Line data Source code
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 : #include <cstdlib>
29 : #include <memory>
30 : #include <sstream>
31 :
32 : #include "include/v8.h"
33 : #include "src/api-inl.h"
34 : #include "src/assembler-arch.h"
35 : #include "src/ast/ast.h"
36 : #include "src/char-predicates-inl.h"
37 : #include "src/macro-assembler.h"
38 : #include "src/objects-inl.h"
39 : #include "src/ostreams.h"
40 : #include "src/regexp/interpreter-irregexp.h"
41 : #include "src/regexp/jsregexp.h"
42 : #include "src/regexp/regexp-macro-assembler-irregexp.h"
43 : #include "src/regexp/regexp-macro-assembler.h"
44 : #include "src/regexp/regexp-parser.h"
45 : #include "src/splay-tree-inl.h"
46 : #include "src/string-stream.h"
47 : #include "src/unicode-inl.h"
48 : #include "src/v8.h"
49 : #include "src/zone/zone-list-inl.h"
50 :
51 : #if V8_TARGET_ARCH_ARM
52 : #include "src/regexp/arm/regexp-macro-assembler-arm.h"
53 : #elif V8_TARGET_ARCH_ARM64
54 : #include "src/regexp/arm64/regexp-macro-assembler-arm64.h"
55 : #elif V8_TARGET_ARCH_S390
56 : #include "src/regexp/s390/regexp-macro-assembler-s390.h"
57 : #elif V8_TARGET_ARCH_PPC
58 : #include "src/regexp/ppc/regexp-macro-assembler-ppc.h"
59 : #elif V8_TARGET_ARCH_MIPS
60 : #include "src/regexp/mips/regexp-macro-assembler-mips.h"
61 : #elif V8_TARGET_ARCH_MIPS64
62 : #include "src/regexp/mips64/regexp-macro-assembler-mips64.h"
63 : #elif V8_TARGET_ARCH_X64
64 : #include "src/regexp/x64/regexp-macro-assembler-x64.h"
65 : #elif V8_TARGET_ARCH_IA32
66 : #include "src/regexp/ia32/regexp-macro-assembler-ia32.h"
67 : #else
68 : #error Unknown architecture.
69 : #endif
70 :
71 : #include "test/cctest/cctest.h"
72 :
73 : namespace v8 {
74 : namespace internal {
75 : namespace test_regexp {
76 :
77 5 : static bool CheckParse(const char* input) {
78 10 : v8::HandleScope scope(CcTest::isolate());
79 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
80 5 : FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
81 : RegExpCompileData result;
82 5 : return v8::internal::RegExpParser::ParseRegExp(
83 10 : CcTest::i_isolate(), &zone, &reader, JSRegExp::kNone, &result);
84 : }
85 :
86 :
87 765 : static void CheckParseEq(const char* input, const char* expected,
88 : bool unicode = false) {
89 1530 : v8::HandleScope scope(CcTest::isolate());
90 1530 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
91 765 : FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
92 : RegExpCompileData result;
93 : JSRegExp::Flags flags = JSRegExp::kNone;
94 765 : if (unicode) flags |= JSRegExp::kUnicode;
95 765 : CHECK(v8::internal::RegExpParser::ParseRegExp(CcTest::i_isolate(), &zone,
96 : &reader, flags, &result));
97 765 : CHECK_NOT_NULL(result.tree);
98 765 : CHECK(result.error.is_null());
99 1530 : std::ostringstream os;
100 765 : result.tree->Print(os, &zone);
101 1530 : if (strcmp(expected, os.str().c_str()) != 0) {
102 0 : printf("%s | %s\n", expected, os.str().c_str());
103 : }
104 1530 : CHECK_EQ(0, strcmp(expected, os.str().c_str()));
105 765 : }
106 :
107 :
108 225 : static bool CheckSimple(const char* input) {
109 450 : v8::HandleScope scope(CcTest::isolate());
110 450 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
111 225 : FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
112 : RegExpCompileData result;
113 225 : CHECK(v8::internal::RegExpParser::ParseRegExp(
114 : CcTest::i_isolate(), &zone, &reader, JSRegExp::kNone, &result));
115 225 : CHECK_NOT_NULL(result.tree);
116 225 : CHECK(result.error.is_null());
117 450 : return result.simple;
118 : }
119 :
120 : struct MinMaxPair {
121 : int min_match;
122 : int max_match;
123 : };
124 :
125 :
126 240 : static MinMaxPair CheckMinMaxMatch(const char* input) {
127 480 : v8::HandleScope scope(CcTest::isolate());
128 480 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
129 240 : FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
130 : RegExpCompileData result;
131 240 : CHECK(v8::internal::RegExpParser::ParseRegExp(
132 : CcTest::i_isolate(), &zone, &reader, JSRegExp::kNone, &result));
133 240 : CHECK_NOT_NULL(result.tree);
134 240 : CHECK(result.error.is_null());
135 240 : int min_match = result.tree->min_match();
136 240 : int max_match = result.tree->max_match();
137 : MinMaxPair pair = { min_match, max_match };
138 480 : return pair;
139 : }
140 :
141 :
142 : #define CHECK_PARSE_ERROR(input) CHECK(!CheckParse(input))
143 : #define CHECK_SIMPLE(input, simple) CHECK_EQ(simple, CheckSimple(input));
144 : #define CHECK_MIN_MAX(input, min, max) \
145 : { MinMaxPair min_max = CheckMinMaxMatch(input); \
146 : CHECK_EQ(min, min_max.min_match); \
147 : CHECK_EQ(max, min_max.max_match); \
148 : }
149 :
150 26644 : TEST(RegExpParser) {
151 5 : CHECK_PARSE_ERROR("?");
152 :
153 5 : CheckParseEq("abc", "'abc'");
154 5 : CheckParseEq("", "%");
155 5 : CheckParseEq("abc|def", "(| 'abc' 'def')");
156 5 : CheckParseEq("abc|def|ghi", "(| 'abc' 'def' 'ghi')");
157 5 : CheckParseEq("^xxx$", "(: @^i 'xxx' @$i)");
158 5 : CheckParseEq("ab\\b\\d\\bcd", "(: 'ab' @b [0-9] @b 'cd')");
159 5 : CheckParseEq("\\w|\\d", "(| [0-9 A-Z _ a-z] [0-9])");
160 5 : CheckParseEq("a*", "(# 0 - g 'a')");
161 5 : CheckParseEq("a*?", "(# 0 - n 'a')");
162 5 : CheckParseEq("abc+", "(: 'ab' (# 1 - g 'c'))");
163 5 : CheckParseEq("abc+?", "(: 'ab' (# 1 - n 'c'))");
164 5 : CheckParseEq("xyz?", "(: 'xy' (# 0 1 g 'z'))");
165 5 : CheckParseEq("xyz??", "(: 'xy' (# 0 1 n 'z'))");
166 5 : CheckParseEq("xyz{0,1}", "(: 'xy' (# 0 1 g 'z'))");
167 5 : CheckParseEq("xyz{0,1}?", "(: 'xy' (# 0 1 n 'z'))");
168 5 : CheckParseEq("xyz{93}", "(: 'xy' (# 93 93 g 'z'))");
169 5 : CheckParseEq("xyz{93}?", "(: 'xy' (# 93 93 n 'z'))");
170 5 : CheckParseEq("xyz{1,32}", "(: 'xy' (# 1 32 g 'z'))");
171 5 : CheckParseEq("xyz{1,32}?", "(: 'xy' (# 1 32 n 'z'))");
172 5 : CheckParseEq("xyz{1,}", "(: 'xy' (# 1 - g 'z'))");
173 5 : CheckParseEq("xyz{1,}?", "(: 'xy' (# 1 - n 'z'))");
174 5 : CheckParseEq("a\\fb\\nc\\rd\\te\\vf", "'a\\x0cb\\x0ac\\x0dd\\x09e\\x0bf'");
175 5 : CheckParseEq("a\\nb\\bc", "(: 'a\\x0ab' @b 'c')");
176 5 : CheckParseEq("(?:foo)", "(?: 'foo')");
177 5 : CheckParseEq("(?: foo )", "(?: ' foo ')");
178 5 : CheckParseEq("(foo|bar|baz)", "(^ (| 'foo' 'bar' 'baz'))");
179 5 : CheckParseEq("foo|(bar|baz)|quux", "(| 'foo' (^ (| 'bar' 'baz')) 'quux')");
180 5 : CheckParseEq("foo(?=bar)baz", "(: 'foo' (-> + 'bar') 'baz')");
181 5 : CheckParseEq("foo(?!bar)baz", "(: 'foo' (-> - 'bar') 'baz')");
182 5 : CheckParseEq("foo(?<=bar)baz", "(: 'foo' (<- + 'bar') 'baz')");
183 5 : CheckParseEq("foo(?<!bar)baz", "(: 'foo' (<- - 'bar') 'baz')");
184 5 : CheckParseEq("()", "(^ %)");
185 5 : CheckParseEq("(?=)", "(-> + %)");
186 5 : CheckParseEq("[]", "^[\\x00-\\u{10ffff}]"); // Doesn't compile on windows
187 5 : CheckParseEq("[^]", "[\\x00-\\u{10ffff}]"); // \uffff isn't in codepage 1252
188 5 : CheckParseEq("[x]", "[x]");
189 5 : CheckParseEq("[xyz]", "[x y z]");
190 5 : CheckParseEq("[a-zA-Z0-9]", "[a-z A-Z 0-9]");
191 5 : CheckParseEq("[-123]", "[- 1 2 3]");
192 5 : CheckParseEq("[^123]", "^[1 2 3]");
193 5 : CheckParseEq("]", "']'");
194 5 : CheckParseEq("}", "'}'");
195 5 : CheckParseEq("[a-b-c]", "[a-b - c]");
196 5 : CheckParseEq("[\\d]", "[0-9]");
197 5 : CheckParseEq("[x\\dz]", "[x 0-9 z]");
198 5 : CheckParseEq("[\\d-z]", "[0-9 - z]");
199 5 : CheckParseEq("[\\d-\\d]", "[0-9 0-9 -]");
200 5 : CheckParseEq("[z-\\d]", "[0-9 z -]");
201 : // Control character outside character class.
202 5 : CheckParseEq("\\cj\\cJ\\ci\\cI\\ck\\cK", "'\\x0a\\x0a\\x09\\x09\\x0b\\x0b'");
203 5 : CheckParseEq("\\c!", "'\\c!'");
204 5 : CheckParseEq("\\c_", "'\\c_'");
205 5 : CheckParseEq("\\c~", "'\\c~'");
206 5 : CheckParseEq("\\c1", "'\\c1'");
207 : // Control character inside character class.
