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41 File Name: 11.13.2-4.js
42 ECMA Section: 11.13.2 Compound Assignment: %=
45 *= /= %= += -= <<= >>= >>>= &= ^= |=
47 11.13.2 Compound assignment ( op= )
49 The production AssignmentExpression :
50 LeftHandSideExpression @ = AssignmentExpression, where @ represents one of
51 the operators indicated above, is evaluated as follows:
53 1. Evaluate LeftHandSideExpression.
54 2. Call GetValue(Result(1)).
55 3. Evaluate AssignmentExpression.
56 4. Call GetValue(Result(3)).
57 5. Apply operator @ to Result(2) and Result(4).
58 6. Call PutValue(Result(1), Result(5)).
61 Author: christine@netscape.com
62 Date: 12 november 1997
64 var SECTION = "11.13.2-3";
65 var VERSION = "ECMA_1";
68 writeHeaderToLog( SECTION + " Compound Assignment: +=");
70 // If either operand is NaN, result is NaN
72 new TestCase( SECTION,
73 "VAR1 = NaN; VAR2=1; VAR1 %= VAR2",
75 eval("VAR1 = Number.NaN; VAR2=1; VAR1 %= VAR2") );
77 new TestCase( SECTION,
78 "VAR1 = NaN; VAR2=1; VAR1 %= VAR2; VAR1",
80 eval("VAR1 = Number.NaN; VAR2=1; VAR1 %= VAR2; VAR1") );
82 new TestCase( SECTION,
83 "VAR1 = NaN; VAR2=0; VAR1 %= VAR2",
85 eval("VAR1 = Number.NaN; VAR2=0; VAR1 %= VAR2") );
87 new TestCase( SECTION,
88 "VAR1 = NaN; VAR2=0; VAR1 %= VAR2; VAR1",
90 eval("VAR1 = Number.NaN; VAR2=0; VAR1 %= VAR2; VAR1") );
92 new TestCase( SECTION,
93 "VAR1 = 0; VAR2=NaN; VAR1 %= VAR2",
95 eval("VAR1 = 0; VAR2=Number.NaN; VAR1 %= VAR2") );
97 new TestCase( SECTION,
98 "VAR1 = 0; VAR2=NaN; VAR1 %= VAR2; VAR1",
100 eval("VAR1 = 0; VAR2=Number.NaN; VAR1 %= VAR2; VAR1") );
102 // if the dividend is infinity or the divisor is zero or both, the result is NaN
104 new TestCase( SECTION,
105 "VAR1 = Infinity; VAR2= Infinity; VAR1 %= VAR2; VAR1",
107 eval("VAR1 = Number.POSITIVE_INFINITY; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
109 new TestCase( SECTION,
110 "VAR1 = Infinity; VAR2= -Infinity; VAR1 %= VAR2; VAR1",
112 eval("VAR1 = Number.POSITIVE_INFINITY; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
114 new TestCase( SECTION,
115 "VAR1 =-Infinity; VAR2= Infinity; VAR1 %= VAR2; VAR1",
117 eval("VAR1 = Number.NEGATIVE_INFINITY; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
119 new TestCase( SECTION,
120 "VAR1 =-Infinity; VAR2=-Infinity; VAR1 %= VAR2; VAR1",
122 eval("VAR1 = Number.NEGATIVE_INFINITY; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
124 new TestCase( SECTION,
125 "VAR1 = 0; VAR2= Infinity; VAR2 %= VAR1",
127 eval("VAR1 = 0; VAR2 = Number.POSITIVE_INFINITY; VAR2 %= VAR1; VAR2") );
129 new TestCase( SECTION,
130 "VAR1 = -0; VAR2= Infinity; VAR2 %= VAR1",
132 eval("VAR1 = -0; VAR2 = Number.POSITIVE_INFINITY; VAR2 %= VAR1; VAR2") );
134 new TestCase( SECTION,
135 "VAR1 = -0; VAR2= -Infinity; VAR2 %= VAR1",
