Laravel version update
Laravel version update
This commit is contained in:
Manish Verma
@@ -1,4 +1,4 @@
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<?php
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<?php declare(strict_types=1);
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namespace PhpParser;
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@@ -6,7 +6,20 @@ namespace PhpParser;
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* This parser is based on a skeleton written by Moriyoshi Koizumi, which in
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* turn is based on work by Masato Bito.
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*/
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use PhpParser\Node\Expr;
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use PhpParser\Node\Name;
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use PhpParser\Node\Param;
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use PhpParser\Node\Scalar\LNumber;
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use PhpParser\Node\Scalar\String_;
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use PhpParser\Node\Stmt\Class_;
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use PhpParser\Node\Stmt\ClassConst;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Interface_;
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use PhpParser\Node\Stmt\Namespace_;
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use PhpParser\Node\Stmt\Property;
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use PhpParser\Node\Stmt\TryCatch;
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use PhpParser\Node\Stmt\UseUse;
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use PhpParser\Node\VarLikeIdentifier;
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abstract class ParserAbstract implements Parser
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{
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@@ -33,42 +46,45 @@ abstract class ParserAbstract implements Parser
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protected $unexpectedTokenRule;
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protected $YY2TBLSTATE;
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protected $YYNLSTATES;
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/** @var int Number of non-leaf states */
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protected $numNonLeafStates;
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/** @var array Map of lexer tokens to internal symbols */
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/** @var int[] Map of lexer tokens to internal symbols */
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protected $tokenToSymbol;
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/** @var array Map of symbols to their names */
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/** @var string[] Map of symbols to their names */
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protected $symbolToName;
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/** @var array Names of the production rules (only necessary for debugging) */
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protected $productions;
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/** @var array Map of states to a displacement into the $action table. The corresponding action for this
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/** @var int[] Map of states to a displacement into the $action table. The corresponding action for this
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* state/symbol pair is $action[$actionBase[$state] + $symbol]. If $actionBase[$state] is 0, the
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action is defaulted, i.e. $actionDefault[$state] should be used instead. */
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protected $actionBase;
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/** @var array Table of actions. Indexed according to $actionBase comment. */
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/** @var int[] Table of actions. Indexed according to $actionBase comment. */
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protected $action;
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/** @var array Table indexed analogously to $action. If $actionCheck[$actionBase[$state] + $symbol] != $symbol
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/** @var int[] Table indexed analogously to $action. If $actionCheck[$actionBase[$state] + $symbol] != $symbol
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* then the action is defaulted, i.e. $actionDefault[$state] should be used instead. */
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protected $actionCheck;
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/** @var array Map of states to their default action */
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/** @var int[] Map of states to their default action */
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protected $actionDefault;
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/** @var callable[] Semantic action callbacks */
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protected $reduceCallbacks;
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/** @var array Map of non-terminals to a displacement into the $goto table. The corresponding goto state for this
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/** @var int[] Map of non-terminals to a displacement into the $goto table. The corresponding goto state for this
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* non-terminal/state pair is $goto[$gotoBase[$nonTerminal] + $state] (unless defaulted) */
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protected $gotoBase;
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/** @var array Table of states to goto after reduction. Indexed according to $gotoBase comment. */
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/** @var int[] Table of states to goto after reduction. Indexed according to $gotoBase comment. */
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protected $goto;
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/** @var array Table indexed analogously to $goto. If $gotoCheck[$gotoBase[$nonTerminal] + $state] != $nonTerminal
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/** @var int[] Table indexed analogously to $goto. If $gotoCheck[$gotoBase[$nonTerminal] + $state] != $nonTerminal
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* then the goto state is defaulted, i.e. $gotoDefault[$nonTerminal] should be used. */
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protected $gotoCheck;
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/** @var array Map of non-terminals to the default state to goto after their reduction */
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/** @var int[] Map of non-terminals to the default state to goto after their reduction */
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protected $gotoDefault;
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/** @var array Map of rules to the non-terminal on their left-hand side, i.e. the non-terminal to use for
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/** @var int[] Map of rules to the non-terminal on their left-hand side, i.e. the non-terminal to use for
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* determining the state to goto after reduction. */
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protected $ruleToNonTerminal;
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/** @var array Map of rules to the length of their right-hand side, which is the number of elements that have to
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/** @var int[] Map of rules to the length of their right-hand side, which is the number of elements that have to
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* be popped from the stack(s) on reduction. */
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protected $ruleToLength;
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@@ -80,89 +96,106 @@ abstract class ParserAbstract implements Parser
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protected $lexer;
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/** @var mixed Temporary value containing the result of last semantic action (reduction) */
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protected $semValue;
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/** @var int Position in stacks (state stack, semantic value stack, attribute stack) */
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protected $stackPos;
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/** @var array Semantic value stack (contains values of tokens and semantic action results) */
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protected $semStack;
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/** @var array[] Start attribute stack */
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protected $startAttributeStack;
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/** @var array[] End attribute stack */
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protected $endAttributeStack;
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/** @var array End attributes of last *shifted* token */
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protected $endAttributes;
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/** @var array Start attributes of last *read* token */
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protected $lookaheadStartAttributes;
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/** @var bool Whether to throw on first error */
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protected $throwOnError;
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/** @var Error[] Errors collected during last parse */
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protected $errors;
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/** @var ErrorHandler Error handler */
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protected $errorHandler;
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/** @var int Error state, used to avoid error floods */
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protected $errorState;
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/**
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* Initialize $reduceCallbacks map.
