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
29 #include <stdlib.h>
30
31 #include "src/v8.h"
32
33 #include "src/ast.h"
34 #include "src/char-predicates-inl.h"
35 #include "src/jsregexp.h"
36 #include "src/parser.h"
37 #include "src/regexp-macro-assembler-irregexp.h"
38 #include "src/regexp-macro-assembler.h"
39 #include "src/string-stream.h"
40 #include "src/zone-inl.h"
41 #ifdef V8_INTERPRETED_REGEXP
42 #include "src/interpreter-irregexp.h"
43 #else // V8_INTERPRETED_REGEXP
44 #include "src/macro-assembler.h"
45 #include "src/code.h"
46 #if V8_TARGET_ARCH_ARM
47 #include "src/arm/assembler-arm.h"
48 #include "src/arm/macro-assembler-arm.h"
49 #include "src/arm/regexp-macro-assembler-arm.h"
50 #endif
51 #if V8_TARGET_ARCH_ARM64
52 #include "src/arm64/assembler-arm64.h"
53 #include "src/arm64/macro-assembler-arm64.h"
54 #include "src/arm64/regexp-macro-assembler-arm64.h"
55 #endif
56 #if V8_TARGET_ARCH_MIPS
57 #include "src/mips/assembler-mips.h"
58 #include "src/mips/macro-assembler-mips.h"
59 #include "src/mips/regexp-macro-assembler-mips.h"
60 #endif
61 #if V8_TARGET_ARCH_X64
62 #include "src/x64/assembler-x64.h"
63 #include "src/x64/macro-assembler-x64.h"
64 #include "src/x64/regexp-macro-assembler-x64.h"
65 #endif
66 #if V8_TARGET_ARCH_IA32
67 #include "src/ia32/assembler-ia32.h"
68 #include "src/ia32/macro-assembler-ia32.h"
69 #include "src/ia32/regexp-macro-assembler-ia32.h"
70 #endif
71 #if V8_TARGET_ARCH_X87
72 #include "src/x87/assembler-x87.h"
73 #include "src/x87/macro-assembler-x87.h"
74 #include "src/x87/regexp-macro-assembler-x87.h"
75 #endif
76 #endif // V8_INTERPRETED_REGEXP
77 #include "test/cctest/cctest.h"
78
79 using namespace v8::internal;
80
81
CheckParse(const char * input)82 static bool CheckParse(const char* input) {
83 V8::Initialize(NULL);
84 v8::HandleScope scope(CcTest::isolate());
85 Zone zone(CcTest::i_isolate());
86 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
87 RegExpCompileData result;
88 return v8::internal::RegExpParser::ParseRegExp(
89 &reader, false, &result, &zone);
90 }
91
92
Parse(const char * input)93 static SmartArrayPointer<const char> Parse(const char* input) {
94 V8::Initialize(NULL);
95 v8::HandleScope scope(CcTest::isolate());
96 Zone zone(CcTest::i_isolate());
97 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
98 RegExpCompileData result;
99 CHECK(v8::internal::RegExpParser::ParseRegExp(
100 &reader, false, &result, &zone));
101 CHECK(result.tree != NULL);
102 CHECK(result.error.is_null());
103 SmartArrayPointer<const char> output = result.tree->ToString(&zone);
104 return output;
105 }
106
107
CheckSimple(const char * input)108 static bool CheckSimple(const char* input) {
109 V8::Initialize(NULL);
110 v8::HandleScope scope(CcTest::isolate());
111 Zone zone(CcTest::i_isolate());
112 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
113 RegExpCompileData result;
114 CHECK(v8::internal::RegExpParser::ParseRegExp(
115 &reader, false, &result, &zone));
116 CHECK(result.tree != NULL);
117 CHECK(result.error.is_null());
118 return result.simple;
119 }
120
121 struct MinMaxPair {
122 int min_match;
123 int max_match;
124 };
125
126
CheckMinMaxMatch(const char * input)127 static MinMaxPair CheckMinMaxMatch(const char* input) {
128 V8::Initialize(NULL);
129 v8::HandleScope scope(CcTest::isolate());
130 Zone zone(CcTest::i_isolate());
131 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
132 RegExpCompileData result;
133 CHECK(v8::internal::RegExpParser::ParseRegExp(
134 &reader, false, &result, &zone));
135 CHECK(result.tree != NULL);
136 CHECK(result.error.is_null());
137 int min_match = result.tree->min_match();
138 int max_match = result.tree->max_match();
139 MinMaxPair pair = { min_match, max_match };
140 return pair;
141 }
142
143
144 #define CHECK_PARSE_ERROR(input) CHECK(!CheckParse(input))
145 #define CHECK_PARSE_EQ(input, expected) CHECK_EQ(expected, Parse(input).get())
146 #define CHECK_SIMPLE(input, simple) CHECK_EQ(simple, CheckSimple(input));
147 #define CHECK_MIN_MAX(input, min, max) \
148 { MinMaxPair min_max = CheckMinMaxMatch(input); \
149 CHECK_EQ(min, min_max.min_match); \
150 CHECK_EQ(max, min_max.max_match); \
151 }
152
TEST(Parser)153 TEST(Parser) {
154 V8::Initialize(NULL);
155
156 CHECK_PARSE_ERROR("?");
157
158 CHECK_PARSE_EQ("abc", "'abc'");
159 CHECK_PARSE_EQ("", "%");
160 CHECK_PARSE_EQ("abc|def", "(| 'abc' 'def')");
161 CHECK_PARSE_EQ("abc|def|ghi", "(| 'abc' 'def' 'ghi')");
162 CHECK_PARSE_EQ("^xxx$", "(: @^i 'xxx' @$i)");
163 CHECK_PARSE_EQ("ab\\b\\d\\bcd", "(: 'ab' @b [0-9] @b 'cd')");
164 CHECK_PARSE_EQ("\\w|\\d", "(| [0-9 A-Z _ a-z] [0-9])");
165 CHECK_PARSE_EQ("a*", "(# 0 - g 'a')");
166 CHECK_PARSE_EQ("a*?", "(# 0 - n 'a')");
167 CHECK_PARSE_EQ("abc+", "(: 'ab' (# 1 - g 'c'))");
168 CHECK_PARSE_EQ("abc+?", "(: 'ab' (# 1 - n 'c'))");
169 CHECK_PARSE_EQ("xyz?", "(: 'xy' (# 0 1 g 'z'))");
170 CHECK_PARSE_EQ("xyz??", "(: 'xy' (# 0 1 n 'z'))");
171 CHECK_PARSE_EQ("xyz{0,1}", "(: 'xy' (# 0 1 g 'z'))");
172 CHECK_PARSE_EQ("xyz{0,1}?", "(: 'xy' (# 0 1 n 'z'))");
173 CHECK_PARSE_EQ("xyz{93}", "(: 'xy' (# 93 93 g 'z'))");
174 CHECK_PARSE_EQ("xyz{93}?", "(: 'xy' (# 93 93 n 'z'))");
175 CHECK_PARSE_EQ("xyz{1,32}", "(: 'xy' (# 1 32 g 'z'))");
176 CHECK_PARSE_EQ("xyz{1,32}?", "(: 'xy' (# 1 32 n 'z'))");
177 CHECK_PARSE_EQ("xyz{1,}", "(: 'xy' (# 1 - g 'z'))");
178 CHECK_PARSE_EQ("xyz{1,}?", "(: 'xy' (# 1 - n 'z'))");
179 CHECK_PARSE_EQ("a\\fb\\nc\\rd\\te\\vf", "'a\\x0cb\\x0ac\\x0dd\\x09e\\x0bf'");
180 CHECK_PARSE_EQ("a\\nb\\bc", "(: 'a\\x0ab' @b 'c')");
181 CHECK_PARSE_EQ("(?:foo)", "'foo'");
182 CHECK_PARSE_EQ("(?: foo )", "' foo '");
183 CHECK_PARSE_EQ("(foo|bar|baz)", "(^ (| 'foo' 'bar' 'baz'))");
184 CHECK_PARSE_EQ("foo|(bar|baz)|quux", "(| 'foo' (^ (| 'bar' 'baz')) 'quux')");
185 CHECK_PARSE_EQ("foo(?=bar)baz", "(: 'foo' (-> + 'bar') 'baz')");
186 CHECK_PARSE_EQ("foo(?!bar)baz", "(: 'foo' (-> - 'bar') 'baz')");
187 CHECK_PARSE_EQ("()", "(^ %)");
188 CHECK_PARSE_EQ("(?=)", "(-> + %)");
189 CHECK_PARSE_EQ("[]", "^[\\x00-\\uffff]"); // Doesn't compile on windows
190 CHECK_PARSE_EQ("[^]", "[\\x00-\\uffff]"); // \uffff isn't in codepage 1252
191 CHECK_PARSE_EQ("[x]", "[x]");
192 CHECK_PARSE_EQ("[xyz]", "[x y z]");
193 CHECK_PARSE_EQ("[a-zA-Z0-9]", "[a-z A-Z 0-9]");
194 CHECK_PARSE_EQ("[-123]", "[- 1 2 3]");
195 CHECK_PARSE_EQ("[^123]", "^[1 2 3]");
196 CHECK_PARSE_EQ("]", "']'");
197 CHECK_PARSE_EQ("}", "'}'");
198 CHECK_PARSE_EQ("[a-b-c]", "[a-b - c]");
199 CHECK_PARSE_EQ("[\\d]", "[0-9]");
200 CHECK_PARSE_EQ("[x\\dz]", "[x 0-9 z]");
201 CHECK_PARSE_EQ("[\\d-z]", "[0-9 - z]");
202 CHECK_PARSE_EQ("[\\d-\\d]", "[0-9 - 0-9]");
203 CHECK_PARSE_EQ("[z-\\d]", "[z - 0-9]");
204 // Control character outside character class.
205 CHECK_PARSE_EQ("\\cj\\cJ\\ci\\cI\\ck\\cK",
206 "'\\x0a\\x0a\\x09\\x09\\x0b\\x0b'");
207 CHECK_PARSE_EQ("\\c!", "'\\c!'");
208 CHECK_PARSE_EQ("\\c_", "'\\c_'");
209 CHECK_PARSE_EQ("\\c~", "'\\c~'");
210 CHECK_PARSE_EQ("\\c1", "'\\c1'");
211 // Control character inside character class.
