JSBool XPCDispInterface::Member::GetValue(XPCCallContext& ccx, XPCNativeInterface * iface, jsval * retval) const { // This is a method or attribute - we'll be needing a function object // We need to use the safe context for this thread because we don't want // to parent the new (and cached forever!) function object to the current // JSContext's global object. That would be bad! if((mType & RESOLVED) == 0) { JSContext* cx = ccx.GetSafeJSContext(); if(!cx) return JS_FALSE; intN argc; JSNative callback; // Is this a function or a parameterized getter/setter if(IsFunction() || IsParameterizedProperty()) { argc = GetParamCount(); callback = XPC_IDispatch_CallMethod; } else { argc = 0; callback = XPC_IDispatch_GetterSetter; } JSFunction *fun = JS_NewFunctionById(cx, callback, argc, 0, nsnull, mName); if(!fun) return JS_FALSE; JSObject* funobj = JS_GetFunctionObject(fun); if(!funobj) return JS_FALSE; // Store ourselves and our native interface within the JSObject if(!JS_SetReservedSlot(ccx, funobj, 0, PRIVATE_TO_JSVAL((void *) this))) return JS_FALSE; if(!JS_SetReservedSlot(ccx, funobj, 1, PRIVATE_TO_JSVAL(iface))) return JS_FALSE; { // scoped lock XPCAutoLock lock(ccx.GetRuntime()->GetMapLock()); const_cast<Member*>(this)->mVal = OBJECT_TO_JSVAL(funobj); const_cast<Member*>(this)->mType |= RESOLVED; } } *retval = mVal; return JS_TRUE; }
JSBool XPCNativeMember::Resolve(XPCCallContext& ccx, XPCNativeInterface* iface, JSObject *parent, jsval *vp) { if(IsConstant()) { const nsXPTConstant* constant; if(NS_FAILED(iface->GetInterfaceInfo()->GetConstant(mIndex, &constant))) return JS_FALSE; const nsXPTCMiniVariant& mv = *constant->GetValue(); // XXX Big Hack! nsXPTCVariant v; v.flags = 0; v.type = constant->GetType(); memcpy(&v.val, &mv.val, sizeof(mv.val)); jsval resultVal; if(!XPCConvert::NativeData2JS(ccx, &resultVal, &v.val, v.type, nsnull, nsnull)) return JS_FALSE; *vp = resultVal; return JS_TRUE; } // else... // This is a method or attribute - we'll be needing a function object intN argc; JSNative callback; if(IsMethod()) { const nsXPTMethodInfo* info; if(NS_FAILED(iface->GetInterfaceInfo()->GetMethodInfo(mIndex, &info))) return JS_FALSE; // Note: ASSUMES that retval is last arg. argc = (intN) info->GetParamCount(); if(argc && info->GetParam((uint8)(argc-1)).IsRetval()) argc-- ; callback = XPC_WN_CallMethod; } else { argc = 0; callback = XPC_WN_GetterSetter; } JSFunction *fun = JS_NewFunctionById(ccx, callback, argc, 0, parent, GetName()); if(!fun) return JS_FALSE; JSObject* funobj = JS_GetFunctionObject(fun); if(!funobj) return JS_FALSE; if(!JS_SetReservedSlot(ccx, funobj, 0, PRIVATE_TO_JSVAL(iface))|| !JS_SetReservedSlot(ccx, funobj, 1, PRIVATE_TO_JSVAL(this))) return JS_FALSE; *vp = OBJECT_TO_JSVAL(funobj); return JS_TRUE; }