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*/
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abstract protected function initReduceCallbacks();
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/**
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* Creates a parser instance.
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*
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* Options: Currently none.
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*
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* @param Lexer $lexer A lexer
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* @param array $options Options array. The boolean 'throwOnError' option determines whether an exception should be
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* thrown on first error, or if the parser should try to continue parsing the remaining code
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* and build a partial AST.
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* @param array $options Options array.
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*/
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public function __construct(Lexer $lexer, array $options = array()) {
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public function __construct(Lexer $lexer, array $options = []) {
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$this->lexer = $lexer;
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$this->errors = array();
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$this->throwOnError = isset($options['throwOnError']) ? $options['throwOnError'] : true;
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}
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/**
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* Get array of errors that occurred during the last parse.
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*
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* This method may only return multiple errors if the 'throwOnError' option is disabled.
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*
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* @return Error[]
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*/
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public function getErrors() {
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return $this->errors;
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if (isset($options['throwOnError'])) {
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throw new \LogicException(
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'"throwOnError" is no longer supported, use "errorHandler" instead');
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}
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$this->initReduceCallbacks();
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}
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/**
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* Parses PHP code into a node tree.
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*
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* @param string $code The source code to parse
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* If a non-throwing error handler is used, the parser will continue parsing after an error
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* occurred and attempt to build a partial AST.
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*
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* @return Node[]|null Array of statements (or null if the 'throwOnError' option is disabled and the parser was
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* unable to recover from an error).
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* @param string $code The source code to parse
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* @param ErrorHandler|null $errorHandler Error handler to use for lexer/parser errors, defaults
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* to ErrorHandler\Throwing.
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*
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* @return Node\Stmt[]|null Array of statements (or null non-throwing error handler is used and
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* the parser was unable to recover from an error).
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*/
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public function parse($code) {
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$this->lexer->startLexing($code);
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$this->errors = array();
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public function parse(string $code, ErrorHandler $errorHandler = null) {
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$this->errorHandler = $errorHandler ?: new ErrorHandler\Throwing;
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$this->lexer->startLexing($code, $this->errorHandler);
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$result = $this->doParse();
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// Clear out some of the interior state, so we don't hold onto unnecessary
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// memory between uses of the parser
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$this->startAttributeStack = [];
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$this->endAttributeStack = [];
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$this->semStack = [];
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$this->semValue = null;
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return $result;
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}
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protected function doParse() {
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// We start off with no lookahead-token
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$symbol = self::SYMBOL_NONE;
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// The attributes for a node are taken from the first and last token of the node.
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// From the first token only the startAttributes are taken and from the last only
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// the endAttributes. Both are merged using the array union operator (+).
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$startAttributes = '*POISON';
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$endAttributes = '*POISON';
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$startAttributes = [];
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$endAttributes = [];
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$this->endAttributes = $endAttributes;
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// In order to figure out the attributes for the starting token, we have to keep
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// them in a stack
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$this->startAttributeStack = array();
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// Keep stack of start and end attributes
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$this->startAttributeStack = [];
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$this->endAttributeStack = [$endAttributes];
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// Start off in the initial state and keep a stack of previous states
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$state = 0;
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$stateStack = array($state);
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$stateStack = [$state];
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// Semantic value stack (contains values of tokens and semantic action results)
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$this->semStack = array();
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$this->semStack = [];
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// Current position in the stack(s)
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$this->stackPos = 0;
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$stackPos = 0;
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$errorState = 0;
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$this->errorState = 0;
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for (;;) {
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//$this->traceNewState($state, $symbol);
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if ($this->actionBase[$state] == 0) {
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if ($this->actionBase[$state] === 0) {
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$rule = $this->actionDefault[$state];
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} else {
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if ($symbol === self::SYMBOL_NONE) {
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@@ -186,20 +219,21 @@ abstract class ParserAbstract implements Parser
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// This is necessary to assign some meaningful attributes to /* empty */ productions. They'll get
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// the attributes of the next token, even though they don't contain it themselves.