208 5 : CheckParseEq("[\\c!]", "[\\ c !]");
209 5 : CheckParseEq("[\\c_]", "[\\x1f]");
210 5 : CheckParseEq("[\\c~]", "[\\ c ~]");
211 5 : CheckParseEq("[\\ca]", "[\\x01]");
212 5 : CheckParseEq("[\\cz]", "[\\x1a]");
213 5 : CheckParseEq("[\\cA]", "[\\x01]");
214 5 : CheckParseEq("[\\cZ]", "[\\x1a]");
215 5 : CheckParseEq("[\\c1]", "[\\x11]");
216 :
217 5 : CheckParseEq("[a\\]c]", "[a ] c]");
218 5 : CheckParseEq("\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ", "'[]{}()%^# '");
219 5 : CheckParseEq("[\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ]", "[[ ] { } ( ) % ^ # ]");
220 5 : CheckParseEq("\\0", "'\\x00'");
221 5 : CheckParseEq("\\8", "'8'");
222 5 : CheckParseEq("\\9", "'9'");
223 5 : CheckParseEq("\\11", "'\\x09'");
224 5 : CheckParseEq("\\11a", "'\\x09a'");
225 5 : CheckParseEq("\\011", "'\\x09'");
226 5 : CheckParseEq("\\00011", "'\\x0011'");
227 5 : CheckParseEq("\\118", "'\\x098'");
228 5 : CheckParseEq("\\111", "'I'");
229 5 : CheckParseEq("\\1111", "'I1'");
230 5 : CheckParseEq("(x)(x)(x)\\1", "(: (^ 'x') (^ 'x') (^ 'x') (<- 1))");
231 5 : CheckParseEq("(x)(x)(x)\\2", "(: (^ 'x') (^ 'x') (^ 'x') (<- 2))");
232 5 : CheckParseEq("(x)(x)(x)\\3", "(: (^ 'x') (^ 'x') (^ 'x') (<- 3))");
233 5 : CheckParseEq("(x)(x)(x)\\4", "(: (^ 'x') (^ 'x') (^ 'x') '\\x04')");
234 : CheckParseEq("(x)(x)(x)\\1*",
235 : "(: (^ 'x') (^ 'x') (^ 'x')"
236 5 : " (# 0 - g (<- 1)))");
237 : CheckParseEq("(x)(x)(x)\\2*",
238 : "(: (^ 'x') (^ 'x') (^ 'x')"
239 5 : " (# 0 - g (<- 2)))");
240 : CheckParseEq("(x)(x)(x)\\3*",
241 : "(: (^ 'x') (^ 'x') (^ 'x')"
242 5 : " (# 0 - g (<- 3)))");
243 : CheckParseEq("(x)(x)(x)\\4*",
244 : "(: (^ 'x') (^ 'x') (^ 'x')"
245 5 : " (# 0 - g '\\x04'))");
246 : CheckParseEq("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\10",
247 : "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
248 5 : " (^ 'x') (^ 'x') (^ 'x') (^ 'x') (<- 10))");
249 : CheckParseEq("(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\\11",
250 : "(: (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x') (^ 'x')"
251 5 : " (^ 'x') (^ 'x') (^ 'x') (^ 'x') '\\x09')");
252 5 : CheckParseEq("(a)\\1", "(: (^ 'a') (<- 1))");
253 5 : CheckParseEq("(a\\1)", "(^ 'a')");
254 5 : CheckParseEq("(\\1a)", "(^ 'a')");
255 5 : CheckParseEq("(\\2)(\\1)", "(: (^ (<- 2)) (^ (<- 1)))");
256 5 : CheckParseEq("(?=a)?a", "'a'");
257 5 : CheckParseEq("(?=a){0,10}a", "'a'");
258 5 : CheckParseEq("(?=a){1,10}a", "(: (-> + 'a') 'a')");
259 5 : CheckParseEq("(?=a){9,10}a", "(: (-> + 'a') 'a')");
260 5 : CheckParseEq("(?!a)?a", "'a'");
261 5 : CheckParseEq("\\1(a)", "(: (<- 1) (^ 'a'))");
262 5 : CheckParseEq("(?!(a))\\1", "(: (-> - (^ 'a')) (<- 1))");
263 : CheckParseEq("(?!\\1(a\\1)\\1)\\1",
264 5 : "(: (-> - (: (<- 1) (^ 'a') (<- 1))) (<- 1))");
265 : CheckParseEq("\\1\\2(a(?:\\1(b\\1\\2))\\2)\\1",
266 5 : "(: (<- 1) (<- 2) (^ (: 'a' (?: (^ 'b')) (<- 2))) (<- 1))");
267 : CheckParseEq("\\1\\2(a(?<=\\1(b\\1\\2))\\2)\\1",
268 5 : "(: (<- 1) (<- 2) (^ (: 'a' (<- + (^ 'b')) (<- 2))) (<- 1))");
269 5 : CheckParseEq("[\\0]", "[\\x00]");
270 5 : CheckParseEq("[\\11]", "[\\x09]");
271 5 : CheckParseEq("[\\11a]", "[\\x09 a]");
272 5 : CheckParseEq("[\\011]", "[\\x09]");
273 5 : CheckParseEq("[\\00011]", "[\\x00 1 1]");
274 5 : CheckParseEq("[\\118]", "[\\x09 8]");
275 5 : CheckParseEq("[\\111]", "[I]");
276 5 : CheckParseEq("[\\1111]", "[I 1]");
277 5 : CheckParseEq("\\x34", "'\x34'");
278 5 : CheckParseEq("\\x60", "'\x60'");
279 5 : CheckParseEq("\\x3z", "'x3z'");
280 5 : CheckParseEq("\\c", "'\\c'");
281 5 : CheckParseEq("\\u0034", "'\x34'");
282 5 : CheckParseEq("\\u003z", "'u003z'");
283 5 : CheckParseEq("foo[z]*", "(: 'foo' (# 0 - g [z]))");
284 5 : CheckParseEq("^^^$$$\\b\\b\\b\\b", "(: @^i @$i @b)");
285 5 : CheckParseEq("\\b\\b\\b\\b\\B\\B\\B\\B\\b\\b\\b\\b", "(: @b @B @b)");
286 5 : CheckParseEq("\\b\\B\\b", "(: @b @B @b)");
287 :
288 : // Unicode regexps
289 5 : CheckParseEq("\\u{12345}", "'\\ud808\\udf45'", true);
290 : CheckParseEq("\\u{12345}\\u{23456}", "(! '\\ud808\\udf45' '\\ud84d\\udc56')",
291 5 : true);
292 : CheckParseEq("\\u{12345}|\\u{23456}", "(| '\\ud808\\udf45' '\\ud84d\\udc56')",
293 5 : true);
294 5 : CheckParseEq("\\u{12345}{3}", "(# 3 3 g '\\ud808\\udf45')", true);
295 5 : CheckParseEq("\\u{12345}*", "(# 0 - g '\\ud808\\udf45')", true);
296 :
297 5 : CheckParseEq("\\ud808\\udf45*", "(# 0 - g '\\ud808\\udf45')", true);
298 : CheckParseEq("[\\ud808\\udf45-\\ud809\\udccc]", "[\\u{012345}-\\u{0124cc}]",
299 5 : true);
300 :
301 5 : CHECK_SIMPLE("", false);
302 5 : CHECK_SIMPLE("a", true);
303 5 : CHECK_SIMPLE("a|b", false);
304 5 : CHECK_SIMPLE("a\\n", false);
305 5 : CHECK_SIMPLE("^a", false);
306 5 : CHECK_SIMPLE("a$", false);
307 5 : CHECK_SIMPLE("a\\b!", false);
308 5 : CHECK_SIMPLE("a\\Bb", false);
309 5 : CHECK_SIMPLE("a*", false);
310 5 : CHECK_SIMPLE("a*?", false);
311 5 : CHECK_SIMPLE("a?", false);
312 5 : CHECK_SIMPLE("a??", false);
313 5 : CHECK_SIMPLE("a{0,1}?", false);
314 5 : CHECK_SIMPLE("a{1,1}?", false);
315 5 : CHECK_SIMPLE("a{1,2}?", false);
316 5 : CHECK_SIMPLE("a+?", false);
317 5 : CHECK_SIMPLE("(a)", false);
318 5 : CHECK_SIMPLE("(a)\\1", false);
319 5 : CHECK_SIMPLE("(\\1a)", false);
320 5 : CHECK_SIMPLE("\\1(a)", false);
321 5 : CHECK_SIMPLE("a\\s", false);
322 5 : CHECK_SIMPLE("a\\S", false);
323 5 : CHECK_SIMPLE("a\\d", false);
324 5 : CHECK_SIMPLE("a\\D", false);
325 5 : CHECK_SIMPLE("a\\w", false);
326 5 : CHECK_SIMPLE("a\\W", false);
327 5 : CHECK_SIMPLE("a.", false);
328 5 : CHECK_SIMPLE("a\\q", false);
329 5 : CHECK_SIMPLE("a[a]", false);
330 5 : CHECK_SIMPLE("a[^a]", false);
331 5 : CHECK_SIMPLE("a[a-z]", false);
332 5 : CHECK_SIMPLE("a[\\q]", false);
333 5 : CHECK_SIMPLE("a(?:b)", false);
334 5 : CHECK_SIMPLE("a(?=b)", false);
335 5 : CHECK_SIMPLE("a(?!b)", false);
336 5 : CHECK_SIMPLE("\\x60", false);
337 5 : CHECK_SIMPLE("\\u0060", false);
338 5 : CHECK_SIMPLE("\\cA", false);
339 5 : CHECK_SIMPLE("\\q", false);
340 5 : CHECK_SIMPLE("\\1112", false);
341 5 : CHECK_SIMPLE("\\0", false);
342 5 : CHECK_SIMPLE("(a)\\1", false);
343 5 : CHECK_SIMPLE("(?=a)?a", false);
344 5 : CHECK_SIMPLE("(?!a)?a\\1", false);
345 5 : CHECK_SIMPLE("(?:(?=a))a\\1", false);
346 :
347 5 : CheckParseEq("a{}", "'a{}'");
348 5 : CheckParseEq("a{,}", "'a{,}'");
349 5 : CheckParseEq("a{", "'a{'");
350 5 : CheckParseEq("a{z}", "'a{z}'");
351 5 : CheckParseEq("a{1z}", "'a{1z}'");
352 5 : CheckParseEq("a{12z}", "'a{12z}'");
353 5 : CheckParseEq("a{12,", "'a{12,'");
354 5 : CheckParseEq("a{12,3b", "'a{12,3b'");
355 5 : CheckParseEq("{}", "'{}'");
356 5 : CheckParseEq("{,}", "'{,}'");
357 5 : CheckParseEq("{", "'{'");
358 5 : CheckParseEq("{z}", "'{z}'");
359 5 : CheckParseEq("{1z}", "'{1z}'");
360 5 : CheckParseEq("{12z}", "'{12z}'");
361 5 : CheckParseEq("{12,", "'{12,'");
362 5 : CheckParseEq("{12,3b", "'{12,3b'");
363 :
364 5 : CHECK_MIN_MAX("a", 1, 1);
365 5 : CHECK_MIN_MAX("abc", 3, 3);
366 5 : CHECK_MIN_MAX("a[bc]d", 3, 3);
367 5 : CHECK_MIN_MAX("a|bc", 1, 2);
368 5 : CHECK_MIN_MAX("ab|c", 1, 2);
369 5 : CHECK_MIN_MAX("a||bc", 0, 2);
370 5 : CHECK_MIN_MAX("|", 0, 0);
371 5 : CHECK_MIN_MAX("(?:ab)", 2, 2);
372 5 : CHECK_MIN_MAX("(?:ab|cde)", 2, 3);
373 5 : CHECK_MIN_MAX("(?:ab)|cde", 2, 3);
374 5 : CHECK_MIN_MAX("(ab)", 2, 2);
375 5 : CHECK_MIN_MAX("(ab|cde)", 2, 3);
376 5 : CHECK_MIN_MAX("(ab)\\1", 2, RegExpTree::kInfinity);
377 5 : CHECK_MIN_MAX("(ab|cde)\\1", 2, RegExpTree::kInfinity);
378 5 : CHECK_MIN_MAX("(?:ab)?", 0, 2);
379 5 : CHECK_MIN_MAX("(?:ab)*", 0, RegExpTree::kInfinity);
380 5 : CHECK_MIN_MAX("(?:ab)+", 2, RegExpTree::kInfinity);
381 5 : CHECK_MIN_MAX("a?", 0, 1);
382 5 : CHECK_MIN_MAX("a*", 0, RegExpTree::kInfinity);
383 5 : CHECK_MIN_MAX("a+", 1, RegExpTree::kInfinity);
384 5 : CHECK_MIN_MAX("a??", 0, 1);
385 5 : CHECK_MIN_MAX("a*?", 0, RegExpTree::kInfinity);
386 5 : CHECK_MIN_MAX("a+?", 1, RegExpTree::kInfinity);
387 5 : CHECK_MIN_MAX("(?:a?)?", 0, 1);
388 5 : CHECK_MIN_MAX("(?:a*)?", 0, RegExpTree::kInfinity);
389 5 : CHECK_MIN_MAX("(?:a+)?", 0, RegExpTree::kInfinity);
390 5 : CHECK_MIN_MAX("(?:a?)+", 0, RegExpTree::kInfinity);
391 5 : CHECK_MIN_MAX("(?:a*)+", 0, RegExpTree::kInfinity);
392 5 : CHECK_MIN_MAX("(?:a+)+", 1, RegExpTree::kInfinity);
393 5 : CHECK_MIN_MAX("(?:a?)*", 0, RegExpTree::kInfinity);
394 5 : CHECK_MIN_MAX("(?:a*)*", 0, RegExpTree::kInfinity);
395 5 : CHECK_MIN_MAX("(?:a+)*", 0, RegExpTree::kInfinity);
396 5 : CHECK_MIN_MAX("a{0}", 0, 0);
397 5 : CHECK_MIN_MAX("(?:a+){0}", 0, 0);
398 5 : CHECK_MIN_MAX("(?:a+){0,0}", 0, 0);
399 5 : CHECK_MIN_MAX("a*b", 1, RegExpTree::kInfinity);
400 5 : CHECK_MIN_MAX("a+b", 2, RegExpTree::kInfinity);
401 5 : CHECK_MIN_MAX("a*b|c", 1, RegExpTree::kInfinity);
402 5 : CHECK_MIN_MAX("a+b|c", 1, RegExpTree::kInfinity);
403 5 : CHECK_MIN_MAX("(?:a{5,1000000}){3,1000000}", 15, RegExpTree::kInfinity);
