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1 // Copyright 2012 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 // Flags: --allow-natives-syntax --noenable-sse2 | |
29 | |
30 // Helper | |
31 function assertInstance(o, f) { | |
32 assertSame(o.constructor, f); | |
33 assertInstanceof(o, f); | |
34 } | |
35 | |
36 // This is a regression test for overlapping key and value registers. | |
37 function f(a) { | |
38 a[0] = 0; | |
39 a[1] = 0; | |
40 } | |
41 | |
42 var a = new Int32Array(2); | |
43 for (var i = 0; i < 5; i++) { | |
44 f(a); | |
45 } | |
46 %OptimizeFunctionOnNextCall(f); | |
47 f(a); | |
48 | |
49 assertEquals(0, a[0]); | |
50 assertEquals(0, a[1]); | |
51 | |
52 // Test derivation from an ArrayBuffer | |
53 var ab = new ArrayBuffer(12); | |
54 assertInstance(ab, ArrayBuffer); | |
55 var derived_uint8 = new Uint8Array(ab); | |
56 assertInstance(derived_uint8, Uint8Array); | |
57 assertSame(ab, derived_uint8.buffer); | |
58 assertEquals(12, derived_uint8.length); | |
59 assertEquals(12, derived_uint8.byteLength); | |
60 assertEquals(0, derived_uint8.byteOffset); | |
61 assertEquals(1, derived_uint8.BYTES_PER_ELEMENT); | |
62 var derived_uint8_2 = new Uint8Array(ab,7); | |
63 assertInstance(derived_uint8_2, Uint8Array); | |
64 assertSame(ab, derived_uint8_2.buffer); | |
65 assertEquals(5, derived_uint8_2.length); | |
66 assertEquals(5, derived_uint8_2.byteLength); | |
67 assertEquals(7, derived_uint8_2.byteOffset); | |
68 assertEquals(1, derived_uint8_2.BYTES_PER_ELEMENT); | |
69 var derived_int16 = new Int16Array(ab); | |
70 assertInstance(derived_int16, Int16Array); | |
71 assertSame(ab, derived_int16.buffer); | |
72 assertEquals(6, derived_int16.length); | |
73 assertEquals(12, derived_int16.byteLength); | |
74 assertEquals(0, derived_int16.byteOffset); | |
75 assertEquals(2, derived_int16.BYTES_PER_ELEMENT); | |
76 var derived_int16_2 = new Int16Array(ab,6); | |
77 assertInstance(derived_int16_2, Int16Array); | |
78 assertSame(ab, derived_int16_2.buffer); | |
79 assertEquals(3, derived_int16_2.length); | |
80 assertEquals(6, derived_int16_2.byteLength); | |
81 assertEquals(6, derived_int16_2.byteOffset); | |
82 assertEquals(2, derived_int16_2.BYTES_PER_ELEMENT); | |
83 var derived_uint32 = new Uint32Array(ab); | |
84 assertInstance(derived_uint32, Uint32Array); | |
85 assertSame(ab, derived_uint32.buffer); | |
86 assertEquals(3, derived_uint32.length); | |
87 assertEquals(12, derived_uint32.byteLength); | |
88 assertEquals(0, derived_uint32.byteOffset); | |
89 assertEquals(4, derived_uint32.BYTES_PER_ELEMENT); | |
90 var derived_uint32_2 = new Uint32Array(ab,4); | |
91 assertInstance(derived_uint32_2, Uint32Array); | |
92 assertSame(ab, derived_uint32_2.buffer); | |
93 assertEquals(2, derived_uint32_2.length); | |
94 assertEquals(8, derived_uint32_2.byteLength); | |
95 assertEquals(4, derived_uint32_2.byteOffset); | |
96 assertEquals(4, derived_uint32_2.BYTES_PER_ELEMENT); | |
97 var derived_uint32_3 = new Uint32Array(ab,4,1); | |
98 assertInstance(derived_uint32_3, Uint32Array); | |
99 assertSame(ab, derived_uint32_3.buffer); | |
100 assertEquals(1, derived_uint32_3.length); | |
101 assertEquals(4, derived_uint32_3.byteLength); | |
102 assertEquals(4, derived_uint32_3.byteOffset); | |
103 assertEquals(4, derived_uint32_3.BYTES_PER_ELEMENT); | |
