Line data Source code
1 : // Copyright 2011 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 : #include <stdlib.h>
29 :
30 : #include "src/base/platform/platform.h"
31 : #include "src/conversions.h"
32 : #include "src/factory-inl.h"
33 : #include "src/isolate.h"
34 : #include "src/objects.h"
35 : #include "src/unicode-cache.h"
36 : #include "src/v8.h"
37 : #include "test/cctest/cctest.h"
38 :
39 : namespace v8 {
40 : namespace internal {
41 :
42 23724 : TEST(Hex) {
43 6 : UnicodeCache uc;
44 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0x0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
45 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0X0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
46 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0x1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
47 6 : CHECK_EQ(16.0, StringToDouble(&uc, "0x10", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
48 6 : CHECK_EQ(255.0, StringToDouble(&uc, "0xff",
49 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
50 6 : CHECK_EQ(175.0, StringToDouble(&uc, "0xAF",
51 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
52 :
53 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0x0", ALLOW_HEX));
54 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0X0", ALLOW_HEX));
55 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0x1", ALLOW_HEX));
56 6 : CHECK_EQ(16.0, StringToDouble(&uc, "0x10", ALLOW_HEX));
57 6 : CHECK_EQ(255.0, StringToDouble(&uc, "0xff", ALLOW_HEX));
58 6 : CHECK_EQ(175.0, StringToDouble(&uc, "0xAF", ALLOW_HEX));
59 6 : }
60 :
61 :
62 23724 : TEST(Octal) {
63 6 : UnicodeCache uc;
64 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0o0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
65 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0O0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
66 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0o1", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
67 6 : CHECK_EQ(7.0, StringToDouble(&uc, "0o7", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
68 6 : CHECK_EQ(8.0, StringToDouble(&uc, "0o10",
69 : ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
70 6 : CHECK_EQ(63.0, StringToDouble(&uc, "0o77",
71 : ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
72 :
73 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0o0", ALLOW_OCTAL));
74 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0O0", ALLOW_OCTAL));
75 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0o1", ALLOW_OCTAL));
76 6 : CHECK_EQ(7.0, StringToDouble(&uc, "0o7", ALLOW_OCTAL));
77 6 : CHECK_EQ(8.0, StringToDouble(&uc, "0o10", ALLOW_OCTAL));
78 6 : CHECK_EQ(63.0, StringToDouble(&uc, "0o77", ALLOW_OCTAL));
79 6 : }
80 :
81 :
82 23724 : TEST(ImplicitOctal) {
83 6 : UnicodeCache uc;
84 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
85 6 : CHECK_EQ(0.0, StringToDouble(&uc, "00", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
86 6 : CHECK_EQ(1.0, StringToDouble(&uc, "01", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
87 6 : CHECK_EQ(7.0, StringToDouble(&uc, "07", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
88 6 : CHECK_EQ(8.0, StringToDouble(&uc, "010", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
89 6 : CHECK_EQ(63.0, StringToDouble(&uc, "077", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
90 :
91 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0", ALLOW_HEX));
92 6 : CHECK_EQ(0.0, StringToDouble(&uc, "00", ALLOW_HEX));
93 6 : CHECK_EQ(1.0, StringToDouble(&uc, "01", ALLOW_HEX));
94 6 : CHECK_EQ(7.0, StringToDouble(&uc, "07", ALLOW_HEX));
95 6 : CHECK_EQ(10.0, StringToDouble(&uc, "010", ALLOW_HEX));
96 6 : CHECK_EQ(77.0, StringToDouble(&uc, "077", ALLOW_HEX));
97 :
98 : const double x = 010000000000; // Power of 2, no rounding errors.
