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Commit	Line	Data
	1	/*
	2	* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
	3	* Copyright (C) 2001 Peter Kelly (pmk@post.com)
	4	* Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
	5	*
	6	* This library is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Library General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2 of the License, or (at your option) any later version.
	10	*
	11	* This library is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Library General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Library General Public License
	17	* along with this library; see the file COPYING.LIB. If not, write to
	18	* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	19	* Boston, MA 02110-1301, USA.
	20	*
	21	*/
	22
	23	#ifndef Parser_h
	24	#define Parser_h
	25
	26	#include "Debugger.h"
	27	#include "Executable.h"
	28	#include "JSGlobalObject.h"
	29	#include "Lexer.h"
	30	#include "Nodes.h"
	31	#include "ParserArena.h"
	32	#include "SourceProvider.h"
	33	#include <wtf/Forward.h>
	34	#include <wtf/Noncopyable.h>
	35	#include <wtf/OwnPtr.h>
	36	#include <wtf/RefPtr.h>
	37
	38	namespace JSC {
	39
	40	class FunctionBodyNode;
	41	class ProgramNode;
	42	class UString;
	43
	44	template <typename T> struct ParserArenaData : ParserArenaDeletable { T data; };
	45
	46	class Parser : public Noncopyable {
	47	public:
	48	template <class ParsedNode>
	49	PassRefPtr<ParsedNode> parse(JSGlobalData* globalData, Debugger, ExecState, const SourceCode& source, int* errLine = 0, UString* errMsg = 0);
	50
	51	void didFinishParsing(SourceElements, ParserArenaData<DeclarationStacks::VarStack>,
	52	ParserArenaData<DeclarationStacks::FunctionStack>*, CodeFeatures features, int lastLine, int numConstants);
	53
	54	ParserArena& arena() { return m_arena; }
	55
	56	private:
	57	void parse(JSGlobalData, int errLine, UString* errMsg);
	58
	59	ParserArena m_arena;
	60	const SourceCode* m_source;
	61	SourceElements* m_sourceElements;
	62	ParserArenaData<DeclarationStacks::VarStack>* m_varDeclarations;
	63	ParserArenaData<DeclarationStacks::FunctionStack>* m_funcDeclarations;
	64	CodeFeatures m_features;
	65	int m_lastLine;
	66	int m_numConstants;
	67	};
	68
	69	template <class ParsedNode>
	70	PassRefPtr<ParsedNode> Parser::parse(JSGlobalData* globalData, Debugger* debugger, ExecState* debuggerExecState, const SourceCode& source, int* errLine, UString* errMsg)
	71	{
	72	m_source = &source;
	73	if (ParsedNode::scopeIsFunction)
	74	globalData->lexer->setIsReparsing();
	75	parse(globalData, errLine, errMsg);
	76
	77	RefPtr<ParsedNode> result;
	78	if (m_sourceElements) {
	79	result = ParsedNode::create(globalData,
	80	m_sourceElements,
	81	m_varDeclarations ? &m_varDeclarations->data : 0,
	82	m_funcDeclarations ? &m_funcDeclarations->data : 0,
	83	source,
	84	m_features,
	85	m_numConstants);
	86	result->setLoc(m_source->firstLine(), m_lastLine);
	87	}
	88
	89	m_arena.reset();
	90
	91	m_source = 0;
	92	m_sourceElements = 0;
	93	m_varDeclarations = 0;
	94	m_funcDeclarations = 0;
	95
	96	if (debugger && !ParsedNode::scopeIsFunction)
	97	debugger->sourceParsed(debuggerExecState, source, errLine, errMsg);
	98	return result.release();
	99	}
	100
	101	} // namespace JSC
	102
	103	#endif // Parser_h