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$this->startAttributeStack[$this->stackPos+1] = $startAttributes;
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$this->startAttributeStack[$stackPos+1] = $startAttributes;
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$this->endAttributeStack[$stackPos+1] = $endAttributes;
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$this->lookaheadStartAttributes = $startAttributes;
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//$this->traceRead($symbol);
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}
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$idx = $this->actionBase[$state] + $symbol;
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if ((($idx >= 0 && $idx < $this->actionTableSize && $this->actionCheck[$idx] == $symbol)
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if ((($idx >= 0 && $idx < $this->actionTableSize && $this->actionCheck[$idx] === $symbol)
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|| ($state < $this->YY2TBLSTATE
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&& ($idx = $this->actionBase[$state + $this->YYNLSTATES] + $symbol) >= 0
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] == $symbol))
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&& ($action = $this->action[$idx]) != $this->defaultAction) {
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&& ($idx = $this->actionBase[$state + $this->numNonLeafStates] + $symbol) >= 0
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] === $symbol))
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&& ($action = $this->action[$idx]) !== $this->defaultAction) {
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/*
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* >= YYNLSTATES: shift and reduce
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* >= numNonLeafStates: shift and reduce
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* > 0: shift
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* = 0: accept
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* < 0: reduce
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@@ -209,23 +243,24 @@ abstract class ParserAbstract implements Parser
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/* shift */
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//$this->traceShift($symbol);
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++$this->stackPos;
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$stateStack[$this->stackPos] = $state = $action;
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$this->semStack[$this->stackPos] = $tokenValue;
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$this->startAttributeStack[$this->stackPos] = $startAttributes;
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++$stackPos;
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$stateStack[$stackPos] = $state = $action;
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$this->semStack[$stackPos] = $tokenValue;
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$this->startAttributeStack[$stackPos] = $startAttributes;
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$this->endAttributeStack[$stackPos] = $endAttributes;
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$this->endAttributes = $endAttributes;
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$symbol = self::SYMBOL_NONE;
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if ($errorState) {
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--$errorState;
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if ($this->errorState) {
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--$this->errorState;
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}
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if ($action < $this->YYNLSTATES) {
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if ($action < $this->numNonLeafStates) {
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continue;
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}
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/* $yyn >= YYNLSTATES means shift-and-reduce */
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$rule = $action - $this->YYNLSTATES;
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/* $yyn >= numNonLeafStates means shift-and-reduce */
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$rule = $action - $this->numNonLeafStates;
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} else {
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$rule = -$action;
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}
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@@ -244,67 +279,67 @@ abstract class ParserAbstract implements Parser
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//$this->traceReduce($rule);
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try {
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$this->{'reduceRule' . $rule}();
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$this->reduceCallbacks[$rule]($stackPos);
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} catch (Error $e) {
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if (-1 === $e->getStartLine() && isset($startAttributes['startLine'])) {
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$e->setStartLine($startAttributes['startLine']);
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}
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$this->errors[] = $e;
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if ($this->throwOnError) {
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throw $e;
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} else {
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// Currently can't recover from "special" errors
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return null;
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}
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$this->emitError($e);
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// Can't recover from this type of error
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return null;
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}
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/* Goto - shift nonterminal */
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$this->stackPos -= $this->ruleToLength[$rule];
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$lastEndAttributes = $this->endAttributeStack[$stackPos];
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$stackPos -= $this->ruleToLength[$rule];
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$nonTerminal = $this->ruleToNonTerminal[$rule];
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$idx = $this->gotoBase[$nonTerminal] + $stateStack[$this->stackPos];
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if ($idx >= 0 && $idx < $this->gotoTableSize && $this->gotoCheck[$idx] == $nonTerminal) {
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$idx = $this->gotoBase[$nonTerminal] + $stateStack[$stackPos];
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if ($idx >= 0 && $idx < $this->gotoTableSize && $this->gotoCheck[$idx] === $nonTerminal) {
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$state = $this->goto[$idx];
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} else {
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$state = $this->gotoDefault[$nonTerminal];
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}
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++$this->stackPos;
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$stateStack[$this->stackPos] = $state;
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$this->semStack[$this->stackPos] = $this->semValue;
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++$stackPos;