99 6 : CHECK_EQ(x * x * x * x * x, StringToDouble(&uc, "01" "0000000000" "0000000000"
100 : "0000000000" "0000000000" "0000000000", ALLOW_IMPLICIT_OCTAL));
101 6 : }
102 :
103 :
104 23724 : TEST(Binary) {
105 6 : UnicodeCache uc;
106 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0b0",
107 : ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
108 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0B0",
109 : ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
110 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0b1",
111 : ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
112 6 : CHECK_EQ(2.0, StringToDouble(&uc, "0b10",
113 : ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
114 6 : CHECK_EQ(3.0, StringToDouble(&uc, "0b11",
115 : ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
116 :
117 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0b0", ALLOW_BINARY));
118 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0B0", ALLOW_BINARY));
119 6 : CHECK_EQ(1.0, StringToDouble(&uc, "0b1", ALLOW_BINARY));
120 6 : CHECK_EQ(2.0, StringToDouble(&uc, "0b10", ALLOW_BINARY));
121 6 : CHECK_EQ(3.0, StringToDouble(&uc, "0b11", ALLOW_BINARY));
122 6 : }
123 :
124 :
125 23724 : TEST(MalformedOctal) {
126 6 : UnicodeCache uc;
127 6 : CHECK_EQ(8.0, StringToDouble(&uc, "08", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
128 6 : CHECK_EQ(81.0, StringToDouble(&uc, "081", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
129 6 : CHECK_EQ(78.0, StringToDouble(&uc, "078", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
130 :
131 6 : CHECK(std::isnan(StringToDouble(&uc, "07.7",
132 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
133 6 : CHECK(std::isnan(StringToDouble(&uc, "07.8",
134 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
135 6 : CHECK(std::isnan(StringToDouble(&uc, "07e8",
136 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
137 6 : CHECK(std::isnan(StringToDouble(&uc, "07e7",
138 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
139 :
140 6 : CHECK_EQ(8.7, StringToDouble(&uc, "08.7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
141 6 : CHECK_EQ(8e7, StringToDouble(&uc, "08e7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
142 :
143 6 : CHECK_EQ(0.001, StringToDouble(&uc, "0.001",
144 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
145 6 : CHECK_EQ(0.713, StringToDouble(&uc, "0.713",
146 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
147 :
148 6 : CHECK_EQ(8.0, StringToDouble(&uc, "08", ALLOW_HEX));
149 6 : CHECK_EQ(81.0, StringToDouble(&uc, "081", ALLOW_HEX));
150 6 : CHECK_EQ(78.0, StringToDouble(&uc, "078", ALLOW_HEX));
151 :
152 6 : CHECK_EQ(7.7, StringToDouble(&uc, "07.7", ALLOW_HEX));
153 6 : CHECK_EQ(7.8, StringToDouble(&uc, "07.8", ALLOW_HEX));
154 6 : CHECK_EQ(7e8, StringToDouble(&uc, "07e8", ALLOW_HEX));
155 6 : CHECK_EQ(7e7, StringToDouble(&uc, "07e7", ALLOW_HEX));
156 :
157 6 : CHECK_EQ(8.7, StringToDouble(&uc, "08.7", ALLOW_HEX));
158 6 : CHECK_EQ(8e7, StringToDouble(&uc, "08e7", ALLOW_HEX));
159 :
160 6 : CHECK_EQ(0.001, StringToDouble(&uc, "0.001", ALLOW_HEX));
161 6 : CHECK_EQ(0.713, StringToDouble(&uc, "0.713", ALLOW_HEX));
162 6 : }
163 :
164 :
165 23724 : TEST(TrailingJunk) {
166 6 : UnicodeCache uc;
167 6 : CHECK_EQ(8.0, StringToDouble(&uc, "8q", ALLOW_TRAILING_JUNK));
168 6 : CHECK_EQ(63.0, StringToDouble(&uc, "077qqq",
169 : ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
170 6 : CHECK_EQ(10.0, StringToDouble(&uc, "10e",
171 : ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
172 6 : CHECK_EQ(10.0, StringToDouble(&uc, "10e-",
173 : ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
174 6 : }
175 :
176 :
177 23724 : TEST(NonStrDecimalLiteral) {
178 6 : UnicodeCache uc;
179 6 : CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS,
180 : std::numeric_limits<double>::quiet_NaN())));
181 6 : CHECK(std::isnan(StringToDouble(&uc, "", NO_FLAGS,
182 : std::numeric_limits<double>::quiet_NaN())));
183 6 : CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS,