404 5 : CHECK_MIN_MAX("(?:ab){4,7}", 8, 14);
405 5 : CHECK_MIN_MAX("a\\bc", 2, 2);
406 5 : CHECK_MIN_MAX("a\\Bc", 2, 2);
407 5 : CHECK_MIN_MAX("a\\sc", 3, 3);
408 5 : CHECK_MIN_MAX("a\\Sc", 3, 3);
409 5 : CHECK_MIN_MAX("a(?=b)c", 2, 2);
410 5 : CHECK_MIN_MAX("a(?=bbb|bb)c", 2, 2);
411 5 : CHECK_MIN_MAX("a(?!bbb|bb)c", 2, 2);
412 :
413 : CheckParseEq("(?<a>x)(?<b>x)(?<c>x)\\k<a>",
414 5 : "(: (^ 'x') (^ 'x') (^ 'x') (<- 1))", true);
415 : CheckParseEq("(?<a>x)(?<b>x)(?<c>x)\\k<b>",
416 5 : "(: (^ 'x') (^ 'x') (^ 'x') (<- 2))", true);
417 : CheckParseEq("(?<a>x)(?<b>x)(?<c>x)\\k<c>",
418 5 : "(: (^ 'x') (^ 'x') (^ 'x') (<- 3))", true);
419 5 : CheckParseEq("(?<a>a)\\k<a>", "(: (^ 'a') (<- 1))", true);
420 5 : CheckParseEq("(?<a>a\\k<a>)", "(^ 'a')", true);
421 5 : CheckParseEq("(?<a>\\k<a>a)", "(^ 'a')", true);
422 5 : CheckParseEq("(?<a>\\k<b>)(?<b>\\k<a>)", "(: (^ (<- 2)) (^ (<- 1)))", true);
423 5 : CheckParseEq("\\k<a>(?<a>a)", "(: (<- 1) (^ 'a'))", true);
424 :
425 5 : CheckParseEq("(?<\\u{03C0}>a)", "(^ 'a')", true);
426 5 : CheckParseEq("(?<\\u03C0>a)", "(^ 'a')", true);
427 5 : }
428 :
429 26644 : TEST(ParserRegression) {
430 5 : CheckParseEq("[A-Z$-][x]", "(! [A-Z $ -] [x])");
431 5 : CheckParseEq("a{3,4*}", "(: 'a{3,' (# 0 - g '4') '}')");
432 5 : CheckParseEq("{", "'{'");
433 5 : CheckParseEq("a|", "(| 'a' %)");
434 5 : }
435 :
436 105 : static void ExpectError(const char* input, const char* expected,
437 : bool unicode = false) {
438 : Isolate* isolate = CcTest::i_isolate();
439 :
440 210 : v8::HandleScope scope(CcTest::isolate());
441 210 : Zone zone(isolate->allocator(), ZONE_NAME);
442 105 : FlatStringReader reader(isolate, CStrVector(input));
443 : RegExpCompileData result;
444 : JSRegExp::Flags flags = JSRegExp::kNone;
445 105 : if (unicode) flags |= JSRegExp::kUnicode;
446 105 : CHECK(!v8::internal::RegExpParser::ParseRegExp(isolate, &zone, &reader, flags,
447 : &result));
448 105 : CHECK_NULL(result.tree);
449 105 : CHECK(!result.error.is_null());
450 105 : std::unique_ptr<char[]> str = result.error->ToCString(ALLOW_NULLS);
451 105 : CHECK_EQ(0, strcmp(expected, str.get()));
452 105 : }
453 :
454 :
455 26644 : TEST(Errors) {
456 : const char* kEndBackslash = "\\ at end of pattern";
457 5 : ExpectError("\\", kEndBackslash);
458 : const char* kUnterminatedGroup = "Unterminated group";
459 5 : ExpectError("(foo", kUnterminatedGroup);
460 : const char* kInvalidGroup = "Invalid group";
461 5 : ExpectError("(?", kInvalidGroup);
462 : const char* kUnterminatedCharacterClass = "Unterminated character class";
463 5 : ExpectError("[", kUnterminatedCharacterClass);
464 5 : ExpectError("[a-", kUnterminatedCharacterClass);
465 : const char* kNothingToRepeat = "Nothing to repeat";
466 5 : ExpectError("*", kNothingToRepeat);
467 5 : ExpectError("?", kNothingToRepeat);
468 5 : ExpectError("+", kNothingToRepeat);
469 5 : ExpectError("{1}", kNothingToRepeat);
470 5 : ExpectError("{1,2}", kNothingToRepeat);
471 5 : ExpectError("{1,}", kNothingToRepeat);
472 :
473 : // Check that we don't allow more than kMaxCapture captures
474 : const int kMaxCaptures = 1 << 16; // Must match RegExpParser::kMaxCaptures.
475 : const char* kTooManyCaptures = "Too many captures";
476 10 : std::ostringstream os;
477 655375 : for (int i = 0; i <= kMaxCaptures; i++) {
478 327685 : os << "()";
479 : }
480 10 : ExpectError(os.str().c_str(), kTooManyCaptures);
481 :
482 : const char* kInvalidCaptureName = "Invalid capture group name";
483 5 : ExpectError("(?<>.)", kInvalidCaptureName, true);
484 5 : ExpectError("(?<1>.)", kInvalidCaptureName, true);
485 5 : ExpectError("(?<_%>.)", kInvalidCaptureName, true);
486 5 : ExpectError("\\k<a", kInvalidCaptureName, true);
487 : const char* kDuplicateCaptureName = "Duplicate capture group name";
488 5 : ExpectError("(?<a>.)(?<a>.)", kDuplicateCaptureName, true);
489 : const char* kInvalidUnicodeEscape = "Invalid Unicode escape sequence";
490 5 : ExpectError("(?<\\u{FISK}", kInvalidUnicodeEscape, true);
491 : const char* kInvalidCaptureReferenced = "Invalid named capture referenced";
492 5 : ExpectError("\\k<a>", kInvalidCaptureReferenced, true);
493 5 : ExpectError("(?<b>)\\k<a>", kInvalidCaptureReferenced, true);
494 : const char* kInvalidNamedReference = "Invalid named reference";
495 5 : ExpectError("\\ka", kInvalidNamedReference, true);
496 5 : }
497 :
498 :
499 327680 : static bool IsDigit(uc16 c) {
500 655360 : return ('0' <= c && c <= '9');
501 : }
502 :
503 :
504 327680 : static bool NotDigit(uc16 c) {
505 327680 : return !IsDigit(c);
506 : }
507 :
508 :
509 327680 : static bool IsWhiteSpaceOrLineTerminator(uc16 c) {
510 : // According to ECMA 5.1, 15.10.2.12 the CharacterClassEscape \s includes
511 : // WhiteSpace (7.2) and LineTerminator (7.3) values.
512 983040 : return v8::internal::IsWhiteSpaceOrLineTerminator(c);
513 : }
514 :
515 :
516 327680 : static bool NotWhiteSpaceNorLineTermiantor(uc16 c) {
517 327680 : return !IsWhiteSpaceOrLineTerminator(c);
518 : }
519 :
520 :
521 327680 : static bool NotWord(uc16 c) {
522 327680 : return !IsRegExpWord(c);
523 : }
524 :
525 :
526 35 : static void TestCharacterClassEscapes(uc16 c, bool (pred)(uc16 c)) {
527 70 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
528 : ZoneList<CharacterRange>* ranges =
529 : new(&zone) ZoneList<CharacterRange>(2, &zone);
530 35 : CharacterRange::AddClassEscape(c, ranges, &zone);
531 4587555 : for (uc32 i = 0; i < (1 << 16); i++) {
532 : bool in_class = false;
533 37773055 : for (int j = 0; !in_class && j < ranges->length(); j++) {
534 : CharacterRange& range = ranges->at(j);
535 11498745 : in_class = (range.from() <= i && i <= range.to());
536 : }
537 2293760 : CHECK_EQ(pred(i), in_class);
538 : }
539 35 : }
540 :
541 :
542 26644 : TEST(CharacterClassEscapes) {
543 5 : TestCharacterClassEscapes('.', IsRegExpNewline);
544 5 : TestCharacterClassEscapes('d', IsDigit);
545 5 : TestCharacterClassEscapes('D', NotDigit);
546 5 : TestCharacterClassEscapes('s', IsWhiteSpaceOrLineTerminator);
547 5 : TestCharacterClassEscapes('S', NotWhiteSpaceNorLineTermiantor);
548 5 : TestCharacterClassEscapes('w', IsRegExpWord);
549 5 : TestCharacterClassEscapes('W', NotWord);
550 5 : }
551 :
552 :
553 5 : static RegExpNode* Compile(const char* input, bool multiline, bool unicode,
554 : bool is_one_byte, Zone* zone) {
555 : Isolate* isolate = CcTest::i_isolate();
556 5 : FlatStringReader reader(isolate, CStrVector(input));
557 : RegExpCompileData compile_data;
558 : JSRegExp::Flags flags = JSRegExp::kNone;
559 5 : if (multiline) flags = JSRegExp::kMultiline;
560 5 : if (unicode) flags = JSRegExp::kUnicode;
561 5 : if (!v8::internal::RegExpParser::ParseRegExp(CcTest::i_isolate(), zone,
562 : &reader, flags, &compile_data))
563 : return nullptr;
564 : Handle<String> pattern = isolate->factory()
565 10 : ->NewStringFromUtf8(CStrVector(input))
566 5 : .ToHandleChecked();
567 : Handle<String> sample_subject =
568 10 : isolate->factory()->NewStringFromUtf8(CStrVector("")).ToHandleChecked();
569 : RegExpEngine::Compile(isolate, zone, &compile_data, flags, pattern,
570 5 : sample_subject, is_one_byte);
571 5 : return compile_data.node;
572 : }
573 :
574 :
575 5 : static void Execute(const char* input, bool multiline, bool unicode,
576 : bool is_one_byte, bool dot_output = false) {
577 10 : v8::HandleScope scope(CcTest::isolate());
578 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
579 5 : RegExpNode* node = Compile(input, multiline, unicode, is_one_byte, &zone);
580 : USE(node);
581 : #ifdef DEBUG
582 : if (dot_output) {
583 : RegExpEngine::DotPrint(input, node, false);
584 : }
585 : #endif // DEBUG
586 5 : }
587 :
588 :
589 : class TestConfig {
590 : public:
591 : typedef int Key;
592 : typedef int Value;
593 : static const int kNoKey;
594 : static int NoValue() { return 0; }
595 : static inline int Compare(int a, int b) {
596 4448805 : if (a < b)
597 : return -1;
598 2208405 : else if (a > b)
599 : return 1;
600 : else
601 : return 0;
602 : }
603 : };
604 :
605 :
606 : const int TestConfig::kNoKey = 0;
607 :
608 :
609 : static unsigned PseudoRandom(int i, int j) {
610 5940 : return ~(~((i * 781) ^ (j * 329)));
611 : }
612 :
613 :
614 26644 : TEST(SplayTreeSimple) {
615 : static const unsigned kLimit = 1000;
616 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
617 : ZoneSplayTree<TestConfig> tree(&zone);
618 : bool seen[kLimit];
619 5005 : for (unsigned i = 0; i < kLimit; i++) seen[i] = false;
620 : #define CHECK_MAPS_EQUAL() do { \
621 : for (unsigned k = 0; k < kLimit; k++) \
622 : CHECK_EQ(seen[k], tree.Find(k, &loc)); \
623 : } while (false)
624 505 : for (int i = 0; i < 50; i++) {
625 1880 : for (int j = 0; j < 50; j++) {
626 1065 : int next = PseudoRandom(i, j) % kLimit;
627 1065 : if (seen[next]) {
628 : // We've already seen this one. Check the value and remove
629 : // it.