212 CHECK_PARSE_EQ("[\\c!]", "[\\ c !]");
213 CHECK_PARSE_EQ("[\\c_]", "[\\x1f]");
214 CHECK_PARSE_EQ("[\\c~]", "[\\ c ~]");
215 CHECK_PARSE_EQ("[\\ca]", "[\\x01]");
216 CHECK_PARSE_EQ("[\\cz]", "[\\x1a]");
217 CHECK_PARSE_EQ("[\\cA]", "[\\x01]");
218 CHECK_PARSE_EQ("[\\cZ]", "[\\x1a]");
219 CHECK_PARSE_EQ("[\\c1]", "[\\x11]");
220
221 CHECK_PARSE_EQ("[a\\]c]", "[a ] c]");
222 CHECK_PARSE_EQ("\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ", "'[]{}()%^# '");
223 CHECK_PARSE_EQ("[\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ]", "[[ ] { } ( ) % ^ # ]");
224 CHECK_PARSE_EQ("\\0", "'\\x00'");
225 CHECK_PARSE_EQ("\\8", "'8'");
226 CHECK_PARSE_EQ("\\9", "'9'");
227 CHECK_PARSE_EQ("\\11", "'\\x09'");
228 CHECK_PARSE_EQ("\\11a", "'\\x09a'");
229 CHECK_PARSE_EQ("\\011", "'\\x09'");
230 CHECK_PARSE_EQ("\\00011", "'\\x0011'");
231 CHECK_PARSE_EQ("\\118", "'\\x098'");
232 CHECK_PARSE_EQ("\\111", "'I'");
233 CHECK_PARSE_EQ("\\1111", "'I1'");
234 CHECK_PARSE_EQ("(x)(x)(x)\\1", "(: (^ 'x') (^ 'x') (^ 'x') (<- 1))");
235 CHECK_PARSE_EQ("(x)(x)(x)\\2", "(: (^ 'x') (^ 'x') (^ 'x') (<- 2))");
236 CHECK_PARSE_EQ("(x)(x)(x)\\3", "(: (^ 'x') (^ 'x') (^ 'x') (<- 3))");
237 CHECK_PARSE_EQ("(x)(x)(x)\\4", "(: (^ 'x') (^ 'x') (^ 'x') '\\x04')");
238 CHECK_PARSE_EQ("(x)(x)(x)\\1*", "(: (^ 'x') (^ 'x') (^ 'x')"
239 " (# 0 - g (<- 1)))");
240 CHECK_PARSE_EQ("(x)(x)(x)\\2*", "(: (^ 'x') (^ 'x') (^ 'x')"
241 " (# 0 - g (<- 2)))");
242 CHECK_PARSE_EQ("(x)(x)(x)\\3*", "(: (^ 'x') (^ 'x') (^ 'x')"
243 " (# 0 - g (<- 3)))");
244 CHECK_PARSE_EQ("(x)(x)(x)\\4*", "(: (^ 'x') (^ 'x') (^ 'x')"
245 " (# 0 - g '\\x04'))");
246 CHECK_PARSE_EQ("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\10",
247 "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
248 " (^ 'x') (^ 'x') (^ 'x') (^ 'x') (<- 10))");
249 CHECK_PARSE_EQ("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\11",
250 "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
251 " (^ 'x') (^ 'x') (^ 'x') (^ 'x') '\\x09')");
252 CHECK_PARSE_EQ("(a)\\1", "(: (^ 'a') (<- 1))");
253 CHECK_PARSE_EQ("(a\\1)", "(^ 'a')");
254 CHECK_PARSE_EQ("(\\1a)", "(^ 'a')");
255 CHECK_PARSE_EQ("(?=a)?a", "'a'");
256 CHECK_PARSE_EQ("(?=a){0,10}a", "'a'");
257 CHECK_PARSE_EQ("(?=a){1,10}a", "(: (-> + 'a') 'a')");
258 CHECK_PARSE_EQ("(?=a){9,10}a", "(: (-> + 'a') 'a')");
259 CHECK_PARSE_EQ("(?!a)?a", "'a'");
260 CHECK_PARSE_EQ("\\1(a)", "(^ 'a')");
261 CHECK_PARSE_EQ("(?!(a))\\1", "(: (-> - (^ 'a')) (<- 1))");
262 CHECK_PARSE_EQ("(?!\\1(a\\1)\\1)\\1", "(: (-> - (: (^ 'a') (<- 1))) (<- 1))");
263 CHECK_PARSE_EQ("[\\0]", "[\\x00]");
264 CHECK_PARSE_EQ("[\\11]", "[\\x09]");
265 CHECK_PARSE_EQ("[\\11a]", "[\\x09 a]");
266 CHECK_PARSE_EQ("[\\011]", "[\\x09]");
267 CHECK_PARSE_EQ("[\\00011]", "[\\x00 1 1]");
268 CHECK_PARSE_EQ("[\\118]", "[\\x09 8]");
269 CHECK_PARSE_EQ("[\\111]", "[I]");
270 CHECK_PARSE_EQ("[\\1111]", "[I 1]");
271 CHECK_PARSE_EQ("\\x34", "'\x34'");
272 CHECK_PARSE_EQ("\\x60", "'\x60'");
273 CHECK_PARSE_EQ("\\x3z", "'x3z'");
274 CHECK_PARSE_EQ("\\c", "'\\c'");
275 CHECK_PARSE_EQ("\\u0034", "'\x34'");
276 CHECK_PARSE_EQ("\\u003z", "'u003z'");
277 CHECK_PARSE_EQ("foo[z]*", "(: 'foo' (# 0 - g [z]))");
278
279 CHECK_SIMPLE("", false);
280 CHECK_SIMPLE("a", true);
281 CHECK_SIMPLE("a|b", false);
282 CHECK_SIMPLE("a\\n", false);
283 CHECK_SIMPLE("^a", false);
284 CHECK_SIMPLE("a$", false);
285 CHECK_SIMPLE("a\\b!", false);
286 CHECK_SIMPLE("a\\Bb", false);
287 CHECK_SIMPLE("a*", false);
288 CHECK_SIMPLE("a*?", false);
289 CHECK_SIMPLE("a?", false);
290 CHECK_SIMPLE("a??", false);
291 CHECK_SIMPLE("a{0,1}?", false);
292 CHECK_SIMPLE("a{1,1}?", false);
293 CHECK_SIMPLE("a{1,2}?", false);
294 CHECK_SIMPLE("a+?", false);
295 CHECK_SIMPLE("(a)", false);
296 CHECK_SIMPLE("(a)\\1", false);
297 CHECK_SIMPLE("(\\1a)", false);
298 CHECK_SIMPLE("\\1(a)", false);
299 CHECK_SIMPLE("a\\s", false);
300 CHECK_SIMPLE("a\\S", false);
301 CHECK_SIMPLE("a\\d", false);
302 CHECK_SIMPLE("a\\D", false);
303 CHECK_SIMPLE("a\\w", false);
304 CHECK_SIMPLE("a\\W", false);
305 CHECK_SIMPLE("a.", false);
306 CHECK_SIMPLE("a\\q", false);
307 CHECK_SIMPLE("a[a]", false);
308 CHECK_SIMPLE("a[^a]", false);
309 CHECK_SIMPLE("a[a-z]", false);
310 CHECK_SIMPLE("a[\\q]", false);
311 CHECK_SIMPLE("a(?:b)", false);
312 CHECK_SIMPLE("a(?=b)", false);
313 CHECK_SIMPLE("a(?!b)", false);
314 CHECK_SIMPLE("\\x60", false);
315 CHECK_SIMPLE("\\u0060", false);
316 CHECK_SIMPLE("\\cA", false);
317 CHECK_SIMPLE("\\q", false);
318 CHECK_SIMPLE("\\1112", false);
319 CHECK_SIMPLE("\\0", false);
320 CHECK_SIMPLE("(a)\\1", false);
321 CHECK_SIMPLE("(?=a)?a", false);
322 CHECK_SIMPLE("(?!a)?a\\1", false);
323 CHECK_SIMPLE("(?:(?=a))a\\1", false);
324
325 CHECK_PARSE_EQ("a{}", "'a{}'");
326 CHECK_PARSE_EQ("a{,}", "'a{,}'");
327 CHECK_PARSE_EQ("a{", "'a{'");
328 CHECK_PARSE_EQ("a{z}", "'a{z}'");
329 CHECK_PARSE_EQ("a{1z}", "'a{1z}'");
330 CHECK_PARSE_EQ("a{12z}", "'a{12z}'");
331 CHECK_PARSE_EQ("a{12,", "'a{12,'");
332 CHECK_PARSE_EQ("a{12,3b", "'a{12,3b'");
333 CHECK_PARSE_EQ("{}", "'{}'");
334 CHECK_PARSE_EQ("{,}", "'{,}'");
335 CHECK_PARSE_EQ("{", "'{'");
336 CHECK_PARSE_EQ("{z}", "'{z}'");
337 CHECK_PARSE_EQ("{1z}", "'{1z}'");
338 CHECK_PARSE_EQ("{12z}", "'{12z}'");
339 CHECK_PARSE_EQ("{12,", "'{12,'");
340 CHECK_PARSE_EQ("{12,3b", "'{12,3b'");
341
342 CHECK_MIN_MAX("a", 1, 1);
343 CHECK_MIN_MAX("abc", 3, 3);
344 CHECK_MIN_MAX("a[bc]d", 3, 3);
345 CHECK_MIN_MAX("a|bc", 1, 2);
346 CHECK_MIN_MAX("ab|c", 1, 2);
347 CHECK_MIN_MAX("a||bc", 0, 2);
348 CHECK_MIN_MAX("|", 0, 0);
349 CHECK_MIN_MAX("(?:ab)", 2, 2);
350 CHECK_MIN_MAX("(?:ab|cde)", 2, 3);
351 CHECK_MIN_MAX("(?:ab)|cde", 2, 3);
352 CHECK_MIN_MAX("(ab)", 2, 2);
353 CHECK_MIN_MAX("(ab|cde)", 2, 3);
354 CHECK_MIN_MAX("(ab)\\1", 2, 4);
355 CHECK_MIN_MAX("(ab|cde)\\1", 2, 6);
356 CHECK_MIN_MAX("(?:ab)?", 0, 2);
357 CHECK_MIN_MAX("(?:ab)*", 0, RegExpTree::kInfinity);
358 CHECK_MIN_MAX("(?:ab)+", 2, RegExpTree::kInfinity);
359 CHECK_MIN_MAX("a?", 0, 1);
360 CHECK_MIN_MAX("a*", 0, RegExpTree::kInfinity);
361 CHECK_MIN_MAX("a+", 1, RegExpTree::kInfinity);
362 CHECK_MIN_MAX("a??", 0, 1);
363 CHECK_MIN_MAX("a*?", 0, RegExpTree::kInfinity);
364 CHECK_MIN_MAX("a+?", 1, RegExpTree::kInfinity);
365 CHECK_MIN_MAX("(?:a?)?", 0, 1);
366 CHECK_MIN_MAX("(?:a*)?", 0, RegExpTree::kInfinity);
367 CHECK_MIN_MAX("(?:a+)?", 0, RegExpTree::kInfinity);
368 CHECK_MIN_MAX("(?:a?)+", 0, RegExpTree::kInfinity);
369 CHECK_MIN_MAX("(?:a*)+", 0, RegExpTree::kInfinity);
370 CHECK_MIN_MAX("(?:a+)+", 1, RegExpTree::kInfinity);
371 CHECK_MIN_MAX("(?:a?)*", 0, RegExpTree::kInfinity);
372 CHECK_MIN_MAX("(?:a*)*", 0, RegExpTree::kInfinity);
373 CHECK_MIN_MAX("(?:a+)*", 0, RegExpTree::kInfinity);
374 CHECK_MIN_MAX("a{0}", 0, 0);
375 CHECK_MIN_MAX("(?:a+){0}", 0, 0);
376 CHECK_MIN_MAX("(?:a+){0,0}", 0, 0);
377 CHECK_MIN_MAX("a*b", 1, RegExpTree::kInfinity);
378 CHECK_MIN_MAX("a+b", 2, RegExpTree::kInfinity);