184 : std::numeric_limits<double>::quiet_NaN())));
185 6 : CHECK_EQ(0.0, StringToDouble(&uc, "", NO_FLAGS));
186 6 : CHECK_EQ(0.0, StringToDouble(&uc, " ", NO_FLAGS));
187 6 : }
188 :
189 :
190 23724 : TEST(IntegerStrLiteral) {
191 6 : UnicodeCache uc;
192 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0.0", NO_FLAGS));
193 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0", NO_FLAGS));
194 6 : CHECK_EQ(0.0, StringToDouble(&uc, "00", NO_FLAGS));
195 6 : CHECK_EQ(0.0, StringToDouble(&uc, "000", NO_FLAGS));
196 6 : CHECK_EQ(1.0, StringToDouble(&uc, "1", NO_FLAGS));
197 6 : CHECK_EQ(-1.0, StringToDouble(&uc, "-1", NO_FLAGS));
198 6 : CHECK_EQ(-1.0, StringToDouble(&uc, " -1 ", NO_FLAGS));
199 6 : CHECK_EQ(1.0, StringToDouble(&uc, " +1 ", NO_FLAGS));
200 6 : CHECK(std::isnan(StringToDouble(&uc, " - 1 ", NO_FLAGS)));
201 6 : CHECK(std::isnan(StringToDouble(&uc, " + 1 ", NO_FLAGS)));
202 :
203 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0e0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
204 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0e1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
205 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0e-1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
206 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0e-100000",
207 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
208 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0e+100000",
209 : ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
210 6 : CHECK_EQ(0.0, StringToDouble(&uc, "0.", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
211 6 : }
212 :
213 :
214 23724 : TEST(LongNumberStr) {
215 6 : UnicodeCache uc;
216 6 : CHECK_EQ(1e10, StringToDouble(&uc, "1" "0000000000", NO_FLAGS));
217 6 : CHECK_EQ(1e20, StringToDouble(&uc, "1" "0000000000" "0000000000", NO_FLAGS));
218 :
219 6 : CHECK_EQ(1e60, StringToDouble(&uc, "1" "0000000000" "0000000000" "0000000000"
220 : "0000000000" "0000000000" "0000000000", NO_FLAGS));
221 :
222 6 : CHECK_EQ(1e-2, StringToDouble(&uc, "." "0" "1", NO_FLAGS));
223 6 : CHECK_EQ(1e-11, StringToDouble(&uc, "." "0000000000" "1", NO_FLAGS));
224 6 : CHECK_EQ(1e-21, StringToDouble(&uc, "." "0000000000" "0000000000" "1",
225 : NO_FLAGS));
226 :
227 6 : CHECK_EQ(1e-61, StringToDouble(&uc, "." "0000000000" "0000000000" "0000000000"
228 : "0000000000" "0000000000" "0000000000" "1", NO_FLAGS));
229 :
230 :
231 : // x = 24414062505131248.0 and y = 24414062505131252.0 are representable in
232 : // double. Check chat z = (x + y) / 2 is rounded to x...
233 6 : CHECK_EQ(24414062505131248.0,
234 : StringToDouble(&uc, "24414062505131250.0", NO_FLAGS));
235 :
236 : // ... and z = (x + y) / 2 + delta is rounded to y.
237 6 : CHECK_EQ(24414062505131252.0,
238 : StringToDouble(&uc, "24414062505131250.000000001", NO_FLAGS));
239 6 : }
240 :
241 :
242 23724 : TEST(MaximumSignificantDigits) {
243 6 : UnicodeCache uc;
244 : char num[] =
245 : "4.4501477170144020250819966727949918635852426585926051135169509"
246 : "122872622312493126406953054127118942431783801370080830523154578"
247 : "251545303238277269592368457430440993619708911874715081505094180"
248 : "604803751173783204118519353387964161152051487413083163272520124"
249 : "606023105869053620631175265621765214646643181420505164043632222"
250 : "668006474326056011713528291579642227455489682133472873831754840"
251 : "341397809846934151055619529382191981473003234105366170879223151"
252 : "087335413188049110555339027884856781219017754500629806224571029"
253 : "581637117459456877330110324211689177656713705497387108207822477"
254 : "584250967061891687062782163335299376138075114200886249979505279"
255 : "101870966346394401564490729731565935244123171539810221213221201"
256 : "847003580761626016356864581135848683152156368691976240370422601"
257 6 : "6998291015625000000000000000000000000000000000e-308";
258 :
259 6 : CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(&uc, num, NO_FLAGS));
260 :
261 : // Changes the result of strtod (at least in glibc implementation).
