| /* |
| * 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/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); |
| } |
| |
| 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; |
| }; |
| |
| // 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 |