379 CHECK_MIN_MAX("a*b|c", 1, RegExpTree::kInfinity);
380 CHECK_MIN_MAX("a+b|c", 1, RegExpTree::kInfinity);
381 CHECK_MIN_MAX("(?:a{5,1000000}){3,1000000}", 15, RegExpTree::kInfinity);
382 CHECK_MIN_MAX("(?:ab){4,7}", 8, 14);
383 CHECK_MIN_MAX("a\\bc", 2, 2);
384 CHECK_MIN_MAX("a\\Bc", 2, 2);
385 CHECK_MIN_MAX("a\\sc", 3, 3);
386 CHECK_MIN_MAX("a\\Sc", 3, 3);
387 CHECK_MIN_MAX("a(?=b)c", 2, 2);
388 CHECK_MIN_MAX("a(?=bbb|bb)c", 2, 2);
389 CHECK_MIN_MAX("a(?!bbb|bb)c", 2, 2);
390 }
391
392
TEST(ParserRegression)393 TEST(ParserRegression) {
394 CHECK_PARSE_EQ("[A-Z$-][x]", "(! [A-Z $ -] [x])");
395 CHECK_PARSE_EQ("a{3,4*}", "(: 'a{3,' (# 0 - g '4') '}')");
396 CHECK_PARSE_EQ("{", "'{'");
397 CHECK_PARSE_EQ("a|", "(| 'a' %)");
398 }
399
ExpectError(const char * input,const char * expected)400 static void ExpectError(const char* input,
401 const char* expected) {
402 V8::Initialize(NULL);
403 v8::HandleScope scope(CcTest::isolate());
404 Zone zone(CcTest::i_isolate());
405 FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
406 RegExpCompileData result;
407 CHECK(!v8::internal::RegExpParser::ParseRegExp(
408 &reader, false, &result, &zone));
409 CHECK(result.tree == NULL);
410 CHECK(!result.error.is_null());
411 SmartArrayPointer<char> str = result.error->ToCString(ALLOW_NULLS);
412 CHECK_EQ(expected, str.get());
413 }
414
415
TEST(Errors)416 TEST(Errors) {
417 const char* kEndBackslash = "\\ at end of pattern";
418 ExpectError("\\", kEndBackslash);
419 const char* kUnterminatedGroup = "Unterminated group";
420 ExpectError("(foo", kUnterminatedGroup);
421 const char* kInvalidGroup = "Invalid group";
422 ExpectError("(?", kInvalidGroup);
423 const char* kUnterminatedCharacterClass = "Unterminated character class";
424 ExpectError("[", kUnterminatedCharacterClass);
425 ExpectError("[a-", kUnterminatedCharacterClass);
426 const char* kNothingToRepeat = "Nothing to repeat";
427 ExpectError("*", kNothingToRepeat);
428 ExpectError("?", kNothingToRepeat);
429 ExpectError("+", kNothingToRepeat);
430 ExpectError("{1}", kNothingToRepeat);
431 ExpectError("{1,2}", kNothingToRepeat);
432 ExpectError("{1,}", kNothingToRepeat);
433
434 // Check that we don't allow more than kMaxCapture captures
435 const int kMaxCaptures = 1 << 16; // Must match RegExpParser::kMaxCaptures.
436 const char* kTooManyCaptures = "Too many captures";
437 HeapStringAllocator allocator;
438 StringStream accumulator(&allocator);
439 for (int i = 0; i <= kMaxCaptures; i++) {
440 accumulator.Add("()");
441 }
442 SmartArrayPointer<const char> many_captures(accumulator.ToCString());
443 ExpectError(many_captures.get(), kTooManyCaptures);
444 }
445
446
IsDigit(uc16 c)447 static bool IsDigit(uc16 c) {
448 return ('0' <= c && c <= '9');
449 }
450
451
NotDigit(uc16 c)452 static bool NotDigit(uc16 c) {
453 return !IsDigit(c);
454 }
455
456
IsWhiteSpaceOrLineTerminator(uc16 c)457 static bool IsWhiteSpaceOrLineTerminator(uc16 c) {
458 // According to ECMA 5.1, 15.10.2.12 the CharacterClassEscape \s includes
459 // WhiteSpace (7.2) and LineTerminator (7.3) values.
460 return v8::internal::WhiteSpaceOrLineTerminator::Is(c);
461 }
462
463
NotWhiteSpaceNorLineTermiantor(uc16 c)464 static bool NotWhiteSpaceNorLineTermiantor(uc16 c) {
465 return !IsWhiteSpaceOrLineTerminator(c);
466 }
467
468
NotWord(uc16 c)469 static bool NotWord(uc16 c) {
470 return !IsRegExpWord(c);
471 }
472
473
TestCharacterClassEscapes(uc16 c,bool (pred)(uc16 c))474 static void TestCharacterClassEscapes(uc16 c, bool (pred)(uc16 c)) {
475 Zone zone(CcTest::i_isolate());
476 ZoneList<CharacterRange>* ranges =
477 new(&zone) ZoneList<CharacterRange>(2, &zone);
478 CharacterRange::AddClassEscape(c, ranges, &zone);
479 for (unsigned i = 0; i < (1 << 16); i++) {
480 bool in_class = false;
481 for (int j = 0; !in_class && j < ranges->length(); j++) {
482 CharacterRange& range = ranges->at(j);
483 in_class = (range.from() <= i && i <= range.to());
484 }
485 CHECK_EQ(pred(i), in_class);
486 }
487 }
488
489
TEST(CharacterClassEscapes)490 TEST(CharacterClassEscapes) {
491 v8::internal::V8::Initialize(NULL);
492 TestCharacterClassEscapes('.', IsRegExpNewline);
493 TestCharacterClassEscapes('d', IsDigit);
494 TestCharacterClassEscapes('D', NotDigit);
495 TestCharacterClassEscapes('s', IsWhiteSpaceOrLineTerminator);
496 TestCharacterClassEscapes('S', NotWhiteSpaceNorLineTermiantor);
497 TestCharacterClassEscapes('w', IsRegExpWord);
498 TestCharacterClassEscapes('W', NotWord);
499 }
500
501
Compile(const char * input,bool multiline,bool is_ascii,Zone * zone)502 static RegExpNode* Compile(const char* input,
503 bool multiline,
504 bool is_ascii,
505 Zone* zone) {
506 V8::Initialize(NULL);
507 Isolate* isolate = CcTest::i_isolate();
508 FlatStringReader reader(isolate, CStrVector(input));
509 RegExpCompileData compile_data;
510 if (!v8::internal::RegExpParser::ParseRegExp(&reader, multiline,
511 &compile_data, zone))
512 return NULL;
513 Handle<String> pattern = isolate->factory()->
514 NewStringFromUtf8(CStrVector(input)).ToHandleChecked();
515 Handle<String> sample_subject =
516 isolate->factory()->NewStringFromUtf8(CStrVector("")).ToHandleChecked();
517 RegExpEngine::Compile(&compile_data,
518 false,
519 false,
520 multiline,
521 pattern,
522 sample_subject,
523 is_ascii,
524 zone);
525 return compile_data.node;
526 }
527
528
Execute(const char * input,bool multiline,bool is_ascii,bool dot_output=false)529 static void Execute(const char* input,
530 bool multiline,
531 bool is_ascii,
532 bool dot_output = false) {
533 v8::HandleScope scope(CcTest::isolate());
534 Zone zone(CcTest::i_isolate());
535 RegExpNode* node = Compile(input, multiline, is_ascii, &zone);
536 USE(node);
537 #ifdef DEBUG
538 if (dot_output) {
539 RegExpEngine::DotPrint(input, node, false);
540 }
541 #endif // DEBUG
542 }
543
544
545 class TestConfig {
546 public:
547 typedef int Key;
548 typedef int Value;
549 static const int kNoKey;
NoValue()550 static int NoValue() { return 0; }
Compare(int a,int b)551 static inline int Compare(int a, int b) {
552 if (a < b)
553 return -1;
554 else if (a > b)
555 return 1;
556 else
557 return 0;
558 }
559 };
560
561
562 const int TestConfig::kNoKey = 0;
563
564
PseudoRandom(int i,int j)565 static unsigned PseudoRandom(int i, int j) {
566 return ~(~((i * 781) ^ (j * 329)));
567 }
568
569
TEST(SplayTreeSimple)570 TEST(SplayTreeSimple) {
571 v8::internal::V8::Initialize(NULL);
572 static const unsigned kLimit = 1000;
573 Zone zone(CcTest::i_isolate());
574 ZoneSplayTree<TestConfig> tree(&zone);
575 bool seen[kLimit];
576 for (unsigned i = 0; i < kLimit; i++) seen[i] = false;
577 #define CHECK_MAPS_EQUAL() do { \
578 for (unsigned k = 0; k < kLimit; k++) \
579 CHECK_EQ(seen[k], tree.Find(k, &loc)); \
580 } while (false)
581 for (int i = 0; i < 50; i++) {
582 for (int j = 0; j < 50; j++) {
583 unsigned next = PseudoRandom(i, j) % kLimit;
584 if (seen[next]) {
585 // We've already seen this one. Check the value and remove
586 // it.