104 var derived_float64 = new Float64Array(ab,0,1); | |
105 assertInstance(derived_float64, Float64Array); | |
106 assertSame(ab, derived_float64.buffer); | |
107 assertEquals(1, derived_float64.length); | |
108 assertEquals(8, derived_float64.byteLength); | |
109 assertEquals(0, derived_float64.byteOffset); | |
110 assertEquals(8, derived_float64.BYTES_PER_ELEMENT); | |
111 | |
112 // If a given byteOffset and length references an area beyond the end of the | |
113 // ArrayBuffer an exception is raised. | |
114 function abfunc3() { | |
115 new Uint32Array(ab,4,3); | |
116 } | |
117 assertThrows(abfunc3); | |
118 function abfunc4() { | |
119 new Uint32Array(ab,16); | |
120 } | |
121 assertThrows(abfunc4); | |
122 | |
123 // The given byteOffset must be a multiple of the element size of the specific | |
124 // type, otherwise an exception is raised. | |
125 function abfunc5() { | |
126 new Uint32Array(ab,5); | |
127 } | |
128 assertThrows(abfunc5); | |
129 | |
130 // If length is not explicitly specified, the length of the ArrayBuffer minus | |
131 // the byteOffset must be a multiple of the element size of the specific type, | |
132 // or an exception is raised. | |
133 var ab2 = new ArrayBuffer(13); | |
134 function abfunc6() { | |
135 new Uint32Array(ab2,4); | |
136 } | |
137 assertThrows(abfunc6); | |
138 | |
139 // Test that an array constructed without an array buffer creates one properly. | |
140 a = new Uint8Array(31); | |
141 assertEquals(a.byteLength, a.buffer.byteLength); | |
142 assertEquals(a.length, a.buffer.byteLength); | |
143 assertEquals(a.length * a.BYTES_PER_ELEMENT, a.buffer.byteLength); | |
144 a = new Int16Array(5); | |
145 assertEquals(a.byteLength, a.buffer.byteLength); | |
146 assertEquals(a.length * a.BYTES_PER_ELEMENT, a.buffer.byteLength); | |
147 a = new Float64Array(7); | |
148 assertEquals(a.byteLength, a.buffer.byteLength); | |
149 assertEquals(a.length * a.BYTES_PER_ELEMENT, a.buffer.byteLength); | |
150 | |
151 // Test that an implicitly created buffer is a valid buffer. | |
152 a = new Float64Array(7); | |
153 assertSame(a.buffer, (new Uint16Array(a.buffer)).buffer); | |
154 assertSame(a.buffer, (new Float32Array(a.buffer,4)).buffer); | |
155 assertSame(a.buffer, (new Int8Array(a.buffer,3,51)).buffer); | |
156 assertInstance(a.buffer, ArrayBuffer); | |
157 | |
158 // Test the correct behavior of the |BYTES_PER_ELEMENT| property. | |
159 a = new Int32Array(2); | |
160 assertEquals(4, a.BYTES_PER_ELEMENT); | |
161 a.BYTES_PER_ELEMENT = 42; | |
162 a = new Uint8Array(2); | |
163 assertEquals(1, a.BYTES_PER_ELEMENT); | |
164 a = new Int16Array(2); | |
165 assertEquals(2, a.BYTES_PER_ELEMENT); | |
166 | |
167 // Test Float64Arrays. | |
168 function get(a, index) { | |
169 return a[index]; | |
170 } | |
171 function set(a, index, value) { | |
172 a[index] = value; | |
173 } | |
174 function temp() { | |
175 var array = new Float64Array(2); | |
176 for (var i = 0; i < 5; i++) { | |
177 set(array, 0, 2.5); | |
178 assertEquals(2.5, array[0]); | |
179 } | |
180 %OptimizeFunctionOnNextCall(set); | |
181 set(array, 0, 2.5); | |
182 assertEquals(2.5, array[0]); | |
183 set(array, 1, 3.5); | |
184 assertEquals(3.5, array[1]); | |
185 for (var i = 0; i < 5; i++) { | |
186 assertEquals(2.5, get(array, 0)); | |
