Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 119 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/API/JSCallbackFunction.cpp b/Source/JavaScriptCore/API/JSCallbackFunction.cpp
new file mode 100644
index 000000000..3fbc00470
--- /dev/null
+++ b/Source/JavaScriptCore/API/JSCallbackFunction.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2006, 2008 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. 
+ */
+
+#include "config.h"
+#include "JSCallbackFunction.h"
+
+#include "APIShims.h"
+#include "APICast.h"
+#include "CodeBlock.h"
+#include "ExceptionHelpers.h"
+#include "JSCallbackObject.h"
+#include "JSFunction.h"
+#include "FunctionPrototype.h"
+#include <runtime/JSGlobalObject.h>
+#include <runtime/JSLock.h>
+#include <wtf/Vector.h>
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(JSCallbackFunction);
+ASSERT_HAS_TRIVIAL_DESTRUCTOR(JSCallbackFunction);
+
+const ClassInfo JSCallbackFunction::s_info = { "CallbackFunction", &InternalFunction::s_info, 0, 0, CREATE_METHOD_TABLE(JSCallbackFunction) };
+
+JSCallbackFunction::JSCallbackFunction(JSGlobalObject* globalObject, JSObjectCallAsFunctionCallback callback)
+    : InternalFunction(globalObject, globalObject->callbackFunctionStructure())
+    , m_callback(callback)
+{
+}
+
+void JSCallbackFunction::finishCreation(JSGlobalData& globalData, const Identifier& name)
+{
+    Base::finishCreation(globalData, name);
+    ASSERT(inherits(&s_info));
+}
+
+EncodedJSValue JSCallbackFunction::call(ExecState* exec)
+{
+    JSContextRef execRef = toRef(exec);
+    JSObjectRef functionRef = toRef(exec->callee());
+    JSObjectRef thisObjRef = toRef(exec->hostThisValue().toThisObject(exec));
+
+    int argumentCount = static_cast<int>(exec->argumentCount());
+    Vector<JSValueRef, 16> arguments(argumentCount);
+    for (int i = 0; i < argumentCount; i++)
+        arguments[i] = toRef(exec, exec->argument(i));
+
+    JSValueRef exception = 0;
+    JSValueRef result;
+    {
+        APICallbackShim callbackShim(exec);
+        result = static_cast<JSCallbackFunction*>(toJS(functionRef))->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception);
+    }
+    if (exception)
+        throwError(exec, toJS(exec, exception));
+
+    return JSValue::encode(toJS(exec, result));
+}
+
+CallType JSCallbackFunction::getCallData(JSCell*, CallData& callData)
+{
+    callData.native.function = call;
+    return CallTypeHost;
+}
+
+JSValueRef JSCallbackFunction::toStringCallback(JSContextRef ctx, JSObjectRef, JSObjectRef thisObject, size_t, const JSValueRef[], JSValueRef* exception)
+{
+    JSObject* object = toJS(thisObject);
+    if (object->inherits(&JSCallbackObject<JSNonFinalObject>::s_info)) {
+        for (JSClassRef jsClass = jsCast<JSCallbackObject<JSNonFinalObject>*>(object)->classRef(); jsClass; jsClass = jsClass->parentClass)
+            if (jsClass->convertToType)
+                return jsClass->convertToType(ctx, thisObject, kJSTypeString, exception);
+    } else if (object->inherits(&JSCallbackObject<JSGlobalObject>::s_info)) {
+        for (JSClassRef jsClass = jsCast<JSCallbackObject<JSGlobalObject>*>(object)->classRef(); jsClass; jsClass = jsClass->parentClass)
+            if (jsClass->convertToType)
+                return jsClass->convertToType(ctx, thisObject, kJSTypeString, exception);
+    }
+    return 0;
+}
+
+JSValueRef JSCallbackFunction::valueOfCallback(JSContextRef ctx, JSObjectRef, JSObjectRef thisObject, size_t, const JSValueRef[], JSValueRef* exception)
+{
+    JSObject* object = toJS(thisObject);
+    if (object->inherits(&JSCallbackObject<JSNonFinalObject>::s_info)) {
+        for (JSClassRef jsClass = jsCast<JSCallbackObject<JSNonFinalObject>*>(object)->classRef(); jsClass; jsClass = jsClass->parentClass)
+            if (jsClass->convertToType)
+                return jsClass->convertToType(ctx, thisObject, kJSTypeNumber, exception);
+    } else if (object->inherits(&JSCallbackObject<JSGlobalObject>::s_info)) {
+        for (JSClassRef jsClass = jsCast<JSCallbackObject<JSGlobalObject>*>(object)->classRef(); jsClass; jsClass = jsClass->parentClass)
+            if (jsClass->convertToType)
+                return jsClass->convertToType(ctx, thisObject, kJSTypeNumber, exception);
+    }
+    return 0;
+}
+
+
+} // namespace JSC