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the whole shebang

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Daniel
2014-11-25 16:42:40 +01:00
parent 7f74c0613e
commit ab1334c0cf
3686 changed files with 496409 additions and 1 deletions
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29
vendor/nikic/php-parser/grammar/README.md vendored Normal file
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What do all those files mean?
=============================
* `zend_language_parser.phpy`: PHP grammer written in a pseudo language
* `analyze.php`: Analyzes the `.phpy`-grammer and outputs some info about it
* `rebuildParser.php`: Preprocesses the `.phpy`-grammar and builds the parser using `kmyacc`
* `kmyacc.php.parser`: A `kmyacc` parser prototype file for PHP
.phpy pseudo language
=====================
The `.phpy` file is a normal grammer in `kmyacc` (`yacc`) style, with some transformations
applied to it:
* Nodes are created using the syntax `Name[..., ...]`. This is transformed into
`new PHPParser_Node_Name(..., ..., $attributes)`
* `Name::abc` is transformed to `PHPParser_Node_Name::abc`
* Some function-like constructs are resolved (see `rebuildParser.php` for a list)
* Associative arrays are written as `[key: value, ...]`, which is transformed to
`array('key' => value, ...)`
Building the parser
===================
In order to rebuild the parser, you need [moriyoshi's fork of kmyacc](https://github.com/moriyoshi/kmyacc-forked).
After you compiled/installed it, run the `rebuildParser.php` script.
By default only the `Parser.php` is built. If you want to additionally build `Parser/Debug.php` and `y.output` run the
script with `--debug`. If you want to retain the preprocessed grammar pass `--keep-tmp-grammar`.

96
vendor/nikic/php-parser/grammar/analyze.php vendored Normal file
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<?php
const GRAMMAR_FILE = './zend_language_parser.phpy';
const LIB = '(?(DEFINE)
(?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\')
(?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+")
(?<string>(?&singleQuotedString)|(?&doubleQuotedString))
(?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/)
(?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+})
)';
const RULE_BLOCK = '(?<name>[a-z_]++):(?<rules>[^\'"/{};]*+(?:(?:(?&string)|(?&comment)|(?&code)|/|})[^\'"/{};]*+)*+);';
$usedTerminals = array_flip(array(
'T_VARIABLE', 'T_STRING', 'T_INLINE_HTML', 'T_ENCAPSED_AND_WHITESPACE',
'T_LNUMBER', 'T_DNUMBER', 'T_CONSTANT_ENCAPSED_STRING', 'T_STRING_VARNAME', 'T_NUM_STRING'
));
$unusedNonterminals = array_flip(array(
'case_separator', 'optional_comma'
));
function regex($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);
}
return array_filter($pieces);
}
echo '<pre>';
////////////////////
////////////////////
////////////////////
list($defs, $ruleBlocks) = magicSplit('%%', file_get_contents(GRAMMAR_FILE));
if ('' !== trim(preg_replace(regex(RULE_BLOCK), '', $ruleBlocks))) {
die('Not all rule blocks were properly recognized!');
}
preg_match_all(regex(RULE_BLOCK), $ruleBlocks, $ruleBlocksMatches, PREG_SET_ORDER);
foreach ($ruleBlocksMatches as $match) {
$ruleBlockName = $match['name'];
$rules = magicSplit('\|', $match['rules']);
foreach ($rules as &$rule) {
$parts = magicSplit('\s+', $rule);
$usedParts = array();
foreach ($parts as $part) {
if ('{' === $part[0]) {
preg_match_all('~\$([0-9]+)~', $part, $backReferencesMatches, PREG_SET_ORDER);
foreach ($backReferencesMatches as $match) {
$usedParts[$match[1]] = true;
}
}
}
$i = 1;
foreach ($parts as &$part) {
if ('/' === $part[0]) {
continue;
}
if (isset($usedParts[$i])) {
if ('\'' === $part[0] || '{' === $part[0]
|| (ctype_upper($part[0]) && !isset($usedTerminals[$part]))
|| (ctype_lower($part[0]) && isset($unusedNonterminals[$part]))
) {
$part = '<span style="background-color: red; color: white;">' . $part . '</span>';
} else {
$part = '<strong><em>' . $part . '</em></strong>';
}
} elseif ((ctype_upper($part[0]) && isset($usedTerminals[$part]))
|| (ctype_lower($part[0]) && !isset($unusedNonterminals[$part]))
) {
$part = '<span style="background-color: blue; color: white;">' . $part . '</span>';
}
++$i;
}
$rule = implode(' ', $parts);
}
echo $ruleBlockName, ':', "\n", ' ', implode("\n" . ' | ', $rules), "\n", ';', "\n\n";
}

361
vendor/nikic/php-parser/grammar/kmyacc.php.parser vendored Normal file
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<?php
$meta #
#semval($) $this->yyval
#semval($,%t) $this->yyval
#semval(%n) $this->yyastk[$this->stackPos-(%l-%n)]
#semval(%n,%t) $this->yyastk[$this->stackPos-(%l-%n)]
#include;
/* This is an automatically GENERATED file, which should not be manually edited.
* Instead edit one of the following:
* * the grammar file grammar/zend_language_parser.phpy
* * the parser skeleton grammar/kymacc.php.parser
* * the preprocessing script grammar/rebuildParser.php
*
* The skeleton for this parser was written by Moriyoshi Koizumi and is based on
* the work by Masato Bito and is in the PUBLIC DOMAIN.
*/
#if -t
class #(-p)_Debug extends #(-p)
#endif
#ifnot -t
class #(-p)
#endif
{
#ifnot -t
const TOKEN_NONE = -1;
const TOKEN_INVALID = #(YYBADCH);
const TOKEN_MAP_SIZE = #(YYMAXLEX);
const YYLAST = #(YYLAST);
const YY2TBLSTATE = #(YY2TBLSTATE);
const YYGLAST = #(YYGLAST);
const YYNLSTATES = #(YYNLSTATES);
const YYUNEXPECTED = #(YYUNEXPECTED);
const YYDEFAULT = #(YYDEFAULT);
// {{{ Tokens
#tokenval
const %s = %n;
#endtokenval
// }}}
/* @var array Map of token ids to their respective names */
protected static $terminals = array(
#listvar terminals
, "???"