187 assertEquals(3.5, array[1]); | |
188 } | |
189 %OptimizeFunctionOnNextCall(get); | |
190 assertEquals(2.5, get(array, 0)); | |
191 assertEquals(3.5, get(array, 1)); | |
192 } | |
193 | |
194 // Test non-number parameters. | |
195 var array_with_length_from_non_number = new Int32Array("2"); | |
196 assertEquals(2, array_with_length_from_non_number.length); | |
197 | |
198 // Test loads and stores. | |
199 types = [Array, Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, | |
200 Uint32Array, Uint8ClampedArray, Float32Array, Float64Array]; | |
201 | |
202 test_result_nan = [NaN, 0, 0, 0, 0, 0, 0, 0, NaN, NaN]; | |
203 test_result_low_int = [-1, -1, 255, -1, 65535, -1, 0xFFFFFFFF, 0, -1, -1]; | |
204 test_result_low_double = [-1.25, -1, 255, -1, 65535, -1, 0xFFFFFFFF, 0, -1.25, -
1.25]; | |
205 test_result_middle = [253.75, -3, 253, 253, 253, 253, 253, 254, 253.75, 253.75]; | |
206 test_result_high_int = [256, 0, 0, 256, 256, 256, 256, 255, 256, 256]; | |
207 test_result_high_double = [256.25, 0, 0, 256, 256, 256, 256, 255, 256.25, 256.25
]; | |
208 | |
209 const kElementCount = 40; | |
210 | |
211 function test_load(array, sum) { | |
212 for (var i = 0; i < kElementCount; i++) { | |
213 sum += array[i]; | |
214 } | |
215 return sum; | |
216 } | |
217 | |
218 function test_load_const_key(array, sum) { | |
219 sum += array[0]; | |
220 sum += array[1]; | |
221 sum += array[2]; | |
222 return sum; | |
223 } | |
224 | |
225 function test_store(array, sum) { | |
226 for (var i = 0; i < kElementCount; i++) { | |
227 sum += array[i] = i+1; | |
228 } | |
229 return sum; | |
230 } | |
231 | |
232 function test_store_const_key(array, sum) { | |
233 sum += array[0] = 1; | |
234 sum += array[1] = 2; | |
235 sum += array[2] = 3; | |
236 return sum; | |
237 } | |
238 | |
239 function zero() { | |
240 return 0.0; | |
241 } | |
242 | |
243 function test_store_middle_tagged(array, sum) { | |
244 array[0] = 253.75; | |
245 return array[0]; | |
246 } | |
247 | |
248 function test_store_high_tagged(array, sum) { | |
249 array[0] = 256.25; | |
250 return array[0]; | |
251 } | |
252 | |
253 function test_store_middle_double(array, sum) { | |
254 array[0] = 253.75 + zero(); // + forces double type feedback | |
255 return array[0]; | |
256 } | |
257 | |
258 function test_store_high_double(array, sum) { | |
259 array[0] = 256.25 + zero(); // + forces double type feedback | |
260 return array[0]; | |
261 } | |
262 | |
263 function test_store_high_double(array, sum) { | |
264 array[0] = 256.25; | |
265 return array[0]; | |
266 } | |
267 | |
268 function test_store_low_int(array, sum) { | |
269 array[0] = -1; | |
270 return array[0]; | |
271 } | |
272 | |
273 function test_store_low_tagged(array, sum) { | |
274 array[0] = -1.25; | |
275 return array[0]; | |
276 } | |
277 | |
278 function test_store_low_double(array, sum) { | |
279 array[0] = -1.25 + zero(); // + forces double type feedback | |
280 return array[0]; | |
281 } | |
282 | |
283 function test_store_high_int(array, sum) { | |
284 array[0] = 256; | |
285 return array[0]; | |
286 } | |
287 | |
288 function test_store_nan(array, sum) { | |
289 array[0] = NaN; | |
290 return array[0]; | |
291 } | |
292 | |
293 const kRuns = 10; | |
294 | |
295 function run_test(test_func, array, expected_result) { | |
296 for (var i = 0; i < 5; i++) test_func(array, 0); | |
