JavaScriptCore-7600.1.4.9.tar.gz

[apple/javascriptcore.git] / bindings / ScriptValue.cpp

diff --git a/bindings/ScriptValue.cpp b/bindings/ScriptValue.cpp
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+/*
+ * Copyright (C) 2006, 2007, 2008, 2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2011 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:
+ *
+ * 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.
+ * 3.  Neither the name of Apple Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "ScriptValue.h"
+
+#include "APICast.h"
+#include "InspectorValues.h"
+#include "JSLock.h"
+#include "StructureInlines.h"
+
+using namespace JSC;
+using namespace Inspector;
+
+namespace Deprecated {
+
+ScriptValue::~ScriptValue()
+{
+}
+
+bool ScriptValue::getString(ExecState* scriptState, String& result) const
+{
+    if (!m_value)
+        return false;
+    JSLockHolder lock(scriptState);
+    if (!m_value.get().getString(scriptState, result))
+        return false;
+    return true;
+}
+
+String ScriptValue::toString(ExecState* scriptState) const
+{
+    String result = m_value.get().toString(scriptState)->value(scriptState);
+    // Handle the case where an exception is thrown as part of invoking toString on the object.
+    if (scriptState->hadException())
+        scriptState->clearException();
+    return result;
+}
+
+bool ScriptValue::isEqual(ExecState* scriptState, const ScriptValue& anotherValue) const
+{
+    if (hasNoValue())
+        return anotherValue.hasNoValue();
+    return JSValueIsEqual(toRef(scriptState), toRef(scriptState, jsValue()), toRef(scriptState, anotherValue.jsValue()), nullptr);
+}
+
+bool ScriptValue::isNull() const
+{
+    if (!m_value)
+        return false;
+    return m_value.get().isNull();
+}
+
+bool ScriptValue::isUndefined() const
+{
+    if (!m_value)
+        return false;
+    return m_value.get().isUndefined();
+}
+
+bool ScriptValue::isObject() const
+{
+    if (!m_value)
+        return false;
+    return m_value.get().isObject();
+}
+
+bool ScriptValue::isFunction() const
+{
+    CallData callData;
+    return getCallData(m_value.get(), callData) != CallTypeNone;
+}
+
+#if ENABLE(INSPECTOR)
+static PassRefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth)
+{
+    if (!value) {
+        ASSERT_NOT_REACHED();
+        return nullptr;
+    }
+
+    if (!maxDepth)
+        return nullptr;
+
+    maxDepth--;
+
+    if (value.isNull() || value.isUndefined())
+        return InspectorValue::null();
+    if (value.isBoolean())
+        return InspectorBasicValue::create(value.asBoolean());
+    if (value.isNumber())
+        return InspectorBasicValue::create(value.asNumber());
+    if (value.isString())
+        return InspectorString::create(value.getString(scriptState));
+
+    if (value.isObject()) {
+        if (isJSArray(value)) {
+            RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
+            JSArray* array = asArray(value);
+            unsigned length = array->length();
+            for (unsigned i = 0; i < length; i++) {
+                JSValue element = array->getIndex(scriptState, i);
+                RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
+                if (!elementValue)
+                    return nullptr;
+                inspectorArray->pushValue(elementValue);
+            }
+            return inspectorArray;
+        }
+        RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
+        JSObject* object = value.getObject();
+        PropertyNameArray propertyNames(scriptState);
+        object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, ExcludeDontEnumProperties);
+        for (size_t i = 0; i < propertyNames.size(); i++) {
+            const Identifier& name = propertyNames[i];
+            JSValue propertyValue = object->get(scriptState, name);
+            RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
+            if (!inspectorValue)
+                return nullptr;
+            inspectorObject->setValue(name.string(), inspectorValue);
+        }
+        return inspectorObject;
+    }
+
+    ASSERT_NOT_REACHED();
+    return nullptr;
+}
+
+PassRefPtr<InspectorValue> ScriptValue::toInspectorValue(ExecState* scriptState) const
+{
+    JSLockHolder holder(scriptState);
+    return jsToInspectorValue(scriptState, m_value.get(), InspectorValue::maxDepth);
+}
+#endif // ENABLE(INSPECTOR)
+
+} // namespace Deprecated