com.oracle.truffle.js.runtime.builtins.JSShadowRealm Maven / Gradle / Ivy

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 * The Universal Permissive License (UPL), Version 1.0
 *
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 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
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 * unmodified Software as contributed to or provided by such licensor, or (ii)
 * the Larger Works (as defined below), to deal in both
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 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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package com.oracle.truffle.js.runtime.builtins;

import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.builtins.ShadowRealmPrototypeBuiltins;
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;

public final class JSShadowRealm extends JSNonProxy implements JSConstructorFactory.Default, PrototypeSupplier {

    public static final TruffleString CLASS_NAME = Strings.constant("ShadowRealm");
    public static final TruffleString PROTOTYPE_NAME = Strings.constant("ShadowRealm.prototype");

    public static final JSShadowRealm INSTANCE = new JSShadowRealm();

    private JSShadowRealm() {
    }

    public static JSShadowRealmObject create(JSContext context, JSRealm callerRealm, JSDynamicObject proto, JSRealm shadowRealm) {
        JSObjectFactory factory = context.getShadowRealmFactory();
        var shape = factory.getShape(callerRealm, proto);
        var newObj = factory.initProto(new JSShadowRealmObject(shape, proto, shadowRealm), callerRealm, proto);
        return factory.trackAllocation(newObj);
    }

    @Override
    public JSDynamicObject createPrototype(JSRealm realm, JSFunctionObject ctor) {
        JSObject prototype = JSObjectUtil.createOrdinaryPrototypeObject(realm);
        JSObjectUtil.putConstructorProperty(prototype, ctor);
        JSObjectUtil.putFunctionsFromContainer(realm, prototype, ShadowRealmPrototypeBuiltins.BUILTINS);
        JSObjectUtil.putToStringTag(prototype, CLASS_NAME);
        return prototype;
    }

    @Override
    public Shape makeInitialShape(JSContext context, JSDynamicObject prototype) {
        return JSObjectUtil.getProtoChildShape(prototype, INSTANCE, context);
    }

    public static JSConstructor createConstructor(JSRealm realm) {
        return INSTANCE.createConstructorAndPrototype(realm);
    }

    @Override
    public TruffleString getClassName() {
        return CLASS_NAME;
    }

    @Override
    public JSDynamicObject getIntrinsicDefaultProto(JSRealm realm) {
        return realm.getShadowRealmPrototype();
    }

    public static boolean isJSShadowRealm(Object object) {
        return object instanceof JSShadowRealmObject;
    }
}