in token_get_all() format
+     */
+    public function getTokens() : array {
+        return $this->tokens;
+    }
+
+    /**
+     * Handles __halt_compiler() by returning the text after it.
+     *
+     * @return string Remaining text
+     */
+    public function handleHaltCompiler() : string {
+        // text after T_HALT_COMPILER, still including ();
+        $textAfter = substr($this->code, $this->filePos);
+
+        // ensure that it is followed by ();
+        // this simplifies the situation, by not allowing any comments
+        // in between of the tokens.
+        if (!preg_match('~^\s*\(\s*\)\s*(?:;|\?>\r?\n?)~', $textAfter, $matches)) {
+            throw new Error('__HALT_COMPILER must be followed by "();"');
+        }
+
+        // prevent the lexer from returning any further tokens
+        $this->pos = count($this->tokens);
+
+        // return with (); removed
+        return substr($textAfter, strlen($matches[0]));
+    }
+
+    private function defineCompatibilityTokens() {
+        static $compatTokensDefined = false;
+        if ($compatTokensDefined) {
+            return;
+        }
+
+        $compatTokens = [
+            // PHP 7.4
+            'T_BAD_CHARACTER',
+            'T_FN',
+            'T_COALESCE_EQUAL',
+            // PHP 8.0
+            'T_NAME_QUALIFIED',
+            'T_NAME_FULLY_QUALIFIED',
+            'T_NAME_RELATIVE',
+            'T_MATCH',
+            'T_NULLSAFE_OBJECT_OPERATOR',
+            'T_ATTRIBUTE',
+            // PHP 8.1
+            'T_ENUM',
+            'T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG',
+            'T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG',
+            'T_READONLY',
+        ];
+
+        // PHP-Parser might be used together with another library that also emulates some or all
+        // of these tokens. Perform a sanity-check that all already defined tokens have been
+        // assigned a unique ID.
+        $usedTokenIds = [];
+        foreach ($compatTokens as $token) {
+            if (\defined($token)) {
+                $tokenId = \constant($token);
+                $clashingToken = $usedTokenIds[$tokenId] ?? null;
+                if ($clashingToken !== null) {
+                    throw new \Error(sprintf(
+                        'Token %s has same ID as token %s, ' .
+                        'you may be using a library with broken token emulation',
+                        $token, $clashingToken
+                    ));
+                }
+                $usedTokenIds[$tokenId] = $token;
+            }
+        }
+
+        // Now define any tokens that have not yet been emulated. Try to assign IDs from -1
+        // downwards, but skip any IDs that may already be in use.
+        $newTokenId = -1;
+        foreach ($compatTokens as $token) {
+            if (!\defined($token)) {
+                while (isset($usedTokenIds[$newTokenId])) {
+                    $newTokenId--;
+                }
+                \define($token, $newTokenId);
+                $newTokenId--;
+            }
+        }
+
+        $compatTokensDefined = true;
+    }
+
+    /**
+     * Creates the token map.
+     *
+     * The token map maps the PHP internal token identifiers
+     * to the identifiers used by the Parser. Additionally it
+     * maps T_OPEN_TAG_WITH_ECHO to T_ECHO and T_CLOSE_TAG to ';'.
+     *
+     * @return array The token map
+     */
+    protected function createTokenMap() : array {
+        $tokenMap = [];
+
+        // 256 is the minimum possible token number, as everything below
+        // it is an ASCII value
+        for ($i = 256; $i < 1000; ++$i) {
+            if (\T_DOUBLE_COLON === $i) {
+                // T_DOUBLE_COLON is equivalent to T_PAAMAYIM_NEKUDOTAYIM
+                $tokenMap[$i] = Tokens::T_PAAMAYIM_NEKUDOTAYIM;
+            } elseif(\T_OPEN_TAG_WITH_ECHO === $i) {
+                // T_OPEN_TAG_WITH_ECHO with dropped T_OPEN_TAG results in T_ECHO
+                $tokenMap[$i] = Tokens::T_ECHO;
+            } elseif(\T_CLOSE_TAG === $i) {
+                // T_CLOSE_TAG is equivalent to ';'
+                $tokenMap[$i] = ord(';');
+            } elseif ('UNKNOWN' !== $name = token_name($i)) {
+                if ('T_HASHBANG' === $name) {
+                    // HHVM uses a special token for #! hashbang lines
+                    $tokenMap[$i] = Tokens::T_INLINE_HTML;
+                } elseif (defined($name = Tokens::class . '::' . $name)) {
+                    // Other tokens can be mapped directly
+                    $tokenMap[$i] = constant($name);
+                }
+            }
+        }
+
+        // HHVM uses a special token for numbers that overflow to double
+        if (defined('T_ONUMBER')) {
+            $tokenMap[\T_ONUMBER] = Tokens::T_DNUMBER;
+        }
+        // HHVM also has a separate token for the __COMPILER_HALT_OFFSET__ constant
+        if (defined('T_COMPILER_HALT_OFFSET')) {
+            $tokenMap[\T_COMPILER_HALT_OFFSET] = Tokens::T_STRING;
+        }
+
+        // Assign tokens for which we define compatibility constants, as token_name() does not know them.
+        $tokenMap[\T_FN] = Tokens::T_FN;
+        $tokenMap[\T_COALESCE_EQUAL] = Tokens::T_COALESCE_EQUAL;
+        $tokenMap[\T_NAME_QUALIFIED] = Tokens::T_NAME_QUALIFIED;
+        $tokenMap[\T_NAME_FULLY_QUALIFIED] = Tokens::T_NAME_FULLY_QUALIFIED;
+        $tokenMap[\T_NAME_RELATIVE] = Tokens::T_NAME_RELATIVE;
+        $tokenMap[\T_MATCH] = Tokens::T_MATCH;
+        $tokenMap[\T_NULLSAFE_OBJECT_OPERATOR] = Tokens::T_NULLSAFE_OBJECT_OPERATOR;
+        $tokenMap[\T_ATTRIBUTE] = Tokens::T_ATTRIBUTE;
+        $tokenMap[\T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG] = Tokens::T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG;
+        $tokenMap[\T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG] = Tokens::T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG;
+        $tokenMap[\T_ENUM] = Tokens::T_ENUM;
+        $tokenMap[\T_READONLY] = Tokens::T_READONLY;
+
+        return $tokenMap;
+    }
+
+    private function createIdentifierTokenMap(): array {
+        // Based on semi_reserved production.
+        return array_fill_keys([
+            \T_STRING,
+            \T_STATIC, \T_ABSTRACT, \T_FINAL, \T_PRIVATE, \T_PROTECTED, \T_PUBLIC, \T_READONLY,
+            \T_INCLUDE, \T_INCLUDE_ONCE, \T_EVAL, \T_REQUIRE, \T_REQUIRE_ONCE, \T_LOGICAL_OR, \T_LOGICAL_XOR, \T_LOGICAL_AND,
+            \T_INSTANCEOF, \T_NEW, \T_CLONE, \T_EXIT, \T_IF, \T_ELSEIF, \T_ELSE, \T_ENDIF, \T_ECHO, \T_DO, \T_WHILE,
+            \T_ENDWHILE, \T_FOR, \T_ENDFOR, \T_FOREACH, \T_ENDFOREACH, \T_DECLARE, \T_ENDDECLARE, \T_AS, \T_TRY, \T_CATCH,
+            \T_FINALLY, \T_THROW, \T_USE, \T_INSTEADOF, \T_GLOBAL, \T_VAR, \T_UNSET, \T_ISSET, \T_EMPTY, \T_CONTINUE, \T_GOTO,
+            \T_FUNCTION, \T_CONST, \T_RETURN, \T_PRINT, \T_YIELD, \T_LIST, \T_SWITCH, \T_ENDSWITCH, \T_CASE, \T_DEFAULT,
+            \T_BREAK, \T_ARRAY, \T_CALLABLE, \T_EXTENDS, \T_IMPLEMENTS, \T_NAMESPACE, \T_TRAIT, \T_INTERFACE, \T_CLASS,
+            \T_CLASS_C, \T_TRAIT_C, \T_FUNC_C, \T_METHOD_C, \T_LINE, \T_FILE, \T_DIR, \T_NS_C, \T_HALT_COMPILER, \T_FN,
+            \T_MATCH,
+        ], true);
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php