);
/* @var array Map which translates lexer tokens to internal tokens */
protected static $translate = array(
#listvar yytranslate
);
protected static $yyaction = array(
#listvar yyaction
);
protected static $yycheck = array(
#listvar yycheck
);
protected static $yybase = array(
#listvar yybase
);
protected static $yydefault = array(
#listvar yydefault
);
protected static $yygoto = array(
#listvar yygoto
);
protected static $yygcheck = array(
#listvar yygcheck
);
protected static $yygbase = array(
#listvar yygbase
);
protected static $yygdefault = array(
#listvar yygdefault
);
protected static $yylhs = array(
#listvar yylhs
);
protected static $yylen = array(
#listvar yylen
);
protected $yyval;
protected $yyastk;
protected $stackPos;
protected $lexer;
/**
* Creates a parser instance.
*
* @param PHPParser_Lexer $lexer A lexer
*/
public function __construct(PHPParser_Lexer $lexer) {
$this->lexer = $lexer;
}
#endif
#if -t
protected static $yyproduction = array(
#production-strings;
);
protected function yyprintln($msg) {
echo $msg, "\n";
}
protected function YYTRACE_NEWSTATE($state, $tokenId) {
$this->yyprintln(
'% State ' . $state
. ', Lookahead ' . ($tokenId == self::TOKEN_NONE ? '--none--' : self::$terminals[$tokenId])
);
}
protected function YYTRACE_READ($tokenId) {
$this->yyprintln('% Reading ' . self::$terminals[$tokenId]);
}
protected function YYTRACE_SHIFT($tokenId) {
$this->yyprintln('% Shift ' . self::$terminals[$tokenId]);
}
protected function YYTRACE_ACCEPT() {
$this->yyprintln('% Accepted.');
}
protected function YYTRACE_REDUCE($n) {
$this->yyprintln('% Reduce by (' . $n . ') ' . self::$yyproduction[$n]);
}
protected function YYTRACE_POP($state) {
$this->yyprintln('% Recovering, uncovers state ' . $state);
}
protected function YYTRACE_DISCARD($tokenId) {
$this->yyprintln('% Discard ' . self::$terminals[$tokenId]);
}
#endif
/**
#ifnot -t
* Parses PHP code into a node tree.
#endif
#if -t
* Parses PHP code into a node tree and prints out debugging information.
#endif
*
* @param string $code The source code to parse
*
* @return PHPParser_Node[] Array of statements
*/
public function parse($code) {
$this->lexer->startLexing($code);
// We start off with no lookahead-token
$tokenId = self::TOKEN_NONE;
// The attributes for a node are taken from the first and last token of the node.
// From the first token only the startAttributes are taken and from the last only
// the endAttributes. Both are merged using the array union operator (+).
$startAttributes = array('startLine' => 1);
$endAttributes = array();
// In order to figure out the attributes for the starting token, we have to keep
// them in a stack
$attributeStack = array($startAttributes);
// Start off in the initial state and keep a stack of previous states
$state = 0;
$stateStack = array($state);
// AST stack (?)
$this->yyastk = array();
// Current position in the stack(s)
$this->stackPos = 0;
for (;;) {
#if -t
$this->YYTRACE_NEWSTATE($state, $tokenId);
#endif
if (self::$yybase[$state] == 0) {
$yyn = self::$yydefault[$state];
} else {
if ($tokenId === self::TOKEN_NONE) {
// Fetch the next token id from the lexer and fetch additional info by-ref.
// The end attributes are fetched into a temporary variable and only set once the token is really
// shifted (not during read). Otherwise you would sometimes get off-by-one errors, when a rule is
// reduced after a token was read but not yet shifted.
$origTokenId = $this->lexer->getNextToken($tokenValue, $startAttributes, $nextEndAttributes);
// map the lexer token id to the internally used token id's
$tokenId = $origTokenId >= 0 && $origTokenId < self::TOKEN_MAP_SIZE
? self::$translate[$origTokenId]
: self::TOKEN_INVALID;
if ($tokenId === self::TOKEN_INVALID) {
throw new RangeException(sprintf(
'The lexer returned an invalid token (id=%d, value=%s)',
$origTokenId, $tokenValue
));
}
$attributeStack[$this->stackPos] = $startAttributes;
#if -t
$this->YYTRACE_READ($tokenId);
#endif
}
if ((($yyn = self::$yybase[$state] + $tokenId) >= 0
&& $yyn < self::YYLAST && self::$yycheck[$yyn] == $tokenId
|| ($state < self::YY2TBLSTATE
&& ($yyn = self::$yybase[$state + self::YYNLSTATES] + $tokenId) >= 0
&& $yyn < self::YYLAST
&& self::$yycheck[$yyn] == $tokenId))
&& ($yyn = self::$yyaction[$yyn]) != self::YYDEFAULT) {
/*
* >= YYNLSTATE: shift and reduce
* > 0: shift
* = 0: accept
* < 0: reduce
* = -YYUNEXPECTED: error
*/
if ($yyn > 0) {
/* shift */
#if -t
$this->YYTRACE_SHIFT($tokenId);
#endif
++$this->stackPos;
$stateStack[$this->stackPos] = $state = $yyn;
$this->yyastk[$this->stackPos] = $tokenValue;
$attributeStack[$this->stackPos] = $startAttributes;
$endAttributes = $nextEndAttributes;
$tokenId = self::TOKEN_NONE;
if ($yyn < self::YYNLSTATES)
continue;
/* $yyn >= YYNLSTATES means shift-and-reduce */
$yyn -= self::YYNLSTATES;
} else {
$yyn = -$yyn;
}
} else {
$yyn = self::$yydefault[$state];
}
}
for (;;) {
/* reduce/error */
if ($yyn == 0) {
/* accept */
#if -t
$this->YYTRACE_ACCEPT();
#endif
return $this->yyval;
} elseif ($yyn != self::YYUNEXPECTED) {
/* reduce */
#if -t
$this->YYTRACE_REDUCE($yyn);
#endif
try {
$this->{'yyn' . $yyn}(
$attributeStack[$this->stackPos - self::$yylen[$yyn]]
+ $endAttributes
);
} catch (PHPParser_Error $e) {
if (-1 === $e->getRawLine()) {
$e->setRawLine($startAttributes['startLine']);
