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

Example 1 with Property

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

the class GeneratorFunctionConstructor method CreateDynamicGenerator.

private static OrdinaryGenerator CreateDynamicGenerator(ExecutionContext callerContext, ExecutionContext cx, Constructor newTarget, Object... args) {
    /* step 1 (not applicable) */
    /* step 2 (not applicable) */
    /* step 3 */
    Intrinsics fallbackProto = Intrinsics.Generator;
    /* steps 4-10 */
    String[] sourceText = functionSourceText(cx, args);
    String parameters = sourceText[0], bodyText = sourceText[1];
    /* steps 11, 13-20 */
    Source source = functionSource(SourceKind.Generator, cx.getRealm(), callerContext);
    RuntimeInfo.Function function;
    try {
        ScriptLoader scriptLoader = cx.getRealm().getScriptLoader();
        function = scriptLoader.generator(source, parameters, bodyText).getFunction();
    } catch (ParserException | CompilationException e) {
        throw e.toScriptException(cx);
    }
    /* step 12 */
    boolean strict = function.isStrict();
    /* steps 21-22 */
    ScriptObject proto = GetPrototypeFromConstructor(cx, newTarget, fallbackProto);
    /* step 23 */
    OrdinaryGenerator f = OrdinaryGenerator.FunctionAllocate(cx, proto, strict, FunctionKind.Normal);
    /* steps 24-25 */
    LexicalEnvironment<GlobalEnvironmentRecord> scope = f.getRealm().getGlobalEnv();
    /* step 26 */
    FunctionInitialize(f, FunctionKind.Normal, function, scope, newFunctionExecutable(source));
    /* step 27 */
    OrdinaryObject prototype = ObjectCreate(cx, Intrinsics.GeneratorPrototype);
    f.infallibleDefineOwnProperty("prototype", new Property(prototype, true, false, false));
    /* step 28 (not applicable) */
    /* step 29 */
    SetFunctionName(f, "anonymous");
    /* step 30 */
    return f;
}

Example 2 with Property

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

the class WrapperProxy method get.

@Override
public Object get(ExecutionContext cx, long propertyKey, Object receiver) {
    /* modified 9.1.8 [[Get]] (P, Receiver) */
    Property desc = proxyTarget.getOwnProperty(cx, propertyKey);
    if (desc == null) {
        // modified
        ScriptObject parent = getPrototype();
        if (parent == null) {
            return UNDEFINED;
        }
        return parent.get(cx, propertyKey, receiver);
    }
    if (desc.isDataDescriptor()) {
        return desc.getValue();
    }
    assert desc.isAccessorDescriptor();
    Callable getter = desc.getGetter();
    if (getter == null) {
        return UNDEFINED;
    }
    return getter.call(cx, receiver);
}

Example 3 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) {
    /* modified 9.1.9 [[Set] (P, V, Receiver) */
    Property ownDesc = proxyTarget.getOwnProperty(cx, propertyKey);
    if (ownDesc == null) {
        // modified
        ScriptObject parent = getPrototype();
        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;
}

Example 4 with Property

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

the class AsyncGeneratorFunctionConstructor method CreateDynamicFunction.

/**
     * 19.2.1.1.1 RuntimeSemantics: CreateDynamicFunction(constructor, newTarget, kind, args)
     * 
     * @param callerContext
     *            the caller execution context
     * @param cx
     *            the execution context
     * @param newTarget
     *            the newTarget constructor function
     * @param args
     *            the function arguments
     * @return the new async generator function object
     */
private static FunctionObject CreateDynamicFunction(ExecutionContext callerContext, ExecutionContext cx, Constructor newTarget, Object... args) {
    /* step 1 (not applicable) */
    /* step 2 (not applicable) */
    /* step 3 */
    Intrinsics fallbackProto = Intrinsics.AsyncGenerator;
    /* steps 4-10 */
    String[] sourceText = functionSourceText(cx, args);
    String parameters = sourceText[0], bodyText = sourceText[1];
    /* steps 11, 13-20 */
    Source source = functionSource(SourceKind.AsyncGenerator, cx.getRealm(), callerContext);
    RuntimeInfo.Function function;
    try {
        ScriptLoader scriptLoader = cx.getRealm().getScriptLoader();
        function = scriptLoader.asyncGenerator(source, parameters, bodyText).getFunction();
    } catch (ParserException | CompilationException e) {
        throw e.toScriptException(cx);
    }
    /* step 12 */
    boolean strict = function.isStrict();
    /* steps 21-22 */
    ScriptObject proto = GetPrototypeFromConstructor(cx, newTarget, fallbackProto);
    /* step 23 */
    OrdinaryAsyncGenerator f = FunctionAllocate(cx, proto, strict, FunctionKind.Normal);
    /* steps 24-25 */
    LexicalEnvironment<GlobalEnvironmentRecord> scope = f.getRealm().getGlobalEnv();
    /* step 26 */
    FunctionInitialize(f, FunctionKind.Normal, function, scope, newFunctionExecutable(source));
    /* step 27 */
    OrdinaryObject prototype = ObjectCreate(cx, Intrinsics.AsyncGeneratorPrototype);
    f.infallibleDefineOwnProperty("prototype", new Property(prototype, true, false, false));
    /* step 28 (not applicable) */
    /* step 29 */
    SetFunctionName(f, "anonymous");
    /* step 30 */
    return f;
}

Example 5 with Property

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

the class OrdinaryFunction method MakeConstructor.

/**
     * 9.2.8 MakeConstructor (F, writablePrototype, prototype)
     * 
     * @param <CONSTRUCTOR>
     *            the constructor function type
     * @param cx
     *            the execution context
     * @param f
     *            the function object
     */
public static <CONSTRUCTOR extends FunctionObject & Constructor> void MakeConstructor(ExecutionContext cx, CONSTRUCTOR f) {
    /* step 3 */
    assert f.isExtensible() && !f.ordinaryHasOwnProperty("prototype");
    /* step 4 */
    boolean writablePrototype = true;
    /* step 5.a */
    OrdinaryObject prototype = ObjectCreate(cx, Intrinsics.ObjectPrototype);
    /* step 5.b-c */
    prototype.infallibleDefineOwnProperty("constructor", new Property(f, writablePrototype, false, true));
    /* steps 6-7 */
    f.infallibleDefineOwnProperty("prototype", new Property(prototype, writablePrototype, false, false));
/* step 8 (return) */
}