1.1 --- a/vm/src/main/java/org/apidesign/vm4brwsr/VarType.java Tue Feb 26 14:55:55 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,110 +0,0 @@
1.4 -/**
1.5 - * Back 2 Browser Bytecode Translator
1.6 - * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 - *
1.8 - * This program is free software: you can redistribute it and/or modify
1.9 - * it under the terms of the GNU General Public License as published by
1.10 - * the Free Software Foundation, version 2 of the License.
1.11 - *
1.12 - * This program is distributed in the hope that it will be useful,
1.13 - * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 - * GNU General Public License for more details.
1.16 - *
1.17 - * You should have received a copy of the GNU General Public License
1.18 - * along with this program. Look for COPYING file in the top folder.
1.19 - * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 - */
1.21 -package org.apidesign.vm4brwsr;
1.22 -
1.23 -import org.apidesign.javap.RuntimeConstants;
1.24 -
1.25 -final class VarType {
1.26 - public static final int INTEGER = 0;
1.27 - public static final int LONG = 1;
1.28 - public static final int FLOAT = 2;
1.29 - public static final int DOUBLE = 3;
1.30 - public static final int REFERENCE = 4;
1.31 -
1.32 - public static final int LAST = REFERENCE;
1.33 -
1.34 - private VarType() {
1.35 - }
1.36 -
1.37 - public static boolean isCategory2(final int varType) {
1.38 - return (varType == LONG) || (varType == DOUBLE);
1.39 - }
1.40 -
1.41 - public static int fromStackMapType(final int smType) {
1.42 - switch (smType & 0xff) {
1.43 - case RuntimeConstants.ITEM_Integer:
1.44 - return VarType.INTEGER;
1.45 - case RuntimeConstants.ITEM_Float:
1.46 - return VarType.FLOAT;
1.47 - case RuntimeConstants.ITEM_Double:
1.48 - return VarType.DOUBLE;
1.49 - case RuntimeConstants.ITEM_Long:
1.50 - return VarType.LONG;
1.51 - case RuntimeConstants.ITEM_Null:
1.52 - case RuntimeConstants.ITEM_InitObject:
1.53 - case RuntimeConstants.ITEM_Object:
1.54 - case RuntimeConstants.ITEM_NewObject:
1.55 - return VarType.REFERENCE;
1.56 -
1.57 - case RuntimeConstants.ITEM_Bogus:
1.58 - /* unclear how to handle for now */
1.59 - default:
1.60 - throw new IllegalStateException("Unhandled stack map type");
1.61 - }
1.62 - }
1.63 -
1.64 - public static int fromConstantType(final byte constantTag) {
1.65 - switch (constantTag) {
1.66 - case RuntimeConstants.CONSTANT_INTEGER:
1.67 - return VarType.INTEGER;
1.68 - case RuntimeConstants.CONSTANT_FLOAT:
1.69 - return VarType.FLOAT;
1.70 - case RuntimeConstants.CONSTANT_LONG:
1.71 - return VarType.LONG;
1.72 - case RuntimeConstants.CONSTANT_DOUBLE:
1.73 - return VarType.DOUBLE;
1.74 -
1.75 - case RuntimeConstants.CONSTANT_CLASS:
1.76 - case RuntimeConstants.CONSTANT_UTF8:
1.77 - case RuntimeConstants.CONSTANT_UNICODE:
1.78 - case RuntimeConstants.CONSTANT_STRING:
1.79 - return VarType.REFERENCE;
1.80 -
1.81 - case RuntimeConstants.CONSTANT_FIELD:
1.82 - case RuntimeConstants.CONSTANT_METHOD:
1.83 - case RuntimeConstants.CONSTANT_INTERFACEMETHOD:
1.84 - case RuntimeConstants.CONSTANT_NAMEANDTYPE:
1.85 - /* unclear how to handle for now */
1.86 - default:
1.87 - throw new IllegalStateException("Unhandled constant tag");
1.88 - }
1.89 - }
1.90 -
1.91 - public static int fromFieldType(final char fieldType) {
1.92 - switch (fieldType) {
1.93 - case 'B':
1.94 - case 'C':
1.95 - case 'S':
1.96 - case 'Z':
1.97 - case 'I':
1.98 - return VarType.INTEGER;
1.99 - case 'J':
1.100 - return VarType.LONG;
1.101 - case 'F':
1.102 - return VarType.FLOAT;
1.103 - case 'D':
1.104 - return VarType.DOUBLE;
1.105 - case 'L':
1.106 - case '[':
1.107 - return VarType.REFERENCE;
1.108 -
1.109 - default:
1.110 - throw new IllegalStateException("Unhandled field type");
1.111 - }
1.112 - }
1.113 -}