587 ZoneSplayTree<TestConfig>::Locator loc;
588 CHECK(tree.Find(next, &loc));
589 CHECK_EQ(next, loc.key());
590 CHECK_EQ(3 * next, loc.value());
591 tree.Remove(next);
592 seen[next] = false;
593 CHECK_MAPS_EQUAL();
594 } else {
595 // Check that it wasn't there already and then add it.
596 ZoneSplayTree<TestConfig>::Locator loc;
597 CHECK(!tree.Find(next, &loc));
598 CHECK(tree.Insert(next, &loc));
599 CHECK_EQ(next, loc.key());
600 loc.set_value(3 * next);
601 seen[next] = true;
602 CHECK_MAPS_EQUAL();
603 }
604 int val = PseudoRandom(j, i) % kLimit;
605 if (seen[val]) {
606 ZoneSplayTree<TestConfig>::Locator loc;
607 CHECK(tree.FindGreatestLessThan(val, &loc));
608 CHECK_EQ(loc.key(), val);
609 break;
610 }
611 val = PseudoRandom(i + j, i - j) % kLimit;
612 if (seen[val]) {
613 ZoneSplayTree<TestConfig>::Locator loc;
614 CHECK(tree.FindLeastGreaterThan(val, &loc));
615 CHECK_EQ(loc.key(), val);
616 break;
617 }
618 }
619 }
620 }
621
622
TEST(DispatchTableConstruction)623 TEST(DispatchTableConstruction) {
624 v8::internal::V8::Initialize(NULL);
625 // Initialize test data.
626 static const int kLimit = 1000;
627 static const int kRangeCount = 8;
628 static const int kRangeSize = 16;
629 uc16 ranges[kRangeCount][2 * kRangeSize];
630 for (int i = 0; i < kRangeCount; i++) {
631 Vector<uc16> range(ranges[i], 2 * kRangeSize);
632 for (int j = 0; j < 2 * kRangeSize; j++) {
633 range[j] = PseudoRandom(i + 25, j + 87) % kLimit;
634 }
635 range.Sort();
636 for (int j = 1; j < 2 * kRangeSize; j++) {
637 CHECK(range[j-1] <= range[j]);
638 }
639 }
640 // Enter test data into dispatch table.
641 Zone zone(CcTest::i_isolate());
642 DispatchTable table(&zone);
643 for (int i = 0; i < kRangeCount; i++) {
644 uc16* range = ranges[i];
645 for (int j = 0; j < 2 * kRangeSize; j += 2)
646 table.AddRange(CharacterRange(range[j], range[j + 1]), i, &zone);
647 }
648 // Check that the table looks as we would expect
649 for (int p = 0; p < kLimit; p++) {
650 OutSet* outs = table.Get(p);
651 for (int j = 0; j < kRangeCount; j++) {
652 uc16* range = ranges[j];
653 bool is_on = false;
654 for (int k = 0; !is_on && (k < 2 * kRangeSize); k += 2)
655 is_on = (range[k] <= p && p <= range[k + 1]);
656 CHECK_EQ(is_on, outs->Get(j));
657 }
658 }
659 }
660
661
662 // Test of debug-only syntax.
663 #ifdef DEBUG
664
TEST(ParsePossessiveRepetition)665 TEST(ParsePossessiveRepetition) {
666 bool old_flag_value = FLAG_regexp_possessive_quantifier;
667
668 // Enable possessive quantifier syntax.
669 FLAG_regexp_possessive_quantifier = true;
670
671 CHECK_PARSE_EQ("a*+", "(# 0 - p 'a')");
672 CHECK_PARSE_EQ("a++", "(# 1 - p 'a')");
673 CHECK_PARSE_EQ("a?+", "(# 0 1 p 'a')");
674 CHECK_PARSE_EQ("a{10,20}+", "(# 10 20 p 'a')");
675 CHECK_PARSE_EQ("za{10,20}+b", "(: 'z' (# 10 20 p 'a') 'b')");
676
677 // Disable possessive quantifier syntax.
678 FLAG_regexp_possessive_quantifier = false;
679
680 CHECK_PARSE_ERROR("a*+");
681 CHECK_PARSE_ERROR("a++");
682 CHECK_PARSE_ERROR("a?+");
683 CHECK_PARSE_ERROR("a{10,20}+");
684 CHECK_PARSE_ERROR("a{10,20}+b");
685
686 FLAG_regexp_possessive_quantifier = old_flag_value;
687 }
688
689 #endif
690
691 // Tests of interpreter.
692
693
694 #ifndef V8_INTERPRETED_REGEXP
695
696 #if V8_TARGET_ARCH_IA32
697 typedef RegExpMacroAssemblerIA32 ArchRegExpMacroAssembler;
698 #elif V8_TARGET_ARCH_X64
699 typedef RegExpMacroAssemblerX64 ArchRegExpMacroAssembler;
700 #elif V8_TARGET_ARCH_ARM
701 typedef RegExpMacroAssemblerARM ArchRegExpMacroAssembler;
702 #elif V8_TARGET_ARCH_ARM64
703 typedef RegExpMacroAssemblerARM64 ArchRegExpMacroAssembler;
704 #elif V8_TARGET_ARCH_MIPS
705 typedef RegExpMacroAssemblerMIPS ArchRegExpMacroAssembler;
706 #elif V8_TARGET_ARCH_X87
707 typedef RegExpMacroAssemblerX87 ArchRegExpMacroAssembler;
708 #endif
709
710 class ContextInitializer {
711 public:
ContextInitializer()712 ContextInitializer()
713 : scope_(CcTest::isolate()),
714 env_(v8::Context::New(CcTest::isolate())) {
715 env_->Enter();
716 }
~ContextInitializer()717 ~ContextInitializer() {
718 env_->Exit();
719 }
720 private:
721 v8::HandleScope scope_;
722 v8::Handle<v8::Context> env_;
723 };
724
725
Execute(Code * code,String * input,int start_offset,const byte * input_start,const byte * input_end,int * captures)726 static ArchRegExpMacroAssembler::Result Execute(Code* code,
727 String* input,
728 int start_offset,
729 const byte* input_start,
730 const byte* input_end,
731 int* captures) {
732 return NativeRegExpMacroAssembler::Execute(
733 code,
734 input,
735 start_offset,
736 input_start,
737 input_end,
738 captures,
739 0,
740 CcTest::i_isolate());
741 }
742
743
TEST(MacroAssemblerNativeSuccess)744 TEST(MacroAssemblerNativeSuccess) {
745 v8::V8::Initialize();
746 ContextInitializer initializer;
747 Isolate* isolate = CcTest::i_isolate();
748 Factory* factory = isolate->factory();
749 Zone zone(isolate);
750
751 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
752
753 m.Succeed();
754
755 Handle<String> source = factory->NewStringFromStaticAscii("");
756 Handle<Object> code_object = m.GetCode(source);
757 Handle<Code> code = Handle<Code>::cast(code_object);
758
759 int captures[4] = {42, 37, 87, 117};
760 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
761 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
762 const byte* start_adr =
763 reinterpret_cast<const byte*>(seq_input->GetCharsAddress());
764
765 NativeRegExpMacroAssembler::Result result =
766 Execute(*code,
767 *input,
768 0,
769 start_adr,
770 start_adr + seq_input->length(),
771 captures);
772
773 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
774 CHECK_EQ(-1, captures[0]);
775 CHECK_EQ(-1, captures[1]);
776 CHECK_EQ(-1, captures[2]);
777 CHECK_EQ(-1, captures[3]);
778 }
779
780
TEST(MacroAssemblerNativeSimple)781 TEST(MacroAssemblerNativeSimple) {
782 v8::V8::Initialize();
783 ContextInitializer initializer;
784 Isolate* isolate = CcTest::i_isolate();
785 Factory* factory = isolate->factory();
786 Zone zone(isolate);
787
788 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
789
790 Label fail, backtrack;
791 m.PushBacktrack(&fail);
792 m.CheckNotAtStart(NULL);
793 m.LoadCurrentCharacter(2, NULL);
794 m.CheckNotCharacter('o', NULL);
795 m.LoadCurrentCharacter(1, NULL, false);
796 m.CheckNotCharacter('o', NULL);
797 m.LoadCurrentCharacter(0, NULL, false);
798 m.CheckNotCharacter('f', NULL);
799 m.WriteCurrentPositionToRegister(0, 0);
800 m.WriteCurrentPositionToRegister(1, 3);
801 m.AdvanceCurrentPosition(3);
802 m.PushBacktrack(&backtrack);
803 m.Succeed();
804 m.Bind(&backtrack);
805 m.Backtrack();
806 m.Bind(&fail);
807 m.Fail();
808
809 Handle<String> source = factory->NewStringFromStaticAscii("^foo");
810 Handle<Object> code_object = m.GetCode(source);
811 Handle<Code> code = Handle<Code>::cast(code_object);
812
813 int captures[4] = {42, 37, 87, 117};
814 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
815 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
816 Address start_adr = seq_input->GetCharsAddress();
817
818 NativeRegExpMacroAssembler::Result result =
819 Execute(*code,
820 *input,
821 0,
822 start_adr,
823 start_adr + input->length(),
824 captures);
825
826 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
827 CHECK_EQ(0, captures[0]);
828 CHECK_EQ(3, captures[1]);
829 CHECK_EQ(-1, captures[2]);
830 CHECK_EQ(-1, captures[3]);
831
832 input = factory->NewStringFromStaticAscii("barbarbar");
833 seq_input = Handle<SeqOneByteString>::cast(input);
834 start_adr = seq_input->GetCharsAddress();
835