262 6 : num[sizeof(num) - 8] = '1';
263 :
264 6 : CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(&uc, num, NO_FLAGS));
265 6 : }
266 :
267 :
268 23724 : TEST(MinimumExponent) {
269 6 : UnicodeCache uc;
270 : // Same test but with different point-position.
271 : char num[] =
272 : "445014771701440202508199667279499186358524265859260511351695091"
273 : "228726223124931264069530541271189424317838013700808305231545782"
274 : "515453032382772695923684574304409936197089118747150815050941806"
275 : "048037511737832041185193533879641611520514874130831632725201246"
276 : "060231058690536206311752656217652146466431814205051640436322226"
277 : "680064743260560117135282915796422274554896821334728738317548403"
278 : "413978098469341510556195293821919814730032341053661708792231510"
279 : "873354131880491105553390278848567812190177545006298062245710295"
280 : "816371174594568773301103242116891776567137054973871082078224775"
281 : "842509670618916870627821633352993761380751142008862499795052791"
282 : "018709663463944015644907297315659352441231715398102212132212018"
283 : "470035807616260163568645811358486831521563686919762403704226016"
284 6 : "998291015625000000000000000000000000000000000e-1108";
285 :
286 6 : CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(&uc, num, NO_FLAGS));
287 :
288 : // Changes the result of strtod (at least in glibc implementation).
289 6 : num[sizeof(num) - 8] = '1';
290 :
291 6 : CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(&uc, num, NO_FLAGS));
292 6 : }
293 :
294 :
295 23724 : TEST(MaximumExponent) {
296 6 : UnicodeCache uc;
297 6 : char num[] = "0.16e309";
298 :
299 6 : CHECK_EQ(1.59999999999999997765e+308, StringToDouble(&uc, num, NO_FLAGS));
300 6 : }
301 :
302 :
303 23724 : TEST(ExponentNumberStr) {
304 6 : UnicodeCache uc;
305 6 : CHECK_EQ(1e1, StringToDouble(&uc, "1e1", NO_FLAGS));
306 6 : CHECK_EQ(1e1, StringToDouble(&uc, "1e+1", NO_FLAGS));
307 6 : CHECK_EQ(1e-1, StringToDouble(&uc, "1e-1", NO_FLAGS));
308 6 : CHECK_EQ(1e100, StringToDouble(&uc, "1e+100", NO_FLAGS));
309 6 : CHECK_EQ(1e-100, StringToDouble(&uc, "1e-100", NO_FLAGS));
310 6 : CHECK_EQ(1e-106, StringToDouble(&uc, ".000001e-100", NO_FLAGS));
311 6 : }
312 :
313 :
314 : class OneBit1: public BitField<uint32_t, 0, 1> {};
315 : class OneBit2: public BitField<uint32_t, 7, 1> {};
316 : class EightBit1: public BitField<uint32_t, 0, 8> {};
317 : class EightBit2: public BitField<uint32_t, 13, 8> {};
318 :
319 23724 : TEST(BitField) {
320 : uint32_t x;
321 :
322 : // One bit bit field can hold values 0 and 1.
323 : CHECK(!OneBit1::is_valid(static_cast<uint32_t>(-1)));
324 : CHECK(!OneBit2::is_valid(static_cast<uint32_t>(-1)));
325 18 : for (unsigned i = 0; i < 2; i++) {
326 12 : CHECK(OneBit1::is_valid(i));
327 : x = OneBit1::encode(i);
328 12 : CHECK_EQ(i, OneBit1::decode(x));
329 :
330 12 : CHECK(OneBit2::is_valid(i));
331 : x = OneBit2::encode(i);
332 12 : CHECK_EQ(i, OneBit2::decode(x));
333 : }
334 : CHECK(!OneBit1::is_valid(2));
335 : CHECK(!OneBit2::is_valid(2));
336 :
337 : // Eight bit bit field can hold values from 0 tp 255.
