| /* |
| * Copyright (c) 1994, 2003, 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 sun.tools.tree; |
| |
| import sun.tools.java.*; |
| import sun.tools.asm.Assembler; |
| |
| /** |
| * WARNING: The contents of this source file are not part of any |
| * supported API. Code that depends on them does so at its own risk: |
| * they are subject to change or removal without notice. |
| */ |
| public |
| class IntegerExpression extends ConstantExpression { |
| int value; |
| |
| /** |
| * Constructor |
| */ |
| IntegerExpression(int op, long where, Type type, int value) { |
| super(op, where, type); |
| this.value = value; |
| } |
| |
| /** |
| * See if this number fits in the given type. |
| */ |
| public boolean fitsType(Environment env, Context ctx, Type t) { |
| if (this.type.isType(TC_CHAR)) { |
| // A char constant is not really an int constant, |
| // so do not report that 'a' fits in a byte or short, |
| // even if its value is in fact 7-bit ascii. See JLS 5.2. |
| return super.fitsType(env, ctx, t); |
| } |
| switch (t.getTypeCode()) { |
| case TC_BYTE: |
| return value == (byte)value; |
| case TC_SHORT: |
| return value == (short)value; |
| case TC_CHAR: |
| return value == (char)value; |
| } |
| return super.fitsType(env, ctx, t); |
| } |
| |
| /** |
| * Get the value |
| */ |
| public Object getValue() { |
| return value; |
| } |
| |
| /** |
| * Check if the expression is equal to a value |
| */ |
| public boolean equals(int i) { |
| return value == i; |
| } |
| |
| /** |
| * Check if the expression is equal to its default static value |
| */ |
| public boolean equalsDefault() { |
| return value == 0; |
| } |
| |
| /** |
| * Code |
| */ |
| public void codeValue(Environment env, Context ctx, Assembler asm) { |
| asm.add(where, opc_ldc, value); |
| } |
| } |