836 result = Execute(*code,
837 *input,
838 0,
839 start_adr,
840 start_adr + input->length(),
841 captures);
842
843 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
844 }
845
846
TEST(MacroAssemblerNativeSimpleUC16)847 TEST(MacroAssemblerNativeSimpleUC16) {
848 v8::V8::Initialize();
849 ContextInitializer initializer;
850 Isolate* isolate = CcTest::i_isolate();
851 Factory* factory = isolate->factory();
852 Zone zone(isolate);
853
854 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::UC16, 4, &zone);
855
856 Label fail, backtrack;
857 m.PushBacktrack(&fail);
858 m.CheckNotAtStart(NULL);
859 m.LoadCurrentCharacter(2, NULL);
860 m.CheckNotCharacter('o', NULL);
861 m.LoadCurrentCharacter(1, NULL, false);
862 m.CheckNotCharacter('o', NULL);
863 m.LoadCurrentCharacter(0, NULL, false);
864 m.CheckNotCharacter('f', NULL);
865 m.WriteCurrentPositionToRegister(0, 0);
866 m.WriteCurrentPositionToRegister(1, 3);
867 m.AdvanceCurrentPosition(3);
868 m.PushBacktrack(&backtrack);
869 m.Succeed();
870 m.Bind(&backtrack);
871 m.Backtrack();
872 m.Bind(&fail);
873 m.Fail();
874
875 Handle<String> source = factory->NewStringFromStaticAscii("^foo");
876 Handle<Object> code_object = m.GetCode(source);
877 Handle<Code> code = Handle<Code>::cast(code_object);
878
879 int captures[4] = {42, 37, 87, 117};
880 const uc16 input_data[6] = {'f', 'o', 'o', 'f', 'o',
881 static_cast<uc16>(0x2603)};
882 Handle<String> input = factory->NewStringFromTwoByte(
883 Vector<const uc16>(input_data, 6)).ToHandleChecked();
884 Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
885 Address start_adr = seq_input->GetCharsAddress();
886
887 NativeRegExpMacroAssembler::Result result =
888 Execute(*code,
889 *input,
890 0,
891 start_adr,
892 start_adr + input->length(),
893 captures);
894
895 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
896 CHECK_EQ(0, captures[0]);
897 CHECK_EQ(3, captures[1]);
898 CHECK_EQ(-1, captures[2]);
899 CHECK_EQ(-1, captures[3]);
900
901 const uc16 input_data2[9] = {'b', 'a', 'r', 'b', 'a', 'r', 'b', 'a',
902 static_cast<uc16>(0x2603)};
903 input = factory->NewStringFromTwoByte(
904 Vector<const uc16>(input_data2, 9)).ToHandleChecked();
905 seq_input = Handle<SeqTwoByteString>::cast(input);
906 start_adr = seq_input->GetCharsAddress();
907
908 result = Execute(*code,
909 *input,
910 0,
911 start_adr,
912 start_adr + input->length() * 2,
913 captures);
914
915 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
916 }
917
918
TEST(MacroAssemblerNativeBacktrack)919 TEST(MacroAssemblerNativeBacktrack) {
920 v8::V8::Initialize();
921 ContextInitializer initializer;
922 Isolate* isolate = CcTest::i_isolate();
923 Factory* factory = isolate->factory();
924 Zone zone(isolate);
925
926 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
927
928 Label fail;
929 Label backtrack;
930 m.LoadCurrentCharacter(10, &fail);
931 m.Succeed();
932 m.Bind(&fail);
933 m.PushBacktrack(&backtrack);
934 m.LoadCurrentCharacter(10, NULL);
935 m.Succeed();
936 m.Bind(&backtrack);
937 m.Fail();
938
939 Handle<String> source = factory->NewStringFromStaticAscii("..........");
940 Handle<Object> code_object = m.GetCode(source);
941 Handle<Code> code = Handle<Code>::cast(code_object);
942
943 Handle<String> input = factory->NewStringFromStaticAscii("foofoo");
944 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
945 Address start_adr = seq_input->GetCharsAddress();
946
947 NativeRegExpMacroAssembler::Result result =
948 Execute(*code,
949 *input,
950 0,
951 start_adr,
952 start_adr + input->length(),
953 NULL);
954
955 CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
956 }
957
958
TEST(MacroAssemblerNativeBackReferenceASCII)959 TEST(MacroAssemblerNativeBackReferenceASCII) {
960 v8::V8::Initialize();
961 ContextInitializer initializer;
962 Isolate* isolate = CcTest::i_isolate();
963 Factory* factory = isolate->factory();
964 Zone zone(isolate);
965
966 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
967
968 m.WriteCurrentPositionToRegister(0, 0);
969 m.AdvanceCurrentPosition(2);
970 m.WriteCurrentPositionToRegister(1, 0);
971 Label nomatch;
972 m.CheckNotBackReference(0, &nomatch);
973 m.Fail();
974 m.Bind(&nomatch);
975 m.AdvanceCurrentPosition(2);
976 Label missing_match;
977 m.CheckNotBackReference(0, &missing_match);
978 m.WriteCurrentPositionToRegister(2, 0);
979 m.Succeed();
980 m.Bind(&missing_match);
981 m.Fail();
982
983 Handle<String> source = factory->NewStringFromStaticAscii("^(..)..\1");
984 Handle<Object> code_object = m.GetCode(source);
985 Handle<Code> code = Handle<Code>::cast(code_object);
986
987 Handle<String> input = factory->NewStringFromStaticAscii("fooofo");
988 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
989 Address start_adr = seq_input->GetCharsAddress();
990
991 int output[4];
992 NativeRegExpMacroAssembler::Result result =
993 Execute(*code,
994 *input,
995 0,
996 start_adr,
997 start_adr + input->length(),
998 output);
999
1000 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1001 CHECK_EQ(0, output[0]);
1002 CHECK_EQ(2, output[1]);
1003 CHECK_EQ(6, output[2]);
1004 CHECK_EQ(-1, output[3]);
1005 }
1006
1007
TEST(MacroAssemblerNativeBackReferenceUC16)1008 TEST(MacroAssemblerNativeBackReferenceUC16) {
1009 v8::V8::Initialize();
1010 ContextInitializer initializer;
1011 Isolate* isolate = CcTest::i_isolate();
1012 Factory* factory = isolate->factory();
1013 Zone zone(isolate);
1014
1015 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::UC16, 4, &zone);
1016
1017 m.WriteCurrentPositionToRegister(0, 0);
1018 m.AdvanceCurrentPosition(2);
1019 m.WriteCurrentPositionToRegister(1, 0);
1020 Label nomatch;
1021 m.CheckNotBackReference(0, &nomatch);
1022 m.Fail();
1023 m.Bind(&nomatch);
1024 m.AdvanceCurrentPosition(2);
1025 Label missing_match;
1026 m.CheckNotBackReference(0, &missing_match);
1027 m.WriteCurrentPositionToRegister(2, 0);
1028 m.Succeed();
1029 m.Bind(&missing_match);
1030 m.Fail();
1031
1032 Handle<String> source = factory->NewStringFromStaticAscii("^(..)..\1");
1033 Handle<Object> code_object = m.GetCode(source);
1034 Handle<Code> code = Handle<Code>::cast(code_object);
1035
1036 const uc16 input_data[6] = {'f', 0x2028, 'o', 'o', 'f', 0x2028};
1037 Handle<String> input = factory->NewStringFromTwoByte(
1038 Vector<const uc16>(input_data, 6)).ToHandleChecked();
1039 Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
1040 Address start_adr = seq_input->GetCharsAddress();
1041
1042 int output[4];
1043 NativeRegExpMacroAssembler::Result result =
1044 Execute(*code,
1045 *input,
1046 0,
1047 start_adr,
1048 start_adr + input->length() * 2,
1049 output);
1050
1051 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1052 CHECK_EQ(0, output[0]);
1053 CHECK_EQ(2, output[1]);
1054 CHECK_EQ(6, output[2]);
1055 CHECK_EQ(-1, output[3]);
1056 }
1057
1058
1059
TEST(MacroAssemblernativeAtStart)1060 TEST(MacroAssemblernativeAtStart) {
1061 v8::V8::Initialize();
1062 ContextInitializer initializer;
1063 Isolate* isolate = CcTest::i_isolate();
1064 Factory* factory = isolate->factory();
1065 Zone zone(isolate);
1066
1067 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
1068
1069 Label not_at_start, newline, fail;
1070 m.CheckNotAtStart(¬_at_start);
1071 // Check that prevchar = '\n' and current = 'f'.
1072 m.CheckCharacter('\n', &newline);
1073 m.Bind(&fail);
1074 m.Fail();
1075 m.Bind(&newline);
1076 m.LoadCurrentCharacter(0, &fail);
1077 m.CheckNotCharacter('f', &fail);
1078 m.Succeed();
1079
1080 m.Bind(¬_at_start);
1081 // Check that prevchar = 'o' and current = 'b'.