}
throw $e;
}
/* Goto - shift nonterminal */
$this->stackPos -= self::$yylen[$yyn];
$yyn = self::$yylhs[$yyn];
if (($yyp = self::$yygbase[$yyn] + $stateStack[$this->stackPos]) >= 0
&& $yyp < self::YYGLAST
&& self::$yygcheck[$yyp] == $yyn) {
$state = self::$yygoto[$yyp];
} else {
$state = self::$yygdefault[$yyn];
}
++$this->stackPos;
$stateStack[$this->stackPos] = $state;
$this->yyastk[$this->stackPos] = $this->yyval;
$attributeStack[$this->stackPos] = $startAttributes;
} else {
/* error */
$expected = array();
$base = self::$yybase[$state];
for ($i = 0; $i < self::TOKEN_MAP_SIZE; ++$i) {
$n = $base + $i;
if ($n >= 0 && $n < self::YYLAST && self::$yycheck[$n] == $i
|| $state < self::YY2TBLSTATE
&& ($n = self::$yybase[$state + self::YYNLSTATES] + $i) >= 0
&& $n < self::YYLAST && self::$yycheck[$n] == $i
) {
if (self::$yyaction[$n] != self::YYUNEXPECTED) {
if (count($expected) == 4) {
/* Too many expected tokens */
$expected = array();
break;
}
$expected[] = self::$terminals[$i];
}
}
}
$expectedString = '';
if ($expected) {
$expectedString = ', expecting ' . implode(' or ', $expected);
}
throw new PHPParser_Error(
'Syntax error, unexpected ' . self::$terminals[$tokenId] . $expectedString,
$startAttributes['startLine']
);
}
if ($state < self::YYNLSTATES)
break;
/* >= YYNLSTATES means shift-and-reduce */
$yyn = $state - self::YYNLSTATES;
}
}
}
#ifnot -t
#reduce
protected function yyn%n($attributes) {
%b
}
#noact
protected function yyn%n() {
$this->yyval = $this->yyastk[$this->stackPos];
}
#endreduce
#endif
}
#tailcode;

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vendor/nikic/php-parser/grammar/rebuildParser.php vendored Normal file
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<?php
$grammarFile = __DIR__ . '/zend_language_parser.phpy';
$skeletonFile = __DIR__ . '/kmyacc.php.parser';
$tmpGrammarFile = __DIR__ . '/tmp_parser.phpy';
$tmpResultFile = __DIR__ . '/tmp_parser.php';
$parserResultFile = __DIR__ . '/../lib/PHPParser/Parser.php';
$debugParserResultFile = __DIR__ . '/../lib/PHPParser/Parser/Debug.php';
// check for kmyacc.exe binary in this directory, otherwise fall back to global name
$kmyacc = __DIR__ . '/kmyacc.exe';
if (!file_exists($kmyacc)) {
$kmyacc = 'kmyacc';
}
$options = array_flip($argv);
$optionDebug = isset($options['--debug']);
$optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']);
///////////////////////////////
/// Utility regex constants ///
///////////////////////////////
const LIB = '(?(DEFINE)
(?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\')
(?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+")
(?<string>(?&singleQuotedString)|(?&doubleQuotedString))
(?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/)
(?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+})
)';
const PARAMS = '\[(?<params>[^[\]]*+(?:\[(?&params)\][^[\]]*+)*+)\]';
const ARGS = '\((?<args>[^()]*+(?:\((?&args)\)[^()]*+)*+)\)';
///////////////////
/// Main script ///
///////////////////
echo 'Building temporary preproprocessed grammar file.', "\n";
$grammarCode = file_get_contents($grammarFile);
$grammarCode = resolveConstants($grammarCode);
$grammarCode = resolveNodes($grammarCode);
$grammarCode = resolveMacros($grammarCode);
$grammarCode = resolveArrays($grammarCode);
file_put_contents($tmpGrammarFile, $grammarCode);
echo "Building parser.\n";
$output = trim(shell_exec("$kmyacc -l -m $skeletonFile -p PHPParser_Parser $tmpGrammarFile 2>&1"));
echo "Output: \"$output\"\n";
moveFileWithDirCheck($tmpResultFile, $parserResultFile);
if ($optionDebug) {
echo "Building debug parser.\n";
$output = trim(shell_exec("$kmyacc -t -v -l -m $skeletonFile -p PHPParser_Parser $tmpGrammarFile 2>&1"));
echo "Output: \"$output\"\n";
moveFileWithDirCheck($tmpResultFile, $debugParserResultFile);
}
if (!$optionKeepTmpGrammar) {
unlink($tmpGrammarFile);
}
///////////////////////////////
/// Preprocessing functions ///
///////////////////////////////
function resolveConstants($code) {
return preg_replace('~[A-Z][a-zA-Z_]++::~', 'PHPParser_Node_$0', $code);
}
function resolveNodes($code) {
return preg_replace_callback(
'~(?<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 PHPParser_Node_' . $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 ('error' == $name) {
assertArgs(1, $args, $name);
return 'throw new PHPParser_Error(' . $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(2, $args, $name);
return 'foreach (' . $args[0] . ' as &$s) { if (is_string($s)) { $s = PHPParser_Node_Scalar_String::parseEscapeSequences($s, ' . $args[1] . '); } }';
}
if ('parseEncapsedDoc' == $name) {
assertArgs(1, $args, $name);
return 'foreach (' . $args[0] . ' as &$s) { if (is_string($s)) { $s = PHPParser_Node_Scalar_String::parseEscapeSequences($s, null); } } $s = preg_replace(\'~(\r\n|\n|\r)$~\', \'\', $s); if (\'\' === $s) array_pop(' . $args[0] . ');';
}
throw new Exception(sprintf('Unknown macro "%s"', $name));
},
$code
);
}
function assertArgs($num, $args, $name) {
if ($num != count($args)) {
die('Wrong argument count for ' . $name . '().');
}
}
function resolveArrays($code) {
return preg_replace_callback(
'~' . PARAMS . '~',
function ($matches) {
$elements = magicSplit(
'(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,',
$matches['params']
);
// don't convert [] to array, it might have different meaning