297 %OptimizeFunctionOnNextCall(test_func); | |
298 var sum = 0; | |
299 for (var i = 0; i < kRuns; i++) { | |
300 sum = test_func(array, sum); | |
301 } | |
302 assertEquals(expected_result, sum); | |
303 %DeoptimizeFunction(test_func); | |
304 %ClearFunctionTypeFeedback(test_func); | |
305 } | |
306 | |
307 function run_bounds_test(test_func, array, expected_result) { | |
308 assertEquals(undefined, a[kElementCount]); | |
309 a[kElementCount] = 456; | |
310 assertEquals(undefined, a[kElementCount]); | |
311 assertEquals(undefined, a[kElementCount+1]); | |
312 a[kElementCount+1] = 456; | |
313 assertEquals(undefined, a[kElementCount+1]); | |
314 } | |
315 | |
316 for (var t = 0; t < types.length; t++) { | |
317 var type = types[t]; | |
318 var a = new type(kElementCount); | |
319 | |
320 for (var i = 0; i < kElementCount; i++) { | |
321 a[i] = i; | |
322 } | |
323 | |
324 // Run test functions defined above. | |
325 run_test(test_load, a, 780 * kRuns); | |
326 run_test(test_load_const_key, a, 3 * kRuns); | |
327 run_test(test_store, a, 820 * kRuns); | |
328 run_test(test_store_const_key, a, 6 * kRuns); | |
329 run_test(test_store_low_int, a, test_result_low_int[t]); | |
330 run_test(test_store_low_double, a, test_result_low_double[t]); | |
331 run_test(test_store_low_tagged, a, test_result_low_double[t]); | |
332 run_test(test_store_high_int, a, test_result_high_int[t]); | |
333 run_test(test_store_nan, a, test_result_nan[t]); | |
334 run_test(test_store_middle_double, a, test_result_middle[t]); | |
335 run_test(test_store_middle_tagged, a, test_result_middle[t]); | |
336 run_test(test_store_high_double, a, test_result_high_double[t]); | |
337 run_test(test_store_high_tagged, a, test_result_high_double[t]); | |
338 | |
339 // Test the correct behavior of the |length| property (which is read-only). | |
340 if (t != 0) { | |
341 assertEquals(kElementCount, a.length); | |
342 a.length = 2; | |
343 assertEquals(kElementCount, a.length); | |
344 assertTrue(delete a.length); | |
345 | |
346 // Make sure bounds checks are handled correctly for external arrays. | |
347 run_bounds_test(a); | |
348 run_bounds_test(a); | |
349 run_bounds_test(a); | |
350 %OptimizeFunctionOnNextCall(run_bounds_test); | |
351 run_bounds_test(a); | |
352 %DeoptimizeFunction(run_bounds_test); | |
353 %ClearFunctionTypeFeedback(run_bounds_test); | |
354 } | |
355 | |
356 function array_load_set_smi_check(a) { | |
357 return a[0] = a[0] = 1; | |
358 } | |
359 | |
360 array_load_set_smi_check(a); | |
361 array_load_set_smi_check(0); | |
362 | |
363 function array_load_set_smi_check2(a) { | |
364 return a[0] = a[0] = 1; | |
365 } | |
366 | |
367 array_load_set_smi_check2(a); | |
368 %OptimizeFunctionOnNextCall(array_load_set_smi_check2); | |
369 array_load_set_smi_check2(a); | |
370 array_load_set_smi_check2(0); | |
371 %DeoptimizeFunction(array_load_set_smi_check2); | |
372 %ClearFunctionTypeFeedback(array_load_set_smi_check2); | |
373 } | |
374 | |
375 // Check handling of undefined in 32- and 64-bit external float arrays. | |
376 | |
377 function store_float32_undefined(ext_array) { | |
378 ext_array[0] = undefined; | |
379 } | |
380 | |
381 var float32_array = new Float32Array(1); | |
382 // Make sure runtime does it right | |
383 store_float32_undefined(float32_array); | |