1082 Label prevo;
1083 m.CheckCharacter('o', &prevo);
1084 m.Fail();
1085 m.Bind(&prevo);
1086 m.LoadCurrentCharacter(0, &fail);
1087 m.CheckNotCharacter('b', &fail);
1088 m.Succeed();
1089
1090 Handle<String> source = factory->NewStringFromStaticAscii("(^f|ob)");
1091 Handle<Object> code_object = m.GetCode(source);
1092 Handle<Code> code = Handle<Code>::cast(code_object);
1093
1094 Handle<String> input = factory->NewStringFromStaticAscii("foobar");
1095 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1096 Address start_adr = seq_input->GetCharsAddress();
1097
1098 NativeRegExpMacroAssembler::Result result =
1099 Execute(*code,
1100 *input,
1101 0,
1102 start_adr,
1103 start_adr + input->length(),
1104 NULL);
1105
1106 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1107
1108 result = Execute(*code,
1109 *input,
1110 3,
1111 start_adr + 3,
1112 start_adr + input->length(),
1113 NULL);
1114
1115 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1116 }
1117
1118
TEST(MacroAssemblerNativeBackRefNoCase)1119 TEST(MacroAssemblerNativeBackRefNoCase) {
1120 v8::V8::Initialize();
1121 ContextInitializer initializer;
1122 Isolate* isolate = CcTest::i_isolate();
1123 Factory* factory = isolate->factory();
1124 Zone zone(isolate);
1125
1126 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 4, &zone);
1127
1128 Label fail, succ;
1129
1130 m.WriteCurrentPositionToRegister(0, 0);
1131 m.WriteCurrentPositionToRegister(2, 0);
1132 m.AdvanceCurrentPosition(3);
1133 m.WriteCurrentPositionToRegister(3, 0);
1134 m.CheckNotBackReferenceIgnoreCase(2, &fail); // Match "AbC".
1135 m.CheckNotBackReferenceIgnoreCase(2, &fail); // Match "ABC".
1136 Label expected_fail;
1137 m.CheckNotBackReferenceIgnoreCase(2, &expected_fail);
1138 m.Bind(&fail);
1139 m.Fail();
1140
1141 m.Bind(&expected_fail);
1142 m.AdvanceCurrentPosition(3); // Skip "xYz"
1143 m.CheckNotBackReferenceIgnoreCase(2, &succ);
1144 m.Fail();
1145
1146 m.Bind(&succ);
1147 m.WriteCurrentPositionToRegister(1, 0);
1148 m.Succeed();
1149
1150 Handle<String> source =
1151 factory->NewStringFromStaticAscii("^(abc)\1\1(?!\1)...(?!\1)");
1152 Handle<Object> code_object = m.GetCode(source);
1153 Handle<Code> code = Handle<Code>::cast(code_object);
1154
1155 Handle<String> input =
1156 factory->NewStringFromStaticAscii("aBcAbCABCxYzab");
1157 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1158 Address start_adr = seq_input->GetCharsAddress();
1159
1160 int output[4];
1161 NativeRegExpMacroAssembler::Result result =
1162 Execute(*code,
1163 *input,
1164 0,
1165 start_adr,
1166 start_adr + input->length(),
1167 output);
1168
1169 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1170 CHECK_EQ(0, output[0]);
1171 CHECK_EQ(12, output[1]);
1172 CHECK_EQ(0, output[2]);
1173 CHECK_EQ(3, output[3]);
1174 }
1175
1176
1177
TEST(MacroAssemblerNativeRegisters)1178 TEST(MacroAssemblerNativeRegisters) {
1179 v8::V8::Initialize();
1180 ContextInitializer initializer;
1181 Isolate* isolate = CcTest::i_isolate();
1182 Factory* factory = isolate->factory();
1183 Zone zone(isolate);
1184
1185 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 6, &zone);
1186
1187 uc16 foo_chars[3] = {'f', 'o', 'o'};
1188 Vector<const uc16> foo(foo_chars, 3);
1189
1190 enum registers { out1, out2, out3, out4, out5, out6, sp, loop_cnt };
1191 Label fail;
1192 Label backtrack;
1193 m.WriteCurrentPositionToRegister(out1, 0); // Output: [0]
1194 m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1195 m.PushBacktrack(&backtrack);
1196 m.WriteStackPointerToRegister(sp);
1197 // Fill stack and registers
1198 m.AdvanceCurrentPosition(2);
1199 m.WriteCurrentPositionToRegister(out1, 0);
1200 m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1201 m.PushBacktrack(&fail);
1202 // Drop backtrack stack frames.
1203 m.ReadStackPointerFromRegister(sp);
1204 // And take the first backtrack (to &backtrack)
1205 m.Backtrack();
1206
1207 m.PushCurrentPosition();
1208 m.AdvanceCurrentPosition(2);
1209 m.PopCurrentPosition();
1210
1211 m.Bind(&backtrack);
1212 m.PopRegister(out1);
1213 m.ReadCurrentPositionFromRegister(out1);
1214 m.AdvanceCurrentPosition(3);
1215 m.WriteCurrentPositionToRegister(out2, 0); // [0,3]
1216
1217 Label loop;
1218 m.SetRegister(loop_cnt, 0); // loop counter
1219 m.Bind(&loop);
1220 m.AdvanceRegister(loop_cnt, 1);
1221 m.AdvanceCurrentPosition(1);
1222 m.IfRegisterLT(loop_cnt, 3, &loop);
1223 m.WriteCurrentPositionToRegister(out3, 0); // [0,3,6]
1224
1225 Label loop2;
1226 m.SetRegister(loop_cnt, 2); // loop counter
1227 m.Bind(&loop2);
1228 m.AdvanceRegister(loop_cnt, -1);
1229 m.AdvanceCurrentPosition(1);
1230 m.IfRegisterGE(loop_cnt, 0, &loop2);
1231 m.WriteCurrentPositionToRegister(out4, 0); // [0,3,6,9]
1232
1233 Label loop3;
1234 Label exit_loop3;
1235 m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1236 m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1237 m.ReadCurrentPositionFromRegister(out3);
1238 m.Bind(&loop3);
1239 m.AdvanceCurrentPosition(1);
1240 m.CheckGreedyLoop(&exit_loop3);
1241 m.GoTo(&loop3);
1242 m.Bind(&exit_loop3);
1243 m.PopCurrentPosition();
1244 m.WriteCurrentPositionToRegister(out5, 0); // [0,3,6,9,9,-1]
1245
1246 m.Succeed();
1247
1248 m.Bind(&fail);
1249 m.Fail();
1250
1251 Handle<String> source =
1252 factory->NewStringFromStaticAscii("<loop test>");
1253 Handle<Object> code_object = m.GetCode(source);
1254 Handle<Code> code = Handle<Code>::cast(code_object);
1255
1256 // String long enough for test (content doesn't matter).
1257 Handle<String> input =
1258 factory->NewStringFromStaticAscii("foofoofoofoofoo");
1259 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1260 Address start_adr = seq_input->GetCharsAddress();
1261
1262 int output[6];
1263 NativeRegExpMacroAssembler::Result result =
1264 Execute(*code,
1265 *input,
1266 0,
1267 start_adr,
1268 start_adr + input->length(),
1269 output);
1270
1271 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1272 CHECK_EQ(0, output[0]);
1273 CHECK_EQ(3, output[1]);
1274 CHECK_EQ(6, output[2]);
1275 CHECK_EQ(9, output[3]);
1276 CHECK_EQ(9, output[4]);
1277 CHECK_EQ(-1, output[5]);
1278 }
1279
1280
TEST(MacroAssemblerStackOverflow)1281 TEST(MacroAssemblerStackOverflow) {
1282 v8::V8::Initialize();
1283 ContextInitializer initializer;
1284 Isolate* isolate = CcTest::i_isolate();
1285 Factory* factory = isolate->factory();
1286 Zone zone(isolate);
1287
1288 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 0, &zone);
1289
1290 Label loop;
1291 m.Bind(&loop);
1292 m.PushBacktrack(&loop);
1293 m.GoTo(&loop);
1294
1295 Handle<String> source =
1296 factory->NewStringFromStaticAscii("<stack overflow test>");
1297 Handle<Object> code_object = m.GetCode(source);
1298 Handle<Code> code = Handle<Code>::cast(code_object);
1299
1300 // String long enough for test (content doesn't matter).
1301 Handle<String> input =
1302 factory->NewStringFromStaticAscii("dummy");
1303 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1304 Address start_adr = seq_input->GetCharsAddress();
1305
1306 NativeRegExpMacroAssembler::Result result =
1307 Execute(*code,
1308 *input,
1309 0,
1310 start_adr,
1311 start_adr + input->length(),
1312 NULL);
1313
1314 CHECK_EQ(NativeRegExpMacroAssembler::EXCEPTION, result);
1315 CHECK(isolate->has_pending_exception());
1316 isolate->clear_pending_exception();
1317 }
1318
1319
TEST(MacroAssemblerNativeLotsOfRegisters)1320 TEST(MacroAssemblerNativeLotsOfRegisters) {
1321 v8::V8::Initialize();
1322 ContextInitializer initializer;
1323 Isolate* isolate = CcTest::i_isolate();
1324 Factory* factory = isolate->factory();
1325 Zone zone(isolate);
1326
1327 ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 2, &zone);
1328
1329 // At least 2048, to ensure the allocated space for registers
1330 // span one full page.
1331 const int large_number = 8000;
1332 m.WriteCurrentPositionToRegister(large_number, 42);
1333 m.WriteCurrentPositionToRegister(0, 0);
1334 m.WriteCurrentPositionToRegister(1, 1);
1335 Label done;
1336 m.CheckNotBackReference(0, &done); // Performs a system-stack push.
1337 m.Bind(&done);
1338 m.PushRegister(large_number, RegExpMacroAssembler::kNoStackLimitCheck);
1339 m.PopRegister(1);
1340 m.Succeed();
1341
1342 Handle<String> source =
1343 factory->NewStringFromStaticAscii("<huge register space test>");
1344 Handle<Object> code_object = m.GetCode(source);
1345 Handle<Code> code = Handle<Code>::cast(code_object);
1346
1347 // String long enough for test (content doesn't matter).
1348 Handle<String> input =
1349 factory->NewStringFromStaticAscii("sample text");
1350 Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1351 Address start_adr = seq_input->GetCharsAddress();
1352
1353 int captures[2];
1354 NativeRegExpMacroAssembler::Result result =
1355 Execute(*code,
1356 *input,
1357 0,
1358 start_adr,
1359 start_adr + input->length(),
1360 captures);
1361
1362 CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1363 CHECK_EQ(0, captures[0]);
1364 CHECK_EQ(42, captures[1]);
1365
1366 isolate->clear_pending_exception();
1367 }
1368
1369 #else // V8_INTERPRETED_REGEXP
1370
TEST(MacroAssembler)1371 TEST(MacroAssembler) {
1372 V8::Initialize(NULL);
1373 byte codes[1024];
1374 Zone zone(CcTest::i_isolate());
1375 RegExpMacroAssemblerIrregexp m(Vector<byte>(codes, 1024), &zone);
1376 // ^f(o)o.
