/*
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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
 * 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
 *
 * (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:
 *
 * 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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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package com.oracle.js.parser.ir;

import com.oracle.js.parser.ir.visitor.NodeVisitor;
import com.oracle.js.parser.ir.visitor.TranslatorNodeVisitor;

public class ImportSpecifierNode extends Node {

    private final IdentNode identifier;

    private final IdentNode bindingIdentifier;

    public ImportSpecifierNode(final long token, final int start, final int finish, final IdentNode bindingIdentifier, final IdentNode identifier) {
        super(token, start, finish);
        this.identifier = identifier;
        this.bindingIdentifier = bindingIdentifier;
    }

    private ImportSpecifierNode(final ImportSpecifierNode node, final IdentNode bindingIdentifier, final IdentNode identifier) {
        super(node);
        this.identifier = identifier;
        this.bindingIdentifier = bindingIdentifier;
    }

    public IdentNode getIdentifier() {
        return identifier;
    }

    public IdentNode getBindingIdentifier() {
        return bindingIdentifier;
    }

    public ImportSpecifierNode setIdentifier(IdentNode identifier) {
        if (this.identifier == identifier) {
            return this;
        }
        return new ImportSpecifierNode(this, identifier, bindingIdentifier);
    }

    public ImportSpecifierNode setBindingIdentifier(IdentNode bindingIdentifier) {
        if (this.bindingIdentifier == bindingIdentifier) {
            return this;
        }
        return new ImportSpecifierNode(this, identifier, bindingIdentifier);
    }

    @Override
    public Node accept(NodeVisitor<? extends LexicalContext> visitor) {
        if (visitor.enterImportSpecifierNode(this)) {
            IdentNode newIdentifier = identifier == null ? null
                            : (IdentNode) identifier.accept(visitor);
            return visitor.leaveImportSpecifierNode(
                            setBindingIdentifier((IdentNode) bindingIdentifier.accept(visitor)).setIdentifier(newIdentifier));
        }

        return this;
    }

    @Override
    public <R> R accept(TranslatorNodeVisitor<? extends LexicalContext, R> visitor) {
        return visitor.enterImportSpecifierNode(this);
    }

    @Override
    public void toString(StringBuilder sb, boolean printType) {
        if (identifier != null) {
            identifier.toString(sb, printType);
            sb.append(" as ");
        }
        bindingIdentifier.toString(sb, printType);
    }

}