384 assertTrue(isNaN(float32_array[0])); | |
385 // Make sure the ICs do it right | |
386 store_float32_undefined(float32_array); | |
387 assertTrue(isNaN(float32_array[0])); | |
388 // Make sure that Cranskshft does it right. | |
389 %OptimizeFunctionOnNextCall(store_float32_undefined); | |
390 store_float32_undefined(float32_array); | |
391 assertTrue(isNaN(float32_array[0])); | |
392 | |
393 function store_float64_undefined(ext_array) { | |
394 ext_array[0] = undefined; | |
395 } | |
396 | |
397 var float64_array = new Float64Array(1); | |
398 // Make sure runtime does it right | |
399 store_float64_undefined(float64_array); | |
400 assertTrue(isNaN(float64_array[0])); | |
401 // Make sure the ICs do it right | |
402 store_float64_undefined(float64_array); | |
403 assertTrue(isNaN(float64_array[0])); | |
404 // Make sure that Cranskshft does it right. | |
405 %OptimizeFunctionOnNextCall(store_float64_undefined); | |
406 store_float64_undefined(float64_array); | |
407 assertTrue(isNaN(float64_array[0])); | |
408 | |
409 | |
410 // Check handling of 0-sized buffers and arrays. | |
411 ab = new ArrayBuffer(0); | |
412 assertInstance(ab, ArrayBuffer); | |
413 assertEquals(0, ab.byteLength); | |
414 a = new Int8Array(ab); | |
415 assertInstance(a, Int8Array); | |
416 assertEquals(0, a.byteLength); | |
417 assertEquals(0, a.length); | |
418 a[0] = 1; | |
419 assertEquals(undefined, a[0]); | |
420 ab = new ArrayBuffer(16); | |
421 assertInstance(ab, ArrayBuffer); | |
422 a = new Float32Array(ab,4,0); | |
423 assertInstance(a, Float32Array); | |
424 assertEquals(0, a.byteLength); | |
425 assertEquals(0, a.length); | |
426 a[0] = 1; | |
427 assertEquals(undefined, a[0]); | |
428 a = new Uint16Array(0); | |
429 assertInstance(a, Uint16Array); | |
430 assertEquals(0, a.byteLength); | |
431 assertEquals(0, a.length); | |
432 a[0] = 1; | |
433 assertEquals(undefined, a[0]); | |
434 | |
435 | |
436 // Check construction from arrays. | |
437 a = new Uint32Array([]); | |
438 assertInstance(a, Uint32Array); | |
439 assertEquals(0, a.length); | |
440 assertEquals(0, a.byteLength); | |
441 assertEquals(0, a.buffer.byteLength); | |
442 assertEquals(4, a.BYTES_PER_ELEMENT); | |
443 assertInstance(a.buffer, ArrayBuffer); | |
444 a = new Uint16Array([1,2,3]); | |
445 assertInstance(a, Uint16Array); | |
446 assertEquals(3, a.length); | |
447 assertEquals(6, a.byteLength); | |
448 assertEquals(6, a.buffer.byteLength); | |
449 assertEquals(2, a.BYTES_PER_ELEMENT); | |
450 assertEquals(1, a[0]); | |
451 assertEquals(3, a[2]); | |
452 assertInstance(a.buffer, ArrayBuffer); | |
453 a = new Uint32Array(a); | |
454 assertInstance(a, Uint32Array); | |
455 assertEquals(3, a.length); | |
456 assertEquals(12, a.byteLength); | |
457 assertEquals(12, a.buffer.byteLength); | |
458 assertEquals(4, a.BYTES_PER_ELEMENT); | |
459 assertEquals(1, a[0]); | |
460 assertEquals(3, a[2]); | |
461 assertInstance(a.buffer, ArrayBuffer); | |
462 | |
463 // Check subarrays. | |
464 a = new Uint16Array([1,2,3,4,5,6]); | |
465 aa = a.subarray(3); | |
466 assertInstance(aa, Uint16Array); | |
467 assertEquals(3, aa.length); | |
468 assertEquals(6, aa.byteLength); | |
469 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
470 assertSame(a.buffer, aa.buffer); | |
471 aa = a.subarray(3,5); | |