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$stateStack[$stackPos] = $state;
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$this->semStack[$stackPos] = $this->semValue;
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$this->endAttributeStack[$stackPos] = $lastEndAttributes;
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} else {
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/* error */
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switch ($errorState) {
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switch ($this->errorState) {
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case 0:
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$msg = $this->getErrorMessage($symbol, $state);
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$error = new Error($msg, $startAttributes + $endAttributes);
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$this->errors[] = $error;
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if ($this->throwOnError) {
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throw $error;
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}
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$this->emitError(new Error($msg, $startAttributes + $endAttributes));
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// Break missing intentionally
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case 1:
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case 2:
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$errorState = 3;
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$this->errorState = 3;
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// Pop until error-expecting state uncovered
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while (!(
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(($idx = $this->actionBase[$state] + $this->errorSymbol) >= 0
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] == $this->errorSymbol)
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] === $this->errorSymbol)
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|| ($state < $this->YY2TBLSTATE
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&& ($idx = $this->actionBase[$state + $this->YYNLSTATES] + $this->errorSymbol) >= 0
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] == $this->errorSymbol)
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) || ($action = $this->action[$idx]) == $this->defaultAction) { // Not totally sure about this
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if ($this->stackPos <= 0) {
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&& ($idx = $this->actionBase[$state + $this->numNonLeafStates] + $this->errorSymbol) >= 0
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&& $idx < $this->actionTableSize && $this->actionCheck[$idx] === $this->errorSymbol)
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) || ($action = $this->action[$idx]) === $this->defaultAction) { // Not totally sure about this
|
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if ($stackPos <= 0) {
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// Could not recover from error
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return null;
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}
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$state = $stateStack[--$this->stackPos];
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$state = $stateStack[--$stackPos];
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//$this->tracePop($state);
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}
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//$this->traceShift($this->errorSymbol);
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$stateStack[++$this->stackPos] = $state = $action;
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++$stackPos;
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$stateStack[$stackPos] = $state = $action;
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// We treat the error symbol as being empty, so we reset the end attributes
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// to the end attributes of the last non-error symbol
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$this->endAttributeStack[$stackPos] = $this->endAttributeStack[$stackPos - 1];
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$this->endAttributes = $this->endAttributeStack[$stackPos - 1];
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break;
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case 3:
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@@ -319,19 +354,31 @@ abstract class ParserAbstract implements Parser
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}
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}
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if ($state < $this->YYNLSTATES) {
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if ($state < $this->numNonLeafStates) {
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break;
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}
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|
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/* >= YYNLSTATES means shift-and-reduce */
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$rule = $state - $this->YYNLSTATES;
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/* >= numNonLeafStates means shift-and-reduce */
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$rule = $state - $this->numNonLeafStates;
|
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}
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}
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throw new \RuntimeException('Reached end of parser loop');
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}
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protected function getErrorMessage($symbol, $state) {
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protected function emitError(Error $error) {
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$this->errorHandler->handleError($error);
|
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}
|
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|
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/**
|
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* Format error message including expected tokens.
|
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*
|
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* @param int $symbol Unexpected symbol
|
||||
* @param int $state State at time of error
|
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*
|
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* @return string Formatted error message
|
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*/
|
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protected function getErrorMessage(int $symbol, int $state) : string {
|
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$expectedString = '';
|
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if ($expected = $this->getExpectedTokens($state)) {
|
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$expectedString = ', expecting ' . implode(' or ', $expected);
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@@ -340,23 +387,31 @@ abstract class ParserAbstract implements Parser
|
||||
return 'Syntax error, unexpected ' . $this->symbolToName[$symbol] . $expectedString;
|
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}
|
||||
|
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protected function getExpectedTokens($state) {
|
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$expected = array();
|
||||
/**
|
||||
* Get limited number of expected tokens in given state.
|
||||
*
|
||||
* @param int $state State
|
||||
*
|
||||
* @return string[] Expected tokens. If too many, an empty array is returned.
