/**
* This method can be used to register an existing class in the current
* class context.
*
* @param PHP_Depend_Code_Class $class The class instance.
*
* @return void
*/
public function registerClass(PHP_Depend_Code_Class $class)
{
self::$builder->restoreClass($class);
}
/**
* Parses an optional statement or returns <b>null</b>.
*
* @return PHP_Depend_Code_ASTNode
* @since 0.9.8
*/
private function _parseOptionalStatement()
{
$tokenType = $this->tokenizer->peek();
switch ($tokenType) {
case self::T_ECHO:
return $this->_parseEchoStatement();
case self::T_SWITCH:
return $this->_parseSwitchStatement();
case self::T_TRY:
return $this->_parseTryStatement();
case self::T_THROW:
return $this->_parseThrowStatement();
case self::T_IF:
return $this->_parseIfStatement();
case self::T_FOR:
return $this->_parseForStatement();
case self::T_FOREACH:
return $this->_parseForeachStatement();
case self::T_DO:
return $this->_parseDoWhileStatement();
case self::T_WHILE:
return $this->_parseWhileStatement();
case self::T_RETURN:
return $this->_parseReturnStatement();
case self::T_BREAK:
return $this->_parseBreakStatement();
case self::T_CONTINUE:
return $this->_parseContinueStatement();
case self::T_GOTO:
return $this->_parseGotoStatement();
case self::T_GLOBAL:
return $this->_parseGlobalStatement();
case self::T_UNSET:
return $this->_parseUnsetStatement();
case self::T_STRING:
if ($this->tokenizer->peekNext() === self::T_COLON) {
return $this->_parseLabelStatement();
}
break;
case self::T_CONST:
return $this->_parseConstantDefinition();
case self::T_FUNCTION:
return $this->_parseFunctionOrClosureDeclaration();
case self::T_COMMENT:
return $this->_parseCommentWithOptionalInlineClassOrInterfaceReference();
case self::T_DOC_COMMENT:
return $this->builder->buildASTComment($this->consumeToken(self::T_DOC_COMMENT)->image);
case self::T_CURLY_BRACE_OPEN:
return $this->_parseRegularScope();
case self::T_DECLARE:
return $this->_parseDeclareStatement();
case self::T_ELSE:
case self::T_ENDIF:
case self::T_ELSEIF:
case self::T_ENDFOR:
case self::T_ENDWHILE:
case self::T_ENDSWITCH:
case self::T_ENDDECLARE:
case self::T_ENDFOREACH:
case self::T_CURLY_BRACE_CLOSE:
return null;
case self::T_DECLARE:
return $this->_parseDeclareStatement();
case self::T_CLOSE_TAG:
if (($tokenType = $this->_parseNonePhpCode()) === self::T_EOF) {
return null;
}
return $this->_parseOptionalStatement();
case self::T_TRAIT:
$package = $this->_getNamespaceOrPackage();
$package->addType($trait = $this->_parseTraitDeclaration());
$this->builder->restoreTrait($trait);
$this->_sourceFile->addChild($trait);
return $trait;
case self::T_INTERFACE:
$package = $this->_getNamespaceOrPackage();
$package->addType($interface = $this->_parseInterfaceDeclaration());
$this->builder->restoreInterface($interface);
$this->_sourceFile->addChild($interface);
return $interface;
case self::T_CLASS:
case self::T_FINAL:
case self::T_ABSTRACT:
$package = $this->_getNamespaceOrPackage();
$package->addType($class = $this->_parseClassDeclaration());
$this->builder->restoreClass($class);
$this->_sourceFile->addChild($class);
return $class;
}
$this->_tokenStack->push();
$stmt = $this->builder->buildASTStatement();
if (($expr = $this->_parseOptionalExpression()) != null) {
$stmt->addChild($expr);
}
$this->_parseStatementTermination();
return $this->_setNodePositionsAndReturn($stmt);
}
/**
* Parses the contents of the tokenizer and generates a node tree based on
* the found tokens.
*
* @return void
*/
public function parse()
{
// Get currently parsed source file
$this->_sourceFile = $this->tokenizer->getSourceFile();
$this->_sourceFile->setCache($this->cache)->setUUID($this->_uuidBuilder->forFile($this->_sourceFile));
$hash = md5_file($this->_sourceFile->getFileName());
if ($this->cache->restore($this->_sourceFile->getUUID(), $hash)) {
return;
}
$this->cache->remove($this->_sourceFile->getUUID());
$this->setUpEnvironment();
$this->_tokenStack->push();
// Debug currently parsed source file.
PHP_Depend_Util_Log::debug('Processing file ' . $this->_sourceFile);
$tokenType = $this->tokenizer->peek();
while ($tokenType !== self::T_EOF) {
switch ($tokenType) {
case self::T_COMMENT:
$this->consumeToken(self::T_COMMENT);
break;
case self::T_DOC_COMMENT:
$comment = $this->consumeToken(self::T_DOC_COMMENT)->image;
$this->_packageName = $this->_parsePackageAnnotation($comment);
$this->_docComment = $comment;
break;
case self::T_INTERFACE:
$package = $this->_builder->buildPackage($this->_getNamespaceOrPackageName());
$package->addType($interface = $this->_parseInterfaceDeclaration());
$this->_builder->restoreInterface($interface);
$this->_sourceFile->addChild($interface);
break;
case self::T_CLASS:
case self::T_FINAL:
case self::T_ABSTRACT:
$package = $this->_builder->buildPackage($this->_getNamespaceOrPackageName());
$package->addType($class = $this->_parseClassDeclaration());
$this->_builder->restoreClass($class);
$this->_sourceFile->addChild($class);
break;
case self::T_FUNCTION:
$callable = $this->_parseFunctionOrClosureDeclaration();
$this->_sourceFile->addChild($callable);
break;
case self::T_USE:
// Parse a use statement. This method has no return value but it
// creates a new entry in the symbol map.
$this->_parseUseDeclarations();
break;
case self::T_NAMESPACE:
$this->_parseNamespaceDeclaration();
break;
default:
// Consume whatever token
$this->consumeToken($tokenType);
$this->reset();
break;
}
$tokenType = $this->tokenizer->peek();
}
$this->_sourceFile->setTokens($this->_tokenStack->pop());
$this->cache->store($this->_sourceFile->getUUID(), $this->_sourceFile, $hash);
$this->tearDownEnvironment();
}