472 assertInstance(aa, Uint16Array); | |
473 assertEquals(2, aa.length); | |
474 assertEquals(4, aa.byteLength); | |
475 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
476 assertSame(a.buffer, aa.buffer); | |
477 aa = a.subarray(4,8); | |
478 assertInstance(aa, Uint16Array); | |
479 assertEquals(2, aa.length); | |
480 assertEquals(4, aa.byteLength); | |
481 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
482 assertSame(a.buffer, aa.buffer); | |
483 aa = a.subarray(9); | |
484 assertInstance(aa, Uint16Array); | |
485 assertEquals(0, aa.length); | |
486 assertEquals(0, aa.byteLength); | |
487 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
488 assertSame(a.buffer, aa.buffer); | |
489 aa = a.subarray(-4); | |
490 assertInstance(aa, Uint16Array); | |
491 assertEquals(4, aa.length); | |
492 assertEquals(8, aa.byteLength); | |
493 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
494 assertSame(a.buffer, aa.buffer); | |
495 aa = a.subarray(-3,-1); | |
496 assertInstance(aa, Uint16Array); | |
497 assertEquals(2, aa.length); | |
498 assertEquals(4, aa.byteLength); | |
499 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
500 assertSame(a.buffer, aa.buffer); | |
501 aa = a.subarray(3,2); | |
502 assertInstance(aa, Uint16Array); | |
503 assertEquals(0, aa.length); | |
504 assertEquals(0, aa.byteLength); | |
505 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
506 assertSame(a.buffer, aa.buffer); | |
507 aa = a.subarray(-3,-4); | |
508 assertInstance(aa, Uint16Array); | |
509 assertEquals(0, aa.length); | |
510 assertEquals(0, aa.byteLength); | |
511 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
512 assertSame(a.buffer, aa.buffer); | |
513 aa = a.subarray(0,-8); | |
514 assertInstance(aa, Uint16Array); | |
515 assertEquals(0, aa.length); | |
516 assertEquals(0, aa.byteLength); | |
517 assertEquals(2, aa.BYTES_PER_ELEMENT); | |
518 assertSame(a.buffer, aa.buffer); | |
519 | |
520 assertThrows(function(){ a.subarray.call({}, 0) }); | |
521 assertThrows(function(){ a.subarray.call([], 0) }); | |
522 | |
523 // Try to call constructors directly as functions, and through .call | |
524 // and .apply. Should fail. | |
525 | |
526 assertThrows(function() { ArrayBuffer(100); }, TypeError); | |
527 assertThrows(function() { Int8Array(b, 5, 77); }, TypeError); | |
528 assertThrows(function() { ArrayBuffer.call(null, 10); }, TypeError); | |
529 assertThrows(function() { Uint16Array.call(null, b, 2, 4); }, TypeError); | |
530 assertThrows(function() { ArrayBuffer.apply(null, [1000]); }, TypeError); | |
531 assertThrows(function() { Float32Array.apply(null, [b, 128, 1]); }, TypeError); | |
532 | |
533 // Test array.set in different combinations. | |
534 | |
535 function assertArrayPrefix(expected, array) { | |
536 for (var i = 0; i < expected.length; ++i) { | |
537 assertEquals(expected[i], array[i]); | |
538 } | |
539 } | |
540 | |
541 var a11 = new Int16Array([1, 2, 3, 4, 0, -1]) | |
542 var a12 = new Uint16Array(15) | |
543 a12.set(a11, 3) | |
544 assertArrayPrefix([0, 0, 0, 1, 2, 3, 4, 0, 0xffff, 0, 0], a12) | |
545 assertThrows(function(){ a11.set(a12) }) | |
546 | |
547 var a21 = [1, undefined, 10, NaN, 0, -1, {valueOf: function() {return 3}}] | |
548 var a22 = new Int32Array(12) | |
549 a22.set(a21, 2) | |
