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

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * The Universal Permissive License (UPL), Version 1.0
 *
 * Subject to the condition set forth below, permission is hereby granted to any
 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
 * copyright rights in the Software, and any and all patent rights owned or
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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
 *
 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
 * one is included with the Software each a "Larger Work" to which the Software
 * is contributed by such licensors),
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 * The above copyright notice and either this complete permission notice or at a
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package com.oracle.truffle.js.runtime.builtins;

import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.interop.InteropLibrary;
import com.oracle.truffle.api.library.ExportLibrary;
import com.oracle.truffle.api.library.ExportMessage;
import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.lang.JavaScriptLanguage;
import com.oracle.truffle.js.runtime.JSRuntime;
import com.oracle.truffle.js.runtime.Strings;
import com.oracle.truffle.js.runtime.ToDisplayStringFormat;
import com.oracle.truffle.js.runtime.objects.JSDynamicObject;
import com.oracle.truffle.js.runtime.objects.JSNonProxyObject;

@ExportLibrary(InteropLibrary.class)
public final class JSBooleanObject extends JSNonProxyObject {

    private final boolean value;

    protected JSBooleanObject(Shape shape, JSDynamicObject proto, boolean value) {
        super(shape, proto);
        this.value = value;
    }

    public boolean getBooleanValue() {
        return value;
    }

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

    @Override
    public TruffleString getBuiltinToStringTag() {
        return JSBoolean.CLASS_NAME;
    }

    public static JSBooleanObject create(Shape shape, JSDynamicObject proto, boolean value) {
        return new JSBooleanObject(shape, proto, value);
    }

    @SuppressWarnings("static-method")
    @ExportMessage
    public boolean isBoolean() {
        return true;
    }

    @ExportMessage
    public boolean asBoolean() {
        return JSBoolean.valueOf(this);
    }

    @TruffleBoundary
    @Override
    public TruffleString toDisplayStringImpl(boolean allowSideEffects, ToDisplayStringFormat format, int depth) {
        if (JavaScriptLanguage.get(null).getJSContext().isOptionNashornCompatibilityMode()) {
            return Strings.concatAll(Strings.BRACKET_BOOLEAN_SPC, Strings.fromBoolean(JSBoolean.valueOf(this)), Strings.BRACKET_CLOSE);
        } else {
            boolean primitiveValue = JSBoolean.valueOf(this);
            return JSRuntime.objectToDisplayString(this, allowSideEffects, format, depth,
                            getBuiltinToStringTag(), new TruffleString[]{Strings.PRIMITIVE_VALUE}, new Object[]{primitiveValue});
        }
    }
}