Changeset 15384 in webkit for trunk/JavaScriptCore/API/JSCallbackObject.cpp

Timestamp:

Jul 12, 2006, 2:55:55 AM (19 years ago)

Author:

mjs

Message:

4eviewed by Geoff.

• add handling of hasInstance callback for API objects

• API/JSCallbackObject.cpp: (KJS::JSCallbackObject::implementsHasInstance): Check if callback is present. (KJS::JSCallbackObject::hasInstance): Invoke appropriate callback.
• API/JSCallbackObject.h:
• API/JSClassRef.cpp:
• API/JSObjectRef.h:
• API/testapi.c: (MyObject_hasInstance): Test case; should match what construct would do.
• API/testapi.js:

File:

• trunk/JavaScriptCore/API/JSCallbackObject.cpp (modified) (1 diff)

trunk/JavaScriptCore/API/JSCallbackObject.cpp

@@ -236 +236 @@
 }
 
+bool JSCallbackObject::implementsHasInstance() const
+{
+    for (JSClassRef jsClass = m_class; jsClass; jsClass = jsClass->parent)
+        if (jsClass->callbacks.hasInstance)
+            return true;
+
+    return false;
+}
+
+bool JSCallbackObject::hasInstance(ExecState *exec, JSValue *value)
+{
+    JSContextRef execRef = toRef(exec);
+    JSObjectRef thisRef = toRef(this);
+
+    for (JSClassRef jsClass = m_class; jsClass; jsClass = jsClass->parent)
+        if (JSObjectHasInstanceCallback hasInstance = jsClass->callbacks.hasInstance)
+            return hasInstance(execRef, thisRef, toRef(value), toRef(exec->exceptionSlot()));
+
+    ASSERT(0); // implementsHasInstance should prevent us from reaching here
+    return 0;
+}
+
+
 bool JSCallbackObject::implementsCall() const
 {