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[yaffs-website] / vendor / nikic / php-parser / lib / PhpParser / Lexer / Emulative.php

diff --git a/vendor/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php b/vendor/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php
index 739a328abdd2fedbe31716e624b36b71e69b12f0..647aaa34caf0d98d0ce898734285813a40f84728 100644 (file)
--- a/vendor/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php
+++ b/vendor/nikic/php-parser/lib/PhpParser/Lexer/Emulative.php
@@ -1,174 +1,8 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace PhpParser\Lexer;
 
-use PhpParser\ErrorHandler;
-use PhpParser\Parser\Tokens;
-
 class Emulative extends \PhpParser\Lexer
 {
-    protected $newKeywords;
-    protected $inObjectAccess;
-
-    const T_ELLIPSIS   = 1001;
-    const T_POW        = 1002;
-    const T_POW_EQUAL  = 1003;
-    const T_COALESCE   = 1004;
-    const T_SPACESHIP  = 1005;
-    const T_YIELD_FROM = 1006;
-
-    const PHP_7_0 = '7.0.0dev';
-    const PHP_5_6 = '5.6.0rc1';
-
-    public function __construct(array $options = array()) {
-        parent::__construct($options);
-
-        $newKeywordsPerVersion = array(
-            // No new keywords since PHP 5.5
-        );
-
-        $this->newKeywords = array();
-        foreach ($newKeywordsPerVersion as $version => $newKeywords) {
-            if (version_compare(PHP_VERSION, $version, '>=')) {
-                break;
-            }
-
-            $this->newKeywords += $newKeywords;
-        }
-
-        if (version_compare(PHP_VERSION, self::PHP_7_0, '>=')) {
-            return;
-        }
-        $this->tokenMap[self::T_COALESCE]   = Tokens::T_COALESCE;
-        $this->tokenMap[self::T_SPACESHIP]  = Tokens::T_SPACESHIP;
-        $this->tokenMap[self::T_YIELD_FROM] = Tokens::T_YIELD_FROM;
-
-        if (version_compare(PHP_VERSION, self::PHP_5_6, '>=')) {
-            return;
-        }
-        $this->tokenMap[self::T_ELLIPSIS]  = Tokens::T_ELLIPSIS;
-        $this->tokenMap[self::T_POW]       = Tokens::T_POW;
-        $this->tokenMap[self::T_POW_EQUAL] = Tokens::T_POW_EQUAL;
-    }
-
-    public function startLexing($code, ErrorHandler $errorHandler = null) {
-        $this->inObjectAccess = false;
-
-        parent::startLexing($code, $errorHandler);
-        if ($this->requiresEmulation($code)) {
-            $this->emulateTokens();
-        }
-    }
-
-    /*
-     * Checks if the code is potentially using features that require emulation.
-     */
-    protected function requiresEmulation($code) {
-        if (version_compare(PHP_VERSION, self::PHP_7_0, '>=')) {
-            return false;
-        }
-
-        if (preg_match('(\?\?|<=>|yield[ \n\r\t]+from)', $code)) {
-            return true;
-        }
-
-        if (version_compare(PHP_VERSION, self::PHP_5_6, '>=')) {
-            return false;
-        }
-
-        return preg_match('(\.\.\.|(?<!/)\*\*(?!/))', $code);
-    }
-
-    /*
-     * Emulates tokens for newer PHP versions.
-     */
-    protected function emulateTokens() {
-        // We need to manually iterate and manage a count because we'll change
-        // the tokens array on the way
-        $line = 1;
-        for ($i = 0, $c = count($this->tokens); $i < $c; ++$i) {
-            $replace = null;
-            if (isset($this->tokens[$i + 1])) {
-                if ($this->tokens[$i] === '?' && $this->tokens[$i + 1] === '?') {
-                    array_splice($this->tokens, $i, 2, array(
-                        array(self::T_COALESCE, '??', $line)
-                    ));
-                    $c--;
-                    continue;
-                }
-                if ($this->tokens[$i][0] === T_IS_SMALLER_OR_EQUAL
-                    && $this->tokens[$i + 1] === '>'
-                ) {
-                    array_splice($this->tokens, $i, 2, array(
-                        array(self::T_SPACESHIP, '<=>', $line)
-                    ));
-                    $c--;
-                    continue;
-                }
-                if ($this->tokens[$i] === '*' && $this->tokens[$i + 1] === '*') {
-                    array_splice($this->tokens, $i, 2, array(
-                        array(self::T_POW, '**', $line)
-                    ));
-                    $c--;
-                    continue;
-                }
-                if ($this->tokens[$i] === '*' && $this->tokens[$i + 1][0] === T_MUL_EQUAL) {
-                    array_splice($this->tokens, $i, 2, array(
-                        array(self::T_POW_EQUAL, '**=', $line)
-                    ));
-                    $c--;
-                    continue;
-                }
-            }
-
-            if (isset($this->tokens[$i + 2])) {
-                if ($this->tokens[$i][0] === T_YIELD && $this->tokens[$i + 1][0] === T_WHITESPACE
-                    && $this->tokens[$i + 2][0] === T_STRING
-                    && !strcasecmp($this->tokens[$i + 2][1], 'from')
-                ) {
-                    array_splice($this->tokens, $i, 3, array(
-                        array(
-                            self::T_YIELD_FROM,
-                            $this->tokens[$i][1] . $this->tokens[$i + 1][1] . $this->tokens[$i + 2][1],
-                            $line
-                        )
-                    ));
-                    $c -= 2;
-                    $line += substr_count($this->tokens[$i][1], "\n");
-                    continue;
-                }
-                if ($this->tokens[$i] === '.' && $this->tokens[$i + 1] === '.'
-                    && $this->tokens[$i + 2] === '.'
-                ) {
-                    array_splice($this->tokens, $i, 3, array(
-                        array(self::T_ELLIPSIS, '...', $line)
-                    ));
-                    $c -= 2;
-                    continue;
-                }
-            }
-
-            if (\is_array($this->tokens[$i])) {
-                $line += substr_count($this->tokens[$i][1], "\n");
-            }
-        }
-    }
-
-    public function getNextToken(&$value = null, &$startAttributes = null, &$endAttributes = null) {
-        $token = parent::getNextToken($value, $startAttributes, $endAttributes);
-
-        // replace new keywords by their respective tokens. This is not done
-        // if we currently are in an object access (e.g. in $obj->namespace
-        // "namespace" stays a T_STRING tokens and isn't converted to T_NAMESPACE)
-        if (Tokens::T_STRING === $token && !$this->inObjectAccess) {
-            if (isset($this->newKeywords[strtolower($value)])) {
-                return $this->newKeywords[strtolower($value)];
-            }
-        } else {
-            // keep track of whether we currently are in an object access (after ->)
-            $this->inObjectAccess = Tokens::T_OBJECT_OPERATOR === $token;
-        }
-
-        return $token;
-    }
+    /* No features requiring emulation have been added in PHP > 7.0 */
 }