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1
28
29 package com.caucho.es.parser;
30
31 import com.caucho.es.ESBase;
32 import com.caucho.es.ESBoolean;
33 import com.caucho.es.ESException;
34 import com.caucho.es.ESWrapperException;
35
36 import java.io.IOException  ;
37
38
41 class BooleanBinaryExpr extends BinaryExpr {
42 private BooleanBinaryExpr(Block block, Expr left, Expr right, int op)
43 {
44 super(block, left, right, op);
45 }
46
47 static Expr create(Block block, Expr left, Expr right, int op)
48 throws ESException
49 {
50 if (! (left instanceof LiteralExpr) || ! (right instanceof LiteralExpr))
51 return new BooleanBinaryExpr(block, left, right, op);
52
53 ESBase lvalue = ((LiteralExpr) left).getLiteral();
54 ESBase rvalue = ((LiteralExpr) right).getLiteral();
55 boolean value;
56
57 try {
58 switch (op) {
59 case '<':
60 value = lvalue.lessThan(rvalue, false);
61 break;
62
63 case '>':
64 value = rvalue.lessThan(lvalue, false);
65 break;
66
67 case Lexer.LEQ:
68 value = rvalue.lessThan(lvalue, true);
69 break;
70
71 case Lexer.GEQ:
72 value = lvalue.lessThan(rvalue, true);
73 break;
74
75 case Lexer.EQ:
76 value = lvalue.ecmaEquals(rvalue);
77 break;
78
79 case Lexer.NEQ:
80 value = ! lvalue.ecmaEquals(rvalue);
81 break;
82
83 case Lexer.STRICT_EQ:
84 value = lvalue.equals(rvalue);
85 break;
86
87 case Lexer.STRICT_NEQ:
88 value = ! lvalue.equals(rvalue);
89 break;
90
91 default:
92 throw new RuntimeException ("foo");
93 }
94 } catch (Throwable e) {
95 throw new ESWrapperException(e);
96 }
97
98 return new LiteralExpr(block, ESBoolean.create(value));
99 }
100
101 int getType()
102 {
103 return TYPE_BOOLEAN;
104 }
105
106 void printBooleanImpl() throws IOException
107 {
108 switch (op) {
109 case '<':
110 if (left.getType() == TYPE_INTEGER && right.getType() == TYPE_INTEGER) {
111 cl.print("(");
112 left.printInt32();
113 cl.print("<");
114 right.printInt32();
115 cl.print(")");
116 } else if (left.isNumeric() || right.isNumeric()) {
117 cl.print("(");
118 left.printNum();
119 cl.print("<");
120 right.printNum();
121 cl.print(")");
122 } else {
123 left.print();
124 cl.print(".lessThan(");
125 right.print();
126 cl.print(", false)");
127 }
128 break;
129
130 case '>':
131 if (left.isNumeric() || right.isNumeric()) {
132 cl.print("(");
133 left.printNum();
134 cl.print(">");
135 right.printNum();
136 cl.print(")");
137 } else {
138 left.print();
139 cl.print(".greaterThan(");
140 right.print();
141 cl.print(", false)");
142 }
143 break;
144
145 case Lexer.LEQ:
146 if (left.isNumeric() || right.isNumeric()) {
147 cl.print("(");
148 left.printNum();
149 cl.print("<=");
150 right.printNum();
151 cl.print(")");
152 } else {
153 left.print();
154 cl.print(".greaterThan(");
155 right.print();
156 cl.print(", true)");
157 }
158 break;
159
160 case Lexer.GEQ:
161 if (left.isNumeric() || right.isNumeric()) {
162 cl.print("(");
163 left.printNum();
164 cl.print(">=");
165 right.printNum();
166 cl.print(")");
167 } else {
168 left.print();
169 cl.print(".lessThan(");
170 right.print();
171 cl.print(", true)");
172 }
173 break;
174
175 case Lexer.EQ:
176 if (left.isNumeric() && right.isNumeric()) {
177 cl.print("(");
178 left.printNum();
179 cl.print("==");
180 right.printNum();
181 cl.print(")");
182 } else {
183 left.print();
184 cl.print(".ecmaEquals(");
185 right.print();
186 cl.print(")");
187 }
188 break;
189
190 case Lexer.NEQ:
191 if (left.isNumeric() && right.isNumeric()) {
192 cl.print("(");
193 left.printNum();
194 cl.print("!=");
195 right.printNum();
196 cl.print(")");
197 } else {
198 cl.print("!");
199 left.print();
200 cl.print(".ecmaEquals(");
201 right.print();
202 cl.print(")");
203 }
204 break;
205
206 case Lexer.STRICT_EQ:
207 if (left.isNumeric() && right.isNumeric()) {
208 cl.print("(");
209 left.printNum();
210 cl.print("==");
211 right.printNum();
212 cl.print(")");
213 } else {
214 left.print();
215 cl.print(".equals(");
216 right.print();
217 cl.print(")");
218 }
219 break;
220
221 case Lexer.STRICT_NEQ:
222 if (left.isNumeric() && right.isNumeric()) {
223 cl.print("(");
224 left.printNum();
225 cl.print("!=");
226 right.printNum();
227 cl.print(")");
228 } else {
229 cl.print("!");
230 left.print();
231 cl.print(".equals(");
232 right.print();
233 cl.print(")");
234 }
235 break;
236
237 default:
238 throw new IOException ("foo");
239 }
240 }
241 }
242
243
244 |
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