|
||||
*/
|
||||
protected function getExpectedTokens(int $state) : array {
|
||||
$expected = [];
|
||||
|
||||
$base = $this->actionBase[$state];
|
||||
foreach ($this->symbolToName as $symbol => $name) {
|
||||
$idx = $base + $symbol;
|
||||
if ($idx >= 0 && $idx < $this->actionTableSize && $this->actionCheck[$idx] === $symbol
|
||||
|| $state < $this->YY2TBLSTATE
|
||||
&& ($idx = $this->actionBase[$state + $this->YYNLSTATES] + $symbol) >= 0
|
||||
&& ($idx = $this->actionBase[$state + $this->numNonLeafStates] + $symbol) >= 0
|
||||
&& $idx < $this->actionTableSize && $this->actionCheck[$idx] === $symbol
|
||||
) {
|
||||
if ($this->action[$idx] != $this->unexpectedTokenRule
|
||||
&& $this->action[$idx] != $this->defaultAction
|
||||
if ($this->action[$idx] !== $this->unexpectedTokenRule
|
||||
&& $this->action[$idx] !== $this->defaultAction
|
||||
&& $symbol !== $this->errorSymbol
|
||||
) {
|
||||
if (count($expected) == 4) {
|
||||
if (count($expected) === 4) {
|
||||
/* Too many expected tokens */
|
||||
return array();
|
||||
return [];
|
||||
}
|
||||
|
||||
$expected[] = $name;
|
||||
@@ -409,10 +464,11 @@ abstract class ParserAbstract implements Parser
|
||||
/**
|
||||
* Moves statements of semicolon-style namespaces into $ns->stmts and checks various error conditions.
|
||||
*
|
||||
* @param Node[] $stmts
|
||||
* @return Node[]
|
||||
* @param Node\Stmt[] $stmts
|
||||
* @return Node\Stmt[]
|
||||
*/
|
||||
protected function handleNamespaces(array $stmts) {
|
||||
protected function handleNamespaces(array $stmts) : array {
|
||||
$hasErrored = false;
|
||||
$style = $this->getNamespacingStyle($stmts);
|
||||
if (null === $style) {
|
||||
// not namespaced, nothing to do
|
||||
@@ -423,20 +479,35 @@ abstract class ParserAbstract implements Parser
|
||||
foreach ($stmts as $stmt) {
|
||||
if ($stmt instanceof Node\Stmt\Namespace_) {
|
||||
$afterFirstNamespace = true;
|
||||
} elseif (!$stmt instanceof Node\Stmt\HaltCompiler && $afterFirstNamespace) {
|
||||
throw new Error('No code may exist outside of namespace {}', $stmt->getLine());
|
||||
} elseif (!$stmt instanceof Node\Stmt\HaltCompiler
|
||||
&& !$stmt instanceof Node\Stmt\Nop
|
||||
&& $afterFirstNamespace && !$hasErrored) {
|
||||
$this->emitError(new Error(
|
||||
'No code may exist outside of namespace {}', $stmt->getAttributes()));
|
||||
$hasErrored = true; // Avoid one error for every statement
|
||||
}
|
||||
}
|
||||
return $stmts;
|
||||
} else {
|
||||
// For semicolon namespaces we have to move the statements after a namespace declaration into ->stmts
|
||||
$resultStmts = array();
|
||||
$resultStmts = [];
|
||||
$targetStmts =& $resultStmts;
|
||||
$lastNs = null;
|
||||
foreach ($stmts as $stmt) {
|
||||
if ($stmt instanceof Node\Stmt\Namespace_) {
|
||||
$stmt->stmts = array();
|
||||
$targetStmts =& $stmt->stmts;
|
||||
$resultStmts[] = $stmt;
|
||||
if ($lastNs !== null) {
|
||||
$this->fixupNamespaceAttributes($lastNs);
|
||||
}
|
||||
if ($stmt->stmts === null) {
|
||||
$stmt->stmts = [];
|
||||
$targetStmts =& $stmt->stmts;
|
||||
$resultStmts[] = $stmt;
|
||||
} else {
|
||||
// This handles the invalid case of mixed style namespaces
|
||||
$resultStmts[] = $stmt;
|
||||
$targetStmts =& $resultStmts;
|
||||
}
|
||||
$lastNs = $stmt;
|
||||
} elseif ($stmt instanceof Node\Stmt\HaltCompiler) {
|
||||
// __halt_compiler() is not moved into the namespace
|
||||
$resultStmts[] = $stmt;
|
||||
@@ -444,10 +515,38 @@ abstract class ParserAbstract implements Parser
|
||||
$targetStmts[] = $stmt;
|
||||
}
|
||||
}
|
||||
if ($lastNs !== null) {
|
||||
$this->fixupNamespaceAttributes($lastNs);
|
||||
}
|
||||
return $resultStmts;
|
||||
}
|
||||
}
|
||||
|
||||
private function fixupNamespaceAttributes(Node\Stmt\Namespace_ $stmt) {
|
||||
// We moved the statements into the namespace node, as such the end of the namespace node
|
||||
// needs to be extended to the end of the statements.