630 : ZoneSplayTree<TestConfig>::Locator loc;
631 85 : CHECK(tree.Find(next, &loc));
632 85 : CHECK_EQ(next, loc.key());
633 85 : CHECK_EQ(3 * next, loc.value());
634 85 : tree.Remove(next);
635 85 : seen[next] = false;
636 170085 : CHECK_MAPS_EQUAL();
637 : } else {
638 : // Check that it wasn't there already and then add it.
639 : ZoneSplayTree<TestConfig>::Locator loc;
640 980 : CHECK(!tree.Find(next, &loc));
641 980 : CHECK(tree.Insert(next, &loc));
642 980 : CHECK_EQ(next, loc.key());
643 980 : loc.set_value(3 * next);
644 980 : seen[next] = true;
645 1960980 : CHECK_MAPS_EQUAL();
646 : }
647 1065 : int val = PseudoRandom(j, i) % kLimit;
648 1065 : if (seen[val]) {
649 : ZoneSplayTree<TestConfig>::Locator loc;
650 135 : CHECK(tree.FindGreatestLessThan(val, &loc));
651 270 : CHECK_EQ(loc.key(), val);
652 : break;
653 : }
654 1860 : val = PseudoRandom(i + j, i - j) % kLimit;
655 930 : if (seen[val]) {
656 : ZoneSplayTree<TestConfig>::Locator loc;
657 115 : CHECK(tree.FindLeastGreaterThan(val, &loc));
658 230 : CHECK_EQ(loc.key(), val);
659 : break;
660 : }
661 : }
662 : }
663 5 : }
664 :
665 :
666 26644 : TEST(DispatchTableConstruction) {
667 : // Initialize test data.
668 : static const int kLimit = 1000;
669 : static const int kRangeCount = 8;
670 : static const int kRangeSize = 16;
671 : uc16 ranges[kRangeCount][2 * kRangeSize];
672 85 : for (int i = 0; i < kRangeCount; i++) {
673 40 : Vector<uc16> range(ranges[i], 2 * kRangeSize);
674 2600 : for (int j = 0; j < 2 * kRangeSize; j++) {
675 3840 : range[j] = PseudoRandom(i + 25, j + 87) % kLimit;
676 : }
677 : range.Sort();
678 2520 : for (int j = 1; j < 2 * kRangeSize; j++) {
679 3720 : CHECK(range[j-1] <= range[j]);
680 : }
681 : }
682 : // Enter test data into dispatch table.
683 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
684 : DispatchTable table(&zone);
685 85 : for (int i = 0; i < kRangeCount; i++) {
686 40 : uc16* range = ranges[i];
687 1320 : for (int j = 0; j < 2 * kRangeSize; j += 2)
688 640 : table.AddRange(CharacterRange::Range(range[j], range[j + 1]), i, &zone);
689 : }
690 : // Check that the table looks as we would expect
691 10005 : for (int p = 0; p < kLimit; p++) {
692 5000 : OutSet* outs = table.Get(p);
693 85000 : for (int j = 0; j < kRangeCount; j++) {
694 40000 : uc16* range = ranges[j];
695 : bool is_on = false;
696 997200 : for (int k = 0; !is_on && (k < 2 * kRangeSize); k += 2)
697 478600 : is_on = (range[k] <= p && p <= range[k + 1]);
698 40000 : CHECK_EQ(is_on, outs->Get(j));
699 : }
700 : }
701 5 : }
702 :
703 :
704 : // Test of debug-only syntax.
705 : #ifdef DEBUG
706 :
707 : TEST(ParsePossessiveRepetition) {
708 : bool old_flag_value = FLAG_regexp_possessive_quantifier;
709 :
710 : // Enable possessive quantifier syntax.
711 : FLAG_regexp_possessive_quantifier = true;
712 :
713 : CheckParseEq("a*+", "(# 0 - p 'a')");
714 : CheckParseEq("a++", "(# 1 - p 'a')");
715 : CheckParseEq("a?+", "(# 0 1 p 'a')");
716 : CheckParseEq("a{10,20}+", "(# 10 20 p 'a')");
717 : CheckParseEq("za{10,20}+b", "(: 'z' (# 10 20 p 'a') 'b')");
718 :
719 : // Disable possessive quantifier syntax.
720 : FLAG_regexp_possessive_quantifier = false;
721 :
722 : CHECK_PARSE_ERROR("a*+");
723 : CHECK_PARSE_ERROR("a++");
724 : CHECK_PARSE_ERROR("a?+");
725 : CHECK_PARSE_ERROR("a{10,20}+");
726 : CHECK_PARSE_ERROR("a{10,20}+b");
727 :
728 : FLAG_regexp_possessive_quantifier = old_flag_value;
729 : }
730 :
731 : #endif
732 :
733 : // Tests of interpreter.
734 :
735 : #if V8_TARGET_ARCH_IA32
736 : typedef RegExpMacroAssemblerIA32 ArchRegExpMacroAssembler;
737 : #elif V8_TARGET_ARCH_X64
738 : typedef RegExpMacroAssemblerX64 ArchRegExpMacroAssembler;
739 : #elif V8_TARGET_ARCH_ARM
740 : typedef RegExpMacroAssemblerARM ArchRegExpMacroAssembler;
741 : #elif V8_TARGET_ARCH_ARM64
742 : typedef RegExpMacroAssemblerARM64 ArchRegExpMacroAssembler;
743 : #elif V8_TARGET_ARCH_S390
744 : typedef RegExpMacroAssemblerS390 ArchRegExpMacroAssembler;
745 : #elif V8_TARGET_ARCH_PPC
746 : typedef RegExpMacroAssemblerPPC ArchRegExpMacroAssembler;
747 : #elif V8_TARGET_ARCH_MIPS
748 : typedef RegExpMacroAssemblerMIPS ArchRegExpMacroAssembler;
749 : #elif V8_TARGET_ARCH_MIPS64
750 : typedef RegExpMacroAssemblerMIPS ArchRegExpMacroAssembler;
751 : #elif V8_TARGET_ARCH_X87
752 : typedef RegExpMacroAssemblerX87 ArchRegExpMacroAssembler;
753 : #endif
754 :
755 : class ContextInitializer {
756 : public:
757 44 : ContextInitializer()
758 : : scope_(CcTest::isolate()),
759 88 : env_(v8::Context::New(CcTest::isolate())) {
760 44 : env_->Enter();
761 44 : }
762 44 : ~ContextInitializer() {
763 44 : env_->Exit();
764 : }
765 : private:
766 : v8::HandleScope scope_;
767 : v8::Local<v8::Context> env_;
768 : };
769 :
770 : static ArchRegExpMacroAssembler::Result Execute(Code code, String input,
771 : int start_offset,
772 : Address input_start,
773 : Address input_end,
774 : int* captures) {
775 : return static_cast<NativeRegExpMacroAssembler::Result>(
776 56 : NativeRegExpMacroAssembler::Execute(code, input, start_offset,
777 : reinterpret_cast<byte*>(input_start),
778 : reinterpret_cast<byte*>(input_end),
779 56 : captures, 0, CcTest::i_isolate()));
780 : }
781 :
782 26643 : TEST(MacroAssemblerNativeSuccess) {
783 4 : v8::V8::Initialize();
784 4 : ContextInitializer initializer;
785 : Isolate* isolate = CcTest::i_isolate();
786 : Factory* factory = isolate->factory();
787 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
788 :
789 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
790 8 : 4);
791 :
792 4 : m.Succeed();
793 :
794 4 : Handle<String> source = factory->NewStringFromStaticChars("");
795 4 : Handle<Object> code_object = m.GetCode(source);
796 : Handle<Code> code = Handle<Code>::cast(code_object);
797 :
798 4 : int captures[4] = {42, 37, 87, 117};
799 4 : Handle<String> input = factory->NewStringFromStaticChars("foofoo");
800 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
801 : Address start_adr = seq_input->GetCharsAddress();
802 :
803 : NativeRegExpMacroAssembler::Result result =
804 4 : Execute(*code,
805 : *input,
806 : 0,
807 : start_adr,
808 : start_adr + seq_input->length(),
809 : captures);
810 :
811 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
812 4 : CHECK_EQ(-1, captures[0]);
813 4 : CHECK_EQ(-1, captures[1]);
814 4 : CHECK_EQ(-1, captures[2]);
815 4 : CHECK_EQ(-1, captures[3]);
816 4 : }
817 :
818 :
819 26643 : TEST(MacroAssemblerNativeSimple) {
820 4 : v8::V8::Initialize();
821 4 : ContextInitializer initializer;
822 : Isolate* isolate = CcTest::i_isolate();
823 : Factory* factory = isolate->factory();
824 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
825 :
826 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
827 8 : 4);
828 :
829 4 : Label fail, backtrack;
830 4 : m.PushBacktrack(&fail);
831 4 : m.CheckNotAtStart(0, nullptr);
832 4 : m.LoadCurrentCharacter(2, nullptr);
833 4 : m.CheckNotCharacter('o', nullptr);
834 4 : m.LoadCurrentCharacter(1, nullptr, false);
835 4 : m.CheckNotCharacter('o', nullptr);
836 4 : m.LoadCurrentCharacter(0, nullptr, false);
837 4 : m.CheckNotCharacter('f', nullptr);
838 4 : m.WriteCurrentPositionToRegister(0, 0);
839 4 : m.WriteCurrentPositionToRegister(1, 3);
840 4 : m.AdvanceCurrentPosition(3);
841 4 : m.PushBacktrack(&backtrack);
842 4 : m.Succeed();
843 4 : m.Bind(&backtrack);
844 4 : m.Backtrack();
845 4 : m.Bind(&fail);
846 4 : m.Fail();
847 :
848 4 : Handle<String> source = factory->NewStringFromStaticChars("^foo");
849 4 : Handle<Object> code_object = m.GetCode(source);
850 : Handle<Code> code = Handle<Code>::cast(code_object);
851 :
852 4 : int captures[4] = {42, 37, 87, 117};
853 4 : Handle<String> input = factory->NewStringFromStaticChars("foofoo");
854 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
855 : Address start_adr = seq_input->GetCharsAddress();
856 :
857 : NativeRegExpMacroAssembler::Result result =
858 4 : Execute(*code,
859 : *input,
860 : 0,
861 : start_adr,
862 : start_adr + input->length(),
863 : captures);
864 :
865 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
866 4 : CHECK_EQ(0, captures[0]);
867 4 : CHECK_EQ(3, captures[1]);
868 4 : CHECK_EQ(-1, captures[2]);
869 4 : CHECK_EQ(-1, captures[3]);
870 :
871 4 : input = factory->NewStringFromStaticChars("barbarbar");
872 : seq_input = Handle<SeqOneByteString>::cast(input);
873 : start_adr = seq_input->GetCharsAddress();
874 :
875 4 : result = Execute(*code,
876 : *input,
877 : 0,
878 : start_adr,
879 : start_adr + input->length(),
880 : captures);
881 :
882 4 : CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
883 4 : }
884 :
885 :
886 26643 : TEST(MacroAssemblerNativeSimpleUC16) {
887 4 : v8::V8::Initialize();
888 4 : ContextInitializer initializer;
889 : Isolate* isolate = CcTest::i_isolate();
890 : Factory* factory = isolate->factory();
891 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
892 :
893 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::UC16,
894 8 : 4);
895 :
896 4 : Label fail, backtrack;
897 4 : m.PushBacktrack(&fail);
898 4 : m.CheckNotAtStart(0, nullptr);
899 4 : m.LoadCurrentCharacter(2, nullptr);
900 4 : m.CheckNotCharacter('o', nullptr);
901 4 : m.LoadCurrentCharacter(1, nullptr, false);
902 4 : m.CheckNotCharacter('o', nullptr);
903 4 : m.LoadCurrentCharacter(0, nullptr, false);
