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Commit	Line	Data
	1	/*
	2	* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
	3	* Copyright (C) 2008 Apple Inc. All rights reserved.
	4	*
	5	* This library is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU Lesser General Public
	7	* License as published by the Free Software Foundation; either
	8	* version 2 of the License, or (at your option) any later version.
	9	*
	10	* This library is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* Lesser General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU Lesser General Public
	16	* License along with this library; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	18	*
	19	*/
	20
	21	#ifndef ErrorInstance_h
	22	#define ErrorInstance_h
	23
	24	#include "Interpreter.h"
	25	#include "RuntimeType.h"
	26	#include "SourceProvider.h"
	27	#include <wtf/Vector.h>
	28
	29	namespace JSC {
	30
	31	class ErrorInstance : public JSNonFinalObject {
	32	public:
	33	typedef JSNonFinalObject Base;
	34
	35	enum SourceTextWhereErrorOccurred { FoundExactSource, FoundApproximateSource };
	36	typedef String (*SourceAppender) (const String& originalMessage, const String& sourceText, RuntimeType, SourceTextWhereErrorOccurred);
	37
	38	DECLARE_INFO;
	39
	40	static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
	41	{
	42	return Structure::create(vm, globalObject, prototype, TypeInfo(ErrorInstanceType, StructureFlags), info());
	43	}
	44
	45	static ErrorInstance* create(ExecState* exec, VM& vm, Structure* structure, const String& message, SourceAppender appender = nullptr, RuntimeType type = TypeNothing, bool useCurrentFrame = true)
	46	{
	47	ErrorInstance* instance = new (NotNull, allocateCell<ErrorInstance>(vm.heap)) ErrorInstance(vm, structure);
	48	instance->m_sourceAppender = appender;
	49	instance->m_runtimeTypeForCause = type;
	50	instance->finishCreation(exec, vm, message, useCurrentFrame);
	51	return instance;
	52	}
	53
	54	static ErrorInstance* create(ExecState* exec, Structure* structure, JSValue message, SourceAppender appender = nullptr, RuntimeType type = TypeNothing, bool useCurrentFrame = true)
	55	{
	56	return create(exec, exec->vm(), structure, message.isUndefined() ? String() : message.toString(exec)->value(exec), appender, type, useCurrentFrame);
	57	}
	58
	59	static void addErrorInfo(ExecState, VM&, JSObject, bool = true);
	60
	61	bool hasSourceAppender() const { return !!m_sourceAppender; }
	62	SourceAppender sourceAppender() const { return m_sourceAppender; }
	63	void setSourceAppender(SourceAppender appender) { m_sourceAppender = appender; }
	64	void clearSourceAppender() { m_sourceAppender = nullptr; }
	65	void setRuntimeTypeForCause(RuntimeType type) { m_runtimeTypeForCause = type; }
	66	RuntimeType runtimeTypeForCause() const { return m_runtimeTypeForCause; }
	67	void clearRuntimeTypeForCause() { m_runtimeTypeForCause = TypeNothing; }
	68
	69	protected:
	70	explicit ErrorInstance(VM&, Structure*);
	71
	72	void finishCreation(ExecState*, VM&, const String&, bool useCurrentFrame = true);
	73
	74	SourceAppender m_sourceAppender { nullptr };
	75	RuntimeType m_runtimeTypeForCause { TypeNothing };
	76	};
	77
	78	} // namespace JSC
	79
	80	#endif // ErrorInstance_h