550 assertArrayPrefix([0, 0, 1, 0, 10, 0, 0, -1, 3, 0], a22) | |
551 | |
552 var a31 = new Float32Array([2, 4, 6, 8, 11, NaN, 1/0, -3]) | |
553 var a32 = a31.subarray(2, 6) | |
554 a31.set(a32, 4) | |
555 assertArrayPrefix([2, 4, 6, 8, 6, 8, 11, NaN], a31) | |
556 assertArrayPrefix([6, 8, 6, 8], a32) | |
557 | |
558 var a4 = new Uint8ClampedArray([3,2,5,6]) | |
559 a4.set(a4) | |
560 assertArrayPrefix([3, 2, 5, 6], a4) | |
561 | |
562 // Cases with overlapping backing store but different element sizes. | |
563 var b = new ArrayBuffer(4) | |
564 var a5 = new Int16Array(b) | |
565 var a50 = new Int8Array(b) | |
566 var a51 = new Int8Array(b, 0, 2) | |
567 var a52 = new Int8Array(b, 1, 2) | |
568 var a53 = new Int8Array(b, 2, 2) | |
569 | |
570 a5.set([0x5050, 0x0a0a]) | |
571 assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50) | |
572 assertArrayPrefix([0x50, 0x50], a51) | |
573 assertArrayPrefix([0x50, 0x0a], a52) | |
574 assertArrayPrefix([0x0a, 0x0a], a53) | |
575 | |
576 a50.set([0x50, 0x50, 0x0a, 0x0a]) | |
577 a51.set(a5) | |
578 assertArrayPrefix([0x50, 0x0a, 0x0a, 0x0a], a50) | |
579 | |
580 a50.set([0x50, 0x50, 0x0a, 0x0a]) | |
581 a52.set(a5) | |
582 assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50) | |
583 | |
584 a50.set([0x50, 0x50, 0x0a, 0x0a]) | |
585 a53.set(a5) | |
586 assertArrayPrefix([0x50, 0x50, 0x50, 0x0a], a50) | |
587 | |
588 a50.set([0x50, 0x51, 0x0a, 0x0b]) | |
589 a5.set(a51) | |
590 assertArrayPrefix([0x0050, 0x0051], a5) | |
591 | |
592 a50.set([0x50, 0x51, 0x0a, 0x0b]) | |
593 a5.set(a52) | |
594 assertArrayPrefix([0x0051, 0x000a], a5) | |
595 | |
596 a50.set([0x50, 0x51, 0x0a, 0x0b]) | |
597 a5.set(a53) | |
598 assertArrayPrefix([0x000a, 0x000b], a5) | |
599 | |
600 // Mixed types of same size. | |
601 var a61 = new Float32Array([1.2, 12.3]) | |
602 var a62 = new Int32Array(2) | |
603 a62.set(a61) | |
604 assertArrayPrefix([1, 12], a62) | |
605 a61.set(a62) | |
606 assertArrayPrefix([1, 12], a61) | |
607 | |
608 // Invalid source | |
609 assertThrows(function() { a.set(0); }, TypeError); | |
610 assertArrayPrefix([1,2,3,4,5,6], a); | |
611 a.set({}); // does not throw | |
612 assertArrayPrefix([1,2,3,4,5,6], a); | |
613 | |
614 | |
615 // Test arraybuffer.slice | |
616 | |
617 var a0 = new Int8Array([1, 2, 3, 4, 5, 6]) | |
618 var b0 = a0.buffer | |
619 | |
620 var b1 = b0.slice(0) | |
621 assertEquals(b0.byteLength, b1.byteLength) | |
622 assertArrayPrefix([1, 2, 3, 4, 5, 6], new Int8Array(b1)) | |
623 | |
624 var b2 = b0.slice(3) | |
625 assertEquals(b0.byteLength - 3, b2.byteLength) | |
626 assertArrayPrefix([4, 5, 6], new Int8Array(b2)) | |
627 | |
628 var b3 = b0.slice(2, 4) | |
629 assertEquals(2, b3.byteLength) | |
630 assertArrayPrefix([3, 4], new Int8Array(b3)) | |
631 | |
632 function goo(a, i) { | |
633 return a[i]; | |
634 } | |
635 | |
636 function boo(a, i, v) { | |
637 return a[i] = v; | |
638 } | |
639 | |
640 function do_tagged_index_external_array_test(constructor) { | |
641 var t_array = new constructor([1, 2, 3, 4, 5, 6]); | |
642 assertEquals(1, goo(t_array, 0)); | |
643 assertEquals(1, goo(t_array, 0)); | |
644 boo(t_array, 0, 13); | |
645 assertEquals(13, goo(t_array, 0)); | |
646 %OptimizeFunctionOnNextCall(goo); | |
647 %OptimizeFunctionOnNextCall(boo); | |
648 boo(t_array, 0, 15); | |
649 assertEquals(15, goo(t_array, 0)); | |