if (empty($elements)) {
return $matches[0];
}
$elementCodes = array();
foreach ($elements as $element) {
// convert only arrays where all elements have keys
if (false === strpos($element, ':')) {
return $matches[0];
}
list($key, $value) = explode(':', $element, 2);
$elementCodes[] = "'" . $key . "' =>" . $value;
}
return 'array(' . implode(', ', $elementCodes) . ')';
},
$code
);
}
function moveFileWithDirCheck($fromPath, $toPath) {
$dir = dirname($toPath);
if (!is_dir($dir)) {
mkdir($dir, 0777, true);
}
rename($fromPath, $toPath);
}
//////////////////////////////
/// Regex helper functions ///
//////////////////////////////
function regex($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);
}
return array_filter($pieces);
}

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vendor/nikic/php-parser/grammar/zend_language_parser.phpy vendored Normal file
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%pure_parser
%expect 2
%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
%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
%left '?' ':'
%left T_BOOLEAN_OR
%left T_BOOLEAN_AND
%left '|'
%left '^'
%left '&'
%nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL
%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 '['
%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_CHARACTER
%token T_BAD_CHARACTER
%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_ENDSWITCH
%token T_CASE
%token T_DEFAULT
%token T_BREAK
%token T_CONTINUE
%token T_GOTO
%token T_FUNCTION
%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
%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_EXTENDS
%token T_IMPLEMENTS
%token T_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_COMMENT
%token T_DOC_COMMENT
%token T_OPEN_TAG
%token T_OPEN_TAG_WITH_ECHO
%token T_CLOSE_TAG
%token T_WHITESPACE
%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
%%
start:
top_statement_list { $$ = Stmt_Namespace::postprocess($1); }
;
top_statement_list:
top_statement_list top_statement { pushNormalizing($1, $2); }
| /* empty */ { init(); }
;
namespace_name:
T_STRING { init($1); }
| namespace_name T_NS_SEPARATOR T_STRING { push($1, $3); }
;
top_statement:
statement { $$ = $1; }
| function_declaration_statement { $$ = $1; }
| class_declaration_statement { $$ = $1; }
| T_HALT_COMPILER
{ $$ = Stmt_HaltCompiler[$this->lexer->handleHaltCompiler()]; }
| T_NAMESPACE namespace_name ';' { $$ = Stmt_Namespace[Name[$2], null]; }
| T_NAMESPACE namespace_name '{' top_statement_list '}' { $$ = Stmt_Namespace[Name[$2], $4]; }
| T_NAMESPACE '{' top_statement_list '}' { $$ = Stmt_Namespace[null, $3]; }
| T_USE use_declarations ';' { $$ = Stmt_Use[$2]; }
| T_CONST constant_declaration_list ';' { $$ = Stmt_Const[$2]; }
;
use_declarations:
use_declarations ',' use_declaration { push($1, $3); }
| use_declaration { init($1); }
;
use_declaration:
namespace_name { $$ = Stmt_UseUse[Name[$1], null]; }
| namespace_name T_AS T_STRING { $$ = Stmt_UseUse[Name[$1], $3]; }
| T_NS_SEPARATOR namespace_name { $$ = Stmt_UseUse[Name[$2], null]; }
| T_NS_SEPARATOR namespace_name T_AS T_STRING { $$ = Stmt_UseUse[Name[$2], $4]; }
;
constant_declaration_list:
constant_declaration_list ',' constant_declaration { push($1, $3); }
| constant_declaration { init($1); }
;
constant_declaration:
T_STRING '=' static_scalar { $$ = Const[$1, $3]; }
;
inner_statement_list:
inner_statement_list inner_statement { pushNormalizing($1, $2); }
| /* empty */ { init(); }
;
inner_statement:
statement { $$ = $1; }
| function_declaration_statement { $$ = $1; }
| class_declaration_statement { $$ = $1; }
| T_HALT_COMPILER { error('__halt_compiler() can only be used from the outermost scope'); }
;
statement:
'{' inner_statement_list '}' { $$ = $2; }
| T_IF parentheses_expr statement elseif_list else_single
{ $$ = Stmt_If[$2, [stmts: toArray($3), elseifs: $4, else: $5]]; }
| T_IF parentheses_expr ':' inner_statement_list new_elseif_list new_else_single T_ENDIF ';'
{ $$ = Stmt_If[$2, [stmts: $4, elseifs: $5, else: $6]]; }
| T_WHILE parentheses_expr while_statement { $$ = Stmt_While[$2, $3]; }
| T_DO statement T_WHILE parentheses_expr ';' { $$ = Stmt_Do [$4, toArray($2)]; }
| T_FOR '(' for_expr ';' for_expr ';' for_expr ')' for_statement
{ $$ = Stmt_For[[init: $3, cond: $5, loop: $7, stmts: $9]]; }
| T_SWITCH parentheses_expr switch_case_list { $$ = Stmt_Switch[$2, $3]; }
| T_BREAK ';' { $$ = Stmt_Break[null]; }
| T_BREAK expr ';' { $$ = Stmt_Break[$2]; }
| T_CONTINUE ';' { $$ = Stmt_Continue[null]; }
| T_CONTINUE expr ';' { $$ = Stmt_Continue[$2]; }
| T_RETURN ';' { $$ = Stmt_Return[null]; }
| T_RETURN expr ';' { $$ = Stmt_Return[$2]; }
| yield_expr ';' { $$ = $1; }
| T_GLOBAL global_var_list ';' { $$ = Stmt_Global[$2]; }
| T_STATIC static_var_list ';' { $$ = Stmt_Static[$2]; }
| T_ECHO expr_list ';' { $$ = Stmt_Echo[$2]; }
| T_INLINE_HTML { $$ = Stmt_InlineHTML[$1]; }
| expr ';' { $$ = $1; }
| T_UNSET '(' variables_list ')' ';' { $$ = Stmt_Unset[$3]; }
| T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement
{ $$ = Stmt_Foreach[$3, $5[0], [keyVar: null, byRef: $5[1], stmts: $7]]; }
| T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement
{ $$ = Stmt_Foreach[$3, $7[0], [keyVar: $5, byRef: $7[1], stmts: $9]]; }