@@ -0,0 +1,248 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer;
+
+use PhpParser\Error;
+use PhpParser\ErrorHandler;
+use PhpParser\Lexer;
+use PhpParser\Lexer\TokenEmulator\AttributeEmulator;
+use PhpParser\Lexer\TokenEmulator\EnumTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\CoaleseEqualTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\ExplicitOctalEmulator;
+use PhpParser\Lexer\TokenEmulator\FlexibleDocStringEmulator;
+use PhpParser\Lexer\TokenEmulator\FnTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\MatchTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\NullsafeTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\NumericLiteralSeparatorEmulator;
+use PhpParser\Lexer\TokenEmulator\ReadonlyTokenEmulator;
+use PhpParser\Lexer\TokenEmulator\ReverseEmulator;
+use PhpParser\Lexer\TokenEmulator\TokenEmulator;
+
+class Emulative extends Lexer
+{
+    const PHP_7_3 = '7.3dev';
+    const PHP_7_4 = '7.4dev';
+    const PHP_8_0 = '8.0dev';
+    const PHP_8_1 = '8.1dev';
+
+    /** @var mixed[] Patches used to reverse changes introduced in the code */
+    private $patches = [];
+
+    /** @var TokenEmulator[] */
+    private $emulators = [];
+
+    /** @var string */
+    private $targetPhpVersion;
+
+    /**
+     * @param mixed[] $options Lexer options. In addition to the usual options,
+     *                         accepts a 'phpVersion' string that specifies the
+     *                         version to emulate. Defaults to newest supported.
+     */
+    public function __construct(array $options = [])
+    {
+        $this->targetPhpVersion = $options['phpVersion'] ?? Emulative::PHP_8_1;
+        unset($options['phpVersion']);
+
+        parent::__construct($options);
+
+        $emulators = [
+            new FlexibleDocStringEmulator(),
+            new FnTokenEmulator(),
+            new MatchTokenEmulator(),
+            new CoaleseEqualTokenEmulator(),
+            new NumericLiteralSeparatorEmulator(),
+            new NullsafeTokenEmulator(),
+            new AttributeEmulator(),
+            new EnumTokenEmulator(),
+            new ReadonlyTokenEmulator(),
+            new ExplicitOctalEmulator(),
+        ];
+
+        // Collect emulators that are relevant for the PHP version we're running
+        // and the PHP version we're targeting for emulation.
+        foreach ($emulators as $emulator) {
+            $emulatorPhpVersion = $emulator->getPhpVersion();
+            if ($this->isForwardEmulationNeeded($emulatorPhpVersion)) {
+                $this->emulators[] = $emulator;
+            } else if ($this->isReverseEmulationNeeded($emulatorPhpVersion)) {
+                $this->emulators[] = new ReverseEmulator($emulator);
+            }
+        }
+    }
+
+    public function startLexing(string $code, ErrorHandler $errorHandler = null) {
+        $emulators = array_filter($this->emulators, function($emulator) use($code) {
+            return $emulator->isEmulationNeeded($code);
+        });
+
+        if (empty($emulators)) {
+            // Nothing to emulate, yay
+            parent::startLexing($code, $errorHandler);
+            return;
+        }
+
+        $this->patches = [];
+        foreach ($emulators as $emulator) {
+            $code = $emulator->preprocessCode($code, $this->patches);
+        }
+
+        $collector = new ErrorHandler\Collecting();
+        parent::startLexing($code, $collector);
+        $this->sortPatches();
+        $this->fixupTokens();
+
+        $errors = $collector->getErrors();
+        if (!empty($errors)) {
+            $this->fixupErrors($errors);
+            foreach ($errors as $error) {
+                $errorHandler->handleError($error);
+            }
+        }
+
+        foreach ($emulators as $emulator) {
+            $this->tokens = $emulator->emulate($code, $this->tokens);
+        }
+    }
+
+    private function isForwardEmulationNeeded(string $emulatorPhpVersion): bool {
+        return version_compare(\PHP_VERSION, $emulatorPhpVersion, '<')
+            && version_compare($this->targetPhpVersion, $emulatorPhpVersion, '>=');
+    }
+
+    private function isReverseEmulationNeeded(string $emulatorPhpVersion): bool {
+        return version_compare(\PHP_VERSION, $emulatorPhpVersion, '>=')
+            && version_compare($this->targetPhpVersion, $emulatorPhpVersion, '<');
+    }
+
+    private function sortPatches()
+    {
+        // Patches may be contributed by different emulators.
+        // Make sure they are sorted by increasing patch position.
+        usort($this->patches, function($p1, $p2) {
+            return $p1[0] <=> $p2[0];
+        });
+    }
+
+    private function fixupTokens()
+    {
+        if (\count($this->patches) === 0) {
+            return;
+        }
+
+        // Load first patch
+        $patchIdx = 0;
+
+        list($patchPos, $patchType, $patchText) = $this->patches[$patchIdx];
+
+        // We use a manual loop over the tokens, because we modify the array on the fly
+        $pos = 0;
+        for ($i = 0, $c = \count($this->tokens); $i < $c; $i++) {
+            $token = $this->tokens[$i];
+            if (\is_string($token)) {
+                if ($patchPos === $pos) {
+                    // Only support replacement for string tokens.
+                    assert($patchType === 'replace');
+                    $this->tokens[$i] = $patchText;
+
+                    // Fetch the next patch
+                    $patchIdx++;
+                    if ($patchIdx >= \count($this->patches)) {
+                        // No more patches, we're done
+                        return;
+                    }
+                    list($patchPos, $patchType, $patchText) = $this->patches[$patchIdx];
+                }
+
+                $pos += \strlen($token);
+                continue;
+            }
+
+            $len = \strlen($token[1]);
+            $posDelta = 0;
+            while ($patchPos >= $pos && $patchPos < $pos + $len) {
+                $patchTextLen = \strlen($patchText);
+                if ($patchType === 'remove') {
+                    if ($patchPos === $pos && $patchTextLen === $len) {
+                        // Remove token entirely
+                        array_splice($this->tokens, $i, 1, []);
+                        $i--;
+                        $c--;
+                    } else {
+                        // Remove from token string
+                        $this->tokens[$i][1] = substr_replace(
+                            $token[1], '', $patchPos - $pos + $posDelta, $patchTextLen
+                        );
+                        $posDelta -= $patchTextLen;
+                    }
+                } elseif ($patchType === 'add') {
+                    // Insert into the token string
+                    $this->tokens[$i][1] = substr_replace(
+                        $token[1], $patchText, $patchPos - $pos + $posDelta, 0
+                    );
+                    $posDelta += $patchTextLen;
+                } else if ($patchType === 'replace') {
+                    // Replace inside the token string
+                    $this->tokens[$i][1] = substr_replace(
+                        $token[1], $patchText, $patchPos - $pos + $posDelta, $patchTextLen
+                    );
+                } else {
+                    assert(false);
+                }
+
+                // Fetch the next patch
+                $patchIdx++;
+                if ($patchIdx >= \count($this->patches)) {
+                    // No more patches, we're done
+                    return;
+                }
+
+                list($patchPos, $patchType, $patchText) = $this->patches[$patchIdx];
+
+                // Multiple patches may apply to the same token. Reload the current one to check
+                // If the new patch applies
+                $token = $this->tokens[$i];
+            }
+
+            $pos += $len;
+        }
+
+        // A patch did not apply
+        assert(false);
+    }
+
+    /**
+     * Fixup line and position information in errors.
+     *
+     * @param Error[] $errors
+     */
+    private function fixupErrors(array $errors) {
+        foreach ($errors as $error) {
+            $attrs = $error->getAttributes();
+
+            $posDelta = 0;
+            $lineDelta = 0;
+            foreach ($this->patches as $patch) {
+                list($patchPos, $patchType, $patchText) = $patch;
+                if ($patchPos >= $attrs['startFilePos']) {
+                    // No longer relevant
+                    break;
+                }
+
+                if ($patchType === 'add') {
+                    $posDelta += strlen($patchText);
+                    $lineDelta += substr_count($patchText, "\n");
+                } else if ($patchType === 'remove') {
+                    $posDelta -= strlen($patchText);
+                    $lineDelta -= substr_count($patchText, "\n");
+                }
+            }
+
+            $attrs['startFilePos'] += $posDelta;
+            $attrs['endFilePos'] += $posDelta;
+            $attrs['startLine'] += $lineDelta;
+            $attrs['endLine'] += $lineDelta;
+            $error->setAttributes($attrs);
+        }
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/AttributeEmulator.php