1377 Label start, fail, backtrack;
1378
1379 m.SetRegister(4, 42);
1380 m.PushRegister(4, RegExpMacroAssembler::kNoStackLimitCheck);
1381 m.AdvanceRegister(4, 42);
1382 m.GoTo(&start);
1383 m.Fail();
1384 m.Bind(&start);
1385 m.PushBacktrack(&fail);
1386 m.CheckNotAtStart(NULL);
1387 m.LoadCurrentCharacter(0, NULL);
1388 m.CheckNotCharacter('f', NULL);
1389 m.LoadCurrentCharacter(1, NULL);
1390 m.CheckNotCharacter('o', NULL);
1391 m.LoadCurrentCharacter(2, NULL);
1392 m.CheckNotCharacter('o', NULL);
1393 m.WriteCurrentPositionToRegister(0, 0);
1394 m.WriteCurrentPositionToRegister(1, 3);
1395 m.WriteCurrentPositionToRegister(2, 1);
1396 m.WriteCurrentPositionToRegister(3, 2);
1397 m.AdvanceCurrentPosition(3);
1398 m.PushBacktrack(&backtrack);
1399 m.Succeed();
1400 m.Bind(&backtrack);
1401 m.ClearRegisters(2, 3);
1402 m.Backtrack();
1403 m.Bind(&fail);
1404 m.PopRegister(0);
1405 m.Fail();
1406
1407 Isolate* isolate = CcTest::i_isolate();
1408 Factory* factory = isolate->factory();
1409 HandleScope scope(isolate);
1410
1411 Handle<String> source = factory->NewStringFromStaticAscii("^f(o)o");
1412 Handle<ByteArray> array = Handle<ByteArray>::cast(m.GetCode(source));
1413 int captures[5];
1414
1415 const uc16 str1[] = {'f', 'o', 'o', 'b', 'a', 'r'};
1416 Handle<String> f1_16 = factory->NewStringFromTwoByte(
1417 Vector<const uc16>(str1, 6)).ToHandleChecked();
1418
1419 CHECK(IrregexpInterpreter::Match(isolate, array, f1_16, captures, 0));
1420 CHECK_EQ(0, captures[0]);
1421 CHECK_EQ(3, captures[1]);
1422 CHECK_EQ(1, captures[2]);
1423 CHECK_EQ(2, captures[3]);
1424 CHECK_EQ(84, captures[4]);
1425
1426 const uc16 str2[] = {'b', 'a', 'r', 'f', 'o', 'o'};
1427 Handle<String> f2_16 = factory->NewStringFromTwoByte(
1428 Vector<const uc16>(str2, 6)).ToHandleChecked();
1429
1430 CHECK(!IrregexpInterpreter::Match(isolate, array, f2_16, captures, 0));
1431 CHECK_EQ(42, captures[0]);
1432 }
1433
1434 #endif // V8_INTERPRETED_REGEXP
1435
1436
TEST(AddInverseToTable)1437 TEST(AddInverseToTable) {
1438 v8::internal::V8::Initialize(NULL);
1439 static const int kLimit = 1000;
1440 static const int kRangeCount = 16;
1441 for (int t = 0; t < 10; t++) {
1442 Zone zone(CcTest::i_isolate());
1443 ZoneList<CharacterRange>* ranges =
1444 new(&zone) ZoneList<CharacterRange>(kRangeCount, &zone);
1445 for (int i = 0; i < kRangeCount; i++) {
1446 int from = PseudoRandom(t + 87, i + 25) % kLimit;
1447 int to = from + (PseudoRandom(i + 87, t + 25) % (kLimit / 20));
1448 if (to > kLimit) to = kLimit;
1449 ranges->Add(CharacterRange(from, to), &zone);
1450 }
1451 DispatchTable table(&zone);
1452 DispatchTableConstructor cons(&table, false, &zone);
1453 cons.set_choice_index(0);
1454 cons.AddInverse(ranges);
1455 for (int i = 0; i < kLimit; i++) {
1456 bool is_on = false;
1457 for (int j = 0; !is_on && j < kRangeCount; j++)
1458 is_on = ranges->at(j).Contains(i);
1459 OutSet* set = table.Get(i);
1460 CHECK_EQ(is_on, set->Get(0) == false);
1461 }
1462 }
1463 Zone zone(CcTest::i_isolate());
1464 ZoneList<CharacterRange>* ranges =
1465 new(&zone) ZoneList<CharacterRange>(1, &zone);
1466 ranges->Add(CharacterRange(0xFFF0, 0xFFFE), &zone);
1467 DispatchTable table(&zone);
1468 DispatchTableConstructor cons(&table, false, &zone);
1469 cons.set_choice_index(0);
1470 cons.AddInverse(ranges);
1471 CHECK(!table.Get(0xFFFE)->Get(0));
1472 CHECK(table.Get(0xFFFF)->Get(0));
1473 }
1474
1475
canonicalize(uc32 c)1476 static uc32 canonicalize(uc32 c) {
1477 unibrow::uchar canon[unibrow::Ecma262Canonicalize::kMaxWidth];
1478 int count = unibrow::Ecma262Canonicalize::Convert(c, '\0', canon, NULL);
1479 if (count == 0) {
1480 return c;
1481 } else {
1482 CHECK_EQ(1, count);
1483 return canon[0];
1484 }
1485 }
1486
1487
TEST(LatinCanonicalize)1488 TEST(LatinCanonicalize) {
1489 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1490 for (char lower = 'a'; lower <= 'z'; lower++) {
1491 char upper = lower + ('A' - 'a');
1492 CHECK_EQ(canonicalize(lower), canonicalize(upper));
1493 unibrow::uchar uncanon[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1494 int length = un_canonicalize.get(lower, '\0', uncanon);
1495 CHECK_EQ(2, length);
1496 CHECK_EQ(upper, uncanon[0]);
1497 CHECK_EQ(lower, uncanon[1]);
1498 }
1499 for (uc32 c = 128; c < (1 << 21); c++)
1500 CHECK_GE(canonicalize(c), 128);
1501 unibrow::Mapping<unibrow::ToUppercase> to_upper;
1502 // Canonicalization is only defined for the Basic Multilingual Plane.
1503 for (uc32 c = 0; c < (1 << 16); c++) {
1504 unibrow::uchar upper[unibrow::ToUppercase::kMaxWidth];
1505 int length = to_upper.get(c, '\0', upper);
1506 if (length == 0) {
1507 length = 1;
1508 upper[0] = c;
1509 }
1510 uc32 u = upper[0];
1511 if (length > 1 || (c >= 128 && u < 128))
1512 u = c;
1513 CHECK_EQ(u, canonicalize(c));
1514 }
1515 }
1516
1517
CanonRangeEnd(uc32 c)1518 static uc32 CanonRangeEnd(uc32 c) {
1519 unibrow::uchar canon[unibrow::CanonicalizationRange::kMaxWidth];
1520 int count = unibrow::CanonicalizationRange::Convert(c, '\0', canon, NULL);
1521 if (count == 0) {
1522 return c;
1523 } else {
1524 CHECK_EQ(1, count);
1525 return canon[0];
1526 }
1527 }
1528
1529
TEST(RangeCanonicalization)1530 TEST(RangeCanonicalization) {
1531 // Check that we arrive at the same result when using the basic
1532 // range canonicalization primitives as when using immediate
1533 // canonicalization.
1534 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1535 int block_start = 0;
1536 while (block_start <= 0xFFFF) {
1537 uc32 block_end = CanonRangeEnd(block_start);
1538 unsigned block_length = block_end - block_start + 1;
1539 if (block_length > 1) {
1540 unibrow::uchar first[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1541 int first_length = un_canonicalize.get(block_start, '\0', first);
1542 for (unsigned i = 1; i < block_length; i++) {
1543 unibrow::uchar succ[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1544 int succ_length = un_canonicalize.get(block_start + i, '\0', succ);
1545 CHECK_EQ(first_length, succ_length);
1546 for (int j = 0; j < succ_length; j++) {
1547 int calc = first[j] + i;
1548 int found = succ[j];
1549 CHECK_EQ(calc, found);
1550 }
1551 }
1552 }
1553 block_start = block_start + block_length;
1554 }
1555 }
1556
1557
TEST(UncanonicalizeEquivalence)1558 TEST(UncanonicalizeEquivalence) {
1559 unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1560 unibrow::uchar chars[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1561 for (int i = 0; i < (1 << 16); i++) {
1562 int length = un_canonicalize.get(i, '\0', chars);
1563 for (int j = 0; j < length; j++) {
1564 unibrow::uchar chars2[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1565 int length2 = un_canonicalize.get(chars[j], '\0', chars2);
1566 CHECK_EQ(length, length2);
1567 for (int k = 0; k < length; k++)
1568 CHECK_EQ(static_cast<int>(chars[k]), static_cast<int>(chars2[k]));
1569 }
1570 }
1571 }
1572
1573
TestRangeCaseIndependence(CharacterRange input,Vector<CharacterRange> expected)1574 static void TestRangeCaseIndependence(CharacterRange input,
1575 Vector<CharacterRange> expected) {
1576 Zone zone(CcTest::i_isolate());
1577 int count = expected.length();
1578 ZoneList<CharacterRange>* list =
1579 new(&zone) ZoneList<CharacterRange>(count, &zone);
1580 input.AddCaseEquivalents(list, false, &zone);
1581 CHECK_EQ(count, list->length());
1582 for (int i = 0; i < list->length(); i++) {
1583 CHECK_EQ(expected[i].from(), list->at(i).from());
1584 CHECK_EQ(expected[i].to(), list->at(i).to());
1585 }
1586 }
1587
1588
TestSimpleRangeCaseIndependence(CharacterRange input,CharacterRange expected)1589 static void TestSimpleRangeCaseIndependence(CharacterRange input,
1590 CharacterRange expected) {
1591 EmbeddedVector<CharacterRange, 1> vector;
1592 vector[0] = expected;
1593 TestRangeCaseIndependence(input, vector);
1594 }
1595
1596
TEST(CharacterRangeCaseIndependence)1597 TEST(CharacterRangeCaseIndependence) {
1598 v8::internal::V8::Initialize(NULL);
1599 TestSimpleRangeCaseIndependence(CharacterRange::Singleton('a'),
1600 CharacterRange::Singleton('A'));
1601 TestSimpleRangeCaseIndependence(CharacterRange::Singleton('z'),
1602 CharacterRange::Singleton('Z'));
1603 TestSimpleRangeCaseIndependence(CharacterRange('a', 'z'),
1604 CharacterRange('A', 'Z'));
1605 TestSimpleRangeCaseIndependence(CharacterRange('c', 'f'),
1606 CharacterRange('C', 'F'));
1607 TestSimpleRangeCaseIndependence(CharacterRange('a', 'b'),
1608 CharacterRange('A', 'B'));
1609 TestSimpleRangeCaseIndependence(CharacterRange('y', 'z'),
1610 CharacterRange('Y', 'Z'));
1611 TestSimpleRangeCaseIndependence(CharacterRange('a' - 1, 'z' + 1),
1612 CharacterRange('A', 'Z'));
1613 TestSimpleRangeCaseIndependence(CharacterRange('A', 'Z'),
1614 CharacterRange('a', 'z'));
1615 TestSimpleRangeCaseIndependence(CharacterRange('C', 'F'),
1616 CharacterRange('c', 'f'));
1617 TestSimpleRangeCaseIndependence(CharacterRange('A' - 1, 'Z' + 1),
1618 CharacterRange('a', 'z'));
1619 // Here we need to add [l-z] to complete the case independence of
1620 // [A-Za-z] but we expect [a-z] to be added since we always add a
1621 // whole block at a time.
