git.saurik.com Git - apple/javascriptcore.git/blame_incremental

... / ...

Commit	Line	Data
	1	/*
	2	* Copyright (C) 2008 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	*
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
	14	* its contributors may be used to endorse or promote products derived
	15	* from this software without specific prior written permission.
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
	18	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	19	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	20	* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	21	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	22	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	23	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	24	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	27	*/
	28
	29	#ifndef SourceCode_h
	30	#define SourceCode_h
	31
	32	#include "SourceProvider.h"
	33	#include <wtf/RefPtr.h>
	34
	35	namespace JSC {
	36
	37	class SourceCode {
	38	public:
	39	SourceCode()
	40	: m_provider(0)
	41	, m_startChar(0)
	42	, m_endChar(0)
	43	, m_firstLine(0)
	44	, m_startColumn(0)
	45	{
	46	}
	47
	48	SourceCode(WTF::HashTableDeletedValueType)
	49	: m_provider(WTF::HashTableDeletedValue)
	50	{
	51	}
	52
	53	SourceCode(PassRefPtr<SourceProvider> provider)
	54	: m_provider(provider)
	55	, m_startChar(0)
	56	, m_endChar(m_provider->source().length())
	57	, m_firstLine(1)
	58	, m_startColumn(1)
	59	{
	60	}
	61
	62	SourceCode(PassRefPtr<SourceProvider> provider, int firstLine, int startColumn)
	63	: m_provider(provider)
	64	, m_startChar(0)
	65	, m_endChar(m_provider->source().length())
	66	, m_firstLine(std::max(firstLine, 1))
	67	, m_startColumn(std::max(startColumn, 1))
	68	{
	69	}
	70
	71	SourceCode(PassRefPtr<SourceProvider> provider, int start, int end, int firstLine, int startColumn)
	72	: m_provider(provider)
	73	, m_startChar(start)
	74	, m_endChar(end)
	75	, m_firstLine(std::max(firstLine, 1))
	76	, m_startColumn(std::max(startColumn, 1))
	77	{
	78	}
	79
	80	bool isHashTableDeletedValue() const { return m_provider.isHashTableDeletedValue(); }
	81
	82	String toString() const
	83	{
	84	if (!m_provider)
	85	return String();
	86	return m_provider->getRange(m_startChar, m_endChar);
	87	}
	88
	89	intptr_t providerID() const
	90	{
	91	if (!m_provider)
	92	return SourceProvider::nullID;
	93	return m_provider->asID();
	94	}
	95
	96	bool isNull() const { return !m_provider; }
	97	SourceProvider* provider() const { return m_provider.get(); }
	98	int firstLine() const { return m_firstLine; }
	99	int startColumn() const { return m_startColumn; }
	100	int startOffset() const { return m_startChar; }
	101	int endOffset() const { return m_endChar; }
	102	int length() const { return m_endChar - m_startChar; }
	103
	104	SourceCode subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn);
	105
	106	private:
	107	RefPtr<SourceProvider> m_provider;
	108	int m_startChar;
	109	int m_endChar;
	110	int m_firstLine;
	111	int m_startColumn;
	112	};
	113
	114	inline SourceCode makeSource(const String& source, const String& url = String(), const TextPosition& startPosition = TextPosition::minimumPosition())
	115	{
	116	return SourceCode(StringSourceProvider::create(source, url, startPosition), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
	117	}
	118
	119	inline SourceCode SourceCode::subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn)
	120	{
	121	ASSERT(provider()->source()[openBrace] == '{');
	122	ASSERT(provider()->source()[closeBrace] == '}');
	123	startColumn += 1; // Convert to base 1.
	124	return SourceCode(provider(), openBrace, closeBrace + 1, firstLine, startColumn);
	125	}
	126
	127	} // namespace JSC
	128
	129	#endif // SourceCode_h