@@ -0,0 +1,56 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class AttributeEmulator extends TokenEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_8_0;
+    }
+
+    public function isEmulationNeeded(string $code) : bool
+    {
+        return strpos($code, '#[') !== false;
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        // We need to manually iterate and manage a count because we'll change
+        // the tokens array on the way.
+        $line = 1;
+        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
+            if ($tokens[$i] === '#' && isset($tokens[$i + 1]) && $tokens[$i + 1] === '[') {
+                array_splice($tokens, $i, 2, [
+                    [\T_ATTRIBUTE, '#[', $line]
+                ]);
+                $c--;
+                continue;
+            }
+            if (\is_array($tokens[$i])) {
+                $line += substr_count($tokens[$i][1], "\n");
+            }
+        }
+
+        return $tokens;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        // TODO
+        return $tokens;
+    }
+
+    public function preprocessCode(string $code, array &$patches): string {
+        $pos = 0;
+        while (false !== $pos = strpos($code, '#[', $pos)) {
+            // Replace #[ with %[
+            $code[$pos] = '%';
+            $patches[] = [$pos, 'replace', '#'];
+            $pos += 2;
+        }
+        return $code;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/CoaleseEqualTokenEmulator.php

@@ -0,0 +1,47 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class CoaleseEqualTokenEmulator extends TokenEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_7_4;
+    }
+
+    public function isEmulationNeeded(string $code): bool
+    {
+        return strpos($code, '??=') !== false;
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        // We need to manually iterate and manage a count because we'll change
+        // the tokens array on the way
+        $line = 1;
+        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
+            if (isset($tokens[$i + 1])) {
+                if ($tokens[$i][0] === T_COALESCE && $tokens[$i + 1] === '=') {
+                    array_splice($tokens, $i, 2, [
+                        [\T_COALESCE_EQUAL, '??=', $line]
+                    ]);
+                    $c--;
+                    continue;
+                }
+            }
+            if (\is_array($tokens[$i])) {
+                $line += substr_count($tokens[$i][1], "\n");
+            }
+        }
+
+        return $tokens;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        // ??= was not valid code previously, don't bother.
+        return $tokens;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/EnumTokenEmulator.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class EnumTokenEmulator extends KeywordEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_8_1;
+    }
+
+    public function getKeywordString(): string
+    {
+        return 'enum';
+    }
+
+    public function getKeywordToken(): int
+    {
+        return \T_ENUM;
+    }
+
+    protected function isKeywordContext(array $tokens, int $pos): bool
+    {
+        return parent::isKeywordContext($tokens, $pos)
+            && isset($tokens[$pos + 2])
+            && $tokens[$pos + 1][0] === \T_WHITESPACE
+            && $tokens[$pos + 2][0] === \T_STRING;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ExplicitOctalEmulator.php

@@ -0,0 +1,44 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+class ExplicitOctalEmulator extends TokenEmulator {
+    public function getPhpVersion(): string {
+        return Emulative::PHP_8_1;
+    }
+
+    public function isEmulationNeeded(string $code): bool {
+        return strpos($code, '0o') !== false || strpos($code, '0O') !== false;
+    }
+
+    public function emulate(string $code, array $tokens): array {
+        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
+            if ($tokens[$i][0] == \T_LNUMBER && $tokens[$i][1] === '0' &&
+                isset($tokens[$i + 1]) && $tokens[$i + 1][0] == \T_STRING &&
+                preg_match('/[oO][0-7]+(?:_[0-7]+)*/', $tokens[$i + 1][1])
+            ) {
+                $tokenKind = $this->resolveIntegerOrFloatToken($tokens[$i + 1][1]);
+                array_splice($tokens, $i, 2, [
+                    [$tokenKind, '0' . $tokens[$i + 1][1], $tokens[$i][2]],
+                ]);
+                $c--;
+            }
+        }
+        return $tokens;
+    }
+
+    private function resolveIntegerOrFloatToken(string $str): int
+    {
+        $str = substr($str, 1);
+        $str = str_replace('_', '', $str);
+        $num = octdec($str);
+        return is_float($num) ? \T_DNUMBER : \T_LNUMBER;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array {
+        // Explicit octals were not legal code previously, don't bother.
+        return $tokens;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/FlexibleDocStringEmulator.php

