com.oracle.truffle.js.runtime.builtins.JSOrdinary Maven / Gradle / Ivy
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package com.oracle.truffle.js.runtime.builtins;
import com.oracle.truffle.api.CompilerAsserts;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.JSRealm;
import com.oracle.truffle.js.runtime.Strings;
import com.oracle.truffle.js.runtime.objects.JSDynamicObject;
import com.oracle.truffle.js.runtime.objects.JSObject;
import com.oracle.truffle.js.runtime.objects.JSObjectUtil;
import com.oracle.truffle.js.runtime.objects.JSOrdinaryObject;
import com.oracle.truffle.js.runtime.objects.JSShape;
import com.oracle.truffle.js.runtime.objects.Null;
import com.oracle.truffle.js.runtime.util.CompilableBiFunction;
/**
* @see JSOrdinaryObject
*/
public final class JSOrdinary extends JSNonProxy implements PrototypeSupplier {
public static final TruffleString TYPE_NAME = Strings.OBJECT;
public static final TruffleString CLASS_NAME = Strings.UC_OBJECT;
public static final TruffleString PROTOTYPE_NAME = Strings.constant("Object.prototype");
public static final JSOrdinary INSTANCE = new JSOrdinary();
public static final CompilableBiFunction SHAPE_SUPPLIER = (ctx, proto) -> JSObjectUtil.getProtoChildShape(proto, INSTANCE, ctx);
public static final JSOrdinary BARE_INSTANCE = new JSOrdinary();
public static final JSOrdinary INTERNAL_FIELD_INSTANCE = new JSOrdinary();
public static final JSOrdinary OVERLOADED_OPERATORS_INSTANCE = new JSOrdinary();
private JSOrdinary() {
}
public static JSObject create(JSContext context, JSObjectFactory factory, JSRealm realm) {
return createWithRealm(context, factory, realm);
}
public static JSObject createWithRealm(JSContext context, JSObjectFactory factory, JSRealm realm) {
JSObject obj = JSOrdinaryObject.create(factory.getShape(realm), factory.getPrototype(realm));
factory.initProto(obj, realm);
return context.trackAllocation(obj);
}
public static JSObject create(JSContext context, JSRealm realm) {
return create(context, realm, INSTANCE.getIntrinsicDefaultProto(realm));
}
public static JSObject create(JSContext context, JSRealm realm, JSDynamicObject proto) {
JSObjectFactory factory = context.getOrdinaryObjectFactory();
JSObject obj = JSOrdinaryObject.createWithDefaultLayout(factory.getShape(realm, proto), proto);
factory.initProto(obj, realm, proto);
return context.trackAllocation(obj);
}
public static JSObject create(JSObjectFactory factory, JSRealm realm, JSDynamicObject proto) {
JSObject obj = JSOrdinaryObject.create(factory.getShape(realm), proto);
factory.initProto(obj, realm);
return factory.trackAllocation(obj);
}
@TruffleBoundary
public static JSObject createWithPrototype(JSDynamicObject prototype, JSContext context) {
return createWithPrototype(prototype, context, INSTANCE);
}
public static JSObject createWithNullPrototype(JSContext context) {
return context.trackAllocation(JSOrdinaryObject.createWithDefaultLayout(context.getEmptyShapeNullPrototype(), Null.instance));
}
@TruffleBoundary
public static JSObject createWithPrototype(JSDynamicObject prototype, JSContext context, JSOrdinary instanceLayout) {
assert JSObjectUtil.isValidPrototype(prototype);
JSObject obj;
if (prototype == Null.instance) {
obj = JSOrdinaryObject.create(context.makeEmptyShapeWithNullPrototype(instanceLayout), prototype);
} else if (!context.isMultiContext()) {
obj = JSOrdinaryObject.create(JSObjectUtil.getProtoChildShape(prototype, instanceLayout, context), prototype);
} else {
obj = JSOrdinaryObject.create(context.makeEmptyShapeWithPrototypeInObject(instanceLayout), prototype);
setProtoSlow(obj, prototype);
}
return context.trackAllocation(obj);
}
public static JSObject createInitWithInstancePrototype(JSDynamicObject prototype, JSContext context) {
assert JSObjectUtil.isValidPrototype(prototype);
Shape shape = context.getEmptyShapePrototypeInObject();
JSOrdinaryObject obj = JSOrdinaryObject.create(shape, prototype);
setProtoSlow(obj, prototype);
return obj;
}
private static void setProtoSlow(JSObject obj, JSDynamicObject prototype) {
JSObjectUtil.putHiddenProperty(obj, JSObject.HIDDEN_PROTO, prototype);
}
public static JSObject createWithoutPrototype(JSContext context, JSDynamicObject proto) {
Shape shape = context.getEmptyShapePrototypeInObject();
JSObject obj = create(context, shape, proto);
// prototype is set in caller
return obj;
}
public static JSObject create(JSContext context, Shape shape, JSDynamicObject proto) {
assert JSShape.getJSClass(shape) instanceof JSOrdinary;
return context.trackAllocation(JSOrdinaryObject.create(shape, proto));
}
public static JSObject createInit(JSRealm realm) {
CompilerAsserts.neverPartOfCompilation();
return createInit(realm, realm.getObjectPrototype());
}
public static JSObject createInit(JSRealm realm, JSDynamicObject prototype) {
CompilerAsserts.neverPartOfCompilation();
assert JSObjectUtil.isValidPrototype(prototype);
JSContext context = realm.getContext();
if (context.isMultiContext()) {
return createInitWithInstancePrototype(prototype, context);
} else {
return JSOrdinaryObject.create(prototype == Null.instance ? context.getEmptyShapeNullPrototype() : JSObjectUtil.getProtoChildShape(prototype, INSTANCE, context), prototype);
}
}
public static JSObject createWithNullPrototypeInit(JSContext context) {
CompilerAsserts.neverPartOfCompilation();
return JSOrdinaryObject.create(context.getEmptyShapeNullPrototype(), Null.instance);
}
public static boolean isJSOrdinaryObject(Object obj) {
return JSDynamicObject.isJSDynamicObject(obj) && isJSOrdinaryObject((JSDynamicObject) obj);
}
public static boolean isJSOrdinaryObject(JSDynamicObject obj) {
return isInstance(obj, INSTANCE);
}
@TruffleBoundary
@Override
public Object get(JSDynamicObject thisObj, long index) {
// convert index only once
return get(thisObj, Strings.fromLong(index));
}
@Override
public boolean hasOnlyShapeProperties(JSDynamicObject obj) {
return true;
}
@Override
public Shape makeInitialShape(JSContext context, JSDynamicObject prototype) {
return JSObjectUtil.getProtoChildShape(prototype, INSTANCE, context);
}
@Override
public JSDynamicObject getIntrinsicDefaultProto(JSRealm realm) {
return realm.getObjectPrototype();
}
}
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