| T_DECLARE '(' declare_list ')' declare_statement { $$ = Stmt_Declare[$3, $5]; }
| ';' { $$ = array(); /* means: no statement */ }
| T_TRY '{' inner_statement_list '}' catches optional_finally
{ $$ = Stmt_TryCatch[$3, $5, $6]; }
| T_THROW expr ';' { $$ = Stmt_Throw[$2]; }
| T_GOTO T_STRING ';' { $$ = Stmt_Goto[$2]; }
| T_STRING ':' { $$ = Stmt_Label[$1]; }
;
catches:
/* empty */ { init(); }
| catches catch { push($1, $2); }
;
catch:
T_CATCH '(' name T_VARIABLE ')' '{' inner_statement_list '}'
{ $$ = Stmt_Catch[$3, parseVar($4), $7]; }
;
optional_finally:
/* empty */ { $$ = null; }
| T_FINALLY '{' inner_statement_list '}' { $$ = $3; }
;
variables_list:
variable { init($1); }
| variables_list ',' variable { push($1, $3); }
;
optional_ref:
/* empty */ { $$ = false; }
| '&' { $$ = true; }
;
function_declaration_statement:
T_FUNCTION optional_ref T_STRING '(' parameter_list ')' '{' inner_statement_list '}'
{ $$ = Stmt_Function[$3, [byRef: $2, params: $5, stmts: $8]]; }
;
class_declaration_statement:
class_entry_type T_STRING extends_from implements_list '{' class_statement_list '}'
{ $$ = Stmt_Class[$2, [type: $1, extends: $3, implements: $4, stmts: $6]]; }
| T_INTERFACE T_STRING interface_extends_list '{' class_statement_list '}'
{ $$ = Stmt_Interface[$2, [extends: $3, stmts: $5]]; }
| T_TRAIT T_STRING '{' class_statement_list '}'
{ $$ = Stmt_Trait[$2, $4]; }
;
class_entry_type:
T_CLASS { $$ = 0; }
| T_ABSTRACT T_CLASS { $$ = Stmt_Class::MODIFIER_ABSTRACT; }
| T_FINAL T_CLASS { $$ = Stmt_Class::MODIFIER_FINAL; }
;
extends_from:
/* empty */ { $$ = null; }
| T_EXTENDS name { $$ = $2; }
;
interface_extends_list:
/* empty */ { $$ = array(); }
| T_EXTENDS name_list { $$ = $2; }
;
implements_list:
/* empty */ { $$ = array(); }
| T_IMPLEMENTS name_list { $$ = $2; }
;
name_list:
name { init($1); }
| name_list ',' name { push($1, $3); }
;
for_statement:
statement { $$ = toArray($1); }
| ':' inner_statement_list T_ENDFOR ';' { $$ = $2; }
;
foreach_statement:
statement { $$ = toArray($1); }
| ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; }
;
declare_statement:
statement { $$ = toArray($1); }
| ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; }
;
declare_list:
declare_list_element { init($1); }
| declare_list ',' declare_list_element { push($1, $3); }
;
declare_list_element:
T_STRING '=' static_scalar { $$ = Stmt_DeclareDeclare[$1, $3]; }
;
switch_case_list:
'{' case_list '}' { $$ = $2; }
| '{' ';' case_list '}' { $$ = $3; }
| ':' case_list T_ENDSWITCH ';' { $$ = $2; }
| ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; }
;
case_list:
/* empty */ { init(); }
| case_list case { push($1, $2); }
;
case:
T_CASE expr case_separator inner_statement_list { $$ = Stmt_Case[$2, $4]; }
| T_DEFAULT case_separator inner_statement_list { $$ = Stmt_Case[null, $3]; }
;
case_separator:
':'
| ';'
;
while_statement:
statement { $$ = toArray($1); }
| ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; }
;
elseif_list:
/* empty */ { init(); }
| elseif_list elseif { push($1, $2); }
;
elseif:
T_ELSEIF parentheses_expr statement { $$ = Stmt_ElseIf[$2, toArray($3)]; }
;
new_elseif_list:
/* empty */ { init(); }
| new_elseif_list new_elseif { push($1, $2); }
;
new_elseif:
T_ELSEIF parentheses_expr ':' inner_statement_list { $$ = Stmt_ElseIf[$2, $4]; }
;
else_single:
/* empty */ { $$ = null; }
| T_ELSE statement { $$ = Stmt_Else[toArray($2)]; }
;
new_else_single:
/* empty */ { $$ = null; }
| T_ELSE ':' inner_statement_list { $$ = Stmt_Else[$3]; }
;
foreach_variable:
variable { $$ = array($1, false); }
| '&' variable { $$ = array($2, true); }
| list_expr { $$ = array($1, false); }
;
parameter_list:
non_empty_parameter_list { $$ = $1; }
| /* empty */ { $$ = array(); }
;
non_empty_parameter_list:
parameter { init($1); }
| non_empty_parameter_list ',' parameter { push($1, $3); }
;
parameter:
optional_class_type optional_ref T_VARIABLE
{ $$ = Param[parseVar($3), null, $1, $2]; }
| optional_class_type optional_ref T_VARIABLE '=' static_scalar
{ $$ = Param[parseVar($3), $5, $1, $2]; }
;
optional_class_type:
/* empty */ { $$ = null; }
| name { $$ = $1; }
| T_ARRAY { $$ = 'array'; }
| T_CALLABLE { $$ = 'callable'; }
;
argument_list:
'(' ')' { $$ = array(); }
| '(' non_empty_argument_list ')' { $$ = $2; }
| '(' yield_expr ')' { $$ = array(Arg[$2, false]); }
;
non_empty_argument_list:
argument { init($1); }
| non_empty_argument_list ',' argument { push($1, $3); }
;
argument:
expr { $$ = Arg[$1, false]; }
| '&' variable { $$ = Arg[$2, true]; }
;
global_var_list:
global_var_list ',' global_var { push($1, $3); }
| global_var { init($1); }
;
global_var:
T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
| '$' variable { $$ = Expr_Variable[$2]; }
| '$' '{' expr '}' { $$ = Expr_Variable[$3]; }
;
static_var_list:
static_var_list ',' static_var { push($1, $3); }
| static_var { init($1); }
;
static_var:
T_VARIABLE { $$ = Stmt_StaticVar[parseVar($1), null]; }
| T_VARIABLE '=' static_scalar { $$ = Stmt_StaticVar[parseVar($1), $3]; }
;
class_statement_list:
class_statement_list class_statement { push($1, $2); }
| /* empty */ { init(); }
;
class_statement:
variable_modifiers property_declaration_list ';' { $$ = Stmt_Property[$1, $2]; }
| T_CONST constant_declaration_list ';' { $$ = Stmt_ClassConst[$2]; }
| method_modifiers T_FUNCTION optional_ref T_STRING '(' parameter_list ')' method_body
