1 /* 2 * Copyright (C) 2009 Google 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "config.h" 26 #include "bindings/v8/V8ThrowException.h" 27 28 #include "V8DOMException.h" 29 #include "bindings/v8/V8Binding.h" 30 #include "core/dom/DOMException.h" 31 #include "core/dom/ExceptionCode.h" 32 33 namespace WebCore { 34 35 static void domExceptionStackGetter(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info) 36 { 37 ASSERT(info.Data()->IsObject()); 38 v8SetReturnValue(info, info.Data()->ToObject()->Get(v8AtomicString(info.GetIsolate(), "stack"))); 39 } 40 41 static void domExceptionStackSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info) 42 { 43 ASSERT(info.Data()->IsObject()); 44 info.Data()->ToObject()->Set(v8AtomicString(info.GetIsolate(), "stack"), value); 45 } 46 47 v8::Handle<v8::Value> V8ThrowException::createDOMException(int ec, const String& sanitizedMessage, const String& unsanitizedMessage, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate) 48 { 49 if (ec <= 0 || v8::V8::IsExecutionTerminating()) 50 return v8Undefined(); 51 52 ASSERT(ec == SecurityError || unsanitizedMessage.isEmpty()); 53 54 // FIXME: Handle other WebIDL exception types. 55 if (ec == TypeError) 56 return V8ThrowException::createTypeError(sanitizedMessage, isolate); 57 58 RefPtr<DOMException> domException = DOMException::create(ec, sanitizedMessage, unsanitizedMessage); 59 v8::Handle<v8::Value> exception = toV8(domException, creationContext, isolate); 60 61 if (exception.IsEmpty()) 62 return v8Undefined(); 63 64 // Attach an Error object to the DOMException. This is then lazily used to get the stack value. 65 v8::Handle<v8::Value> error = v8::Exception::Error(v8String(isolate, domException->message())); 66 ASSERT(!error.IsEmpty()); 67 ASSERT(exception->IsObject()); 68 exception->ToObject()->SetAccessor(v8AtomicString(isolate, "stack"), domExceptionStackGetter, domExceptionStackSetter, error); 69 70 return exception; 71 } 72 73 v8::Handle<v8::Value> V8ThrowException::throwDOMException(int ec, const String& sanitizedMessage, const String& unsanitizedMessage, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate) 74 { 75 ASSERT(ec == SecurityError || unsanitizedMessage.isEmpty()); 76 v8::Handle<v8::Value> exception = createDOMException(ec, sanitizedMessage, unsanitizedMessage, creationContext, isolate); 77 if (exception.IsEmpty()) 78 return v8Undefined(); 79 80 return V8ThrowException::throwError(exception, isolate); 81 } 82 83 v8::Handle<v8::Value> V8ThrowException::createError(V8ErrorType type, const String& message, v8::Isolate* isolate) 84 { 85 switch (type) { 86 case v8RangeError: 87 return v8::Exception::RangeError(v8String(isolate, message)); 88 case v8ReferenceError: 89 return v8::Exception::ReferenceError(v8String(isolate, message)); 90 case v8SyntaxError: 91 return v8::Exception::SyntaxError(v8String(isolate, message)); 92 case v8TypeError: 93 return v8::Exception::TypeError(v8String(isolate, message)); 94 case v8GeneralError: 95 return v8::Exception::Error(v8String(isolate, message)); 96 default: 97 ASSERT_NOT_REACHED(); 98 return v8Undefined(); 99 } 100 } 101 102 v8::Handle<v8::Value> V8ThrowException::throwError(V8ErrorType type, const String& message, v8::Isolate* isolate) 103 { 104 v8::Handle<v8::Value> exception = V8ThrowException::createError(type, message, isolate); 105 if (exception.IsEmpty()) 106 return v8Undefined(); 107 return V8ThrowException::throwError(exception, isolate); 108 } 109 110 v8::Handle<v8::Value> V8ThrowException::createTypeError(const String& message, v8::Isolate* isolate) 111 { 112 return v8::Exception::TypeError(v8String(isolate, message.isNull() ? "Type error" : message)); 113 } 114 115 v8::Handle<v8::Value> V8ThrowException::throwTypeError(const String& message, v8::Isolate* isolate) 116 { 117 v8::Handle<v8::Value> exception = V8ThrowException::createTypeError(message, isolate); 118 return V8ThrowException::throwError(exception, isolate); 119 } 120 121 v8::Handle<v8::Value> V8ThrowException::throwError(v8::Handle<v8::Value> exception, v8::Isolate* isolate) 122 { 123 if (!v8::V8::IsExecutionTerminating()) 124 isolate->ThrowException(exception); 125 return v8::Undefined(isolate); 126 } 127 128 } // namespace WebCore 129
