Examples with Property com.github.anba.es6draft.runtime.types.Property used on opensource projects

Example 71 with Property

use of com.github.anba.es6draft.runtime.types.Property in project es6draft by anba.

the class Properties method createAccessor.

private static void createAccessor(Realm realm, OrdinaryObject target, AccessorLayout layout) {
    int arity = accessorArity(layout.type);
    NativeFunction fun = new NativeFunction(realm, layout.accessorName, arity, layout.nativeId, layout.methodHandle);
    Property accessorProperty = lookupOwnProperty(target, layout);
    if (accessorProperty == null) {
        defineProperty(target, layout, accessorProperty(layout, fun));
    } else {
        assert accessorProperty.isAccessorDescriptor();
        assert accessorProperty.isConfigurable() == layout.configurable();
        assert accessorProperty.isEnumerable() == layout.enumerable();
        assert (layout.type == Accessor.Type.Getter ? accessorProperty.getGetter() : accessorProperty.getSetter()) == null;
        accessorProperty.apply(accessorPropertyDescriptor(layout, fun));
    }
}

Example 72 with Property

use of com.github.anba.es6draft.runtime.types.Property in project es6draft by anba.

the class ClassOperations method DefineField.

public static void DefineField(Object fieldName, Object initValue, ExecutionContext cx) {
    EnvironmentRecord envRec = cx.getThisEnvironment();
    assert envRec instanceof FunctionEnvironmentRecord;
    FunctionEnvironmentRecord fEnvRec = (FunctionEnvironmentRecord) envRec;
    assert fEnvRec.getThisBindingStatus() == FunctionEnvironmentRecord.ThisBindingStatus.Initialized;
    assert fEnvRec.getThisValue() instanceof ScriptObject;
    ScriptObject receiver = (ScriptObject) fEnvRec.getThisValue();
    if (fieldName instanceof PrivateName) {
        PrivateName name = (PrivateName) fieldName;
        Property desc = new Property(initValue, true, false, false);
        privateFieldDefine(cx, receiver, name, desc);
    } else {
        assert IsPropertyKey(fieldName);
        CreateDataPropertyOrThrow(cx, receiver, fieldName, initValue);
    }
}

Example 73 with Property

use of com.github.anba.es6draft.runtime.types.Property in project es6draft by anba.

the class ClassOperations method InitializeInstanceFields.

public static void InitializeInstanceFields(ScriptObject thisValue, OrdinaryConstructorFunction constructor, ExecutionContext cx) {
    Property initializerDesc = constructor.get(CLASS_INSTANCE_INITIALIZER);
    if (initializerDesc != null) {
        assert initializerDesc.isDataDescriptor();
        Object initializer = initializerDesc.getValue();
        assert initializer instanceof OrdinaryFunction;
        OrdinaryFunction initializerFn = (OrdinaryFunction) initializer;
        Property instanceMethods = initializerFn.get(INSTANCE_METHODS);
        assert instanceMethods != null && instanceMethods.isDataDescriptor();
        if (instanceMethods.getValue() != null) {
            initializeInstanceMethods(thisValue, arrayValue(instanceMethods, InstanceMethod[].class), cx);
        }
        // Call the instance fields initializer.
        Property classFields = initializerFn.get(CLASS_FIELDS);
        assert classFields != null && classFields.isDataDescriptor();
        if (classFields.getValue() != null) {
            initializerFn.call(cx, thisValue);
        }
    }
}

Example 74 with Property

use of com.github.anba.es6draft.runtime.types.Property in project es6draft by anba.

the class Realm method SetDefaultGlobalBindings.

/**
 * 8.2.4 SetDefaultGlobalBindings ( realmRec )
 * <p>
 * Initializes {@code [[globalObject]]} with the default properties of the Global Object.
 *
 * @param cx
 *            the execution context
 * @param realm
 *            the realm instance
 * @return the global object
 */
public static ScriptObject SetDefaultGlobalBindings(ExecutionContext cx, Realm realm) {
    /* step 1 */
    ScriptObject globalObject = realm.getGlobalObject();
    OrdinaryObject globalProperties = realm.getGlobalPropertiesObject();
    assert globalObject != null && globalProperties != null;
    /* step 2 */
    for (Object key : globalProperties.ownPropertyKeys(cx)) {
        Property prop = globalProperties.getOwnProperty(cx, key);
        if (prop != null) {
            PropertyDescriptor desc = prop.toPropertyDescriptor();
            DefinePropertyOrThrow(cx, globalObject, key, desc);
        }
    }
    /* step 3 */
    return globalObject;
}

Example 75 with Property

use of com.github.anba.es6draft.runtime.types.Property in project es6draft by anba.

the class WrapperProxy method set.

@Override
public boolean set(ExecutionContext cx, Symbol propertyKey, Object value, Object receiver) {
    Property ownDesc = proxyTarget.getOwnProperty(cx, propertyKey);
    if (ownDesc == null) {
        ScriptObject parent = getPrototypeOf(cx);
        if (parent != null) {
            return parent.set(cx, propertyKey, value, receiver);
        } else {
            ownDesc = new Property(UNDEFINED, true, true, true);
        }
    }
    if (ownDesc.isDataDescriptor()) {
        if (!ownDesc.isWritable()) {
            return false;
        }
        if (!Type.isObject(receiver)) {
            return false;
        }
        ScriptObject _receiver = Type.objectValue(receiver);
        Property existingDescriptor = _receiver.getOwnProperty(cx, propertyKey);
        if (existingDescriptor != null) {
            PropertyDescriptor valueDesc = new PropertyDescriptor(value);
            return _receiver.defineOwnProperty(cx, propertyKey, valueDesc);
        } else {
            return CreateDataProperty(cx, _receiver, propertyKey, value);
        }
    }
    assert ownDesc.isAccessorDescriptor();
    Callable setter = ownDesc.getSetter();
    if (setter == null) {
        return false;
    }
    setter.call(cx, receiver, value);
    return true;
}