338 : CHECK(!EightBit1::is_valid(static_cast<uint32_t>(-1)));
339 : CHECK(!EightBit2::is_valid(static_cast<uint32_t>(-1)));
340 1536 : for (unsigned i = 0; i < 256; i++) {
341 1536 : CHECK(EightBit1::is_valid(i));
342 : x = EightBit1::encode(i);
343 1536 : CHECK_EQ(i, EightBit1::decode(x));
344 1536 : CHECK(EightBit2::is_valid(i));
345 : x = EightBit2::encode(i);
346 1536 : CHECK_EQ(i, EightBit2::decode(x));
347 : }
348 : CHECK(!EightBit1::is_valid(256));
349 : CHECK(!EightBit2::is_valid(256));
350 6 : }
351 :
352 :
353 : class UpperBits: public BitField64<int, 61, 3> {};
354 : class MiddleBits: public BitField64<int, 31, 2> {};
355 :
356 23724 : TEST(BitField64) {
357 : uint64_t x;
358 :
359 : // Test most significant bits.
360 : x = V8_2PART_UINT64_C(0xE0000000, 00000000);
361 : CHECK(x == UpperBits::encode(7));
362 : CHECK_EQ(7, UpperBits::decode(x));
363 :
364 : // Test the 32/64-bit boundary bits.
365 : x = V8_2PART_UINT64_C(0x00000001, 80000000);
366 : CHECK(x == MiddleBits::encode(3));
367 : CHECK_EQ(3, MiddleBits::decode(x));
368 6 : }
369 :
370 :
371 186 : static void CheckNonArrayIndex(bool expected, const char* chars) {
372 186 : auto isolate = CcTest::i_isolate();
373 186 : auto string = isolate->factory()->NewStringFromAsciiChecked(chars);
374 186 : CHECK_EQ(expected, IsSpecialIndex(isolate->unicode_cache(), *string));
375 186 : }
376 :
377 :
378 23724 : TEST(SpecialIndexParsing) {
379 : auto isolate = CcTest::i_isolate();
380 : HandleScope scope(isolate);
381 6 : CheckNonArrayIndex(false, "");
382 6 : CheckNonArrayIndex(false, "-");
383 6 : CheckNonArrayIndex(true, "0");
384 6 : CheckNonArrayIndex(true, "-0");
385 6 : CheckNonArrayIndex(false, "01");
386 6 : CheckNonArrayIndex(false, "-01");
387 6 : CheckNonArrayIndex(true, "0.5");
388 6 : CheckNonArrayIndex(true, "-0.5");
389 6 : CheckNonArrayIndex(true, "1");
390 6 : CheckNonArrayIndex(true, "-1");
391 6 : CheckNonArrayIndex(true, "10");
392 6 : CheckNonArrayIndex(true, "-10");
393 6 : CheckNonArrayIndex(true, "NaN");
394 6 : CheckNonArrayIndex(true, "Infinity");
395 6 : CheckNonArrayIndex(true, "-Infinity");
396 6 : CheckNonArrayIndex(true, "4294967295");
397 6 : CheckNonArrayIndex(true, "429496.7295");
398 6 : CheckNonArrayIndex(true, "1.3333333333333333");
399 6 : CheckNonArrayIndex(false, "1.3333333333333339");
400 6 : CheckNonArrayIndex(true, "1.333333333333331e+222");
401 6 : CheckNonArrayIndex(true, "-1.3333333333333211e+222");
402 6 : CheckNonArrayIndex(false, "-1.3333333333333311e+222");
403 6 : CheckNonArrayIndex(true, "429496.7295");
404 6 : CheckNonArrayIndex(false, "43s3");
405 6 : CheckNonArrayIndex(true, "4294967296");
406 6 : CheckNonArrayIndex(true, "-4294967296");
407 6 : CheckNonArrayIndex(true, "999999999999999");
408 6 : CheckNonArrayIndex(false, "9999999999999999");
409 6 : CheckNonArrayIndex(true, "-999999999999999");
410 6 : CheckNonArrayIndex(false, "-9999999999999999");
411 6 : CheckNonArrayIndex(false, "42949672964294967296429496729694966");
412 6 : }
413 :
414 23724 : TEST(NoHandlesForTryNumberToSize) {
415 : i::Isolate* isolate = CcTest::i_isolate();
416 : size_t result = 0;
417 : {
418 : SealHandleScope no_handles(isolate);
419 : Smi* smi = Smi::FromInt(1);
420 : CHECK(TryNumberToSize(smi, &result));
421 : CHECK_EQ(result, 1u);
422 : }
423 : result = 0;
424 : {
425 : HandleScope scope(isolate);
426 : Handle<HeapNumber> heap_number1 = isolate->factory()->NewHeapNumber(2.0);
