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Drop 5.4 support from emulative lexer

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This commit is contained in:
Nikita Popov 2015-05-02 22:13:55 +02:00
parent 6b4a17b3e0
commit e6619f5514
1 changed files with 5 additions and 31 deletions
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36
lib/PhpParser/Lexer/Emulative.php
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@ -22,7 +22,6 @@ class Emulative extends \PhpParser\Lexer
const PHP_7_0 = '7.0.0dev';
const PHP_5_6 = '5.6.0rc1';
const PHP_5_5 = '5.5.0beta1';
const PHP_5_4 = '5.4.0beta1';
public function __construct(array $options = array()) {
parent::__construct($options);
@ -32,12 +31,6 @@ class Emulative extends \PhpParser\Lexer
'finally' => Parser::T_FINALLY,
'yield' => Parser::T_YIELD,
),
self::PHP_5_4 => array(
'callable' => Parser::T_CALLABLE,
'insteadof' => Parser::T_INSTEADOF,
'trait' => Parser::T_TRAIT,
'__trait__' => Parser::T_TRAIT_C,
),
);
$this->newKeywords = array();
@ -106,12 +99,7 @@ class Emulative extends \PhpParser\Lexer
$code = preg_replace('((?<!/)\*\*=)', '~__EMU__POWEQUAL__~', $code);
$code = preg_replace('((?<!/)\*\*(?!/))', '~__EMU__POW__~', $code);
if (version_compare(PHP_VERSION, self::PHP_5_4, '>=')) {
return $code;
}
// binary notation (0b010101101001...)
return preg_replace('(\b0b[01]+\b)', '~__EMU__BINARY__$0__~', $code);
return $code;
}
/*
@ -130,14 +118,7 @@ class Emulative extends \PhpParser\Lexer
&& T_STRING === $this->tokens[$i + 1][0]
&& preg_match('(^__EMU__([A-Z]++)__(?:([A-Za-z0-9]++)__)?$)', $this->tokens[$i + 1][1], $matches)
) {
if ('BINARY' === $matches[1]) {
// the binary number can either be an integer or a double, so return a LNUMBER
// or DNUMBER respectively
$isInt = is_int(bindec($matches[2]));
$replace = array(
array($isInt ? T_LNUMBER : T_DNUMBER, $matches[2], $this->tokens[$i + 1][2])
);
} else if ('ELLIPSIS' === $matches[1]) {
if ('ELLIPSIS' === $matches[1]) {
$replace = array(
array(self::T_ELLIPSIS, '...', $this->tokens[$i + 1][2])
);
@ -158,7 +139,7 @@ class Emulative extends \PhpParser\Lexer
array(self::T_SPACESHIP, '<=>', $this->tokens[$i + 1][2]),
);
} else if ('YIELDFROM' === $matches[1]) {
$content = $this->hex2bin($matches[2]);
$content = hex2bin($matches[2]);
$replace = array(
array(self::T_YIELD_FROM, $content, $this->tokens[$i + 1][2] - substr_count($content, "\n"))
);
@ -187,9 +168,7 @@ class Emulative extends \PhpParser\Lexer
* multichar tokens (like strings) to their original value.
*/
public function restoreContentCallback(array $matches) {
if ('BINARY' === $matches[1]) {
return $matches[2];
} else if ('ELLIPSIS' === $matches[1]) {
if ('ELLIPSIS' === $matches[1]) {
return '...';
} else if ('POW' === $matches[1]) {
return '**';
@ -200,17 +179,12 @@ class Emulative extends \PhpParser\Lexer
} else if ('SPACESHIP' === $matches[1]) {
return '<=>';
} else if ('YIELDFROM' === $matches[1]) {
return $this->hex2bin($matches[2]);
return hex2bin($matches[2]);
} else {
return $matches[0];
}
}
private function hex2bin($str) {
// TODO Drop when removing support for PHP 5.3
return pack('H*', $str);
}
public function getNextToken(&$value = null, &$startAttributes = null, &$endAttributes = null) {
$token = parent::getNextToken($value, $startAttributes, $endAttributes);