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.io.PrintStream;
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 ConvertExpression extends UnaryExpression {
0N/A /**
0N/A * Constructor
0N/A */
0N/A public ConvertExpression(long where, Type type, Expression right) {
0N/A super(CONVERT, where, type, right);
0N/A }
0N/A
0N/A /**
0N/A * Check the value
0N/A */
0N/A public Vset checkValue(Environment env, Context ctx, Vset vset, Hashtable exp) {
0N/A return right.checkValue(env, ctx, vset, exp);
0N/A }
0N/A
0N/A /**
0N/A * Simplify
0N/A */
0N/A Expression simplify() {
0N/A switch (right.op) {
0N/A case BYTEVAL:
0N/A case CHARVAL:
0N/A case SHORTVAL:
0N/A case INTVAL: {
0N/A int value = ((IntegerExpression)right).value;
0N/A switch (type.getTypeCode()) {
0N/A case TC_BYTE: return new ByteExpression(right.where, (byte)value);
0N/A case TC_CHAR: return new CharExpression(right.where, (char)value);
0N/A case TC_SHORT: return new ShortExpression(right.where, (short)value);
0N/A case TC_INT: return new IntExpression(right.where, (int)value);
0N/A case TC_LONG: return new LongExpression(right.where, (long)value);
0N/A case TC_FLOAT: return new FloatExpression(right.where, (float)value);
0N/A case TC_DOUBLE: return new DoubleExpression(right.where, (double)value);
0N/A }
0N/A break;
0N/A }
0N/A case LONGVAL: {
0N/A long value = ((LongExpression)right).value;
0N/A switch (type.getTypeCode()) {
0N/A case TC_BYTE: return new ByteExpression(right.where, (byte)value);
0N/A case TC_CHAR: return new CharExpression(right.where, (char)value);
0N/A case TC_SHORT: return new ShortExpression(right.where, (short)value);
0N/A case TC_INT: return new IntExpression(right.where, (int)value);
0N/A case TC_FLOAT: return new FloatExpression(right.where, (float)value);
0N/A case TC_DOUBLE: return new DoubleExpression(right.where, (double)value);
0N/A }
0N/A break;
0N/A }
0N/A case FLOATVAL: {
0N/A float value = ((FloatExpression)right).value;
0N/A switch (type.getTypeCode()) {
0N/A case TC_BYTE: return new ByteExpression(right.where, (byte)value);
0N/A case TC_CHAR: return new CharExpression(right.where, (char)value);
0N/A case TC_SHORT: return new ShortExpression(right.where, (short)value);
0N/A case TC_INT: return new IntExpression(right.where, (int)value);
0N/A case TC_LONG: return new LongExpression(right.where, (long)value);
0N/A case TC_DOUBLE: return new DoubleExpression(right.where, (double)value);
0N/A }
0N/A break;
0N/A }
0N/A case DOUBLEVAL: {
0N/A double value = ((DoubleExpression)right).value;
0N/A switch (type.getTypeCode()) {
0N/A case TC_BYTE: return new ByteExpression(right.where, (byte)value);
0N/A case TC_CHAR: return new CharExpression(right.where, (char)value);
0N/A case TC_SHORT: return new ShortExpression(right.where, (short)value);
0N/A case TC_INT: return new IntExpression(right.where, (int)value);
0N/A case TC_LONG: return new LongExpression(right.where, (long)value);
0N/A case TC_FLOAT: return new FloatExpression(right.where, (float)value);
0N/A }
0N/A break;
0N/A }
0N/A }
0N/A return this;
0N/A }
0N/A
0N/A /**
0N/A * Check if the expression is equal to a value
0N/A */
0N/A public boolean equals(int i) {
0N/A return right.equals(i);
0N/A }
0N/A public boolean equals(boolean b) {
0N/A return right.equals(b);
0N/A }
0N/A
0N/A /**
0N/A * Inline
0N/A */
0N/A public Expression inline(Environment env, Context ctx) {
0N/A // super.inline throws away the op.
0N/A // This is sometimes incorrect, since casts can have side effects.
0N/A if (right.type.inMask(TM_REFERENCE) && type.inMask(TM_REFERENCE)) {
0N/A try {
0N/A if (!env.implicitCast(right.type, type))
0N/A return inlineValue(env, ctx);
0N/A } catch (ClassNotFound e) {
0N/A throw new CompilerError(e);
0N/A }
0N/A }
0N/A return super.inline(env, ctx);
0N/A }
0N/A
0N/A /**
0N/A * Code
0N/A */
0N/A public void codeValue(Environment env, Context ctx, Assembler asm) {
0N/A right.codeValue(env, ctx, asm);
0N/A codeConversion(env, ctx, asm, right.type, type);
0N/A }
0N/A
0N/A /**
0N/A * Print
0N/A */
0N/A public void print(PrintStream out) {
0N/A out.print("(" + opNames[op] + " " + type.toString() + " ");
0N/A right.print(out);
0N/A out.print(")");
0N/A }
0N/A}