@@ -0,0 +1,76 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class FlexibleDocStringEmulator extends TokenEmulator
+{
+    const FLEXIBLE_DOC_STRING_REGEX = <<<'REGEX'
+/<<<[ \t]*(['"]?)([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)\1\r?\n
+(?:.*\r?\n)*?
+(?<indentation>\h*)\2(?![a-zA-Z0-9_\x80-\xff])(?<separator>(?:;?[\r\n])?)/x
+REGEX;
+
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_7_3;
+    }
+
+    public function isEmulationNeeded(string $code) : bool
+    {
+        return strpos($code, '<<<') !== false;
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        // Handled by preprocessing + fixup.
+        return $tokens;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        // Not supported.
+        return $tokens;
+    }
+
+    public function preprocessCode(string $code, array &$patches): string {
+        if (!preg_match_all(self::FLEXIBLE_DOC_STRING_REGEX, $code, $matches, PREG_SET_ORDER|PREG_OFFSET_CAPTURE)) {
+            // No heredoc/nowdoc found
+            return $code;
+        }
+
+        // Keep track of how much we need to adjust string offsets due to the modifications we
+        // already made
+        $posDelta = 0;
+        foreach ($matches as $match) {
+            $indentation = $match['indentation'][0];
+            $indentationStart = $match['indentation'][1];
+
+            $separator = $match['separator'][0];
+            $separatorStart = $match['separator'][1];
+
+            if ($indentation === '' && $separator !== '') {
+                // Ordinary heredoc/nowdoc
+                continue;
+            }
+
+            if ($indentation !== '') {
+                // Remove indentation
+                $indentationLen = strlen($indentation);
+                $code = substr_replace($code, '', $indentationStart + $posDelta, $indentationLen);
+                $patches[] = [$indentationStart + $posDelta, 'add', $indentation];
+                $posDelta -= $indentationLen;
+            }
+
+            if ($separator === '') {
+                // Insert newline as separator
+                $code = substr_replace($code, "\n", $separatorStart + $posDelta, 0);
+                $patches[] = [$separatorStart + $posDelta, 'remove', "\n"];
+                $posDelta += 1;
+            }
+        }
+
+        return $code;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/FnTokenEmulator.php

@@ -0,0 +1,23 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class FnTokenEmulator extends KeywordEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_7_4;
+    }
+
+    public function getKeywordString(): string
+    {
+        return 'fn';
+    }
+
+    public function getKeywordToken(): int
+    {
+        return \T_FN;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/KeywordEmulator.php

@@ -0,0 +1,62 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+abstract class KeywordEmulator extends TokenEmulator
+{
+    abstract function getKeywordString(): string;
+    abstract function getKeywordToken(): int;
+
+    public function isEmulationNeeded(string $code): bool
+    {
+        return strpos(strtolower($code), $this->getKeywordString()) !== false;
+    }
+
+    protected function isKeywordContext(array $tokens, int $pos): bool
+    {
+        $previousNonSpaceToken = $this->getPreviousNonSpaceToken($tokens, $pos);
+        return $previousNonSpaceToken === null || $previousNonSpaceToken[0] !== \T_OBJECT_OPERATOR;
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        $keywordString = $this->getKeywordString();
+        foreach ($tokens as $i => $token) {
+            if ($token[0] === T_STRING && strtolower($token[1]) === $keywordString
+                    && $this->isKeywordContext($tokens, $i)) {
+                $tokens[$i][0] = $this->getKeywordToken();
+            }
+        }
+
+        return $tokens;
+    }
+
+    /**
+     * @param mixed[] $tokens
+     * @return array|string|null
+     */
+    private function getPreviousNonSpaceToken(array $tokens, int $start)
+    {
+        for ($i = $start - 1; $i >= 0; --$i) {
+            if ($tokens[$i][0] === T_WHITESPACE) {
+                continue;
+            }
+
+            return $tokens[$i];
+        }
+
+        return null;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        $keywordToken = $this->getKeywordToken();
+        foreach ($tokens as $i => $token) {
+            if ($token[0] === $keywordToken) {
+                $tokens[$i][0] = \T_STRING;
+            }
+        }
+
+        return $tokens;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/MatchTokenEmulator.php

@@ -0,0 +1,23 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class MatchTokenEmulator extends KeywordEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_8_0;
+    }
+
+    public function getKeywordString(): string
+    {
+        return 'match';
+    }
+
+    public function getKeywordToken(): int
+    {
+        return \T_MATCH;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/NullsafeTokenEmulator.php

@@ -0,0 +1,67 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class NullsafeTokenEmulator extends TokenEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_8_0;
+    }
+
+    public function isEmulationNeeded(string $code): bool
+    {
+        return strpos($code, '?->') !== false;
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        // We need to manually iterate and manage a count because we'll change
+        // the tokens array on the way
+        $line = 1;
+        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
+            if ($tokens[$i] === '?' && isset($tokens[$i + 1]) && $tokens[$i + 1][0] === \T_OBJECT_OPERATOR) {
+                array_splice($tokens, $i, 2, [
+                    [\T_NULLSAFE_OBJECT_OPERATOR, '?->', $line]
+                ]);
+                $c--;
+                continue;
+            }
+
+            // Handle ?-> inside encapsed string.
+            if ($tokens[$i][0] === \T_ENCAPSED_AND_WHITESPACE && isset($tokens[$i - 1])
+                && $tokens[$i - 1][0] === \T_VARIABLE
+                && preg_match('/^\?->([a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)/', $tokens[$i][1], $matches)
+            ) {
+                $replacement = [
+                    [\T_NULLSAFE_OBJECT_OPERATOR, '?->', $line],
+                    [\T_STRING, $matches[1], $line],
+                ];
+                if (\strlen($matches[0]) !== \strlen($tokens[$i][1])) {
+                    $replacement[] = [
+                        \T_ENCAPSED_AND_WHITESPACE,
+                        \substr($tokens[$i][1], \strlen($matches[0])),
+                        $line
+                    ];
+                }
+                array_splice($tokens, $i, 1, $replacement);
+                $c += \count($replacement) - 1;
+                continue;
+            }
+
+            if (\is_array($tokens[$i])) {
+                $line += substr_count($tokens[$i][1], "\n");
+            }
+        }
+
+        return $tokens;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        // ?-> was not valid code previously, don't bother.
+        return $tokens;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/NumericLiteralSeparatorEmulator.php

