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

... / ...

Commit	Line	Data
	1	/*
	2	* Copyright (C) 2008, 2009 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 SourceProvider_h
	30	#define SourceProvider_h
	31
	32	#include "UString.h"
	33	#include <wtf/RefCounted.h>
	34
	35	namespace JSC {
	36
	37	enum SourceBOMPresence { SourceHasNoBOMs, SourceCouldHaveBOMs };
	38
	39	class SourceProvider : public RefCounted<SourceProvider> {
	40	public:
	41	SourceProvider(const UString& url, SourceBOMPresence hasBOMs = SourceCouldHaveBOMs)
	42	: m_url(url)
	43	, m_hasBOMs(hasBOMs)
	44	{
	45	}
	46	virtual ~SourceProvider() { }
	47
	48	virtual UString getRange(int start, int end) const = 0;
	49	virtual const UChar* data() const = 0;
	50	virtual int length() const = 0;
	51
	52	const UString& url() { return m_url; }
	53	intptr_t asID() { return reinterpret_cast<intptr_t>(this); }
	54
	55	SourceBOMPresence hasBOMs() const { return m_hasBOMs; }
	56
	57	private:
	58	UString m_url;
	59	SourceBOMPresence m_hasBOMs;
	60	};
	61
	62	class UStringSourceProvider : public SourceProvider {
	63	public:
	64	static PassRefPtr<UStringSourceProvider> create(const UString& source, const UString& url)
	65	{
	66	return adoptRef(new UStringSourceProvider(source, url));
	67	}
	68
	69	UString getRange(int start, int end) const { return m_source.substr(start, end - start); }
	70	const UChar* data() const { return m_source.data(); }
	71	int length() const { return m_source.size(); }
	72
	73	private:
	74	UStringSourceProvider(const UString& source, const UString& url)
	75	: SourceProvider(url)
	76	, m_source(source)
	77	{
	78	}
	79
	80	UString m_source;
	81	};
	82
	83	} // namespace JSC
	84
	85	#endif // SourceProvider_h