{ $$ = Stmt_ClassMethod[$4, [type: $1, byRef: $3, params: $6, stmts: $8]]; }
| T_USE name_list trait_adaptations { $$ = Stmt_TraitUse[$2, $3]; }
;
trait_adaptations:
';' { $$ = array(); }
| '{' trait_adaptation_list '}' { $$ = $2; }
;
trait_adaptation_list:
/* empty */ { init(); }
| trait_adaptation_list trait_adaptation { push($1, $2); }
;
trait_adaptation:
trait_method_reference_fully_qualified T_INSTEADOF name_list ';'
{ $$ = Stmt_TraitUseAdaptation_Precedence[$1[0], $1[1], $3]; }
| trait_method_reference T_AS member_modifier T_STRING ';'
{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], $3, $4]; }
| trait_method_reference T_AS member_modifier ';'
{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], $3, null]; }
| trait_method_reference T_AS T_STRING ';'
{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], null, $3]; }
;
trait_method_reference_fully_qualified:
name T_PAAMAYIM_NEKUDOTAYIM T_STRING { $$ = array($1, $3); }
;
trait_method_reference:
trait_method_reference_fully_qualified { $$ = $1; }
| T_STRING { $$ = array(null, $1); }
;
method_body:
';' /* abstract method */ { $$ = null; }
| '{' inner_statement_list '}' { $$ = $2; }
;
variable_modifiers:
non_empty_member_modifiers { $$ = $1; }
| T_VAR { $$ = Stmt_Class::MODIFIER_PUBLIC; }
;
method_modifiers:
/* empty */ { $$ = Stmt_Class::MODIFIER_PUBLIC; }
| non_empty_member_modifiers { $$ = $1; }
;
non_empty_member_modifiers:
member_modifier { $$ = $1; }
| non_empty_member_modifiers member_modifier { Stmt_Class::verifyModifier($1, $2); $$ = $1 | $2; }
;
member_modifier:
T_PUBLIC { $$ = Stmt_Class::MODIFIER_PUBLIC; }
| T_PROTECTED { $$ = Stmt_Class::MODIFIER_PROTECTED; }
| T_PRIVATE { $$ = Stmt_Class::MODIFIER_PRIVATE; }
| T_STATIC { $$ = Stmt_Class::MODIFIER_STATIC; }
| T_ABSTRACT { $$ = Stmt_Class::MODIFIER_ABSTRACT; }
| T_FINAL { $$ = Stmt_Class::MODIFIER_FINAL; }
;
property_declaration_list:
property_declaration { init($1); }
| property_declaration_list ',' property_declaration { push($1, $3); }
;
property_declaration:
T_VARIABLE { $$ = Stmt_PropertyProperty[parseVar($1), null]; }
| T_VARIABLE '=' static_scalar { $$ = Stmt_PropertyProperty[parseVar($1), $3]; }
;
expr_list:
expr_list ',' expr { push($1, $3); }
| expr { init($1); }
;
for_expr:
/* empty */ { $$ = array(); }
| expr_list { $$ = $1; }
;
expr:
variable { $$ = $1; }
| list_expr '=' expr { $$ = Expr_Assign[$1, $3]; }
| variable '=' expr { $$ = Expr_Assign[$1, $3]; }
| variable '=' '&' variable { $$ = Expr_AssignRef[$1, $4]; }
| variable '=' '&' new_expr { $$ = Expr_AssignRef[$1, $4]; }
| new_expr { $$ = $1; }
| T_CLONE expr { $$ = Expr_Clone[$2]; }
| variable T_PLUS_EQUAL expr { $$ = Expr_AssignPlus [$1, $3]; }
| variable T_MINUS_EQUAL expr { $$ = Expr_AssignMinus [$1, $3]; }
| variable T_MUL_EQUAL expr { $$ = Expr_AssignMul [$1, $3]; }
| variable T_DIV_EQUAL expr { $$ = Expr_AssignDiv [$1, $3]; }
| variable T_CONCAT_EQUAL expr { $$ = Expr_AssignConcat [$1, $3]; }
| variable T_MOD_EQUAL expr { $$ = Expr_AssignMod [$1, $3]; }
| variable T_AND_EQUAL expr { $$ = Expr_AssignBitwiseAnd[$1, $3]; }
| variable T_OR_EQUAL expr { $$ = Expr_AssignBitwiseOr [$1, $3]; }
| variable T_XOR_EQUAL expr { $$ = Expr_AssignBitwiseXor[$1, $3]; }
| variable T_SL_EQUAL expr { $$ = Expr_AssignShiftLeft [$1, $3]; }
| variable T_SR_EQUAL expr { $$ = Expr_AssignShiftRight[$1, $3]; }
| variable T_INC { $$ = Expr_PostInc[$1]; }
| T_INC variable { $$ = Expr_PreInc [$2]; }
| variable T_DEC { $$ = Expr_PostDec[$1]; }
| T_DEC variable { $$ = Expr_PreDec [$2]; }
| expr T_BOOLEAN_OR expr { $$ = Expr_BooleanOr [$1, $3]; }
| expr T_BOOLEAN_AND expr { $$ = Expr_BooleanAnd[$1, $3]; }
| expr T_LOGICAL_OR expr { $$ = Expr_LogicalOr [$1, $3]; }
| expr T_LOGICAL_AND expr { $$ = Expr_LogicalAnd[$1, $3]; }
| expr T_LOGICAL_XOR expr { $$ = Expr_LogicalXor[$1, $3]; }
| expr '|' expr { $$ = Expr_BitwiseOr [$1, $3]; }
| expr '&' expr { $$ = Expr_BitwiseAnd[$1, $3]; }
| expr '^' expr { $$ = Expr_BitwiseXor[$1, $3]; }
| expr '.' expr { $$ = Expr_Concat [$1, $3]; }
| expr '+' expr { $$ = Expr_Plus [$1, $3]; }
| expr '-' expr { $$ = Expr_Minus [$1, $3]; }
| expr '*' expr { $$ = Expr_Mul [$1, $3]; }
| expr '/' expr { $$ = Expr_Div [$1, $3]; }
| expr '%' expr { $$ = Expr_Mod [$1, $3]; }
| expr T_SL expr { $$ = Expr_ShiftLeft [$1, $3]; }
| expr T_SR expr { $$ = Expr_ShiftRight[$1, $3]; }
| '+' expr %prec T_INC { $$ = Expr_UnaryPlus [$2]; }
| '-' expr %prec T_INC { $$ = Expr_UnaryMinus[$2]; }
| '!' expr { $$ = Expr_BooleanNot[$2]; }
| '~' expr { $$ = Expr_BitwiseNot[$2]; }
| expr T_IS_IDENTICAL expr { $$ = Expr_Identical [$1, $3]; }
| expr T_IS_NOT_IDENTICAL expr { $$ = Expr_NotIdentical [$1, $3]; }
| expr T_IS_EQUAL expr { $$ = Expr_Equal [$1, $3]; }
| expr T_IS_NOT_EQUAL expr { $$ = Expr_NotEqual [$1, $3]; }
| expr '<' expr { $$ = Expr_Smaller [$1, $3]; }
| expr T_IS_SMALLER_OR_EQUAL expr { $$ = Expr_SmallerOrEqual[$1, $3]; }
| expr '>' expr { $$ = Expr_Greater [$1, $3]; }
| expr T_IS_GREATER_OR_EQUAL expr { $$ = Expr_GreaterOrEqual[$1, $3]; }
| expr T_INSTANCEOF class_name_reference { $$ = Expr_Instanceof [$1, $3]; }
| parentheses_expr { $$ = $1; }
/* we need a separate '(' new_expr ')' rule to avoid problems caused by a s/r conflict */
| '(' new_expr ')' { $$ = $2; }
| expr '?' expr ':' expr { $$ = Expr_Ternary[$1, $3, $5]; }