904 4 : m.CheckNotCharacter('f', nullptr);
905 4 : m.WriteCurrentPositionToRegister(0, 0);
906 4 : m.WriteCurrentPositionToRegister(1, 3);
907 4 : m.AdvanceCurrentPosition(3);
908 4 : m.PushBacktrack(&backtrack);
909 4 : m.Succeed();
910 4 : m.Bind(&backtrack);
911 4 : m.Backtrack();
912 4 : m.Bind(&fail);
913 4 : m.Fail();
914 :
915 4 : Handle<String> source = factory->NewStringFromStaticChars("^foo");
916 4 : Handle<Object> code_object = m.GetCode(source);
917 : Handle<Code> code = Handle<Code>::cast(code_object);
918 :
919 4 : int captures[4] = {42, 37, 87, 117};
920 : const uc16 input_data[6] = {'f', 'o', 'o', 'f', 'o',
921 4 : static_cast<uc16>(0x2603)};
922 8 : Handle<String> input = factory->NewStringFromTwoByte(
923 4 : Vector<const uc16>(input_data, 6)).ToHandleChecked();
924 : Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
925 : Address start_adr = seq_input->GetCharsAddress();
926 :
927 : NativeRegExpMacroAssembler::Result result =
928 4 : Execute(*code,
929 : *input,
930 : 0,
931 : start_adr,
932 : start_adr + input->length(),
933 : captures);
934 :
935 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
936 4 : CHECK_EQ(0, captures[0]);
937 4 : CHECK_EQ(3, captures[1]);
938 4 : CHECK_EQ(-1, captures[2]);
939 4 : CHECK_EQ(-1, captures[3]);
940 :
941 : const uc16 input_data2[9] = {'b', 'a', 'r', 'b', 'a', 'r', 'b', 'a',
942 4 : static_cast<uc16>(0x2603)};
943 8 : input = factory->NewStringFromTwoByte(
944 4 : Vector<const uc16>(input_data2, 9)).ToHandleChecked();
945 : seq_input = Handle<SeqTwoByteString>::cast(input);
946 : start_adr = seq_input->GetCharsAddress();
947 :
948 4 : result = Execute(*code,
949 : *input,
950 : 0,
951 : start_adr,
952 4 : start_adr + input->length() * 2,
953 : captures);
954 :
955 4 : CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
956 4 : }
957 :
958 :
959 26643 : TEST(MacroAssemblerNativeBacktrack) {
960 4 : v8::V8::Initialize();
961 4 : ContextInitializer initializer;
962 : Isolate* isolate = CcTest::i_isolate();
963 : Factory* factory = isolate->factory();
964 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
965 :
966 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
967 8 : 0);
968 :
969 4 : Label fail;
970 4 : Label backtrack;
971 4 : m.LoadCurrentCharacter(10, &fail);
972 4 : m.Succeed();
973 4 : m.Bind(&fail);
974 4 : m.PushBacktrack(&backtrack);
975 4 : m.LoadCurrentCharacter(10, nullptr);
976 4 : m.Succeed();
977 4 : m.Bind(&backtrack);
978 4 : m.Fail();
979 :
980 4 : Handle<String> source = factory->NewStringFromStaticChars("..........");
981 4 : Handle<Object> code_object = m.GetCode(source);
982 : Handle<Code> code = Handle<Code>::cast(code_object);
983 :
984 4 : Handle<String> input = factory->NewStringFromStaticChars("foofoo");
985 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
986 : Address start_adr = seq_input->GetCharsAddress();
987 :
988 4 : NativeRegExpMacroAssembler::Result result = Execute(
989 : *code, *input, 0, start_adr, start_adr + input->length(), nullptr);
990 :
991 4 : CHECK_EQ(NativeRegExpMacroAssembler::FAILURE, result);
992 4 : }
993 :
994 :
995 26643 : TEST(MacroAssemblerNativeBackReferenceLATIN1) {
996 4 : v8::V8::Initialize();
997 4 : ContextInitializer initializer;
998 : Isolate* isolate = CcTest::i_isolate();
999 : Factory* factory = isolate->factory();
1000 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1001 :
1002 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1003 8 : 4);
1004 :
1005 4 : m.WriteCurrentPositionToRegister(0, 0);
1006 4 : m.AdvanceCurrentPosition(2);
1007 4 : m.WriteCurrentPositionToRegister(1, 0);
1008 4 : Label nomatch;
1009 4 : m.CheckNotBackReference(0, false, &nomatch);
1010 4 : m.Fail();
1011 4 : m.Bind(&nomatch);
1012 4 : m.AdvanceCurrentPosition(2);
1013 4 : Label missing_match;
1014 4 : m.CheckNotBackReference(0, false, &missing_match);
1015 4 : m.WriteCurrentPositionToRegister(2, 0);
1016 4 : m.Succeed();
1017 4 : m.Bind(&missing_match);
1018 4 : m.Fail();
1019 :
1020 4 : Handle<String> source = factory->NewStringFromStaticChars("^(..)..\1");
1021 4 : Handle<Object> code_object = m.GetCode(source);
1022 : Handle<Code> code = Handle<Code>::cast(code_object);
1023 :
1024 4 : Handle<String> input = factory->NewStringFromStaticChars("fooofo");
1025 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1026 : Address start_adr = seq_input->GetCharsAddress();
1027 :
1028 : int output[4];
1029 : NativeRegExpMacroAssembler::Result result =
1030 4 : Execute(*code,
1031 : *input,
1032 : 0,
1033 : start_adr,
1034 : start_adr + input->length(),
1035 : output);
1036 :
1037 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1038 4 : CHECK_EQ(0, output[0]);
1039 4 : CHECK_EQ(2, output[1]);
1040 4 : CHECK_EQ(6, output[2]);
1041 4 : CHECK_EQ(-1, output[3]);
1042 4 : }
1043 :
1044 :
1045 26643 : TEST(MacroAssemblerNativeBackReferenceUC16) {
1046 4 : v8::V8::Initialize();
1047 4 : ContextInitializer initializer;
1048 : Isolate* isolate = CcTest::i_isolate();
1049 : Factory* factory = isolate->factory();
1050 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1051 :
1052 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::UC16,
1053 8 : 4);
1054 :
1055 4 : m.WriteCurrentPositionToRegister(0, 0);
1056 4 : m.AdvanceCurrentPosition(2);
1057 4 : m.WriteCurrentPositionToRegister(1, 0);
1058 4 : Label nomatch;
1059 4 : m.CheckNotBackReference(0, false, &nomatch);
1060 4 : m.Fail();
1061 4 : m.Bind(&nomatch);
1062 4 : m.AdvanceCurrentPosition(2);
1063 4 : Label missing_match;
1064 4 : m.CheckNotBackReference(0, false, &missing_match);
1065 4 : m.WriteCurrentPositionToRegister(2, 0);
1066 4 : m.Succeed();
1067 4 : m.Bind(&missing_match);
1068 4 : m.Fail();
1069 :
1070 4 : Handle<String> source = factory->NewStringFromStaticChars("^(..)..\1");
1071 4 : Handle<Object> code_object = m.GetCode(source);
1072 : Handle<Code> code = Handle<Code>::cast(code_object);
1073 :
1074 4 : const uc16 input_data[6] = {'f', 0x2028, 'o', 'o', 'f', 0x2028};
1075 8 : Handle<String> input = factory->NewStringFromTwoByte(
1076 4 : Vector<const uc16>(input_data, 6)).ToHandleChecked();
1077 : Handle<SeqTwoByteString> seq_input = Handle<SeqTwoByteString>::cast(input);
1078 : Address start_adr = seq_input->GetCharsAddress();
1079 :
1080 : int output[4];
1081 : NativeRegExpMacroAssembler::Result result =
1082 4 : Execute(*code,
1083 : *input,
1084 : 0,
1085 : start_adr,
1086 4 : start_adr + input->length() * 2,
1087 : output);
1088 :
1089 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1090 4 : CHECK_EQ(0, output[0]);
1091 4 : CHECK_EQ(2, output[1]);
1092 4 : CHECK_EQ(6, output[2]);
1093 4 : CHECK_EQ(-1, output[3]);
1094 4 : }
1095 :
1096 :
1097 :
1098 26643 : TEST(MacroAssemblernativeAtStart) {
1099 4 : v8::V8::Initialize();
1100 4 : ContextInitializer initializer;
1101 : Isolate* isolate = CcTest::i_isolate();
1102 : Factory* factory = isolate->factory();
1103 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1104 :
1105 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1106 8 : 0);
1107 :
1108 4 : Label not_at_start, newline, fail;
1109 4 : m.CheckNotAtStart(0, ¬_at_start);
1110 : // Check that prevchar = '\n' and current = 'f'.
1111 4 : m.CheckCharacter('\n', &newline);
1112 4 : m.Bind(&fail);
1113 4 : m.Fail();
1114 4 : m.Bind(&newline);
1115 4 : m.LoadCurrentCharacter(0, &fail);
1116 4 : m.CheckNotCharacter('f', &fail);
1117 4 : m.Succeed();
1118 :
1119 4 : m.Bind(¬_at_start);
1120 : // Check that prevchar = 'o' and current = 'b'.
1121 4 : Label prevo;
1122 4 : m.CheckCharacter('o', &prevo);
1123 4 : m.Fail();
1124 4 : m.Bind(&prevo);
1125 4 : m.LoadCurrentCharacter(0, &fail);
1126 4 : m.CheckNotCharacter('b', &fail);
1127 4 : m.Succeed();
1128 :
1129 4 : Handle<String> source = factory->NewStringFromStaticChars("(^f|ob)");
1130 4 : Handle<Object> code_object = m.GetCode(source);
1131 : Handle<Code> code = Handle<Code>::cast(code_object);
1132 :
1133 4 : Handle<String> input = factory->NewStringFromStaticChars("foobar");
1134 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1135 : Address start_adr = seq_input->GetCharsAddress();
1136 :
1137 4 : NativeRegExpMacroAssembler::Result result = Execute(
1138 : *code, *input, 0, start_adr, start_adr + input->length(), nullptr);
1139 :
1140 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1141 :
1142 4 : result = Execute(*code, *input, 3, start_adr + 3, start_adr + input->length(),
1143 : nullptr);
1144 :
1145 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1146 4 : }
1147 :
1148 :
1149 26643 : TEST(MacroAssemblerNativeBackRefNoCase) {
1150 4 : v8::V8::Initialize();
1151 4 : ContextInitializer initializer;
1152 : Isolate* isolate = CcTest::i_isolate();
1153 : Factory* factory = isolate->factory();
1154 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1155 :
1156 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1157 8 : 4);
1158 :
1159 4 : Label fail, succ;
1160 :
1161 4 : m.WriteCurrentPositionToRegister(0, 0);
1162 4 : m.WriteCurrentPositionToRegister(2, 0);
1163 4 : m.AdvanceCurrentPosition(3);
1164 4 : m.WriteCurrentPositionToRegister(3, 0);
1165 4 : m.CheckNotBackReferenceIgnoreCase(2, false, false, &fail); // Match "AbC".
1166 4 : m.CheckNotBackReferenceIgnoreCase(2, false, false, &fail); // Match "ABC".