137 eval("VAR1 = -0; VAR2 = Number.NEGATIVE_INFINITY; VAR2 %= VAR1; VAR2") );
139 new TestCase( SECTION,
140 "VAR1 = 0; VAR2= -Infinity; VAR2 %= VAR1",
142 eval("VAR1 = 0; VAR2 = Number.NEGATIVE_INFINITY; VAR2 %= VAR1; VAR2") );
144 new TestCase( SECTION,
145 "VAR1 = 1; VAR2= Infinity; VAR2 %= VAR1",
147 eval("VAR1 = 1; VAR2 = Number.POSITIVE_INFINITY; VAR2 %= VAR1; VAR2") );
149 new TestCase( SECTION,
150 "VAR1 = -1; VAR2= Infinity; VAR2 %= VAR1",
152 eval("VAR1 = -1; VAR2 = Number.POSITIVE_INFINITY; VAR2 %= VAR1; VAR2") );
154 new TestCase( SECTION,
155 "VAR1 = -1; VAR2= -Infinity; VAR2 %= VAR1",
157 eval("VAR1 = -1; VAR2 = Number.NEGATIVE_INFINITY; VAR2 %= VAR1; VAR2") );
159 new TestCase( SECTION,
160 "VAR1 = 1; VAR2= -Infinity; VAR2 %= VAR1",
162 eval("VAR1 = 1; VAR2 = Number.NEGATIVE_INFINITY; VAR2 %= VAR1; VAR2") );
164 new TestCase( SECTION,
165 "VAR1 = 0; VAR2= 0; VAR1 %= VAR2",
167 eval("VAR1 = 0; VAR2 = 0; VAR1 %= VAR2; VAR1") );
169 new TestCase( SECTION,
170 "VAR1 = 0; VAR2= -0; VAR1 %= VAR2",
172 eval("VAR1 = 0; VAR2 = -0; VAR1 %= VAR2; VAR1") );
174 new TestCase( SECTION,
175 "VAR1 = -0; VAR2= 0; VAR1 %= VAR2",
177 eval("VAR1 = -0; VAR2 = 0; VAR1 %= VAR2; VAR1") );
179 new TestCase( SECTION,
180 "VAR1 = -0; VAR2= -0; VAR1 %= VAR2",
182 eval("VAR1 = -0; VAR2 = -0; VAR1 %= VAR2; VAR1") );
184 new TestCase( SECTION,
185 "VAR1 = 1; VAR2= 0; VAR1 %= VAR2",
187 eval("VAR1 = 1; VAR2 = 0; VAR1 %= VAR2; VAR1") );
189 new TestCase( SECTION,
190 "VAR1 = 1; VAR2= -0; VAR1 %= VAR2",
192 eval("VAR1 = 1; VAR2 = -0; VAR1 %= VAR2; VAR1") );
194 new TestCase( SECTION,
195 "VAR1 = -1; VAR2= 0; VAR1 %= VAR2",
197 eval("VAR1 = -1; VAR2 = 0; VAR1 %= VAR2; VAR1") );
199 new TestCase( SECTION,
200 "VAR1 = -1; VAR2= -0; VAR1 %= VAR2",
202 eval("VAR1 = -1; VAR2 = -0; VAR1 %= VAR2; VAR1") );
204 // if the dividend is finite and the divisor is an infinity, the result equals the dividend.
206 new TestCase( SECTION,
207 "VAR1 = 0; VAR2= Infinity; VAR1 %= VAR2;VAR1",
209 eval("VAR1 = 0; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
211 new TestCase( SECTION,
212 "VAR1 = -0; VAR2= Infinity; VAR1 %= VAR2;VAR1",
214 eval("VAR1 = -0; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
216 new TestCase( SECTION,
217 "VAR1 = -0; VAR2= -Infinity; VAR1 %= VAR2;VAR1",
219 eval("VAR1 = -0; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
221 new TestCase( SECTION,
222 "VAR1 = 0; VAR2= -Infinity; VAR1 %= VAR2;VAR1",
224 eval("VAR1 = 0; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
226 new TestCase( SECTION,
227 "VAR1 = 1; VAR2= Infinity; VAR1 %= VAR2;VAR1",
229 eval("VAR1 = 1; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
231 new TestCase( SECTION,
232 "VAR1 = -1; VAR2= Infinity; VAR1 %= VAR2;VAR1",
