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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
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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
 * 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.js.parser.ir;

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

/**
 * IR representation of a property access (period operator.)
 */
public final class AccessNode extends BaseNode {
    /** Property name. */
    private final String property;

    /** Private member access. */
    private final boolean isPrivate;

    /**
     * Constructor
     *
     * @param token token
     * @param finish finish
     * @param base base node
     * @param property property
     */
    public AccessNode(final long token, final int finish, final Expression base, final String property, boolean isSuper, boolean isPrivate, boolean optional, boolean optionalChain) {
        super(token, finish, base, isSuper, optional, optionalChain);
        this.property = property;
        this.isPrivate = isPrivate;
        assert !(isSuper && isPrivate);
    }

    public AccessNode(final long token, final int finish, final Expression base, final String property) {
        this(token, finish, base, property, false, false, false, false);
    }

    private AccessNode(final AccessNode accessNode, final Expression base, final String property, boolean isSuper) {
        super(accessNode, base, isSuper, accessNode.isOptional(), accessNode.isOptionalChain());
        this.property = property;
        this.isPrivate = accessNode.isPrivate;
    }

    /**
     * Assist in IR navigation.
     *
     * @param visitor IR navigating visitor.
     */
    @Override
    public Node accept(final NodeVisitor visitor) {
        if (visitor.enterAccessNode(this)) {
            return visitor.leaveAccessNode(setBase((Expression) base.accept(visitor)));
        }
        return this;
    }

    @Override
    public  R accept(TranslatorNodeVisitor visitor) {
        return visitor.enterAccessNode(this);
    }

    @Override
    public void toString(final StringBuilder sb, final boolean printType) {
        final boolean needsParen = tokenType().needsParens(getBase().tokenType(), true);

        if (needsParen) {
            sb.append('(');
        }

        base.toString(sb, printType);

        if (needsParen) {
            sb.append(')');
        }

        if (isOptional()) {
            sb.append('?');
        }
        sb.append('.');

        sb.append(property);
    }

    /**
     * Get the property name
     *
     * @return the property name
     */
    public String getProperty() {
        return property;
    }

    public boolean isPrivate() {
        return isPrivate;
    }

    public String getPrivateName() {
        assert isPrivate();
        return property;
    }

    private AccessNode setBase(final Expression base) {
        if (this.base == base) {
            return this;
        }
        return new AccessNode(this, base, property, isSuper());
    }

    @Override
    public AccessNode setIsSuper() {
        if (isSuper()) {
            return this;
        }
        return new AccessNode(this, base, property, true);
    }
}