@@ -0,0 +1,105 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class NumericLiteralSeparatorEmulator extends TokenEmulator
+{
+    const BIN = '(?:0b[01]+(?:_[01]+)*)';
+    const HEX = '(?:0x[0-9a-f]+(?:_[0-9a-f]+)*)';
+    const DEC = '(?:[0-9]+(?:_[0-9]+)*)';
+    const SIMPLE_FLOAT = '(?:' . self::DEC . '\.' . self::DEC . '?|\.' . self::DEC . ')';
+    const EXP = '(?:e[+-]?' . self::DEC . ')';
+    const FLOAT = '(?:' . self::SIMPLE_FLOAT . self::EXP . '?|' . self::DEC . self::EXP . ')';
+    const NUMBER = '~' . self::FLOAT . '|' . self::BIN . '|' . self::HEX . '|' . self::DEC . '~iA';
+
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_7_4;
+    }
+
+    public function isEmulationNeeded(string $code) : bool
+    {
+        return preg_match('~[0-9]_[0-9]~', $code)
+            || preg_match('~0x[0-9a-f]+_[0-9a-f]~i', $code);
+    }
+
+    public function emulate(string $code, array $tokens): array
+    {
+        // We need to manually iterate and manage a count because we'll change
+        // the tokens array on the way
+        $codeOffset = 0;
+        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
+            $token = $tokens[$i];
+            $tokenLen = \strlen(\is_array($token) ? $token[1] : $token);
+
+            if ($token[0] !== T_LNUMBER && $token[0] !== T_DNUMBER) {
+                $codeOffset += $tokenLen;
+                continue;
+            }
+
+            $res = preg_match(self::NUMBER, $code, $matches, 0, $codeOffset);
+            assert($res, "No number at number token position");
+
+            $match = $matches[0];
+            $matchLen = \strlen($match);
+            if ($matchLen === $tokenLen) {
+                // Original token already holds the full number.
+                $codeOffset += $tokenLen;
+                continue;
+            }
+
+            $tokenKind = $this->resolveIntegerOrFloatToken($match);
+            $newTokens = [[$tokenKind, $match, $token[2]]];
+
+            $numTokens = 1;
+            $len = $tokenLen;
+            while ($matchLen > $len) {
+                $nextToken = $tokens[$i + $numTokens];
+                $nextTokenText = \is_array($nextToken) ? $nextToken[1] : $nextToken;
+                $nextTokenLen = \strlen($nextTokenText);
+
+                $numTokens++;
+                if ($matchLen < $len + $nextTokenLen) {
+                    // Split trailing characters into a partial token.
+                    assert(is_array($nextToken), "Partial token should be an array token");
+                    $partialText = substr($nextTokenText, $matchLen - $len);
+                    $newTokens[] = [$nextToken[0], $partialText, $nextToken[2]];
+                    break;
+                }
+
+                $len += $nextTokenLen;
+            }
+
+            array_splice($tokens, $i, $numTokens, $newTokens);
+            $c -= $numTokens - \count($newTokens);
+            $codeOffset += $matchLen;
+        }
+
+        return $tokens;
+    }
+
+    private function resolveIntegerOrFloatToken(string $str): int
+    {
+        $str = str_replace('_', '', $str);
+
+        if (stripos($str, '0b') === 0) {
+            $num = bindec($str);
+        } elseif (stripos($str, '0x') === 0) {
+            $num = hexdec($str);
+        } elseif (stripos($str, '0') === 0 && ctype_digit($str)) {
+            $num = octdec($str);
+        } else {
+            $num = +$str;
+        }
+
+        return is_float($num) ? T_DNUMBER : T_LNUMBER;
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array
+    {
+        // Numeric separators were not legal code previously, don't bother.
+        return $tokens;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ReadonlyTokenEmulator.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+use PhpParser\Lexer\Emulative;
+
+final class ReadonlyTokenEmulator extends KeywordEmulator
+{
+    public function getPhpVersion(): string
+    {
+        return Emulative::PHP_8_1;
+    }
+
+    public function getKeywordString(): string
+    {
+        return 'readonly';
+    }
+
+    public function getKeywordToken(): int
+    {
+        return \T_READONLY;
+    }
+
+    protected function isKeywordContext(array $tokens, int $pos): bool
+    {
+        if (!parent::isKeywordContext($tokens, $pos)) {
+            return false;
+        }
+        // Support "function readonly("
+        return !(isset($tokens[$pos + 1]) &&
+                 ($tokens[$pos + 1][0] === '(' ||
+                  ($tokens[$pos + 1][0] === \T_WHITESPACE &&
+                   isset($tokens[$pos + 2]) &&
+                   $tokens[$pos + 2][0] === '(')));
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ReverseEmulator.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+/**
+ * Reverses emulation direction of the inner emulator.
+ */
+final class ReverseEmulator extends TokenEmulator
+{
+    /** @var TokenEmulator Inner emulator */
+    private $emulator;
+
+    public function __construct(TokenEmulator $emulator) {
+        $this->emulator = $emulator;
+    }
+
+    public function getPhpVersion(): string {
+        return $this->emulator->getPhpVersion();
+    }
+
+    public function isEmulationNeeded(string $code): bool {
+        return $this->emulator->isEmulationNeeded($code);
+    }
+
+    public function emulate(string $code, array $tokens): array {
+        return $this->emulator->reverseEmulate($code, $tokens);
+    }
+
+    public function reverseEmulate(string $code, array $tokens): array {
+        return $this->emulator->emulate($code, $tokens);
+    }
+
+    public function preprocessCode(string $code, array &$patches): string {
+        return $code;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/TokenEmulator.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Lexer\TokenEmulator;
+
+/** @internal */
+abstract class TokenEmulator
+{
+    abstract public function getPhpVersion(): string;
+
+    abstract public function isEmulationNeeded(string $code): bool;
+
+    /**
+     * @return array Modified Tokens
+     */
+    abstract public function emulate(string $code, array $tokens): array;
+
+    /**
+     * @return array Modified Tokens
+     */
+    abstract public function reverseEmulate(string $code, array $tokens): array;
+
+    public function preprocessCode(string $code, array &$patches): string {
+        return $code;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/NameContext.php