1622 TestSimpleRangeCaseIndependence(CharacterRange('A', 'k'),
1623 CharacterRange('a', 'z'));
1624 }
1625
1626
InClass(uc16 c,ZoneList<CharacterRange> * ranges)1627 static bool InClass(uc16 c, ZoneList<CharacterRange>* ranges) {
1628 if (ranges == NULL)
1629 return false;
1630 for (int i = 0; i < ranges->length(); i++) {
1631 CharacterRange range = ranges->at(i);
1632 if (range.from() <= c && c <= range.to())
1633 return true;
1634 }
1635 return false;
1636 }
1637
1638
TEST(CharClassDifference)1639 TEST(CharClassDifference) {
1640 v8::internal::V8::Initialize(NULL);
1641 Zone zone(CcTest::i_isolate());
1642 ZoneList<CharacterRange>* base =
1643 new(&zone) ZoneList<CharacterRange>(1, &zone);
1644 base->Add(CharacterRange::Everything(), &zone);
1645 Vector<const int> overlay = CharacterRange::GetWordBounds();
1646 ZoneList<CharacterRange>* included = NULL;
1647 ZoneList<CharacterRange>* excluded = NULL;
1648 CharacterRange::Split(base, overlay, &included, &excluded, &zone);
1649 for (int i = 0; i < (1 << 16); i++) {
1650 bool in_base = InClass(i, base);
1651 if (in_base) {
1652 bool in_overlay = false;
1653 for (int j = 0; !in_overlay && j < overlay.length(); j += 2) {
1654 if (overlay[j] <= i && i < overlay[j+1])
1655 in_overlay = true;
1656 }
1657 CHECK_EQ(in_overlay, InClass(i, included));
1658 CHECK_EQ(!in_overlay, InClass(i, excluded));
1659 } else {
1660 CHECK(!InClass(i, included));
1661 CHECK(!InClass(i, excluded));
1662 }
1663 }
1664 }
1665
1666
TEST(CanonicalizeCharacterSets)1667 TEST(CanonicalizeCharacterSets) {
1668 v8::internal::V8::Initialize(NULL);
1669 Zone zone(CcTest::i_isolate());
1670 ZoneList<CharacterRange>* list =
1671 new(&zone) ZoneList<CharacterRange>(4, &zone);
1672 CharacterSet set(list);
1673
1674 list->Add(CharacterRange(10, 20), &zone);
1675 list->Add(CharacterRange(30, 40), &zone);
1676 list->Add(CharacterRange(50, 60), &zone);
1677 set.Canonicalize();
1678 ASSERT_EQ(3, list->length());
1679 ASSERT_EQ(10, list->at(0).from());
1680 ASSERT_EQ(20, list->at(0).to());
1681 ASSERT_EQ(30, list->at(1).from());
1682 ASSERT_EQ(40, list->at(1).to());
1683 ASSERT_EQ(50, list->at(2).from());
1684 ASSERT_EQ(60, list->at(2).to());
1685
1686 list->Rewind(0);
1687 list->Add(CharacterRange(10, 20), &zone);
1688 list->Add(CharacterRange(50, 60), &zone);
1689 list->Add(CharacterRange(30, 40), &zone);
1690 set.Canonicalize();
1691 ASSERT_EQ(3, list->length());
1692 ASSERT_EQ(10, list->at(0).from());
1693 ASSERT_EQ(20, list->at(0).to());
1694 ASSERT_EQ(30, list->at(1).from());
1695 ASSERT_EQ(40, list->at(1).to());
1696 ASSERT_EQ(50, list->at(2).from());
1697 ASSERT_EQ(60, list->at(2).to());
1698
1699 list->Rewind(0);
1700 list->Add(CharacterRange(30, 40), &zone);
1701 list->Add(CharacterRange(10, 20), &zone);
1702 list->Add(CharacterRange(25, 25), &zone);
1703 list->Add(CharacterRange(100, 100), &zone);
1704 list->Add(CharacterRange(1, 1), &zone);
1705 set.Canonicalize();
1706 ASSERT_EQ(5, list->length());
1707 ASSERT_EQ(1, list->at(0).from());
1708 ASSERT_EQ(1, list->at(0).to());
1709 ASSERT_EQ(10, list->at(1).from());
1710 ASSERT_EQ(20, list->at(1).to());
1711 ASSERT_EQ(25, list->at(2).from());
1712 ASSERT_EQ(25, list->at(2).to());
1713 ASSERT_EQ(30, list->at(3).from());
1714 ASSERT_EQ(40, list->at(3).to());
1715 ASSERT_EQ(100, list->at(4).from());
1716 ASSERT_EQ(100, list->at(4).to());
1717
1718 list->Rewind(0);
1719 list->Add(CharacterRange(10, 19), &zone);
1720 list->Add(CharacterRange(21, 30), &zone);
1721 list->Add(CharacterRange(20, 20), &zone);
1722 set.Canonicalize();
1723 ASSERT_EQ(1, list->length());
1724 ASSERT_EQ(10, list->at(0).from());
1725 ASSERT_EQ(30, list->at(0).to());
1726 }
1727
1728
TEST(CharacterRangeMerge)1729 TEST(CharacterRangeMerge) {
1730 v8::internal::V8::Initialize(NULL);
1731 Zone zone(CcTest::i_isolate());
1732 ZoneList<CharacterRange> l1(4, &zone);
1733 ZoneList<CharacterRange> l2(4, &zone);
1734 // Create all combinations of intersections of ranges, both singletons and
1735 // longer.
1736
1737 int offset = 0;
1738
1739 // The five kinds of singleton intersections:
1740 // X
1741 // Y - outside before
1742 // Y - outside touching start
1743 // Y - overlap
1744 // Y - outside touching end
1745 // Y - outside after
1746
1747 for (int i = 0; i < 5; i++) {
1748 l1.Add(CharacterRange::Singleton(offset + 2), &zone);
1749 l2.Add(CharacterRange::Singleton(offset + i), &zone);
1750 offset += 6;
1751 }
1752
1753 // The seven kinds of singleton/non-singleton intersections:
1754 // XXX
1755 // Y - outside before
1756 // Y - outside touching start
1757 // Y - inside touching start
1758 // Y - entirely inside
1759 // Y - inside touching end
1760 // Y - outside touching end
1761 // Y - disjoint after
1762
1763 for (int i = 0; i < 7; i++) {
1764 l1.Add(CharacterRange::Range(offset + 2, offset + 4), &zone);
1765 l2.Add(CharacterRange::Singleton(offset + i), &zone);
1766 offset += 8;
1767 }
1768
1769 // The eleven kinds of non-singleton intersections:
1770 //
1771 // XXXXXXXX
1772 // YYYY - outside before.
1773 // YYYY - outside touching start.
1774 // YYYY - overlapping start
1775 // YYYY - inside touching start
1776 // YYYY - entirely inside
1777 // YYYY - inside touching end
1778 // YYYY - overlapping end
1779 // YYYY - outside touching end
1780 // YYYY - outside after
1781 // YYYYYYYY - identical
1782 // YYYYYYYYYYYY - containing entirely.
1783
1784 for (int i = 0; i < 9; i++) {
1785 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone); // Length 8.
1786 l2.Add(CharacterRange::Range(offset + 2 * i, offset + 2 * i + 3), &zone);
1787 offset += 22;
1788 }
1789 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1790 l2.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1791 offset += 22;
1792 l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1793 l2.Add(CharacterRange::Range(offset + 4, offset + 17), &zone);
1794 offset += 22;
1795
1796 // Different kinds of multi-range overlap:
1797 // XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXX
1798 // YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y
1799
1800 l1.Add(CharacterRange::Range(offset, offset + 21), &zone);
1801 l1.Add(CharacterRange::Range(offset + 31, offset + 52), &zone);
1802 for (int i = 0; i < 6; i++) {
1803 l2.Add(CharacterRange::Range(offset + 2, offset + 5), &zone);
1804 l2.Add(CharacterRange::Singleton(offset + 8), &zone);
1805 offset += 9;
1806 }
1807
1808 ASSERT(CharacterRange::IsCanonical(&l1));
1809 ASSERT(CharacterRange::IsCanonical(&l2));
1810
1811 ZoneList<CharacterRange> first_only(4, &zone);
1812 ZoneList<CharacterRange> second_only(4, &zone);
1813 ZoneList<CharacterRange> both(4, &zone);
1814 }
1815
1816
TEST(Graph)1817 TEST(Graph) {
1818 V8::Initialize(NULL);
1819 Execute("\\b\\w+\\b", false, true, true);
1820 }
1821