JavaScriptCore-903.tar.gz

[apple/javascriptcore.git] / qt / api / qscriptfunction.cpp

diff --git a/qt/api/qscriptfunction.cpp b/qt/api/qscriptfunction.cpp
new file mode 100644 (file)
index 0000000..9fe37e6
--- /dev/null
+++ b/qt/api/qscriptfunction.cpp
@@ -0,0 +1,145 @@
+/*
+    Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+// Contains the necessary helper structures to make possible expose
+// C/C++ functions to JavaScript environment.
+
+#include "config.h"
+
+#include "qscriptfunction_p.h"
+
+static void qt_NativeFunction_finalize(JSObjectRef object)
+{
+    void* priv = JSObjectGetPrivate(object);
+    delete reinterpret_cast<QNativeFunctionData*>(priv);
+}
+
+static JSValueRef qt_NativeFunction_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
+{
+    QNativeFunctionData* data = reinterpret_cast<QNativeFunctionData*>(JSObjectGetPrivate(object));
+
+    // TODO: build a QScriptContext and use it in the native call.
+    QScriptContext* scriptContext = 0;
+    Q_UNUSED(context);
+    Q_UNUSED(thisObject);
+    Q_UNUSED(argumentCount);
+    Q_UNUSED(arguments);
+    Q_UNUSED(exception);
+
+    QScriptEnginePrivate* engine = data->engine;
+    QScriptValuePrivate* result = QScriptValuePrivate::get(data->fun(scriptContext, QScriptEnginePrivate::get(engine)));
+    if (!result->isValid()) {
+        qWarning("Invalid value returned from native function, returning undefined value instead.");
+        return engine->makeJSValue(QScriptValue::UndefinedValue);
+    }
+
+    // Make sure that the result will be assigned to the correct engine.
+    if (!result->engine()) {
+        Q_ASSERT(result->isValid());
+        result->assignEngine(engine);
+    } else if (result->engine() != engine) {
+        qWarning("Value from different engine returned from native function, returning undefined value instead.");
+        return engine->makeJSValue(QScriptValue::UndefinedValue);
+    }
+
+    return *result;
+}
+
+JSClassDefinition qt_NativeFunctionClass = {
+    0,                                     // version
+    kJSClassAttributeNoAutomaticPrototype, // attributes
+
+    "",                         // className
+    0,                          // parentClass
+
+    0,                          // staticValues
+    0,                          // staticFunctions
+
+    0,                                // initialize
+    qt_NativeFunction_finalize,       // finalize
+    0,                                // hasProperty
+    0,                                // getProperty
+    0,                                // setProperty
+    0,                                // deleteProperty
+    0,                                // getPropertyNames
+    qt_NativeFunction_callAsFunction, // callAsFunction
+    0,                                // callAsConstructor
+    0,                                // hasInstance
+    0                                 // convertToType
+};
+
+static void qt_NativeFunctionWithArg_finalize(JSObjectRef object)
+{
+    void* priv = JSObjectGetPrivate(object);
+    delete reinterpret_cast<QNativeFunctionWithArgData*>(priv);
+}
+
+static JSValueRef qt_NativeFunctionWithArg_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
+{
+    QNativeFunctionWithArgData* data = reinterpret_cast<QNativeFunctionWithArgData*>(JSObjectGetPrivate(object));
+
+    // TODO: build a QScriptContext and use it in the native call.
+    QScriptContext* scriptContext = 0;
+    Q_UNUSED(context);
+    Q_UNUSED(thisObject);
+    Q_UNUSED(argumentCount);
+    Q_UNUSED(arguments);
+    Q_UNUSED(exception);
+
+    QScriptEnginePrivate* engine = data->engine;
+    QScriptValuePrivate* result = QScriptValuePrivate::get(data->fun(scriptContext, QScriptEnginePrivate::get(engine), data->arg));
+    if (!result->isValid()) {
+        qWarning("Invalid value returned from native function, returning undefined value instead.");
+        return engine->makeJSValue(QScriptValue::UndefinedValue);
+    }
+
+    // Make sure that the result will be assigned to the correct engine.
+    if (!result->engine()) {
+        Q_ASSERT(result->isValid());
+        result->assignEngine(engine);
+    } else if (result->engine() != engine) {
+        qWarning("Value from different engine returned from native function, returning undefined value instead.");
+        return engine->makeJSValue(QScriptValue::UndefinedValue);
+    }
+
+    return *result;
+}
+
+JSClassDefinition qt_NativeFunctionWithArgClass = {
+    0,                                     // version
+    kJSClassAttributeNoAutomaticPrototype, // attributes
+
+    "",                         // className
+    0,                          // parentClass
+
+    0,                          // staticValues
+    0,                          // staticFunctions
+
+    0,                                       // initialize
+    qt_NativeFunctionWithArg_finalize,       // finalize
+    0,                                       // hasProperty
+    0,                                       // getProperty
+    0,                                       // setProperty
+    0,                                       // deleteProperty
+    0,                                       // getPropertyNames
+    qt_NativeFunctionWithArg_callAsFunction, // callAsFunction
+    0,                                       // callAsConstructor
+    0,                                       // hasInstance
+    0                                        // convertToType
+};