@@ -0,0 +1,285 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+use PhpParser\Node\Name;
+use PhpParser\Node\Name\FullyQualified;
+use PhpParser\Node\Stmt;
+
+class NameContext
+{
+    /** @var null|Name Current namespace */
+    protected $namespace;
+
+    /** @var Name[][] Map of format [aliasType => [aliasName => originalName]] */
+    protected $aliases = [];
+
+    /** @var Name[][] Same as $aliases but preserving original case */
+    protected $origAliases = [];
+
+    /** @var ErrorHandler Error handler */
+    protected $errorHandler;
+
+    /**
+     * Create a name context.
+     *
+     * @param ErrorHandler $errorHandler Error handling used to report errors
+     */
+    public function __construct(ErrorHandler $errorHandler) {
+        $this->errorHandler = $errorHandler;
+    }
+
+    /**
+     * Start a new namespace.
+     *
+     * This also resets the alias table.
+     *
+     * @param Name|null $namespace Null is the global namespace
+     */
+    public function startNamespace(Name $namespace = null) {
+        $this->namespace = $namespace;
+        $this->origAliases = $this->aliases = [
+            Stmt\Use_::TYPE_NORMAL   => [],
+            Stmt\Use_::TYPE_FUNCTION => [],
+            Stmt\Use_::TYPE_CONSTANT => [],
+        ];
+    }
+
+    /**
+     * Add an alias / import.
+     *
+     * @param Name   $name        Original name
+     * @param string $aliasName   Aliased name
+     * @param int    $type        One of Stmt\Use_::TYPE_*
+     * @param array  $errorAttrs Attributes to use to report an error
+     */
+    public function addAlias(Name $name, string $aliasName, int $type, array $errorAttrs = []) {
+        // Constant names are case sensitive, everything else case insensitive
+        if ($type === Stmt\Use_::TYPE_CONSTANT) {
+            $aliasLookupName = $aliasName;
+        } else {
+            $aliasLookupName = strtolower($aliasName);
+        }
+
+        if (isset($this->aliases[$type][$aliasLookupName])) {
+            $typeStringMap = [
+                Stmt\Use_::TYPE_NORMAL   => '',
+                Stmt\Use_::TYPE_FUNCTION => 'function ',
+                Stmt\Use_::TYPE_CONSTANT => 'const ',
+            ];
+
+            $this->errorHandler->handleError(new Error(
+                sprintf(
+                    'Cannot use %s%s as %s because the name is already in use',
+                    $typeStringMap[$type], $name, $aliasName
+                ),
+                $errorAttrs
+            ));
+            return;
+        }
+
+        $this->aliases[$type][$aliasLookupName] = $name;
+        $this->origAliases[$type][$aliasName] = $name;
+    }
+
+    /**
+     * Get current namespace.
+     *
+     * @return null|Name Namespace (or null if global namespace)
+     */
+    public function getNamespace() {
+        return $this->namespace;
+    }
+
+    /**
+     * Get resolved name.
+     *
+     * @param Name $name Name to resolve
+     * @param int  $type One of Stmt\Use_::TYPE_{FUNCTION|CONSTANT}
+     *
+     * @return null|Name Resolved name, or null if static resolution is not possible
+     */
+    public function getResolvedName(Name $name, int $type) {
+        // don't resolve special class names
+        if ($type === Stmt\Use_::TYPE_NORMAL && $name->isSpecialClassName()) {
+            if (!$name->isUnqualified()) {
+                $this->errorHandler->handleError(new Error(
+                    sprintf("'\\%s' is an invalid class name", $name->toString()),
+                    $name->getAttributes()
+                ));
+            }
+            return $name;
+        }
+
+        // fully qualified names are already resolved
+        if ($name->isFullyQualified()) {
+            return $name;
+        }
+
+        // Try to resolve aliases
+        if (null !== $resolvedName = $this->resolveAlias($name, $type)) {
+            return $resolvedName;
+        }
+
+        if ($type !== Stmt\Use_::TYPE_NORMAL && $name->isUnqualified()) {
+            if (null === $this->namespace) {
+                // outside of a namespace unaliased unqualified is same as fully qualified
+                return new FullyQualified($name, $name->getAttributes());
+            }
+
+            // Cannot resolve statically
+            return null;
+        }
+
+        // if no alias exists prepend current namespace
+        return FullyQualified::concat($this->namespace, $name, $name->getAttributes());
+    }
+
+    /**
+     * Get resolved class name.
+     *
+     * @param Name $name Class ame to resolve
+     *
+     * @return Name Resolved name
+     */
+    public function getResolvedClassName(Name $name) : Name {
+        return $this->getResolvedName($name, Stmt\Use_::TYPE_NORMAL);
+    }
+
+    /**
+     * Get possible ways of writing a fully qualified name (e.g., by making use of aliases).
+     *
+     * @param string $name Fully-qualified name (without leading namespace separator)
+     * @param int    $type One of Stmt\Use_::TYPE_*
+     *
+     * @return Name[] Possible representations of the name
+     */
+    public function getPossibleNames(string $name, int $type) : array {
+        $lcName = strtolower($name);
+
+        if ($type === Stmt\Use_::TYPE_NORMAL) {
+            // self, parent and static must always be unqualified
+            if ($lcName === "self" || $lcName === "parent" || $lcName === "static") {
+                return [new Name($name)];
+            }
+        }
+
+        // Collect possible ways to write this name, starting with the fully-qualified name
+        $possibleNames = [new FullyQualified($name)];
+
+        if (null !== $nsRelativeName = $this->getNamespaceRelativeName($name, $lcName, $type)) {
+            // Make sure there is no alias that makes the normally namespace-relative name
+            // into something else
+            if (null === $this->resolveAlias($nsRelativeName, $type)) {
+                $possibleNames[] = $nsRelativeName;
+            }
+        }
+
+        // Check for relevant namespace use statements
+        foreach ($this->origAliases[Stmt\Use_::TYPE_NORMAL] as $alias => $orig) {
+            $lcOrig = $orig->toLowerString();
+            if (0 === strpos($lcName, $lcOrig . '\\')) {
+                $possibleNames[] = new Name($alias . substr($name, strlen($lcOrig)));
+            }
+        }
+
+        // Check for relevant type-specific use statements
+        foreach ($this->origAliases[$type] as $alias => $orig) {
+            if ($type === Stmt\Use_::TYPE_CONSTANT) {
+                // Constants are are complicated-sensitive
+                $normalizedOrig = $this->normalizeConstName($orig->toString());
+                if ($normalizedOrig === $this->normalizeConstName($name)) {
+                    $possibleNames[] = new Name($alias);
+                }
+            } else {
+                // Everything else is case-insensitive
+                if ($orig->toLowerString() === $lcName) {
+                    $possibleNames[] = new Name($alias);
+                }
+            }
+        }
+
+        return $possibleNames;
+    }
+
+    /**
+     * Get shortest representation of this fully-qualified name.
+     *
+     * @param string $name Fully-qualified name (without leading namespace separator)
+     * @param int    $type One of Stmt\Use_::TYPE_*
+     *
+     * @return Name Shortest representation
+     */
+    public function getShortName(string $name, int $type) : Name {
+        $possibleNames = $this->getPossibleNames($name, $type);
+
+        // Find shortest name
+        $shortestName = null;
+        $shortestLength = \INF;
+        foreach ($possibleNames as $possibleName) {
+            $length = strlen($possibleName->toCodeString());
+            if ($length < $shortestLength) {
+                $shortestName = $possibleName;
+                $shortestLength = $length;
+            }
+        }
+
+       return $shortestName;
+    }
+
+    private function resolveAlias(Name $name, $type) {
+        $firstPart = $name->getFirst();
+
+        if ($name->isQualified()) {
+            // resolve aliases for qualified names, always against class alias table
+            $checkName = strtolower($firstPart);
+            if (isset($this->aliases[Stmt\Use_::TYPE_NORMAL][$checkName])) {
+                $alias = $this->aliases[Stmt\Use_::TYPE_NORMAL][$checkName];
+                return FullyQualified::concat($alias, $name->slice(1), $name->getAttributes());
+            }
+        } elseif ($name->isUnqualified()) {
+            // constant aliases are case-sensitive, function aliases case-insensitive
+            $checkName = $type === Stmt\Use_::TYPE_CONSTANT ? $firstPart : strtolower($firstPart);
+            if (isset($this->aliases[$type][$checkName])) {
+                // resolve unqualified aliases
+                return new FullyQualified($this->aliases[$type][$checkName], $name->getAttributes());
+            }
+        }
+
+        // No applicable aliases
+        return null;
+    }
+
+    private function getNamespaceRelativeName(string $name, string $lcName, int $type) {
+        if (null === $this->namespace) {
+            return new Name($name);
+        }
+
+        if ($type === Stmt\Use_::TYPE_CONSTANT) {
+            // The constants true/false/null always resolve to the global symbols, even inside a
+            // namespace, so they may be used without qualification
+            if ($lcName === "true" || $lcName === "false" || $lcName === "null") {
+                return new Name($name);
+            }
+        }
+
+        $namespacePrefix = strtolower($this->namespace . '\\');
+        if (0 === strpos($lcName, $namespacePrefix)) {
+            return new Name(substr($name, strlen($namespacePrefix)));
+        }
+
+        return null;
+    }
+
+    private function normalizeConstName(string $name) {
+        $nsSep = strrpos($name, '\\');
+        if (false === $nsSep) {
+            return $name;
+        }
+
+        // Constants have case-insensitive namespace and case-sensitive short-name
+        $ns = substr($name, 0, $nsSep);
+        $shortName = substr($name, $nsSep + 1);
+        return strtolower($ns) . '\\' . $shortName;
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node.php

