[apple/javascriptcore.git] / parser / SourceProviderCacheItem.h

/*
 * Copyright (C) 2011 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef SourceProviderCacheItem_h
#define SourceProviderCacheItem_h

#include "ParserTokens.h"
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>

namespace JSC {

class SourceProviderCacheItem {
public:
    SourceProviderCacheItem(int closeBraceLine, int closeBracePos)
        : closeBraceLine(closeBraceLine) 
        , closeBracePos(closeBracePos)
    {
    }
    unsigned approximateByteSize() const
    {
        // The identifiers are uniqued strings so most likely there are few names that actually use any additional memory.
        static const unsigned assummedAverageIdentifierSize = sizeof(RefPtr<StringImpl>) + 2;
        unsigned size = sizeof(*this);
        size += usedVariables.size() * assummedAverageIdentifierSize;
        size += writtenVariables.size() * assummedAverageIdentifierSize;
        return size;
    }
    JSToken closeBraceToken() const 
    {
        JSToken token;
        token.m_type = CLOSEBRACE;
        token.m_data.intValue = closeBracePos;
        token.m_info.startOffset = closeBracePos;
        token.m_info.endOffset = closeBracePos + 1;
        token.m_info.line = closeBraceLine; 
        return token;
    }
    
    int closeBraceLine;
    int closeBracePos;
    bool usesEval;
    bool strictMode;
    bool needsFullActivation;
    Vector<RefPtr<StringImpl> > usedVariables;
    Vector<RefPtr<StringImpl> > writtenVariables;
};

}

#endif // SourceProviderCacheItem_h
Commit	Line	Data
14957cd0 A	1	/*
	2	* Copyright (C) 2011 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	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	14	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	15	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	17	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	18	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	19	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	20	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	21	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	22	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	23	* THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
6fe7ccc8 A	26	#ifndef SourceProviderCacheItem_h
	27	#define SourceProviderCacheItem_h
	28
	29	#include "ParserTokens.h"
14957cd0 A	30	#include <wtf/Vector.h>
	31	#include <wtf/text/WTFString.h>
	32
	33	namespace JSC {
	34
	35	class SourceProviderCacheItem {
	36	public:
	37	SourceProviderCacheItem(int closeBraceLine, int closeBracePos)
	38	: closeBraceLine(closeBraceLine)
	39	, closeBracePos(closeBracePos)
	40	{
	41	}
	42	unsigned approximateByteSize() const
	43	{
	44	// The identifiers are uniqued strings so most likely there are few names that actually use any additional memory.
	45	static const unsigned assummedAverageIdentifierSize = sizeof(RefPtr<StringImpl>) + 2;
	46	unsigned size = sizeof(*this);
	47	size += usedVariables.size() * assummedAverageIdentifierSize;
	48	size += writtenVariables.size() * assummedAverageIdentifierSize;
	49	return size;
	50	}
	51	JSToken closeBraceToken() const
	52	{
	53	JSToken token;
	54	token.m_type = CLOSEBRACE;
	55	token.m_data.intValue = closeBracePos;
	56	token.m_info.startOffset = closeBracePos;
	57	token.m_info.endOffset = closeBracePos + 1;
	58	token.m_info.line = closeBraceLine;
	59	return token;
	60	}
	61
	62	int closeBraceLine;
	63	int closeBracePos;
	64	bool usesEval;
6fe7ccc8 A	65	bool strictMode;
6fe7ccc8 A	66	bool needsFullActivation;
14957cd0 A	67	Vector<RefPtr<StringImpl> > usedVariables;
	68	Vector<RefPtr<StringImpl> > writtenVariables;
	69	};
	70
	71	}
6fe7ccc8 A	72
6fe7ccc8 A	73	#endif // SourceProviderCacheItem_h