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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
 * freely licensable by each licensor hereunder covering either (i) the
 * 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),
 *
 * without restriction, including without limitation the rights to copy, create
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
 * either these or other terms.
 *
 * This license is subject to the following condition:
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 * The above copyright notice and either this complete permission notice or at a
 * minimum a reference to the UPL must be included in all copies or substantial
 * portions of the Software.
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package com.oracle.truffle.js.nodes.unary;

import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.interop.InteropLibrary;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.runtime.BigInt;
import com.oracle.truffle.js.runtime.JSConfig;
import com.oracle.truffle.js.runtime.JSRuntime;
import com.oracle.truffle.js.runtime.Symbol;
import com.oracle.truffle.js.runtime.builtins.JSFunction;

Represents abstract operation IsConstructor.
See Also:
isConstructor.isConstructor(Object)/**
 * Represents abstract operation IsConstructor.
 *
 * @see JSRuntime#isConstructor(Object)
 */
@ImportStatic({JSConfig.class})
@GenerateUncached
public abstract class IsConstructorNode extends JavaScriptBaseNode {

    protected IsConstructorNode() {
    }

    public abstract boolean executeBoolean(Object operand);

    @Specialization(guards = "isJSFunction(function)")
    protected static boolean doJSFunction(DynamicObject function) {
        return JSFunction.isConstructor(function);
    }

    @Specialization(guards = "isJSProxy(proxy)")
    protected static boolean doJSProxy(DynamicObject proxy) {
        return JSRuntime.isConstructorProxy(proxy);
    }

    @SuppressWarnings("unused")
    @Specialization(guards = {"isJSDynamicObject(other)", "!isJSFunction(other)", "!isJSProxy(other)"})
    protected static boolean doOther(Object other) {
        return false;
    }

    @Specialization
    protected static boolean doCharSequence(@SuppressWarnings("unused") CharSequence charSequence) {
        return false;
    }

    @Specialization
    protected static boolean doBoolean(@SuppressWarnings("unused") boolean value) {
        return false;
    }

    @Specialization
    protected static boolean doNumber(@SuppressWarnings("unused") Number number) {
        return false;
    }

    @Specialization
    protected static boolean doSymbol(@SuppressWarnings("unused") Symbol symbol) {
        return false;
    }

    @Specialization
    protected static boolean doBigInt(@SuppressWarnings("unused") BigInt bigInt) {
        return false;
    }

    @Specialization(guards = "isForeignObject(obj)", limit = "InteropLibraryLimit")
    protected static boolean doTruffleObject(Object obj,
                    @CachedLibrary("obj") InteropLibrary interop) {
        return interop.isInstantiable(obj);
    }

    public static IsConstructorNode create() {
        return IsConstructorNodeGen.create();
    }
}