|
||||
if (empty($stmt->stmts)) {
|
||||
return;
|
||||
}
|
||||
|
||||
// We only move the builtin end attributes here. This is the best we can do with the
|
||||
// knowledge we have.
|
||||
$endAttributes = ['endLine', 'endFilePos', 'endTokenPos'];
|
||||
$lastStmt = $stmt->stmts[count($stmt->stmts) - 1];
|
||||
foreach ($endAttributes as $endAttribute) {
|
||||
if ($lastStmt->hasAttribute($endAttribute)) {
|
||||
$stmt->setAttribute($endAttribute, $lastStmt->getAttribute($endAttribute));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Determine namespacing style (semicolon or brace)
|
||||
*
|
||||
* @param Node[] $stmts Top-level statements.
|
||||
*
|
||||
* @return null|string One of "semicolon", "brace" or null (no namespaces)
|
||||
*/
|
||||
private function getNamespacingStyle(array $stmts) {
|
||||
$style = null;
|
||||
$hasNotAllowedStmts = false;
|
||||
@@ -457,10 +556,18 @@ abstract class ParserAbstract implements Parser
|
||||
if (null === $style) {
|
||||
$style = $currentStyle;
|
||||
if ($hasNotAllowedStmts) {
|
||||
throw new Error('Namespace declaration statement has to be the very first statement in the script', $stmt->getLine());
|
||||
$this->emitError(new Error(
|
||||
'Namespace declaration statement has to be the very first statement in the script',
|
||||
$stmt->getLine() // Avoid marking the entire namespace as an error
|
||||
));
|
||||
}
|
||||
} elseif ($style !== $currentStyle) {
|
||||
throw new Error('Cannot mix bracketed namespace declarations with unbracketed namespace declarations', $stmt->getLine());
|
||||
$this->emitError(new Error(
|
||||
'Cannot mix bracketed namespace declarations with unbracketed namespace declarations',
|
||||
$stmt->getLine() // Avoid marking the entire namespace as an error
|
||||
));
|
||||
// Treat like semicolon style for namespace normalization
|
||||
return 'semicolon';
|
||||
}
|
||||
continue;
|
||||
}
|
||||
@@ -473,7 +580,7 @@ abstract class ParserAbstract implements Parser
|
||||
}
|
||||
|
||||
/* There may be a hashbang line at the very start of the file */
|
||||
if ($i == 0 && $stmt instanceof Node\Stmt\InlineHTML && preg_match('/\A#!.*\r?\n\z/', $stmt->value)) {
|
||||
if ($i === 0 && $stmt instanceof Node\Stmt\InlineHTML && preg_match('/\A#!.*\r?\n\z/', $stmt->value)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
@@ -483,19 +590,276 @@ abstract class ParserAbstract implements Parser
|
||||
return $style;
|
||||
}
|
||||
|
||||
protected function handleScalarTypes(Name $name) {
|
||||
/**
|
||||
* Fix up parsing of static property calls in PHP 5.
|
||||
*
|
||||
* In PHP 5 A::$b[c][d] and A::$b[c][d]() have very different interpretation. The former is
|
||||
* interpreted as (A::$b)[c][d], while the latter is the same as A::{$b[c][d]}(). We parse the
|
||||
* latter as the former initially and this method fixes the AST into the correct form when we
|
||||
* encounter the "()".