| expr '?' ':' expr { $$ = Expr_Ternary[$1, null, $4]; }
| T_ISSET '(' variables_list ')' { $$ = Expr_Isset[$3]; }
| T_EMPTY '(' expr ')' { $$ = Expr_Empty[$3]; }
| T_INCLUDE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_INCLUDE]; }
| T_INCLUDE_ONCE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_INCLUDE_ONCE]; }
| T_EVAL parentheses_expr { $$ = Expr_Eval[$2]; }
| T_REQUIRE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_REQUIRE]; }
| T_REQUIRE_ONCE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_REQUIRE_ONCE]; }
| T_INT_CAST expr { $$ = Expr_Cast_Int [$2]; }
| T_DOUBLE_CAST expr { $$ = Expr_Cast_Double [$2]; }
| T_STRING_CAST expr { $$ = Expr_Cast_String [$2]; }
| T_ARRAY_CAST expr { $$ = Expr_Cast_Array [$2]; }
| T_OBJECT_CAST expr { $$ = Expr_Cast_Object [$2]; }
| T_BOOL_CAST expr { $$ = Expr_Cast_Bool [$2]; }
| T_UNSET_CAST expr { $$ = Expr_Cast_Unset [$2]; }
| T_EXIT exit_expr { $$ = Expr_Exit [$2]; }
| '@' expr { $$ = Expr_ErrorSuppress[$2]; }
| scalar { $$ = $1; }
| array_expr { $$ = $1; }
| scalar_dereference { $$ = $1; }
| '`' backticks_expr '`' { $$ = Expr_ShellExec[$2]; }
| T_PRINT expr { $$ = Expr_Print[$2]; }
| T_YIELD { $$ = Expr_Yield[null, null]; }
| T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars '{' inner_statement_list '}'
{ $$ = Expr_Closure[[static: false, byRef: $2, params: $4, uses: $6, stmts: $8]]; }
| T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars '{' inner_statement_list '}'
{ $$ = Expr_Closure[[static: true, byRef: $3, params: $5, uses: $7, stmts: $9]]; }
;
parentheses_expr:
'(' expr ')' { $$ = $2; }
| '(' yield_expr ')' { $$ = $2; }
;
yield_expr:
T_YIELD expr { $$ = Expr_Yield[$2, null]; }
| T_YIELD expr T_DOUBLE_ARROW expr { $$ = Expr_Yield[$4, $2]; }
;
array_expr:
T_ARRAY '(' array_pair_list ')' { $$ = Expr_Array[$3]; }
| '[' array_pair_list ']' { $$ = Expr_Array[$2]; }
;
scalar_dereference:
array_expr '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| T_CONSTANT_ENCAPSED_STRING '[' dim_offset ']'
{ $$ = Expr_ArrayDimFetch[Scalar_String[Scalar_String::parse($1)], $3]; }
| scalar_dereference '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
/* alternative array syntax missing intentionally */
;
new_expr:
T_NEW class_name_reference ctor_arguments { $$ = Expr_New[$2, $3]; }
;
lexical_vars:
/* empty */ { $$ = array(); }
| T_USE '(' lexical_var_list ')' { $$ = $3; }
;
lexical_var_list:
lexical_var { init($1); }
| lexical_var_list ',' lexical_var { push($1, $3); }
;
lexical_var:
optional_ref T_VARIABLE { $$ = Expr_ClosureUse[parseVar($2), $1]; }
;
function_call:
name argument_list { $$ = Expr_FuncCall[$1, $2]; }
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM T_STRING argument_list
{ $$ = Expr_StaticCall[$1, $3, $4]; }
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '{' expr '}' argument_list
{ $$ = Expr_StaticCall[$1, $4, $6]; }
| static_property argument_list {
if ($1 instanceof PHPParser_Node_Expr_StaticPropertyFetch) {
$$ = Expr_StaticCall[$1->class, Expr_Variable[$1->name], $2];
} elseif ($1 instanceof PHPParser_Node_Expr_ArrayDimFetch) {
$tmp = $1;
while ($tmp->var instanceof PHPParser_Node_Expr_ArrayDimFetch) {
$tmp = $tmp->var;
}
$$ = Expr_StaticCall[$tmp->var->class, $1, $2];
$tmp->var = Expr_Variable[$tmp->var->name];
} else {
throw new Exception;
}
}
| variable_without_objects argument_list
{ $$ = Expr_FuncCall[$1, $2]; }
| function_call '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
/* alternative array syntax missing intentionally */
;
class_name:
T_STATIC { $$ = Name['static']; }
| name { $$ = $1; }
;
name:
namespace_name { $$ = Name[$1]; }
| T_NS_SEPARATOR namespace_name { $$ = Name_FullyQualified[$2]; }
| T_NAMESPACE T_NS_SEPARATOR namespace_name { $$ = Name_Relative[$3]; }
;
class_name_reference:
class_name { $$ = $1; }
| dynamic_class_name_reference { $$ = $1; }
;
dynamic_class_name_reference:
object_access_for_dcnr { $$ = $1; }
| base_variable { $$ = $1; }
;
class_name_or_var:
class_name { $$ = $1; }
| reference_variable { $$ = $1; }
;
object_access_for_dcnr:
| base_variable T_OBJECT_OPERATOR object_property
{ $$ = Expr_PropertyFetch[$1, $3]; }
| object_access_for_dcnr T_OBJECT_OPERATOR object_property
{ $$ = Expr_PropertyFetch[$1, $3]; }
| object_access_for_dcnr '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| object_access_for_dcnr '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
;
exit_expr:
/* empty */ { $$ = null; }
| '(' ')' { $$ = null; }
| parentheses_expr { $$ = $1; }
;
backticks_expr:
/* empty */ { $$ = array(); }
| T_ENCAPSED_AND_WHITESPACE { $$ = array(Scalar_String::parseEscapeSequences($1, '`')); }
| encaps_list { parseEncapsed($1, '`'); $$ = $1; }
;
ctor_arguments:
/* empty */ { $$ = array(); }
| argument_list { $$ = $1; }
;
common_scalar:
T_LNUMBER { $$ = Scalar_LNumber[Scalar_LNumber::parse($1)]; }
| T_DNUMBER { $$ = Scalar_DNumber[Scalar_DNumber::parse($1)]; }
| T_CONSTANT_ENCAPSED_STRING { $$ = Scalar_String[Scalar_String::parse($1)]; }
| T_LINE { $$ = Scalar_LineConst[]; }
| T_FILE { $$ = Scalar_FileConst[]; }
| T_DIR { $$ = Scalar_DirConst[]; }
| T_CLASS_C { $$ = Scalar_ClassConst[]; }
| T_TRAIT_C { $$ = Scalar_TraitConst[]; }
| T_METHOD_C { $$ = Scalar_MethodConst[]; }
| T_FUNC_C { $$ = Scalar_FuncConst[]; }
