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https://github.com/darlinghq/darling-JavaScriptCore.git
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92 lines
3.7 KiB
C++
92 lines
3.7 KiB
C++
/*
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* Copyright (C) 2008, 2013, 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CallFrame.h"
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#include "DebuggerPrimitives.h"
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#include "ShadowChicken.h"
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#include "Strong.h"
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#include <wtf/NakedPtr.h>
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#include <wtf/RefCounted.h>
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#include <wtf/text/TextPosition.h>
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namespace JSC {
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class DebuggerScope;
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class Exception;
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class DebuggerCallFrame : public RefCounted<DebuggerCallFrame> {
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public:
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enum Type { ProgramType, FunctionType };
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static Ref<DebuggerCallFrame> create(VM&, CallFrame*);
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JS_EXPORT_PRIVATE RefPtr<DebuggerCallFrame> callerFrame();
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JSGlobalObject* globalObject();
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JS_EXPORT_PRIVATE SourceID sourceID() const;
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// line and column are in base 0 e.g. the first line is line 0.
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int line() const { return m_position.m_line.zeroBasedInt(); }
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int column() const { return m_position.m_column.zeroBasedInt(); }
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JS_EXPORT_PRIVATE const TextPosition& position() const { return m_position; }
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JS_EXPORT_PRIVATE JSGlobalObject* deprecatedVMEntryGlobalObject() const;
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JS_EXPORT_PRIVATE DebuggerScope* scope();
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JS_EXPORT_PRIVATE String functionName() const;
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JS_EXPORT_PRIVATE Type type() const;
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JS_EXPORT_PRIVATE JSValue thisValue(VM&) const;
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JSValue evaluateWithScopeExtension(const String&, JSObject* scopeExtensionObject, NakedPtr<Exception>&);
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bool isValid() const { return !!m_validMachineFrame || isTailDeleted(); }
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JS_EXPORT_PRIVATE void invalidate();
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// The following are only public for the Debugger's use only. They will be
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// made private soon. Other clients should not use these.
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JS_EXPORT_PRIVATE TextPosition currentPosition(VM&);
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JS_EXPORT_PRIVATE static TextPosition positionForCallFrame(VM&, CallFrame*);
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JS_EXPORT_PRIVATE static SourceID sourceIDForCallFrame(CallFrame*);
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bool isTailDeleted() const { return m_shadowChickenFrame.isTailDeleted; }
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private:
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DebuggerCallFrame(VM&, CallFrame*, const ShadowChicken::Frame&);
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CallFrame* m_validMachineFrame;
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RefPtr<DebuggerCallFrame> m_caller;
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TextPosition m_position;
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// The DebuggerPausedScope is responsible for calling invalidate() which,
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// in turn, will clear this strong ref.
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Strong<DebuggerScope> m_scope;
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ShadowChicken::Frame m_shadowChickenFrame;
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};
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} // namespace JSC
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