650 %ClearFunctionTypeFeedback(goo); | |
651 %ClearFunctionTypeFeedback(boo); | |
652 } | |
653 | |
654 do_tagged_index_external_array_test(Int8Array); | |
655 do_tagged_index_external_array_test(Uint8Array); | |
656 do_tagged_index_external_array_test(Int16Array); | |
657 do_tagged_index_external_array_test(Uint16Array); | |
658 do_tagged_index_external_array_test(Int32Array); | |
659 do_tagged_index_external_array_test(Uint32Array); | |
660 do_tagged_index_external_array_test(Float32Array); | |
661 do_tagged_index_external_array_test(Float64Array); | |
662 | |
663 var built_in_array = new Array(1, 2, 3, 4, 5, 6); | |
664 assertEquals(1, goo(built_in_array, 0)); | |
665 assertEquals(1, goo(built_in_array, 0)); | |
666 %OptimizeFunctionOnNextCall(goo); | |
667 %OptimizeFunctionOnNextCall(boo); | |
668 boo(built_in_array, 0, 11); | |
669 assertEquals(11, goo(built_in_array, 0)); | |
670 %ClearFunctionTypeFeedback(goo); | |
671 %ClearFunctionTypeFeedback(boo); | |
672 | |
673 built_in_array = new Array(1.5, 2, 3, 4, 5, 6); | |
674 assertEquals(1.5, goo(built_in_array, 0)); | |
675 assertEquals(1.5, goo(built_in_array, 0)); | |
676 %OptimizeFunctionOnNextCall(goo); | |
677 %OptimizeFunctionOnNextCall(boo); | |
678 boo(built_in_array, 0, 2.5); | |
679 assertEquals(2.5, goo(built_in_array, 0)); | |
680 %ClearFunctionTypeFeedback(goo); | |
681 %ClearFunctionTypeFeedback(boo); | |
682 | |
683 // Check all int range edge cases | |
684 function checkRange() { | |
685 var e32 = Math.pow(2,32); var e31 = Math.pow(2,31); | |
686 var e16 = Math.pow(2,16); var e15 = Math.pow(2,15); | |
687 var e8 = Math.pow(2,8); var e7 = Math.pow(2,7); | |
688 var a7 = new Uint32Array(2); var a71 = new Int32Array(2); | |
689 var a72 = new Uint16Array(2); var a73 = new Int16Array(2); | |
690 var a74 = new Uint8Array(2); var a75 = new Int8Array(2); | |
691 for (i = 1; i <= Math.pow(2,33); i *= 2) { | |
692 var j = i-1; | |
693 a7[0] = i; a71[0] = i; a72[0] = i; a73[0] = i; a74[0] = i; a75[0] = i; | |
694 a7[1] = j; a71[1] = j; a72[1] = j; a73[1] = j; a74[1] = j; a75[1] = j; | |
695 | |
696 if (i < e32) { assertEquals(a7[0], i); } else { assertEquals(a7[0], 0); } | |
697 if (j < e32) { assertEquals(a7[1], j); } else { assertEquals(a7[1],e32-1); } | |
698 if (i < e31) { assertEquals(a71[0], i); } else { | |
699 assertEquals(a71[0], (i < e32) ? -e31 : 0 ); } | |
700 if (j < e31) { assertEquals(a71[1], j); } else { assertEquals(a71[1], -1); } | |
701 | |
702 if (i < e16) { assertEquals(a72[0], i); } else { assertEquals(a72[0], 0); } | |
703 if (j < e16) { assertEquals(a72[1], j); } else { assertEquals(a72[1], e16-1)
; } | |
704 if (i < e15) { assertEquals(a73[0], i); } else { | |
705 assertEquals(a73[0], (i < e16) ? -e15 : 0 ); } | |
706 if (j < e15) { assertEquals(a73[1], j); } else { assertEquals(a73[1], -1); } | |
707 | |
708 if (i < e8) { assertEquals(a74[0], i); } else { assertEquals(a74[0], 0); } | |
709 if (j < e8) { assertEquals(a74[1], j); } else { assertEquals(a74[1], e8-1);
} | |
710 if (i < e7) { assertEquals(a75[0], i); } else { | |
711 assertEquals(a75[0], (i < e8) ? -e7 : 0); } | |
712 if (j < e7) { assertEquals(a75[1], j); } else { assertEquals(a75[1], -1); } | |
713 } | |
714 } | |
715 checkRange(); | |
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