@@ -0,0 +1,151 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+interface Node
+{
+    /**
+     * Gets the type of the node.
+     *
+     * @return string Type of the node
+     */
+    public function getType() : string;
+
+    /**
+     * Gets the names of the sub nodes.
+     *
+     * @return array Names of sub nodes
+     */
+    public function getSubNodeNames() : array;
+
+    /**
+     * Gets line the node started in (alias of getStartLine).
+     *
+     * @return int Start line (or -1 if not available)
+     */
+    public function getLine() : int;
+
+    /**
+     * Gets line the node started in.
+     *
+     * Requires the 'startLine' attribute to be enabled in the lexer (enabled by default).
+     *
+     * @return int Start line (or -1 if not available)
+     */
+    public function getStartLine() : int;
+
+    /**
+     * Gets the line the node ended in.
+     *
+     * Requires the 'endLine' attribute to be enabled in the lexer (enabled by default).
+     *
+     * @return int End line (or -1 if not available)
+     */
+    public function getEndLine() : int;
+
+    /**
+     * Gets the token offset of the first token that is part of this node.
+     *
+     * The offset is an index into the array returned by Lexer::getTokens().
+     *
+     * Requires the 'startTokenPos' attribute to be enabled in the lexer (DISABLED by default).
+     *
+     * @return int Token start position (or -1 if not available)
+     */
+    public function getStartTokenPos() : int;
+
+    /**
+     * Gets the token offset of the last token that is part of this node.
+     *
+     * The offset is an index into the array returned by Lexer::getTokens().
+     *
+     * Requires the 'endTokenPos' attribute to be enabled in the lexer (DISABLED by default).
+     *
+     * @return int Token end position (or -1 if not available)
+     */
+    public function getEndTokenPos() : int;
+
+    /**
+     * Gets the file offset of the first character that is part of this node.
+     *
+     * Requires the 'startFilePos' attribute to be enabled in the lexer (DISABLED by default).
+     *
+     * @return int File start position (or -1 if not available)
+     */
+    public function getStartFilePos() : int;
+
+    /**
+     * Gets the file offset of the last character that is part of this node.
+     *
+     * Requires the 'endFilePos' attribute to be enabled in the lexer (DISABLED by default).
+     *
+     * @return int File end position (or -1 if not available)
+     */
+    public function getEndFilePos() : int;
+
+    /**
+     * Gets all comments directly preceding this node.
+     *
+     * The comments are also available through the "comments" attribute.
+     *
+     * @return Comment[]
+     */
+    public function getComments() : array;
+
+    /**
+     * Gets the doc comment of the node.
+     *
+     * @return null|Comment\Doc Doc comment object or null
+     */
+    public function getDocComment();
+
+    /**
+     * Sets the doc comment of the node.
+     *
+     * This will either replace an existing doc comment or add it to the comments array.
+     *
+     * @param Comment\Doc $docComment Doc comment to set
+     */
+    public function setDocComment(Comment\Doc $docComment);
+
+    /**
+     * Sets an attribute on a node.
+     *
+     * @param string $key
+     * @param mixed  $value
+     */
+    public function setAttribute(string $key, $value);
+
+    /**
+     * Returns whether an attribute exists.
+     *
+     * @param string $key
+     *
+     * @return bool
+     */
+    public function hasAttribute(string $key) : bool;
+
+    /**
+     * Returns the value of an attribute.
+     *
+     * @param string $key
+     * @param mixed  $default
+     *
+     * @return mixed
+     */
+    public function getAttribute(string $key, $default = null);
+
+    /**
+     * Returns all the attributes of this node.
+     *
+     * @return array
+     */
+    public function getAttributes() : array;
+
+    /**
+     * Replaces all the attributes of this node.
+     *
+     * @param array $attributes
+     */
+    public function setAttributes(array $attributes);
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Arg.php

@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node\VariadicPlaceholder;
+use PhpParser\NodeAbstract;
+
+class Arg extends NodeAbstract
+{
+    /** @var Identifier|null Parameter name (for named parameters) */
+    public $name;
+    /** @var Expr Value to pass */
+    public $value;
+    /** @var bool Whether to pass by ref */
+    public $byRef;
+    /** @var bool Whether to unpack the argument */
+    public $unpack;
+
+    /**
+     * Constructs a function call argument node.
+     *
+     * @param Expr  $value      Value to pass
+     * @param bool  $byRef      Whether to pass by ref
+     * @param bool  $unpack     Whether to unpack the argument
+     * @param array $attributes Additional attributes
+     * @param Identifier|null $name Parameter name (for named parameters)
+     */
+    public function __construct(
+        Expr $value, bool $byRef = false, bool $unpack = false, array $attributes = [],
+        Identifier $name = null
+    ) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->value = $value;
+        $this->byRef = $byRef;
+        $this->unpack = $unpack;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'value', 'byRef', 'unpack'];
+    }
+    
+    public function getType() : string {
+        return 'Arg';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Attribute.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class Attribute extends NodeAbstract
+{
+    /** @var Name Attribute name */
+    public $name;
+
+    /** @var Arg[] Attribute arguments */
+    public $args;
+
+    /**
+     * @param Node\Name $name       Attribute name
+     * @param Arg[]     $args       Attribute arguments
+     * @param array     $attributes Additional node attributes
+     */
+    public function __construct(Name $name, array $args = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = $name;
+        $this->args = $args;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'args'];
+    }
+
+    public function getType() : string {
+        return 'Attribute';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/AttributeGroup.php

@@ -0,0 +1,29 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\Node;
+use PhpParser\NodeAbstract;
+
+class AttributeGroup extends NodeAbstract
+{
+    /** @var Attribute[] Attributes */
+    public $attrs;
+
+    /**
+     * @param Attribute[] $attrs PHP attributes
+     * @param array $attributes Additional node attributes
+     */
+    public function __construct(array $attrs, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->attrs = $attrs;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrs'];
+    }
+
+    public function getType() : string {
+        return 'AttributeGroup';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/ComplexType.php

@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+/**
+ * This is a base class for complex types, including nullable types and union types.
+ *
+ * It does not provide any shared behavior and exists only for type-checking purposes.
+ */
+abstract class ComplexType extends NodeAbstract
+{
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Const_.php

@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Const_ extends NodeAbstract
+{
+    /** @var Identifier Name */
+    public $name;
+    /** @var Expr Value */
+    public $value;
+
+    /** @var Name|null Namespaced name (if using NameResolver) */
+    public $namespacedName;
+
+    /**
+     * Constructs a const node for use in class const and const statements.
+     *
+     * @param string|Identifier $name       Name
+     * @param Expr              $value      Value
+     * @param array             $attributes Additional attributes
+     */
+    public function __construct($name, Expr $value, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->name = \is_string($name) ? new Identifier($name) : $name;
+        $this->value = $value;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['name', 'value'];
+    }
+
+    public function getType() : string {
+        return 'Const';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr.php

