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32 package org.jruby;
33
34 import org.jruby.runtime.CallbackFactory;
35 import org.jruby.runtime.ClassIndex;
36 import org.jruby.runtime.ObjectAllocator;
37 import org.jruby.runtime.builtin.IRubyObject;
38 import org.jruby.runtime.marshal.MarshalStream;
39
40
44 public class RubyBoolean extends RubyObject {
45 private final Ruby runtime;
46
47 private final boolean value;
48
49 public RubyBoolean(Ruby runtime, boolean value) {
50 super(runtime, null, false); this.value = value;
53 this.runtime = runtime;
54 }
55
56 public int getNativeTypeIndex() {
57 return value ? ClassIndex.TRUE : ClassIndex.FALSE;
58 }
59
60 public Ruby getRuntime() {
61 return runtime;
62 }
63
64 public boolean isImmediate() {
65 return true;
66 }
67
68 public Class  getJavaClass() {
69 return Boolean.TYPE;
70 }
71
72 public RubyClass getMetaClass() {
73 return value
74 ? getRuntime().getClass("TrueClass")
75 : getRuntime().getClass("FalseClass");
76 }
77
78 public boolean isTrue() {
79 return value;
80 }
81
82 public boolean isFalse() {
83 return !value;
84 }
85
86 public RubyFixnum id() {
87 return getRuntime().newFixnum(value ? 2 : 0);
88 }
89
90 public static RubyClass createFalseClass(Ruby runtime) {
91 RubyClass falseClass = runtime.defineClass("FalseClass", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);
92 falseClass.index = ClassIndex.FALSE;
93
94 CallbackFactory fact = runtime.callbackFactory(RubyBoolean.class);
95
96 falseClass.defineFastMethod("type", fact.getFastMethod("type"));
97 falseClass.defineFastMethod("&", fact.getFastMethod("false_and", RubyKernel.IRUBY_OBJECT));
98 falseClass.defineFastMethod("|", fact.getFastMethod("false_or", RubyKernel.IRUBY_OBJECT));
99 falseClass.defineFastMethod("^", fact.getFastMethod("false_xor", RubyKernel.IRUBY_OBJECT));
100 falseClass.defineFastMethod("id", fact.getFastMethod("false_id"));
101 falseClass.defineFastMethod("to_s", fact.getFastMethod("false_to_s"));
102
103 runtime.defineGlobalConstant("FALSE", runtime.getFalse());
104
105 return falseClass;
106 }
107
108 public static RubyClass createTrueClass(Ruby runtime) {
109 RubyClass trueClass = runtime.defineClass("TrueClass", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);
110 trueClass.index = ClassIndex.TRUE;
111
112 CallbackFactory fact = runtime.callbackFactory(RubyBoolean.class);
113
114 trueClass.defineFastMethod("type", fact.getFastMethod("type"));
115 trueClass.defineFastMethod("&", fact.getFastMethod("true_and", RubyKernel.IRUBY_OBJECT));
116 trueClass.defineFastMethod("|", fact.getFastMethod("true_or", RubyKernel.IRUBY_OBJECT));
117 trueClass.defineFastMethod("^", fact.getFastMethod("true_xor", RubyKernel.IRUBY_OBJECT));
118 trueClass.defineFastMethod("id", fact.getFastMethod("true_id"));
119 trueClass.defineFastMethod("to_s", fact.getFastMethod("true_to_s"));
120
121 runtime.defineGlobalConstant("TRUE", runtime.getTrue());
122
123 return trueClass;
124 }
125
126 public static RubyBoolean newBoolean(Ruby runtime, boolean value) {
127 return value ? runtime.getTrue() : runtime.getFalse();
128 }
129
130
134 public RubyClass type() {
135 return getMetaClass();
136 }
137
138 public IRubyObject false_and(IRubyObject oth) {
139 return this;
140 }
141
142 public IRubyObject false_or(IRubyObject oth) {
143 return oth.isTrue() ? getRuntime().getTrue() : this;
144 }
145
146 public IRubyObject false_xor(IRubyObject oth) {
147 return oth.isTrue() ? getRuntime().getTrue() : this;
148 }
149
150 public IRubyObject false_id() {
151 return RubyFixnum.zero(getRuntime());
152 }
153
154 public IRubyObject false_to_s() {
155 return getRuntime().newString("false");
156 }
157
158 public IRubyObject true_and(IRubyObject oth) {
159 return oth.isTrue() ? this : getRuntime().getFalse();
160 }
161
162 public IRubyObject true_or(IRubyObject oth) {
163 return this;
164 }
165
166 public IRubyObject true_xor(IRubyObject oth) {
167 return oth.isTrue() ? getRuntime().getFalse() : this;
168 }
169
170 public IRubyObject true_id() {
171 return getRuntime().newFixnum(2);
172 }
173
174 public IRubyObject true_to_s() {
175 return getRuntime().newString("true");
176 }
177
178 public void marshalTo(MarshalStream output) throws java.io.IOException {
179 output.write(isTrue() ? 'T' : 'F');
180 }
181 }
182
183 |
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