1167 4 : Label expected_fail;
1168 4 : m.CheckNotBackReferenceIgnoreCase(2, false, false, &expected_fail);
1169 4 : m.Bind(&fail);
1170 4 : m.Fail();
1171 :
1172 4 : m.Bind(&expected_fail);
1173 4 : m.AdvanceCurrentPosition(3); // Skip "xYz"
1174 4 : m.CheckNotBackReferenceIgnoreCase(2, false, false, &succ);
1175 4 : m.Fail();
1176 :
1177 4 : m.Bind(&succ);
1178 4 : m.WriteCurrentPositionToRegister(1, 0);
1179 4 : m.Succeed();
1180 :
1181 : Handle<String> source =
1182 4 : factory->NewStringFromStaticChars("^(abc)\1\1(?!\1)...(?!\1)");
1183 4 : Handle<Object> code_object = m.GetCode(source);
1184 : Handle<Code> code = Handle<Code>::cast(code_object);
1185 :
1186 4 : Handle<String> input = factory->NewStringFromStaticChars("aBcAbCABCxYzab");
1187 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1188 : Address start_adr = seq_input->GetCharsAddress();
1189 :
1190 : int output[4];
1191 : NativeRegExpMacroAssembler::Result result =
1192 4 : Execute(*code,
1193 : *input,
1194 : 0,
1195 : start_adr,
1196 : start_adr + input->length(),
1197 : output);
1198 :
1199 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1200 4 : CHECK_EQ(0, output[0]);
1201 4 : CHECK_EQ(12, output[1]);
1202 4 : CHECK_EQ(0, output[2]);
1203 4 : CHECK_EQ(3, output[3]);
1204 4 : }
1205 :
1206 :
1207 :
1208 26643 : TEST(MacroAssemblerNativeRegisters) {
1209 4 : v8::V8::Initialize();
1210 4 : ContextInitializer initializer;
1211 : Isolate* isolate = CcTest::i_isolate();
1212 : Factory* factory = isolate->factory();
1213 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1214 :
1215 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1216 8 : 6);
1217 :
1218 4 : uc16 foo_chars[3] = {'f', 'o', 'o'};
1219 : Vector<const uc16> foo(foo_chars, 3);
1220 :
1221 : enum registers { out1, out2, out3, out4, out5, out6, sp, loop_cnt };
1222 4 : Label fail;
1223 4 : Label backtrack;
1224 4 : m.WriteCurrentPositionToRegister(out1, 0); // Output: [0]
1225 4 : m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1226 4 : m.PushBacktrack(&backtrack);
1227 4 : m.WriteStackPointerToRegister(sp);
1228 : // Fill stack and registers
1229 4 : m.AdvanceCurrentPosition(2);
1230 4 : m.WriteCurrentPositionToRegister(out1, 0);
1231 4 : m.PushRegister(out1, RegExpMacroAssembler::kNoStackLimitCheck);
1232 4 : m.PushBacktrack(&fail);
1233 : // Drop backtrack stack frames.
1234 4 : m.ReadStackPointerFromRegister(sp);
1235 : // And take the first backtrack (to &backtrack)
1236 4 : m.Backtrack();
1237 :
1238 4 : m.PushCurrentPosition();
1239 4 : m.AdvanceCurrentPosition(2);
1240 4 : m.PopCurrentPosition();
1241 :
1242 4 : m.Bind(&backtrack);
1243 4 : m.PopRegister(out1);
1244 4 : m.ReadCurrentPositionFromRegister(out1);
1245 4 : m.AdvanceCurrentPosition(3);
1246 4 : m.WriteCurrentPositionToRegister(out2, 0); // [0,3]
1247 :
1248 4 : Label loop;
1249 4 : m.SetRegister(loop_cnt, 0); // loop counter
1250 4 : m.Bind(&loop);
1251 4 : m.AdvanceRegister(loop_cnt, 1);
1252 4 : m.AdvanceCurrentPosition(1);
1253 4 : m.IfRegisterLT(loop_cnt, 3, &loop);
1254 4 : m.WriteCurrentPositionToRegister(out3, 0); // [0,3,6]
1255 :
1256 4 : Label loop2;
1257 4 : m.SetRegister(loop_cnt, 2); // loop counter
1258 4 : m.Bind(&loop2);
1259 4 : m.AdvanceRegister(loop_cnt, -1);
1260 4 : m.AdvanceCurrentPosition(1);
1261 4 : m.IfRegisterGE(loop_cnt, 0, &loop2);
1262 4 : m.WriteCurrentPositionToRegister(out4, 0); // [0,3,6,9]
1263 :
1264 4 : Label loop3;
1265 4 : Label exit_loop3;
1266 4 : m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1267 4 : m.PushRegister(out4, RegExpMacroAssembler::kNoStackLimitCheck);
1268 4 : m.ReadCurrentPositionFromRegister(out3);
1269 4 : m.Bind(&loop3);
1270 4 : m.AdvanceCurrentPosition(1);
1271 4 : m.CheckGreedyLoop(&exit_loop3);
1272 4 : m.GoTo(&loop3);
1273 4 : m.Bind(&exit_loop3);
1274 4 : m.PopCurrentPosition();
1275 4 : m.WriteCurrentPositionToRegister(out5, 0); // [0,3,6,9,9,-1]
1276 :
1277 4 : m.Succeed();
1278 :
1279 4 : m.Bind(&fail);
1280 4 : m.Fail();
1281 :
1282 4 : Handle<String> source = factory->NewStringFromStaticChars("<loop test>");
1283 4 : Handle<Object> code_object = m.GetCode(source);
1284 : Handle<Code> code = Handle<Code>::cast(code_object);
1285 :
1286 : // String long enough for test (content doesn't matter).
1287 4 : Handle<String> input = factory->NewStringFromStaticChars("foofoofoofoofoo");
1288 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1289 : Address start_adr = seq_input->GetCharsAddress();
1290 :
1291 : int output[6];
1292 : NativeRegExpMacroAssembler::Result result =
1293 4 : Execute(*code,
1294 : *input,
1295 : 0,
1296 : start_adr,
1297 : start_adr + input->length(),
1298 : output);
1299 :
1300 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1301 4 : CHECK_EQ(0, output[0]);
1302 4 : CHECK_EQ(3, output[1]);
1303 4 : CHECK_EQ(6, output[2]);
1304 4 : CHECK_EQ(9, output[3]);
1305 4 : CHECK_EQ(9, output[4]);
1306 4 : CHECK_EQ(-1, output[5]);
1307 4 : }
1308 :
1309 :
1310 26643 : TEST(MacroAssemblerStackOverflow) {
1311 4 : v8::V8::Initialize();
1312 4 : ContextInitializer initializer;
1313 : Isolate* isolate = CcTest::i_isolate();
1314 : Factory* factory = isolate->factory();
1315 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1316 :
1317 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1318 8 : 0);
1319 :
1320 4 : Label loop;
1321 4 : m.Bind(&loop);
1322 4 : m.PushBacktrack(&loop);
1323 4 : m.GoTo(&loop);
1324 :
1325 : Handle<String> source =
1326 4 : factory->NewStringFromStaticChars("<stack overflow test>");
1327 4 : Handle<Object> code_object = m.GetCode(source);
1328 : Handle<Code> code = Handle<Code>::cast(code_object);
1329 :
1330 : // String long enough for test (content doesn't matter).
1331 4 : Handle<String> input = factory->NewStringFromStaticChars("dummy");
1332 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1333 : Address start_adr = seq_input->GetCharsAddress();
1334 :
1335 4 : NativeRegExpMacroAssembler::Result result = Execute(
1336 : *code, *input, 0, start_adr, start_adr + input->length(), nullptr);
1337 :
1338 4 : CHECK_EQ(NativeRegExpMacroAssembler::EXCEPTION, result);
1339 4 : CHECK(isolate->has_pending_exception());
1340 : isolate->clear_pending_exception();
1341 4 : }
1342 :
1343 :
1344 26643 : TEST(MacroAssemblerNativeLotsOfRegisters) {
1345 4 : v8::V8::Initialize();
1346 4 : ContextInitializer initializer;
1347 : Isolate* isolate = CcTest::i_isolate();
1348 : Factory* factory = isolate->factory();
1349 8 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1350 :
1351 : ArchRegExpMacroAssembler m(isolate, &zone, NativeRegExpMacroAssembler::LATIN1,
1352 8 : 2);
1353 :
1354 : // At least 2048, to ensure the allocated space for registers
1355 : // span one full page.
1356 : const int large_number = 8000;
1357 4 : m.WriteCurrentPositionToRegister(large_number, 42);
1358 4 : m.WriteCurrentPositionToRegister(0, 0);
1359 4 : m.WriteCurrentPositionToRegister(1, 1);
1360 4 : Label done;
1361 4 : m.CheckNotBackReference(0, false, &done); // Performs a system-stack push.
1362 4 : m.Bind(&done);
1363 4 : m.PushRegister(large_number, RegExpMacroAssembler::kNoStackLimitCheck);
1364 4 : m.PopRegister(1);
1365 4 : m.Succeed();
1366 :
1367 : Handle<String> source =
1368 4 : factory->NewStringFromStaticChars("<huge register space test>");
1369 4 : Handle<Object> code_object = m.GetCode(source);
1370 : Handle<Code> code = Handle<Code>::cast(code_object);
1371 :
1372 : // String long enough for test (content doesn't matter).
1373 4 : Handle<String> input = factory->NewStringFromStaticChars("sample text");
1374 : Handle<SeqOneByteString> seq_input = Handle<SeqOneByteString>::cast(input);
1375 : Address start_adr = seq_input->GetCharsAddress();
1376 :
1377 : int captures[2];
1378 : NativeRegExpMacroAssembler::Result result =
1379 4 : Execute(*code,
1380 : *input,
1381 : 0,
1382 : start_adr,
1383 : start_adr + input->length(),
1384 : captures);
1385 :
1386 4 : CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
1387 4 : CHECK_EQ(0, captures[0]);
1388 4 : CHECK_EQ(42, captures[1]);
1389 :
1390 : isolate->clear_pending_exception();
1391 4 : }
1392 :
1393 26644 : TEST(MacroAssembler) {
1394 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1395 10 : RegExpMacroAssemblerIrregexp m(CcTest::i_isolate(), &zone);
1396 : // ^f(o)o.