427 : {
428 : SealHandleScope no_handles(isolate);
429 6 : CHECK(TryNumberToSize(*heap_number1, &result));
430 6 : CHECK_EQ(result, 2u);
431 : }
432 : Handle<HeapNumber> heap_number2 = isolate->factory()->NewHeapNumber(
433 : static_cast<double>(std::numeric_limits<size_t>::max()) + 10000.0);
434 : {
435 : SealHandleScope no_handles(isolate);
436 6 : CHECK(!TryNumberToSize(*heap_number2, &result));
437 : }
438 : }
439 6 : }
440 :
441 23724 : TEST(TryNumberToSizeWithMaxSizePlusOne) {
442 : i::Isolate* isolate = CcTest::i_isolate();
443 : {
444 : HandleScope scope(isolate);
445 : // 1 << 64, larger than the limit of size_t.
446 : double value = 18446744073709551616.0;
447 : size_t result = 0;
448 : Handle<HeapNumber> heap_number = isolate->factory()->NewHeapNumber(value);
449 6 : CHECK(!TryNumberToSize(*heap_number, &result));
450 : }
451 6 : }
452 :
453 23724 : TEST(PositiveNumberToUint32) {
454 : i::Isolate* isolate = CcTest::i_isolate();
455 : i::Factory* factory = isolate->factory();
456 : uint32_t max = std::numeric_limits<uint32_t>::max();
457 : HandleScope scope(isolate);
458 : // Test Smi conversions.
459 : Handle<Object> number = handle(Smi::FromInt(0), isolate);
460 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
461 : number = handle(Smi::FromInt(-1), isolate);
462 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
463 : number = handle(Smi::FromInt(-1), isolate);
464 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
465 : number = handle(Smi::FromInt(Smi::kMinValue), isolate);
466 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
467 : number = handle(Smi::FromInt(Smi::kMaxValue), isolate);
468 6 : CHECK_EQ(PositiveNumberToUint32(*number),
469 : static_cast<uint32_t>(Smi::kMaxValue));
470 : // Test Double conversions.
471 : number = factory->NewHeapNumber(0.0);
472 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
473 : number = factory->NewHeapNumber(0.999);
474 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
475 : number = factory->NewHeapNumber(1.999);
476 6 : CHECK_EQ(PositiveNumberToUint32(*number), 1u);
477 : number = factory->NewHeapNumber(-12.0);
478 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
479 : number = factory->NewHeapNumber(12000.0);
480 6 : CHECK_EQ(PositiveNumberToUint32(*number), 12000u);
481 : number = factory->NewHeapNumber(static_cast<double>(Smi::kMaxValue) + 1);
482 6 : CHECK_EQ(PositiveNumberToUint32(*number),
483 : static_cast<uint32_t>(Smi::kMaxValue) + 1);
484 : number = factory->NewHeapNumber(max);
485 6 : CHECK_EQ(PositiveNumberToUint32(*number), max);
486 : number = factory->NewHeapNumber(static_cast<double>(max) * 1000);
487 6 : CHECK_EQ(PositiveNumberToUint32(*number), max);
488 : number = factory->NewHeapNumber(std::numeric_limits<double>::max());
489 6 : CHECK_EQ(PositiveNumberToUint32(*number), max);
490 : number = factory->NewHeapNumber(std::numeric_limits<double>::infinity());
491 6 : CHECK_EQ(PositiveNumberToUint32(*number), max);
492 : number =
493 : factory->NewHeapNumber(-1.0 * std::numeric_limits<double>::infinity());
494 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
495 : number = factory->NewHeapNumber(std::nan(""));
496 6 : CHECK_EQ(PositiveNumberToUint32(*number), 0u);
497 6 : }
498 :
499 : } // namespace internal
500 71154 : } // namespace v8
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