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 java.io.PrintStream;
0N/Aimport java.io.ByteArrayOutputStream;
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 Node implements Constants, Cloneable {
0N/A int op;
0N/A long where;
0N/A
0N/A /**
0N/A * Constructor
0N/A */
0N/A Node(int op, long where) {
0N/A this.op = op;
0N/A this.where = where;
0N/A }
0N/A
0N/A /**
0N/A * Get the operator
0N/A */
0N/A public int getOp() {
0N/A return op;
0N/A }
0N/A
0N/A /**
0N/A * Get where
0N/A */
0N/A public long getWhere() {
0N/A return where;
0N/A }
0N/A
0N/A /**
0N/A * Implicit conversions
0N/A */
0N/A public Expression convert(Environment env, Context ctx, Type t, Expression e) {
0N/A if (e.type.isType(TC_ERROR) || t.isType(TC_ERROR)) {
0N/A // An error was already reported
0N/A return e;
0N/A }
0N/A
0N/A if (e.type.equals(t)) {
0N/A // The types are already the same
0N/A return e;
0N/A }
0N/A
0N/A try {
0N/A if (e.fitsType(env, ctx, t)) {
0N/A return new ConvertExpression(where, t, e);
0N/A }
0N/A
0N/A if (env.explicitCast(e.type, t)) {
0N/A env.error(where, "explicit.cast.needed", opNames[op], e.type, t);
0N/A return new ConvertExpression(where, t, e);
0N/A }
0N/A } catch (ClassNotFound ee) {
0N/A env.error(where, "class.not.found", ee.name, opNames[op]);
0N/A }
0N/A
0N/A // The cast is not allowed
0N/A env.error(where, "incompatible.type", opNames[op], e.type, t);
0N/A return new ConvertExpression(where, Type.tError, e);
0N/A }
0N/A
0N/A /**
0N/A * Print
0N/A */
0N/A public void print(PrintStream out) {
0N/A throw new CompilerError("print");
0N/A }
0N/A
0N/A /**
0N/A * Clone this object.
0N/A */
0N/A public Object clone() {
0N/A try {
0N/A return super.clone();
0N/A } catch (CloneNotSupportedException e) {
0N/A // this shouldn't happen, since we are Cloneable
0N/A throw new InternalError();
0N/A }
0N/A }
0N/A
0N/A /*
0N/A * Useful for simple debugging
0N/A */
0N/A public String toString() {
0N/A ByteArrayOutputStream bos = new ByteArrayOutputStream();
0N/A print(new PrintStream(bos));
0N/A return bos.toString();
0N/A }
0N/A
0N/A}