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

Example 86 with ExecutionContext

use of com.github.anba.es6draft.runtime.ExecutionContext in project es6draft by anba.

the class DefaultCodeGenerator method classMethodDecorators.

private MethodName classMethodDecorators(ClassDefinition node, CodeVisitor parent) {
    MethodTypeDescriptor descriptor = ClassMethodDecoratorsVisitor.methodDescriptor();
    MethodCode method = codegen.method(parent, "classdecorators", descriptor);
    ClassMethodDecoratorsVisitor mv = new ClassMethodDecoratorsVisitor(method);
    mv.begin();
    Variable<ExecutionContext> cx = mv.getExecutionContext();
    Variable<OrdinaryConstructorFunction> constructor = mv.getConstructor();
    Variable<OrdinaryObject> prototype = mv.getPrototype();
    // List of <1..n callable, property key>.
    Variable<Object[]> decorators = mv.getDecorators();
    Variable<Object> propertyKey = mv.newVariable("propertyKey", Object.class);
    Variable<Object> propertyDesc = mv.newVariable("propertyDesc", Object.class);
    Variable<Object> result = mv.newVariable("result", Object.class);
    int index = 0;
    for (MethodDefinition methodDef : DecoratedMethods(node.getMethods())) {
        List<Expression> decoratorsList = methodDef.getDecorators();
        assert !decoratorsList.isEmpty();
        assert !methodDef.isCallConstructor();
        Variable<? extends OrdinaryObject> object;
        if (methodDef.isStatic()) {
            object = constructor;
        } else {
            object = prototype;
        }
        mv.store(propertyKey, mv.arrayElement(decorators, index + decoratorsList.size(), Object.class));
        mv.lineInfo(methodDef);
        mv.invoke(Methods.DecoratorOperations_propertyDescriptor, object, propertyKey, cx);
        mv.store(propertyDesc);
        for (Expression decoratorExpr : decoratorsList) {
            Value<Object> decorator = mv.arrayElement(decorators, index++, Object.class);
            invokeDynamicCall(mv, decoratorExpr, decorator, cx, mv.undefinedValue(), object, propertyKey, propertyDesc);
            mv.store(result);
            Jump isObject = new Jump();
            mv.invoke(Methods.Type_isObject, result);
            mv.ifeq(isObject);
            {
                mv.store(propertyDesc, result);
            }
            mv.mark(isObject);
        }
        Jump isObject = new Jump();
        mv.invoke(Methods.Type_isObject, propertyDesc);
        mv.ifeq(isObject);
        {
            mv.lineInfo(methodDef);
            mv.invoke(Methods.DecoratorOperations_defineProperty, object, propertyKey, propertyDesc, cx);
        }
        mv.mark(isObject);
        // Skip over property key element.
        index += 1;
    }
    mv._return();
    mv.end();
    return method.name();
}

Example 87 with ExecutionContext

use of com.github.anba.es6draft.runtime.ExecutionContext in project es6draft by anba.

the class Properties method getStaticMethodHandle.

private static MethodHandle getStaticMethodHandle(Lookup lookup, Method method) throws IllegalAccessException {
    MethodHandle handle = lookup.unreflect(method);
    MethodType type = handle.type();
    Class<?>[] params = type.parameterArray();
    int p = 0, pcount = type.parameterCount();
    boolean callerContext = false;
    // First three parameters are (ExecutionContext, ExecutionContext?, Object=ThisValue)
    if (!(p < pcount && ExecutionContext.class.equals(params[p++]))) {
        throw new IllegalArgumentException(type.toString());
    }
    if (p < pcount && ExecutionContext.class.equals(params[p])) {
        callerContext = true;
        p++;
    }
    if (!(p < pcount && Object.class.equals(params[p++]))) {
        throw new IllegalArgumentException(type.toString());
    }
    // Always required to return Object (for now at least)
    if (!Object.class.equals(type.returnType())) {
        throw new IllegalArgumentException(type.toString());
    }
    // Collect remaining arguments into Object[]
    if (!(p + 1 == pcount && Object[].class.equals(params[p]))) {
        final int fixedArguments = callerContext ? 3 : 2;
        final boolean varargs = handle.isVarargsCollector();
        // Otherwise all trailing arguments need to be of type Object or Object[]
        for (; p < pcount; ++p) {
            if (Object.class.equals(params[p])) {
                continue;
            }
            if (p + 1 == pcount && Object[].class.equals(params[p]) && varargs) {
                continue;
            }
            throw new IllegalArgumentException(type.toString());
        }
        // Trailing Object[] arguments are no longer spread in var-args methods (jdk8u40, jdk9).
        if (varargs) {
            handle = handle.asFixedArity();
        }
        // Convert to (ExecutionContext, Object, ...) -> Object handle
        handle = toCanonical(handle, fixedArguments, varargs, method);
    }
    if (!callerContext) {
        handle = MethodHandles.dropArguments(handle, 1, ExecutionContext.class);
    }
    return handle;
}

Example 88 with ExecutionContext

use of com.github.anba.es6draft.runtime.ExecutionContext in project es6draft by anba.

the class CollatorConstructor method construct.

/**
 * 10.1.2 Intl.Collator([ locales [, options]])
 */
@Override
public CollatorObject construct(ExecutionContext callerContext, Constructor newTarget, Object... args) {
    ExecutionContext calleeContext = calleeContext();
    Object locales = argument(args, 0);
    Object options = argument(args, 1);
    /* step 1 (not applicable) */
    /* steps 2-5 */
    CollatorObject collator = OrdinaryCreateFromConstructor(calleeContext, newTarget, Intrinsics.Intl_CollatorPrototype, CollatorObject::new);
    /* step 6 */
    InitializeCollator(calleeContext, collator, locales, options);
    return collator;
}

Example 89 with ExecutionContext

use of com.github.anba.es6draft.runtime.ExecutionContext in project es6draft by anba.

the class DateTimeFormatConstructor method construct.

/**
 * 12.2.1 Intl.DateTimeFormat([ locales [, options ]])
 */
@Override
public DateTimeFormatObject construct(ExecutionContext callerContext, Constructor newTarget, Object... args) {
    ExecutionContext calleeContext = calleeContext();
    Object locales = argument(args, 0);
    Object options = argument(args, 1);
    /* step 1 (not applicable) */
    /* step 2 */
    DateTimeFormatObject obj = OrdinaryCreateFromConstructor(calleeContext, newTarget, Intrinsics.Intl_DateTimeFormatPrototype, DateTimeFormatObject::new);
    /* step 3 */
    InitializeDateTimeFormat(calleeContext, obj, locales, options);
    /* step 6 */
    return obj;
}

Example 90 with ExecutionContext

use of com.github.anba.es6draft.runtime.ExecutionContext in project es6draft by anba.

the class ListFormatConstructor method construct.

/**
 * Intl.ListFormat ([ locales [ , options ]])
 */
@Override
public ListFormatObject construct(ExecutionContext callerContext, Constructor newTarget, Object... args) {
    ExecutionContext calleeContext = calleeContext();
    Object locales = argument(args, 0);
    Object options = argument(args, 1);
    /* step 1 (not applicable) */
    /* step 2 */
    ListFormatObject listFormat = OrdinaryCreateFromConstructor(calleeContext, newTarget, Intrinsics.Intl_ListFormatPrototype, ListFormatObject::new);
    /* step 3 */
    InitializeListFormat(calleeContext, listFormat, locales, options);
    return listFormat;
}