| T_NS_C { $$ = Scalar_NSConst[]; }
| T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC
{ $$ = Scalar_String[Scalar_String::parseDocString($1, $2)]; }
| T_START_HEREDOC T_END_HEREDOC
{ $$ = Scalar_String['']; }
| name { $$ = Expr_ConstFetch[$1]; }
;
static_scalar: /* compile-time evaluated scalars */
common_scalar { $$ = $1; }
| class_name T_PAAMAYIM_NEKUDOTAYIM class_const_name { $$ = Expr_ClassConstFetch[$1, $3]; }
| '+' static_scalar { $$ = Expr_UnaryPlus[$2]; }
| '-' static_scalar { $$ = Expr_UnaryMinus[$2]; }
| T_ARRAY '(' static_array_pair_list ')' { $$ = Expr_Array[$3]; }
| '[' static_array_pair_list ']' { $$ = Expr_Array[$2]; }
;
scalar:
common_scalar { $$ = $1; }
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM class_const_name
{ $$ = Expr_ClassConstFetch[$1, $3]; }
| '"' encaps_list '"'
{ parseEncapsed($2, '"'); $$ = Scalar_Encapsed[$2]; }
| T_START_HEREDOC encaps_list T_END_HEREDOC
{ parseEncapsedDoc($2); $$ = Scalar_Encapsed[$2]; }
;
class_const_name:
T_STRING { $$ = $1; }
| T_CLASS { $$ = 'class'; }
;
static_array_pair_list:
/* empty */ { $$ = array(); }
| non_empty_static_array_pair_list optional_comma { $$ = $1; }
;
optional_comma:
/* empty */
| ','
;
non_empty_static_array_pair_list:
non_empty_static_array_pair_list ',' static_array_pair { push($1, $3); }
| static_array_pair { init($1); }
;
static_array_pair:
static_scalar T_DOUBLE_ARROW static_scalar { $$ = Expr_ArrayItem[$3, $1, false]; }
| static_scalar { $$ = Expr_ArrayItem[$1, null, false]; }
;
variable:
object_access { $$ = $1; }
| base_variable { $$ = $1; }
| function_call { $$ = $1; }
| new_expr_array_deref { $$ = $1; }
;
new_expr_array_deref:
'(' new_expr ')' '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$2, $5]; }
| new_expr_array_deref '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
/* alternative array syntax missing intentionally */
;
object_access:
variable_or_new_expr T_OBJECT_OPERATOR object_property
{ $$ = Expr_PropertyFetch[$1, $3]; }
| variable_or_new_expr T_OBJECT_OPERATOR object_property argument_list
{ $$ = Expr_MethodCall[$1, $3, $4]; }
| object_access argument_list { $$ = Expr_FuncCall[$1, $2]; }
| object_access '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| object_access '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
;
variable_or_new_expr:
variable { $$ = $1; }
| '(' new_expr ')' { $$ = $2; }
;
variable_without_objects:
reference_variable { $$ = $1; }
| '$' variable_without_objects { $$ = Expr_Variable[$2]; }
;
base_variable:
variable_without_objects { $$ = $1; }
| static_property { $$ = $1; }
;
static_property:
class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' reference_variable
{ $$ = Expr_StaticPropertyFetch[$1, $4]; }
| static_property_with_arrays { $$ = $1; }
;
static_property_with_arrays:
class_name_or_var T_PAAMAYIM_NEKUDOTAYIM T_VARIABLE
{ $$ = Expr_StaticPropertyFetch[$1, parseVar($3)]; }
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' '{' expr '}'
{ $$ = Expr_StaticPropertyFetch[$1, $5]; }
| static_property_with_arrays '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| static_property_with_arrays '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
;
reference_variable:
reference_variable '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| reference_variable '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
| T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
| '$' '{' expr '}' { $$ = Expr_Variable[$3]; }
;
dim_offset:
/* empty */ { $$ = null; }
| expr { $$ = $1; }
;
object_property:
T_STRING { $$ = $1; }
| '{' expr '}' { $$ = $2; }
| variable_without_objects { $$ = $1; }
;
list_expr:
T_LIST '(' list_expr_elements ')' { $$ = Expr_List[$3]; }
;
list_expr_elements:
list_expr_elements ',' list_expr_element { push($1, $3); }
| list_expr_element { init($1); }
;
list_expr_element:
variable { $$ = $1; }
| list_expr { $$ = $1; }
| /* empty */ { $$ = null; }
;
array_pair_list:
/* empty */ { $$ = array(); }
| non_empty_array_pair_list optional_comma { $$ = $1; }
;
non_empty_array_pair_list:
non_empty_array_pair_list ',' array_pair { push($1, $3); }
| array_pair { init($1); }
;
array_pair:
expr T_DOUBLE_ARROW expr { $$ = Expr_ArrayItem[$3, $1, false]; }
| expr { $$ = Expr_ArrayItem[$1, null, false]; }
| expr T_DOUBLE_ARROW '&' variable { $$ = Expr_ArrayItem[$4, $1, true]; }
| '&' variable { $$ = Expr_ArrayItem[$2, null, true]; }
;
encaps_list:
encaps_list encaps_var { push($1, $2); }
| encaps_list T_ENCAPSED_AND_WHITESPACE { push($1, $2); }
| encaps_var { init($1); }
| T_ENCAPSED_AND_WHITESPACE encaps_var { init($1, $2); }
;
encaps_var:
T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
| T_VARIABLE '[' encaps_var_offset ']' { $$ = Expr_ArrayDimFetch[Expr_Variable[parseVar($1)], $3]; }
| T_VARIABLE T_OBJECT_OPERATOR T_STRING { $$ = Expr_PropertyFetch[Expr_Variable[parseVar($1)], $3]; }
| T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Expr_Variable[$2]; }
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Expr_Variable[$2]; }
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
{ $$ = Expr_ArrayDimFetch[Expr_Variable[$2], $4]; }
| T_CURLY_OPEN variable '}' { $$ = $2; }
;
encaps_var_offset:
T_STRING { $$ = Scalar_String[$1]; }
| T_NUM_STRING { $$ = Scalar_String[$1]; }
| T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
;
%%