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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 ExceptionState_h
#define ExceptionState_h
#include "bindings/core/v8/OnStackObjectChecker.h"
#include "bindings/core/v8/ScopedPersistent.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/V8ThrowException.h"
#include "wtf/Noncopyable.h"
#include "wtf/text/WTFString.h"
#include <v8.h>
namespace blink {
typedef int ExceptionCode;
class ScriptState;
class ExceptionState {
WTF_MAKE_NONCOPYABLE(ExceptionState);
public:
enum Context {
ConstructionContext,
ExecutionContext,
DeletionContext,
GetterContext,
SetterContext,
EnumerationContext,
QueryContext,
IndexedGetterContext,
IndexedSetterContext,
IndexedDeletionContext,
UnknownContext, // FIXME: Remove this once we've flipped over to the new API.
};
ExceptionState(Context context, const char* propertyName, const char* interfaceName, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
: m_code(0)
, m_context(context)
, m_propertyName(propertyName)
, m_interfaceName(interfaceName)
, m_creationContext(creationContext)
, m_isolate(isolate) { }
ExceptionState(Context context, const char* interfaceName, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
: m_code(0)
, m_context(context)
, m_propertyName(0)
, m_interfaceName(interfaceName)
, m_creationContext(creationContext)
, m_isolate(isolate) { ASSERT(m_context == ConstructionContext || m_context == EnumerationContext || m_context == IndexedSetterContext || m_context == IndexedGetterContext || m_context == IndexedDeletionContext); }
virtual void throwDOMException(const ExceptionCode&, const String& message);
virtual void throwTypeError(const String& message);
virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String());
virtual void throwRangeError(const String& message);
bool hadException() const { return !m_exception.isEmpty() || m_code; }
void clearException();
ExceptionCode code() const { return m_code; }
const String& message() const { return m_message; }
bool throwIfNeeded()
{
if (!hadException())
return false;
throwException();
return true;
}
// This method clears out the exception which |this| has.
ScriptPromise reject(ScriptState*);
Context context() const { return m_context; }
const char* propertyName() const { return m_propertyName; }
const char* interfaceName() const { return m_interfaceName; }
void rethrowV8Exception(v8::Handle<v8::Value> value)
{
setException(value);
}
#if ENABLE(ASSERT)
OnStackObjectChecker& onStackObjectChecker() { return m_onStackObjectChecker; }
#endif
protected:
ExceptionCode m_code;
Context m_context;
String m_message;
const char* m_propertyName;
const char* m_interfaceName;
private:
void setException(v8::Handle<v8::Value>);
void throwException();
String addExceptionContext(const String&) const;
ScopedPersistent<v8::Value> m_exception;
v8::Handle<v8::Object> m_creationContext;
v8::Isolate* m_isolate;
#if ENABLE(ASSERT)
OnStackObjectChecker m_onStackObjectChecker;
#endif
};
// Used if exceptions can/should not be directly thrown.
class NonThrowableExceptionState final : public ExceptionState {
public:
NonThrowableExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), v8::Isolate::GetCurrent()) { }
virtual void throwDOMException(const ExceptionCode&, const String& message) override;
virtual void throwTypeError(const String& message = String()) override;
virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
virtual void throwRangeError(const String& message) override;
};
// Used if any exceptions thrown are ignorable.
class TrackExceptionState final : public ExceptionState {
public:
TrackExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), v8::Isolate::GetCurrent()) { }
virtual void throwDOMException(const ExceptionCode&, const String& message) override;
virtual void throwTypeError(const String& message = String()) override;
virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
virtual void throwRangeError(const String& message) override;
};
} // namespace blink
#endif // ExceptionState_h
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