Mercurial > hg > shenandoah-preopenjdk-archive > openjdk8 > nashorn
view src/jdk/nashorn/internal/ir/ObjectNode.java @ 1060:8c51767d534d
8059843: Make AST serializable
Reviewed-by: hannesw, lagergren
author | attila |
---|---|
date | Fri, 17 Oct 2014 14:24:26 +0200 |
parents | e2497b11a021 |
children |
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/* * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.nashorn.internal.ir; import java.util.Collections; import java.util.List; import java.util.function.Function; import jdk.nashorn.internal.codegen.types.Type; import jdk.nashorn.internal.ir.annotations.Immutable; import jdk.nashorn.internal.ir.visitor.NodeVisitor; /** * IR representation of an object literal. */ @Immutable public final class ObjectNode extends Expression { private static final long serialVersionUID = 1L; /** Literal elements. */ private final List<PropertyNode> elements; /** * Constructor * * @param token token * @param finish finish * @param elements the elements used to initialize this ObjectNode */ public ObjectNode(final long token, final int finish, final List<PropertyNode> elements) { super(token, finish); this.elements = elements; } private ObjectNode(final ObjectNode objectNode, final List<PropertyNode> elements) { super(objectNode); this.elements = elements; } @Override public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { if (visitor.enterObjectNode(this)) { return visitor.leaveObjectNode(setElements(Node.accept(visitor, elements))); } return this; } @Override public Type getType(final Function<Symbol, Type> localVariableTypes) { return Type.OBJECT; } @Override public void toString(final StringBuilder sb, final boolean printType) { sb.append('{'); if (!elements.isEmpty()) { sb.append(' '); boolean first = true; for (final Node element : elements) { if (!first) { sb.append(", "); } first = false; element.toString(sb, printType); } sb.append(' '); } sb.append('}'); } /** * Get the elements of this literal node * @return a list of elements */ public List<PropertyNode> getElements() { return Collections.unmodifiableList(elements); } private ObjectNode setElements(final List<PropertyNode> elements) { if (this.elements == elements) { return this; } return new ObjectNode(this, elements); } }