|
||||
*
|
||||
* @param Node\Expr\StaticPropertyFetch|Node\Expr\ArrayDimFetch $prop
|
||||
* @param Node\Arg[] $args
|
||||
* @param array $attributes
|
||||
*
|
||||
* @return Expr\StaticCall
|
||||
*/
|
||||
protected function fixupPhp5StaticPropCall($prop, array $args, array $attributes) : Expr\StaticCall {
|
||||
if ($prop instanceof Node\Expr\StaticPropertyFetch) {
|
||||
$name = $prop->name instanceof VarLikeIdentifier
|
||||
? $prop->name->toString() : $prop->name;
|
||||
$var = new Expr\Variable($name, $prop->name->getAttributes());
|
||||
return new Expr\StaticCall($prop->class, $var, $args, $attributes);
|
||||
} elseif ($prop instanceof Node\Expr\ArrayDimFetch) {
|
||||
$tmp = $prop;
|
||||
while ($tmp->var instanceof Node\Expr\ArrayDimFetch) {
|
||||
$tmp = $tmp->var;
|
||||
}
|
||||
|
||||
/** @var Expr\StaticPropertyFetch $staticProp */
|
||||
$staticProp = $tmp->var;
|
||||
|
||||
// Set start attributes to attributes of innermost node
|
||||
$tmp = $prop;
|
||||
$this->fixupStartAttributes($tmp, $staticProp->name);
|
||||
while ($tmp->var instanceof Node\Expr\ArrayDimFetch) {
|
||||
$tmp = $tmp->var;
|
||||
$this->fixupStartAttributes($tmp, $staticProp->name);
|
||||
}
|
||||
|
||||
$name = $staticProp->name instanceof VarLikeIdentifier
|
||||
? $staticProp->name->toString() : $staticProp->name;
|
||||
$tmp->var = new Expr\Variable($name, $staticProp->name->getAttributes());
|
||||
return new Expr\StaticCall($staticProp->class, $prop, $args, $attributes);
|
||||
} else {
|
||||
throw new \Exception;
|
||||
}
|
||||
}
|
||||
|
||||
protected function fixupStartAttributes(Node $to, Node $from) {
|
||||
$startAttributes = ['startLine', 'startFilePos', 'startTokenPos'];
|
||||
foreach ($startAttributes as $startAttribute) {
|
||||
if ($from->hasAttribute($startAttribute)) {
|
||||
$to->setAttribute($startAttribute, $from->getAttribute($startAttribute));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected function handleBuiltinTypes(Name $name) {
|
||||
$scalarTypes = [
|
||||
'bool' => true,
|
||||
'int' => true,
|
||||
'float' => true,
|
||||
'string' => true,
|
||||
'bool' => true,
|
||||
'int' => true,
|
||||
'float' => true,
|
||||
'string' => true,
|
||||
'iterable' => true,
|
||||
'void' => true,
|
||||
'object' => true,
|
||||
];
|
||||
|
||||
if (!$name->isUnqualified()) {
|
||||
return $name;
|
||||
}
|
||||
|
||||
$lowerName = strtolower($name->toString());
|
||||
return isset($scalarTypes[$lowerName]) ? $lowerName : $name;
|
||||
$lowerName = $name->toLowerString();
|
||||
if (!isset($scalarTypes[$lowerName])) {
|
||||
return $name;
|
||||
}
|
||||
|
||||
return new Node\Identifier($lowerName, $name->getAttributes());
|
||||
}
|
||||
|
||||
/**
|
||||
* Get combined start and end attributes at a stack location
|
||||
*
|
||||
* @param int $pos Stack location
|
||||
*
|
||||
* @return array Combined start and end attributes
|
||||
*/
|
||||
protected function getAttributesAt(int $pos) : array {
|
||||
return $this->startAttributeStack[$pos] + $this->endAttributeStack[$pos];
|
||||
}
|
||||
|
||||
protected function parseLNumber($str, $attributes, $allowInvalidOctal = false) {
|
||||
try {
|
||||
return LNumber::fromString($str, $attributes, $allowInvalidOctal);
|
||||
} catch (Error $error) {
|
||||
$this->emitError($error);
|
||||
// Use dummy value
|
||||
return new LNumber(0, $attributes);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a T_NUM_STRING token into either an integer or string node.
|
||||
*
|
||||
* @param string $str Number string
|
||||
* @param array $attributes Attributes
|
||||
*
|
||||
* @return LNumber|String_ Integer or string node.