234 eval("VAR1 = -1; VAR2 = Number.POSITIVE_INFINITY; VAR1 %= VAR2; VAR1") );
236 new TestCase( SECTION,
237 "VAR1 = -1; VAR2= -Infinity; VAR1 %= VAR2;VAR1",
239 eval("VAR1 = -1; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
241 new TestCase( SECTION,
242 "VAR1 = 1; VAR2= -Infinity; VAR1 %= VAR2;VAR1",
244 eval("VAR1 = 1; VAR2 = Number.NEGATIVE_INFINITY; VAR1 %= VAR2; VAR1") );
246 // if the dividend is a zero and the divisor is finite, the result is the same as the dividend
248 new TestCase( SECTION,
249 "VAR1 = 0; VAR2= 1; VAR1 %= VAR2; VAR1",
251 eval("VAR1 = 0; VAR2 = 1; VAR1 %= VAR2; VAR1") );
253 new TestCase( SECTION,
254 "VAR1 = -0; VAR2= 1; VAR1 %= VAR2; VAR1",
256 eval("VAR1 = -0; VAR2 = 1; VAR1 %= VAR2; VAR1") );
258 new TestCase( SECTION,
259 "VAR1 = -0; VAR2= -1; VAR1 %= VAR2; VAR1",
261 eval("VAR1 = -0; VAR2 = -1; VAR1 %= VAR2; VAR1") );
263 new TestCase( SECTION,
264 "VAR1 = 0; VAR2= -1; VAR1 %= VAR2; VAR1",
266 eval("VAR1 = 0; VAR2 = -1; VAR1 %= VAR2; VAR1") );
269 new TestCase( SECTION,
270 "VAR1 = 1000; VAR2 = '10', VAR1 %= VAR2; VAR1",
272 eval("VAR1 = 1000; VAR2 = '10', VAR1 %= VAR2; VAR1") );
274 new TestCase( SECTION,
275 "VAR1 = '1000'; VAR2 = 10, VAR1 %= VAR2; VAR1",
277 eval("VAR1 = '1000'; VAR2 = 10, VAR1 %= VAR2; VAR1") );
279 new TestCase( SECTION, "VAR1 = 10; VAR2 = '0XFF', VAR1 %= VAR2", 2550, eval("VAR1 = 10; VAR2 = '0XFF', VAR1 %= VAR2") );
280 new TestCase( SECTION, "VAR1 = '0xFF'; VAR2 = 0xA, VAR1 %= VAR2", 2550, eval("VAR1 = '0XFF'; VAR2 = 0XA, VAR1 %= VAR2") );
282 new TestCase( SECTION, "VAR1 = '10'; VAR2 = '255', VAR1 %= VAR2", 2550, eval("VAR1 = '10'; VAR2 = '255', VAR1 %= VAR2") );
283 new TestCase( SECTION, "VAR1 = '10'; VAR2 = '0XFF', VAR1 %= VAR2", 2550, eval("VAR1 = '10'; VAR2 = '0XFF', VAR1 %= VAR2") );
284 new TestCase( SECTION, "VAR1 = '0xFF'; VAR2 = 0xA, VAR1 %= VAR2", 2550, eval("VAR1 = '0XFF'; VAR2 = 0XA, VAR1 %= VAR2") );
287 new TestCase( SECTION, "VAR1 = true; VAR2 = false; VAR1 %= VAR2", 0, eval("VAR1 = true; VAR2 = false; VAR1 %= VAR2") );
288 new TestCase( SECTION, "VAR1 = true; VAR2 = true; VAR1 %= VAR2", 1, eval("VAR1 = true; VAR2 = true; VAR1 %= VAR2") );
291 new TestCase( SECTION, "VAR1 = new Boolean(true); VAR2 = 10; VAR1 %= VAR2;VAR1", 10, eval("VAR1 = new Boolean(true); VAR2 = 10; VAR1 %= VAR2; VAR1") );
292 new TestCase( SECTION, "VAR1 = new Number(11); VAR2 = 10; VAR1 %= VAR2; VAR1", 110, eval("VAR1 = new Number(11); VAR2 = 10; VAR1 %= VAR2; VAR1") );
293 new TestCase( SECTION, "VAR1 = new Number(11); VAR2 = new Number(10); VAR1 %= VAR2", 110, eval("VAR1 = new Number(11); VAR2 = new Number(10); VAR1 %= VAR2") );
294 new TestCase( SECTION, "VAR1 = new String('15'); VAR2 = new String('0xF'); VAR1 %= VAR2", 255, eval("VAR1 = String('15'); VAR2 = new String('0xF'); VAR1 %= VAR2") );