001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.transformer.bytecode.literal; 020 021import lucee.runtime.op.Caster; 022import lucee.transformer.bytecode.BytecodeContext; 023import lucee.transformer.bytecode.Literal; 024import lucee.transformer.bytecode.Position; 025import lucee.transformer.bytecode.expression.ExprBoolean; 026import lucee.transformer.bytecode.expression.ExpressionBase; 027import lucee.transformer.bytecode.util.Types; 028 029import org.objectweb.asm.Opcodes; 030import org.objectweb.asm.Type; 031import org.objectweb.asm.commons.GeneratorAdapter; 032 033/** 034 * Literal Boolean 035 */ 036public final class LitBoolean extends ExpressionBase implements Literal,ExprBoolean { 037 038 /** 039 * @see java.lang.Object#toString() 040 */ 041 @Override 042 public String toString() { 043 return b+""; 044 } 045 046 private boolean b; 047 048 public static final LitBoolean TRUE=new LitBoolean(true,null,null); 049 public static final LitBoolean FALSE=new LitBoolean(false,null,null); 050 051 public static ExprBoolean toExprBoolean(boolean b, Position start,Position end) { 052 return new LitBoolean(b,start,end); 053 } 054 055 public static ExprBoolean toExprBoolean(boolean b) { 056 return new LitBoolean(b,null,null); 057 } 058 059 /** 060 * constructor of the class 061 * @param b 062 * @param line 063 */ 064 public LitBoolean(boolean b, Position start,Position end) { 065 super(start,end); 066 this.b=b; 067 } 068 069 /** 070 * @return return value as double value 071 */ 072 public double getDoubleValue() { 073 return Caster.toDoubleValue(b); 074 } 075 076 /** 077 * @return return value as Double Object 078 */ 079 public Double getDouble() { 080 return Caster.toDouble(b); 081 } 082 083 /** 084 * @see lucee.transformer.bytecode.Literal#getString() 085 */ 086 public String getString() { 087 return Caster.toString(b); 088 } 089 090 /** 091 * @return return value as a Boolean Object 092 */ 093 public Boolean getBoolean() { 094 return Caster.toBoolean(b); 095 } 096 097 /** 098 * @return return value as a boolean value 099 */ 100 public boolean getBooleanValue() { 101 return b; 102 } 103 104 /** 105 * 106 * @see lucee.transformer.bytecode.expression.ExpressionBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter, int) 107 */ 108 public Type _writeOut(BytecodeContext bc, int mode) { 109 GeneratorAdapter adapter = bc.getAdapter(); 110 111 if(mode==MODE_REF) { 112 adapter.getStatic(Types.BOOLEAN, b?"TRUE":"FALSE", Types.BOOLEAN); 113 return Types.BOOLEAN; 114 } 115 adapter.visitInsn(b?Opcodes.ICONST_1:Opcodes.ICONST_0); 116 return Types.BOOLEAN_VALUE; 117 } 118 119 /** 120 * @see lucee.transformer.bytecode.Literal#getDouble(java.lang.Double) 121 */ 122 public Double getDouble(Double defaultValue) { 123 return getDouble(); 124 } 125 126 /** 127 * @see lucee.transformer.bytecode.Literal#getBoolean(java.lang.Boolean) 128 */ 129 public Boolean getBoolean(Boolean defaultValue) { 130 return getBoolean(); 131 } 132 133 /* * 134 * @see lucee.transformer.bytecode.expression.Expression#getType() 135 * / 136 public int getType() { 137 return Types._BOOLEAN; 138 }*/ 139}