@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+abstract class Expr extends NodeAbstract
+{
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayDimFetch.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ArrayDimFetch extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var null|Expr Array index / dim */
+    public $dim;
+
+    /**
+     * Constructs an array index fetch node.
+     *
+     * @param Expr      $var        Variable
+     * @param null|Expr $dim        Array index / dim
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $dim = null, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->dim = $dim;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'dim'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_ArrayDimFetch';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrayItem.php

@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ArrayItem extends Expr
+{
+    /** @var null|Expr Key */
+    public $key;
+    /** @var Expr Value */
+    public $value;
+    /** @var bool Whether to assign by reference */
+    public $byRef;
+    /** @var bool Whether to unpack the argument */
+    public $unpack;
+
+    /**
+     * Constructs an array item node.
+     *
+     * @param Expr      $value      Value
+     * @param null|Expr $key        Key
+     * @param bool      $byRef      Whether to assign by reference
+     * @param array     $attributes Additional attributes
+     */
+    public function __construct(Expr $value, Expr $key = null, bool $byRef = false, array $attributes = [], bool $unpack = false) {
+        $this->attributes = $attributes;
+        $this->key = $key;
+        $this->value = $value;
+        $this->byRef = $byRef;
+        $this->unpack = $unpack;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['key', 'value', 'byRef', 'unpack'];
+    }
+
+    public function getType() : string {
+        return 'Expr_ArrayItem';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Array_.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Array_ extends Expr
+{
+    // For use in "kind" attribute
+    const KIND_LONG = 1;  // array() syntax
+    const KIND_SHORT = 2; // [] syntax
+
+    /** @var (ArrayItem|null)[] Items */
+    public $items;
+
+    /**
+     * Constructs an array node.
+     *
+     * @param (ArrayItem|null)[] $items      Items of the array
+     * @param array       $attributes Additional attributes
+     */
+    public function __construct(array $items = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->items = $items;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['items'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Array';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php

@@ -0,0 +1,79 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr;
+use PhpParser\Node\FunctionLike;
+
+class ArrowFunction extends Expr implements FunctionLike
+{
+    /** @var bool */
+    public $static;
+
+    /** @var bool */
+    public $byRef;
+
+    /** @var Node\Param[] */
+    public $params = [];
+
+    /** @var null|Node\Identifier|Node\Name|Node\ComplexType */
+    public $returnType;
+
+    /** @var Expr */
+    public $expr;
+    /** @var Node\AttributeGroup[] */
+    public $attrGroups;
+
+    /**
+     * @param array $subNodes   Array of the following optional subnodes:
+     *                          'static'     => false   : Whether the closure is static
+     *                          'byRef'      => false   : Whether to return by reference
+     *                          'params'     => array() : Parameters
+     *                          'returnType' => null    : Return type
+     *                          'expr'       => Expr    : Expression body
+     *                          'attrGroups' => array() : PHP attribute groups
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $subNodes = [], array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->static = $subNodes['static'] ?? false;
+        $this->byRef = $subNodes['byRef'] ?? false;
+        $this->params = $subNodes['params'] ?? [];
+        $returnType = $subNodes['returnType'] ?? null;
+        $this->returnType = \is_string($returnType) ? new Node\Identifier($returnType) : $returnType;
+        $this->expr = $subNodes['expr'];
+        $this->attrGroups = $subNodes['attrGroups'] ?? [];
+    }
+
+    public function getSubNodeNames() : array {
+        return ['attrGroups', 'static', 'byRef', 'params', 'returnType', 'expr'];
+    }
+
+    public function returnsByRef() : bool {
+        return $this->byRef;
+    }
+
+    public function getParams() : array {
+        return $this->params;
+    }
+
+    public function getReturnType() {
+        return $this->returnType;
+    }
+
+    public function getAttrGroups() : array {
+        return $this->attrGroups;
+    }
+
+    /**
+     * @return Node\Stmt\Return_[]
+     */
+    public function getStmts() : array {
+        return [new Node\Stmt\Return_($this->expr)];
+    }
+
+    public function getType() : string {
+        return 'Expr_ArrowFunction';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/Assign.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class Assign extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs an assignment node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_Assign';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp.php

@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+abstract class AssignOp extends Expr
+{
+    /** @var Expr Variable */
+    public $var;
+    /** @var Expr Expression */
+    public $expr;
+
+    /**
+     * Constructs a compound assignment operation node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseAnd.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseAnd extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseOr.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseOr extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/BitwiseXor.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class BitwiseXor extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_BitwiseXor';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Coalesce.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Coalesce extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Coalesce';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Concat.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Concat extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Concat';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Div.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Div extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Div';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Minus.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Minus extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Minus';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mod.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Mod extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Mod';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Mul.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Mul extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Mul';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Plus.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Plus extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Plus';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/Pow.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class Pow extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_Pow';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftLeft.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class ShiftLeft extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_ShiftLeft';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignOp/ShiftRight.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\AssignOp;
+
+use PhpParser\Node\Expr\AssignOp;
+
+class ShiftRight extends AssignOp
+{
+    public function getType() : string {
+        return 'Expr_AssignOp_ShiftRight';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/AssignRef.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class AssignRef extends Expr
+{
+    /** @var Expr Variable reference is assigned to */
+    public $var;
+    /** @var Expr Variable which is referenced */
+    public $expr;
+
+    /**
+     * Constructs an assignment node.
+     *
+     * @param Expr  $var        Variable
+     * @param Expr  $expr       Expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $var, Expr $expr, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->var = $var;
+        $this->expr = $expr;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['var', 'expr'];
+    }
+    
+    public function getType() : string {
+        return 'Expr_AssignRef';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp.php

@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+abstract class BinaryOp extends Expr
+{
+    /** @var Expr The left hand side expression */
+    public $left;
+    /** @var Expr The right hand side expression */
+    public $right;
+
+    /**
+     * Constructs a binary operator node.
+     *
+     * @param Expr  $left       The left hand side expression
+     * @param Expr  $right      The right hand side expression
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(Expr $left, Expr $right, array $attributes = []) {
+        $this->attributes = $attributes;
+        $this->left = $left;
+        $this->right = $right;
+    }
+
+    public function getSubNodeNames() : array {
+        return ['left', 'right'];
+    }
+
+    /**
+     * Get the operator sigil for this binary operation.
+     *
+     * In the case there are multiple possible sigils for an operator, this method does not
+     * necessarily return the one used in the parsed code.
+     *
+     * @return string
+     */
+    abstract public function getOperatorSigil() : string;
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseAnd.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseAnd extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '&';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseOr.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseOr extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '|';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseXor.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseXor extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '^';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BitwiseXor';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanAnd.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanAnd extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '&&';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BooleanAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanOr.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanOr extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '||';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_BooleanOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Coalesce.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Coalesce extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '??';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Coalesce';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Concat.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Concat extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '.';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Concat';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Div.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Div extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '/';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Div';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Equal.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Equal extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '==';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Equal';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Greater.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Greater extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '>';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Greater';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/GreaterOrEqual.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class GreaterOrEqual extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '>=';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_GreaterOrEqual';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Identical.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Identical extends BinaryOp
+{
+    public function getOperatorSigil() : string {
+        return '===';
+    }
+    
+    public function getType() : string {
+        return 'Expr_BinaryOp_Identical';
+    }
+}