0N/A/*
2362N/A * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.tools.tree;
0N/A
0N/Aimport sun.tools.java.*;
0N/Aimport sun.tools.asm.Assembler;
0N/Aimport java.util.Hashtable;
0N/A
0N/A/**
0N/A * WARNING: The contents of this source file are not part of any
0N/A * supported API. Code that depends on them does so at its own risk:
0N/A * they are subject to change or removal without notice.
0N/A */
0N/Apublic
0N/Aclass CommaExpression extends BinaryExpression {
0N/A /**
0N/A * constructor
0N/A */
0N/A public CommaExpression(long where, Expression left, Expression right) {
0N/A super(COMMA, where, (right != null) ? right.type : Type.tVoid, left, right);
0N/A }
0N/A
0N/A /**
0N/A * Check void expression
0N/A */
0N/A public Vset check(Environment env, Context ctx, Vset vset, Hashtable exp) {
0N/A vset = left.check(env, ctx, vset, exp);
0N/A vset = right.check(env, ctx, vset, exp);
0N/A return vset;
0N/A }
0N/A
0N/A /**
0N/A * Select the type
0N/A */
0N/A void selectType(Environment env, Context ctx, int tm) {
0N/A type = right.type;
0N/A }
0N/A
0N/A /**
0N/A * Simplify
0N/A */
0N/A Expression simplify() {
0N/A if (left == null) {
0N/A return right;
0N/A }
0N/A if (right == null) {
0N/A return left;
0N/A }
0N/A return this;
0N/A }
0N/A
0N/A /**
0N/A * Inline
0N/A */
0N/A public Expression inline(Environment env, Context ctx) {
0N/A if (left != null) {
0N/A left = left.inline(env, ctx);
0N/A }
0N/A if (right != null) {
0N/A right = right.inline(env, ctx);
0N/A }
0N/A return simplify();
0N/A }
0N/A public Expression inlineValue(Environment env, Context ctx) {
0N/A if (left != null) {
0N/A left = left.inline(env, ctx);
0N/A }
0N/A if (right != null) {
0N/A right = right.inlineValue(env, ctx);
0N/A }
0N/A return simplify();
0N/A }
0N/A
0N/A /**
0N/A * Code
0N/A */
0N/A int codeLValue(Environment env, Context ctx, Assembler asm) {
0N/A if (right == null) {
0N/A // throw an appropriate error
0N/A return super.codeLValue(env, ctx, asm);
0N/A } else {
0N/A // Fully code the left-hand side. Do the LValue part of the
0N/A // right-hand side now. The remainder will be done by codeLoad or
0N/A // codeStore
0N/A if (left != null) {
0N/A left.code(env, ctx, asm);
0N/A }
0N/A return right.codeLValue(env, ctx, asm);
0N/A }
0N/A }
0N/A
0N/A void codeLoad(Environment env, Context ctx, Assembler asm) {
0N/A // The left-hand part has already been handled by codeLValue.
0N/A
0N/A if (right == null) {
0N/A // throw an appropriate error
0N/A super.codeLoad(env, ctx, asm);
0N/A } else {
0N/A right.codeLoad(env, ctx, asm);
0N/A }
0N/A }
0N/A
0N/A void codeStore(Environment env, Context ctx, Assembler asm) {
0N/A // The left-hand part has already been handled by codeLValue.
0N/A if (right == null) {
0N/A // throw an appropriate error
0N/A super.codeStore(env, ctx, asm);
0N/A } else {
0N/A right.codeStore(env, ctx, asm);
0N/A }
0N/A }
0N/A
0N/A public void codeValue(Environment env, Context ctx, Assembler asm) {
0N/A if (left != null) {
0N/A left.code(env, ctx, asm);
0N/A }
0N/A right.codeValue(env, ctx, asm);
0N/A }
0N/A public void code(Environment env, Context ctx, Assembler asm) {
0N/A if (left != null) {
0N/A left.code(env, ctx, asm);
0N/A }
0N/A if (right != null) {
0N/A right.code(env, ctx, asm);
0N/A }
0N/A }
0N/A}