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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)
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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
 * one is included with the Software each a "Larger Work" to which the Software
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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package com.oracle.truffle.js.runtime.builtins;

import com.oracle.truffle.api.dsl.Fallback;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.interop.ExceptionType;
import com.oracle.truffle.api.interop.InteropLibrary;
import com.oracle.truffle.api.interop.UnsupportedMessageException;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.api.library.ExportLibrary;
import com.oracle.truffle.api.library.ExportMessage;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.api.utilities.TriState;
import com.oracle.truffle.js.runtime.GraalJSException;
import com.oracle.truffle.js.runtime.JSConfig;
import com.oracle.truffle.js.runtime.JSRealm;
import com.oracle.truffle.js.runtime.objects.JSCopyableObject;
import com.oracle.truffle.js.runtime.objects.JSDynamicObject;
import com.oracle.truffle.js.runtime.objects.JSNonProxyObject;
import com.oracle.truffle.js.runtime.objects.JSObject;

@ImportStatic({JSConfig.class})
@ExportLibrary(InteropLibrary.class)
public final class JSErrorObject extends JSNonProxyObject implements JSCopyableObject {

    protected JSErrorObject(Shape shape) {
        super(shape);
    }

    public static DynamicObject create(Shape shape) {
        return new JSErrorObject(shape);
    }

    public static DynamicObject create(JSRealm realm, JSObjectFactory factory) {
        return factory.initProto(new JSErrorObject(factory.getShape(realm)), realm);
    }

    @Override
    protected JSObject copyWithoutProperties(Shape shape) {
        return new JSErrorObject(shape);
    }

    public GraalJSException getException() {
        return JSError.getException(this);
    }

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

    @SuppressWarnings("static-method")
    @ExportMessage
    public RuntimeException throwException() {
        throw getException();
    }

    @ExportMessage
    public ExceptionType getExceptionType(
                    @CachedLibrary(limit = "InteropLibraryLimit") InteropLibrary exceptions) throws UnsupportedMessageException {
        return exceptions.getExceptionType(getException());
    }

    @ExportMessage
    public boolean isExceptionIncompleteSource(
                    @CachedLibrary(limit = "InteropLibraryLimit") InteropLibrary exceptions) throws UnsupportedMessageException {
        return exceptions.isExceptionIncompleteSource(getException());
    }

    @ExportMessage
    public boolean hasExceptionMessage(
                    @CachedLibrary(limit = "InteropLibraryLimit") InteropLibrary exceptions) {
        return exceptions.hasExceptionMessage(getException());
    }

    @ExportMessage
    public Object getExceptionMessage(
                    @CachedLibrary(limit = "InteropLibraryLimit") InteropLibrary exceptions) throws UnsupportedMessageException {
        return exceptions.getExceptionMessage(getException());
    }

    @ExportMessage
    public static final class IsIdenticalOrUndefined {
        @Specialization
        public static TriState doError(JSErrorObject receiver, JSDynamicObject other) {
            return TriState.valueOf(receiver == other);
        }

        @Specialization
        public static TriState doException(JSErrorObject receiver, GraalJSException other) {
            return TriState.valueOf(receiver == other.getErrorObject());
        }

        @SuppressWarnings("unused")
        @Fallback
        public static TriState doOther(JSErrorObject receiver, Object other) {
            return TriState.UNDEFINED;
        }
    }

}