1397 5 : Label start, fail, backtrack;
1398 :
1399 5 : m.SetRegister(4, 42);
1400 5 : m.PushRegister(4, RegExpMacroAssembler::kNoStackLimitCheck);
1401 5 : m.AdvanceRegister(4, 42);
1402 5 : m.GoTo(&start);
1403 5 : m.Fail();
1404 5 : m.Bind(&start);
1405 5 : m.PushBacktrack(&fail);
1406 5 : m.CheckNotAtStart(0, nullptr);
1407 5 : m.LoadCurrentCharacter(0, nullptr);
1408 5 : m.CheckNotCharacter('f', nullptr);
1409 5 : m.LoadCurrentCharacter(1, nullptr);
1410 5 : m.CheckNotCharacter('o', nullptr);
1411 5 : m.LoadCurrentCharacter(2, nullptr);
1412 5 : m.CheckNotCharacter('o', nullptr);
1413 5 : m.WriteCurrentPositionToRegister(0, 0);
1414 5 : m.WriteCurrentPositionToRegister(1, 3);
1415 5 : m.WriteCurrentPositionToRegister(2, 1);
1416 5 : m.WriteCurrentPositionToRegister(3, 2);
1417 5 : m.AdvanceCurrentPosition(3);
1418 5 : m.PushBacktrack(&backtrack);
1419 5 : m.Succeed();
1420 5 : m.Bind(&backtrack);
1421 5 : m.ClearRegisters(2, 3);
1422 5 : m.Backtrack();
1423 5 : m.Bind(&fail);
1424 5 : m.PopRegister(0);
1425 5 : m.Fail();
1426 :
1427 : Isolate* isolate = CcTest::i_isolate();
1428 : Factory* factory = isolate->factory();
1429 : HandleScope scope(isolate);
1430 :
1431 5 : Handle<String> source = factory->NewStringFromStaticChars("^f(o)o");
1432 5 : Handle<ByteArray> array = Handle<ByteArray>::cast(m.GetCode(source));
1433 : int captures[5];
1434 :
1435 5 : const uc16 str1[] = {'f', 'o', 'o', 'b', 'a', 'r'};
1436 10 : Handle<String> f1_16 = factory->NewStringFromTwoByte(
1437 10 : Vector<const uc16>(str1, 6)).ToHandleChecked();
1438 :
1439 5 : CHECK(IrregexpInterpreter::Match(isolate, array, f1_16, captures, 0));
1440 5 : CHECK_EQ(0, captures[0]);
1441 5 : CHECK_EQ(3, captures[1]);
1442 5 : CHECK_EQ(1, captures[2]);
1443 5 : CHECK_EQ(2, captures[3]);
1444 5 : CHECK_EQ(84, captures[4]);
1445 :
1446 5 : const uc16 str2[] = {'b', 'a', 'r', 'f', 'o', 'o'};
1447 10 : Handle<String> f2_16 = factory->NewStringFromTwoByte(
1448 10 : Vector<const uc16>(str2, 6)).ToHandleChecked();
1449 :
1450 5 : CHECK(!IrregexpInterpreter::Match(isolate, array, f2_16, captures, 0));
1451 5 : CHECK_EQ(42, captures[0]);
1452 5 : }
1453 :
1454 26644 : TEST(AddInverseToTable) {
1455 : static const int kLimit = 1000;
1456 : static const int kRangeCount = 16;
1457 105 : for (int t = 0; t < 10; t++) {
1458 100 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1459 : ZoneList<CharacterRange>* ranges =
1460 : new(&zone) ZoneList<CharacterRange>(kRangeCount, &zone);
1461 1650 : for (int i = 0; i < kRangeCount; i++) {
1462 1600 : int from = PseudoRandom(t + 87, i + 25) % kLimit;
1463 1600 : int to = from + (PseudoRandom(i + 87, t + 25) % (kLimit / 20));
1464 800 : if (to > kLimit) to = kLimit;
1465 800 : ranges->Add(CharacterRange::Range(from, to), &zone);
1466 : }
1467 : DispatchTable table(&zone);
1468 : DispatchTableConstructor cons(&table, false, &zone);
1469 : cons.set_choice_index(0);
1470 50 : cons.AddInverse(ranges);
1471 100050 : for (int i = 0; i < kLimit; i++) {
1472 : bool is_on = false;
1473 1401230 : for (int j = 0; !is_on && j < kRangeCount; j++)
1474 : is_on = ranges->at(j).Contains(i);
1475 50000 : OutSet* set = table.Get(i);
1476 50000 : CHECK_EQ(is_on, set->Get(0) == false);
1477 : }
1478 : }
1479 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1480 : ZoneList<CharacterRange>* ranges =
1481 : new(&zone) ZoneList<CharacterRange>(1, &zone);
1482 5 : ranges->Add(CharacterRange::Range(0xFFF0, 0xFFFE), &zone);
1483 : DispatchTable table(&zone);
1484 : DispatchTableConstructor cons(&table, false, &zone);
1485 : cons.set_choice_index(0);
1486 5 : cons.AddInverse(ranges);
1487 5 : CHECK(!table.Get(0xFFFE)->Get(0));
1488 5 : CHECK(table.Get(0xFFFF)->Get(0));
1489 5 : }
1490 :
1491 : #ifndef V8_INTL_SUPPORT
1492 : static uc32 canonicalize(uc32 c) {
1493 : unibrow::uchar canon[unibrow::Ecma262Canonicalize::kMaxWidth];
1494 : int count = unibrow::Ecma262Canonicalize::Convert(c, '\0', canon, nullptr);
1495 : if (count == 0) {
1496 : return c;
1497 : } else {
1498 : CHECK_EQ(1, count);
1499 : return canon[0];
1500 : }
1501 : }
1502 :
1503 : TEST(LatinCanonicalize) {
1504 : unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1505 : for (unibrow::uchar lower = 'a'; lower <= 'z'; lower++) {
1506 : unibrow::uchar upper = lower + ('A' - 'a');
1507 : CHECK_EQ(canonicalize(lower), canonicalize(upper));
1508 : unibrow::uchar uncanon[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1509 : int length = un_canonicalize.get(lower, '\0', uncanon);
1510 : CHECK_EQ(2, length);
1511 : CHECK_EQ(upper, uncanon[0]);
1512 : CHECK_EQ(lower, uncanon[1]);
1513 : }
1514 : for (uc32 c = 128; c < (1 << 21); c++)
1515 : CHECK_GE(canonicalize(c), 128);
1516 : unibrow::Mapping<unibrow::ToUppercase> to_upper;
1517 : // Canonicalization is only defined for the Basic Multilingual Plane.
1518 : for (uc32 c = 0; c < (1 << 16); c++) {
1519 : unibrow::uchar upper[unibrow::ToUppercase::kMaxWidth];
1520 : int length = to_upper.get(c, '\0', upper);
1521 : if (length == 0) {
1522 : length = 1;
1523 : upper[0] = c;
1524 : }
1525 : uc32 u = upper[0];
1526 : if (length > 1 || (c >= 128 && u < 128))
1527 : u = c;
1528 : CHECK_EQ(u, canonicalize(c));
1529 : }
1530 : }
1531 :
1532 : static uc32 CanonRangeEnd(uc32 c) {
1533 : unibrow::uchar canon[unibrow::CanonicalizationRange::kMaxWidth];
1534 : int count = unibrow::CanonicalizationRange::Convert(c, '\0', canon, nullptr);
1535 : if (count == 0) {
1536 : return c;
1537 : } else {
1538 : CHECK_EQ(1, count);
1539 : return canon[0];
1540 : }
1541 : }
1542 :
1543 :
1544 : TEST(RangeCanonicalization) {
1545 : // Check that we arrive at the same result when using the basic
1546 : // range canonicalization primitives as when using immediate
1547 : // canonicalization.
1548 : unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1549 : int block_start = 0;
1550 : while (block_start <= 0xFFFF) {
1551 : uc32 block_end = CanonRangeEnd(block_start);
1552 : unsigned block_length = block_end - block_start + 1;
1553 : if (block_length > 1) {
1554 : unibrow::uchar first[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1555 : int first_length = un_canonicalize.get(block_start, '\0', first);
1556 : for (unsigned i = 1; i < block_length; i++) {
1557 : unibrow::uchar succ[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1558 : int succ_length = un_canonicalize.get(block_start + i, '\0', succ);
1559 : CHECK_EQ(first_length, succ_length);
1560 : for (int j = 0; j < succ_length; j++) {
1561 : int calc = first[j] + i;
1562 : int found = succ[j];
1563 : CHECK_EQ(calc, found);
1564 : }
1565 : }
1566 : }
1567 : block_start = block_start + block_length;
1568 : }
1569 : }
1570 :
1571 :
1572 : TEST(UncanonicalizeEquivalence) {
1573 : unibrow::Mapping<unibrow::Ecma262UnCanonicalize> un_canonicalize;
1574 : unibrow::uchar chars[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1575 : for (int i = 0; i < (1 << 16); i++) {
1576 : int length = un_canonicalize.get(i, '\0', chars);
1577 : for (int j = 0; j < length; j++) {
1578 : unibrow::uchar chars2[unibrow::Ecma262UnCanonicalize::kMaxWidth];
1579 : int length2 = un_canonicalize.get(chars[j], '\0', chars2);
1580 : CHECK_EQ(length, length2);
1581 : for (int k = 0; k < length; k++)
1582 : CHECK_EQ(static_cast<int>(chars[k]), static_cast<int>(chars2[k]));
1583 : }
1584 : }
1585 : }
1586 :
1587 : #endif
1588 :
1589 30 : static void TestRangeCaseIndependence(Isolate* isolate, CharacterRange input,
1590 : Vector<CharacterRange> expected) {
1591 60 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1592 : int count = expected.length();
1593 : ZoneList<CharacterRange>* list =
1594 : new(&zone) ZoneList<CharacterRange>(count, &zone);
1595 30 : list->Add(input, &zone);
1596 30 : CharacterRange::AddCaseEquivalents(isolate, &zone, list, false);
1597 30 : list->Remove(0); // Remove the input before checking results.
1598 30 : CHECK_EQ(count, list->length());
1599 90 : for (int i = 0; i < list->length(); i++) {
1600 30 : CHECK_EQ(expected[i].from(), list->at(i).from());
1601 30 : CHECK_EQ(expected[i].to(), list->at(i).to());
1602 : }
1603 30 : }
1604 :
1605 :
1606 30 : static void TestSimpleRangeCaseIndependence(Isolate* isolate,
1607 : CharacterRange input,
1608 : CharacterRange expected) {
1609 : EmbeddedVector<CharacterRange, 1> vector;
1610 30 : vector[0] = expected;
1611 30 : TestRangeCaseIndependence(isolate, input, vector);
1612 30 : }
1613 :
1614 :
1615 26644 : TEST(CharacterRangeCaseIndependence) {
1616 : Isolate* isolate = CcTest::i_isolate();
1617 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Singleton('a'),
1618 5 : CharacterRange::Singleton('A'));
1619 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Singleton('z'),
1620 5 : CharacterRange::Singleton('Z'));
1621 : #ifndef V8_INTL_SUPPORT
1622 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('a', 'z'),
1623 : CharacterRange::Range('A', 'Z'));
1624 : #endif // !V8_INTL_SUPPORT
1625 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('c', 'f'),
1626 5 : CharacterRange::Range('C', 'F'));
1627 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('a', 'b'),
1628 5 : CharacterRange::Range('A', 'B'));
1629 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('y', 'z'),
1630 5 : CharacterRange::Range('Y', 'Z'));
1631 : #ifndef V8_INTL_SUPPORT
1632 : TestSimpleRangeCaseIndependence(isolate,
1633 : CharacterRange::Range('a' - 1, 'z' + 1),
1634 : CharacterRange::Range('A', 'Z'));
1635 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('A', 'Z'),
1636 : CharacterRange::Range('a', 'z'));
1637 : #endif // !V8_INTL_SUPPORT
1638 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('C', 'F'),
1639 5 : CharacterRange::Range('c', 'f'));
1640 : #ifndef V8_INTL_SUPPORT
1641 : TestSimpleRangeCaseIndependence(isolate,
1642 : CharacterRange::Range('A' - 1, 'Z' + 1),
1643 : CharacterRange::Range('a', 'z'));
1644 : // Here we need to add [l-z] to complete the case independence of
1645 : // [A-Za-z] but we expect [a-z] to be added since we always add a
1646 : // whole block at a time.