|
||||
*/
|
||||
protected function parseNumString(string $str, array $attributes) {
|
||||
if (!preg_match('/^(?:0|-?[1-9][0-9]*)$/', $str)) {
|
||||
return new String_($str, $attributes);
|
||||
}
|
||||
|
||||
$num = +$str;
|
||||
if (!is_int($num)) {
|
||||
return new String_($str, $attributes);
|
||||
}
|
||||
|
||||
return new LNumber($num, $attributes);
|
||||
}
|
||||
|
||||
protected function checkModifier($a, $b, $modifierPos) {
|
||||
// Jumping through some hoops here because verifyModifier() is also used elsewhere
|
||||
try {
|
||||
Class_::verifyModifier($a, $b);
|
||||
} catch (Error $error) {
|
||||
$error->setAttributes($this->getAttributesAt($modifierPos));
|
||||
$this->emitError($error);
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkParam(Param $node) {
|
||||
if ($node->variadic && null !== $node->default) {
|
||||
$this->emitError(new Error(
|
||||
'Variadic parameter cannot have a default value',
|
||||
$node->default->getAttributes()
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkTryCatch(TryCatch $node) {
|
||||
if (empty($node->catches) && null === $node->finally) {
|
||||
$this->emitError(new Error(
|
||||
'Cannot use try without catch or finally', $node->getAttributes()
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkNamespace(Namespace_ $node) {
|
||||
if ($node->name && $node->name->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as namespace name', $node->name),
|
||||
$node->name->getAttributes()
|
||||
));
|
||||
}
|
||||
|
||||
if (null !== $node->stmts) {
|
||||
foreach ($node->stmts as $stmt) {
|
||||
if ($stmt instanceof Namespace_) {
|
||||
$this->emitError(new Error(
|
||||
'Namespace declarations cannot be nested', $stmt->getAttributes()
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkClass(Class_ $node, $namePos) {
|
||||
if (null !== $node->name && $node->name->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as class name as it is reserved', $node->name),
|
||||
$this->getAttributesAt($namePos)
|
||||
));
|
||||
}
|
||||
|
||||
if ($node->extends && $node->extends->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as class name as it is reserved', $node->extends),
|
||||
$node->extends->getAttributes()
|
||||
));
|
||||
}
|
||||
|
||||
foreach ($node->implements as $interface) {
|
||||
if ($interface->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as interface name as it is reserved', $interface),
|
||||
$interface->getAttributes()
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkInterface(Interface_ $node, $namePos) {
|
||||
if (null !== $node->name && $node->name->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as class name as it is reserved', $node->name),
|
||||
$this->getAttributesAt($namePos)
|
||||
));
|
||||
}
|
||||
|
||||
foreach ($node->extends as $interface) {
|
||||
if ($interface->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf('Cannot use \'%s\' as interface name as it is reserved', $interface),
|
||||
$interface->getAttributes()
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkClassMethod(ClassMethod $node, $modifierPos) {
|
||||
if ($node->flags & Class_::MODIFIER_STATIC) {
|
||||
switch ($node->name->toLowerString()) {
|
||||
case '__construct':
|
||||
$this->emitError(new Error(
|
||||
sprintf('Constructor %s() cannot be static', $node->name),
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
break;
|
||||
case '__destruct':
|
||||
$this->emitError(new Error(
|
||||
sprintf('Destructor %s() cannot be static', $node->name),
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
break;
|
||||
case '__clone':
|
||||
$this->emitError(new Error(
|
||||
sprintf('Clone method %s() cannot be static', $node->name),
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkClassConst(ClassConst $node, $modifierPos) {
|
||||
if ($node->flags & Class_::MODIFIER_STATIC) {
|
||||
$this->emitError(new Error(
|
||||
"Cannot use 'static' as constant modifier",
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
}
|
||||
if ($node->flags & Class_::MODIFIER_ABSTRACT) {
|
||||
$this->emitError(new Error(
|
||||
"Cannot use 'abstract' as constant modifier",
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
}
|
||||
if ($node->flags & Class_::MODIFIER_FINAL) {
|
||||
$this->emitError(new Error(
|
||||
"Cannot use 'final' as constant modifier",
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkProperty(Property $node, $modifierPos) {
|
||||
if ($node->flags & Class_::MODIFIER_ABSTRACT) {
|
||||
$this->emitError(new Error('Properties cannot be declared abstract',
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
}
|
||||
|
||||
if ($node->flags & Class_::MODIFIER_FINAL) {
|
||||
$this->emitError(new Error('Properties cannot be declared final',
|
||||
$this->getAttributesAt($modifierPos)));
|
||||
}
|
||||
}
|
||||
|
||||
protected function checkUseUse(UseUse $node, $namePos) {
|
||||
if ($node->alias && $node->alias->isSpecialClassName()) {
|
||||
$this->emitError(new Error(
|
||||
sprintf(
|
||||
'Cannot use %s as %s because \'%2$s\' is a special class name',
|
||||
$node->name, $node->alias
|
||||
),
|
||||
$this->getAttributesAt($namePos)
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user