1647 : TestSimpleRangeCaseIndependence(isolate, CharacterRange::Range('A', 'k'),
1648 : CharacterRange::Range('a', 'z'));
1649 : #endif // !V8_INTL_SUPPORT
1650 5 : }
1651 :
1652 :
1653 : static bool InClass(uc32 c, ZoneList<CharacterRange>* ranges) {
1654 22282160 : if (ranges == nullptr) return false;
1655 66764570 : for (int i = 0; i < ranges->length(); i++) {
1656 27811745 : CharacterRange range = ranges->at(i);
1657 27811745 : if (range.from() <= c && c <= range.to())
1658 : return true;
1659 : }
1660 : return false;
1661 : }
1662 :
1663 :
1664 26644 : TEST(UnicodeRangeSplitter) {
1665 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1666 : ZoneList<CharacterRange>* base =
1667 : new(&zone) ZoneList<CharacterRange>(1, &zone);
1668 5 : base->Add(CharacterRange::Everything(), &zone);
1669 5 : UnicodeRangeSplitter splitter(&zone, base);
1670 : // BMP
1671 552965 : for (uc32 c = 0; c < 0xD800; c++) {
1672 276480 : CHECK(InClass(c, splitter.bmp()));
1673 276480 : CHECK(!InClass(c, splitter.lead_surrogates()));
1674 276480 : CHECK(!InClass(c, splitter.trail_surrogates()));
1675 276480 : CHECK(!InClass(c, splitter.non_bmp()));
1676 : }
1677 : // Lead surrogates
1678 10235 : for (uc32 c = 0xD800; c < 0xDBFF; c++) {
1679 5115 : CHECK(!InClass(c, splitter.bmp()));
1680 5115 : CHECK(InClass(c, splitter.lead_surrogates()));
1681 5115 : CHECK(!InClass(c, splitter.trail_surrogates()));
1682 5115 : CHECK(!InClass(c, splitter.non_bmp()));
1683 : }
1684 : // Trail surrogates
1685 10235 : for (uc32 c = 0xDC00; c < 0xDFFF; c++) {
1686 5115 : CHECK(!InClass(c, splitter.bmp()));
1687 5115 : CHECK(!InClass(c, splitter.lead_surrogates()));
1688 5115 : CHECK(InClass(c, splitter.trail_surrogates()));
1689 5115 : CHECK(!InClass(c, splitter.non_bmp()));
1690 : }
1691 : // BMP
1692 81915 : for (uc32 c = 0xE000; c < 0xFFFF; c++) {
1693 40955 : CHECK(InClass(c, splitter.bmp()));
1694 40955 : CHECK(!InClass(c, splitter.lead_surrogates()));
1695 40955 : CHECK(!InClass(c, splitter.trail_surrogates()));
1696 40955 : CHECK(!InClass(c, splitter.non_bmp()));
1697 : }
1698 : // Non-BMP
1699 10485755 : for (uc32 c = 0x10000; c < 0x10FFFF; c++) {
1700 5242875 : CHECK(!InClass(c, splitter.bmp()));
1701 5242875 : CHECK(!InClass(c, splitter.lead_surrogates()));
1702 5242875 : CHECK(!InClass(c, splitter.trail_surrogates()));
1703 5242875 : CHECK(InClass(c, splitter.non_bmp()));
1704 : }
1705 5 : }
1706 :
1707 :
1708 26644 : TEST(CanonicalizeCharacterSets) {
1709 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1710 : ZoneList<CharacterRange>* list =
1711 : new(&zone) ZoneList<CharacterRange>(4, &zone);
1712 : CharacterSet set(list);
1713 :
1714 5 : list->Add(CharacterRange::Range(10, 20), &zone);
1715 5 : list->Add(CharacterRange::Range(30, 40), &zone);
1716 5 : list->Add(CharacterRange::Range(50, 60), &zone);
1717 5 : set.Canonicalize();
1718 5 : CHECK_EQ(3, list->length());
1719 5 : CHECK_EQ(10, list->at(0).from());
1720 5 : CHECK_EQ(20, list->at(0).to());
1721 5 : CHECK_EQ(30, list->at(1).from());
1722 5 : CHECK_EQ(40, list->at(1).to());
1723 5 : CHECK_EQ(50, list->at(2).from());
1724 5 : CHECK_EQ(60, list->at(2).to());
1725 :
1726 : list->Rewind(0);
1727 5 : list->Add(CharacterRange::Range(10, 20), &zone);
1728 5 : list->Add(CharacterRange::Range(50, 60), &zone);
1729 5 : list->Add(CharacterRange::Range(30, 40), &zone);
1730 5 : set.Canonicalize();
1731 5 : CHECK_EQ(3, list->length());
1732 5 : CHECK_EQ(10, list->at(0).from());
1733 5 : CHECK_EQ(20, list->at(0).to());
1734 5 : CHECK_EQ(30, list->at(1).from());
1735 5 : CHECK_EQ(40, list->at(1).to());
1736 5 : CHECK_EQ(50, list->at(2).from());
1737 5 : CHECK_EQ(60, list->at(2).to());
1738 :
1739 : list->Rewind(0);
1740 5 : list->Add(CharacterRange::Range(30, 40), &zone);
1741 5 : list->Add(CharacterRange::Range(10, 20), &zone);
1742 5 : list->Add(CharacterRange::Range(25, 25), &zone);
1743 5 : list->Add(CharacterRange::Range(100, 100), &zone);
1744 5 : list->Add(CharacterRange::Range(1, 1), &zone);
1745 5 : set.Canonicalize();
1746 5 : CHECK_EQ(5, list->length());
1747 5 : CHECK_EQ(1, list->at(0).from());
1748 5 : CHECK_EQ(1, list->at(0).to());
1749 5 : CHECK_EQ(10, list->at(1).from());
1750 5 : CHECK_EQ(20, list->at(1).to());
1751 5 : CHECK_EQ(25, list->at(2).from());
1752 5 : CHECK_EQ(25, list->at(2).to());
1753 5 : CHECK_EQ(30, list->at(3).from());
1754 5 : CHECK_EQ(40, list->at(3).to());
1755 5 : CHECK_EQ(100, list->at(4).from());
1756 5 : CHECK_EQ(100, list->at(4).to());
1757 :
1758 : list->Rewind(0);
1759 5 : list->Add(CharacterRange::Range(10, 19), &zone);
1760 5 : list->Add(CharacterRange::Range(21, 30), &zone);
1761 5 : list->Add(CharacterRange::Range(20, 20), &zone);
1762 5 : set.Canonicalize();
1763 5 : CHECK_EQ(1, list->length());
1764 5 : CHECK_EQ(10, list->at(0).from());
1765 5 : CHECK_EQ(30, list->at(0).to());
1766 5 : }
1767 :
1768 :
1769 26644 : TEST(CharacterRangeMerge) {
1770 10 : Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
1771 : ZoneList<CharacterRange> l1(4, &zone);
1772 : ZoneList<CharacterRange> l2(4, &zone);
1773 : // Create all combinations of intersections of ranges, both singletons and
1774 : // longer.
1775 :
1776 : int offset = 0;
1777 :
1778 : // The five kinds of singleton intersections:
1779 : // X
1780 : // Y - outside before
1781 : // Y - outside touching start
1782 : // Y - overlap
1783 : // Y - outside touching end
1784 : // Y - outside after
1785 :
1786 55 : for (int i = 0; i < 5; i++) {
1787 25 : l1.Add(CharacterRange::Singleton(offset + 2), &zone);
1788 25 : l2.Add(CharacterRange::Singleton(offset + i), &zone);
1789 25 : offset += 6;
1790 : }
1791 :
1792 : // The seven kinds of singleton/non-singleton intersections:
1793 : // XXX
1794 : // Y - outside before
1795 : // Y - outside touching start
1796 : // Y - inside touching start
1797 : // Y - entirely inside
1798 : // Y - inside touching end
1799 : // Y - outside touching end
1800 : // Y - disjoint after
1801 :
1802 75 : for (int i = 0; i < 7; i++) {
1803 35 : l1.Add(CharacterRange::Range(offset + 2, offset + 4), &zone);
1804 35 : l2.Add(CharacterRange::Singleton(offset + i), &zone);
1805 35 : offset += 8;
1806 : }
1807 :
1808 : // The eleven kinds of non-singleton intersections:
1809 : //
1810 : // XXXXXXXX
1811 : // YYYY - outside before.
1812 : // YYYY - outside touching start.
1813 : // YYYY - overlapping start
1814 : // YYYY - inside touching start
1815 : // YYYY - entirely inside
1816 : // YYYY - inside touching end
1817 : // YYYY - overlapping end
1818 : // YYYY - outside touching end
1819 : // YYYY - outside after
1820 : // YYYYYYYY - identical
1821 : // YYYYYYYYYYYY - containing entirely.
1822 :
1823 95 : for (int i = 0; i < 9; i++) {
1824 45 : l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone); // Length 8.
1825 45 : l2.Add(CharacterRange::Range(offset + 2 * i, offset + 2 * i + 3), &zone);
1826 45 : offset += 22;
1827 : }
1828 5 : l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1829 5 : l2.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1830 : offset += 22;
1831 5 : l1.Add(CharacterRange::Range(offset + 6, offset + 15), &zone);
1832 5 : l2.Add(CharacterRange::Range(offset + 4, offset + 17), &zone);
1833 5 : offset += 22;
1834 :
1835 : // Different kinds of multi-range overlap:
1836 : // XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXX
1837 : // YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y YYYY Y
1838 :
1839 5 : l1.Add(CharacterRange::Range(offset, offset + 21), &zone);
1840 5 : l1.Add(CharacterRange::Range(offset + 31, offset + 52), &zone);
1841 65 : for (int i = 0; i < 6; i++) {
1842 30 : l2.Add(CharacterRange::Range(offset + 2, offset + 5), &zone);
1843 30 : l2.Add(CharacterRange::Singleton(offset + 8), &zone);
1844 30 : offset += 9;
1845 : }
1846 :
1847 5 : CHECK(CharacterRange::IsCanonical(&l1));
1848 5 : CHECK(CharacterRange::IsCanonical(&l2));
1849 :
1850 : ZoneList<CharacterRange> first_only(4, &zone);
1851 : ZoneList<CharacterRange> second_only(4, &zone);
1852 : ZoneList<CharacterRange> both(4, &zone);
1853 5 : }
1854 :
1855 :
1856 26644 : TEST(Graph) {
1857 5 : Execute("\\b\\w+\\b", false, true, true);
1858 5 : }
1859 :
1860 :
1861 : namespace {
1862 :
1863 : int* global_use_counts = nullptr;
1864 :
1865 46 : void MockUseCounterCallback(v8::Isolate* isolate,
1866 : v8::Isolate::UseCounterFeature feature) {
1867 46 : ++global_use_counts[feature];
1868 46 : }
1869 : }
1870 :
1871 :
1872 : // Test that ES2015 RegExp compatibility fixes are in place, that they
1873 : // are not overly broad, and the appropriate UseCounters are incremented
1874 26644 : TEST(UseCountRegExp) {
1875 5 : v8::Isolate* isolate = CcTest::isolate();
1876 10 : v8::HandleScope scope(isolate);
1877 5 : LocalContext env;
1878 5 : int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
1879 5 : global_use_counts = use_counts;
1880 5 : CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
1881 :
1882 : // Compat fix: RegExp.prototype.sticky == undefined; UseCounter tracks it
1883 : v8::Local<v8::Value> resultSticky = CompileRun("RegExp.prototype.sticky");
1884 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1885 5 : CHECK_EQ(0, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1886 5 : CHECK(resultSticky->IsUndefined());
1887 :
1888 : // re.sticky has approriate value and doesn't touch UseCounter
1889 : v8::Local<v8::Value> resultReSticky = CompileRun("/a/.sticky");
1890 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1891 5 : CHECK_EQ(0, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1892 5 : CHECK(resultReSticky->IsFalse());
1893 :
1894 : // When the getter is caleld on another object, throw an exception
1895 : // and don't increment the UseCounter
1896 : v8::Local<v8::Value> resultStickyError = CompileRun(
1897 : "var exception;"
1898 : "try { "
1899 : " Object.getOwnPropertyDescriptor(RegExp.prototype, 'sticky')"
1900 : " .get.call(null);"
1901 : "} catch (e) {"
1902 : " exception = e;"
1903 : "}"
1904 : "exception");
1905 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1906 5 : CHECK_EQ(0, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1907 5 : CHECK(resultStickyError->IsObject());
1908 :
1909 : // RegExp.prototype.toString() returns '/(?:)/' as a compatibility fix;
1910 : // a UseCounter is incremented to track it.
1911 : v8::Local<v8::Value> resultToString =
1912 : CompileRun("RegExp.prototype.toString().length");
1913 5 : CHECK_EQ(2, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1914 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1915 5 : CHECK(resultToString->IsInt32());
1916 10 : CHECK_EQ(6,
1917 : resultToString->Int32Value(isolate->GetCurrentContext()).FromJust());
1918 :
1919 : // .toString() works on normal RegExps
1920 : v8::Local<v8::Value> resultReToString = CompileRun("/a/.toString().length");
1921 5 : CHECK_EQ(2, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1922 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1923 5 : CHECK(resultReToString->IsInt32());
1924 10 : CHECK_EQ(
1925 : 3, resultReToString->Int32Value(isolate->GetCurrentContext()).FromJust());
1926 :
1927 : // .toString() throws on non-RegExps that aren't RegExp.prototype
1928 : v8::Local<v8::Value> resultToStringError = CompileRun(
1929 : "var exception;"
1930 : "try { RegExp.prototype.toString.call(null) }"
1931 : "catch (e) { exception = e; }"
1932 : "exception");
1933 5 : CHECK_EQ(2, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
1934 5 : CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeToString]);
1935 5 : CHECK(resultToStringError->IsObject());
1936 5 : }
1937 :
1938 15 : class UncachedExternalString
1939 : : public v8::String::ExternalOneByteStringResource {
1940 : public:
1941 25 : const char* data() const override { return "abcdefghijklmnopqrstuvwxyz"; }
1942 20 : size_t length() const override { return 26; }
1943 5 : bool IsCacheable() const override { return false; }
1944 : };
1945 :
1946 26644 : TEST(UncachedExternalString) {
1947 5 : v8::Isolate* isolate = CcTest::isolate();
1948 10 : v8::HandleScope scope(isolate);
1949 5 : LocalContext env;
1950 : v8::Local<v8::String> external =
1951 10 : v8::String::NewExternalOneByte(isolate, new UncachedExternalString())
1952 : .ToLocalChecked();
1953 5 : CHECK(v8::Utils::OpenHandle(*external)->map() ==
1954 : ReadOnlyRoots(CcTest::i_isolate())
1955 : .uncached_external_one_byte_string_map());
1956 5 : v8::Local<v8::Object> global = env->Global();
1957 15 : global->Set(env.local(), v8_str("external"), external).FromJust();
1958 : CompileRun("var re = /y(.)/; re.test('ab');");
1959 5 : ExpectString("external.substring(1).match(re)[1]", "z");
1960 5 : }
1961 :
1962 : } // namespace test_regexp
1963 : } // namespace internal
1964 79917 : } // namespace v8
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