1 //===- unittest/Format/TokenAnnotatorTest.cpp - Formatting unit tests -----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Format/Format.h" 10 11 #include "FormatTestUtils.h" 12 #include "TestLexer.h" 13 #include "gtest/gtest.h" 14 15 namespace clang { 16 namespace format { 17 18 // Not really the equality, but everything we need. 19 static bool operator==(const FormatToken &LHS, 20 const FormatToken &RHS) noexcept { 21 return LHS.Tok.getKind() == RHS.Tok.getKind() && 22 LHS.getType() == RHS.getType(); 23 } 24 25 namespace { 26 27 class TokenAnnotatorTest : public ::testing::Test { 28 protected: 29 TokenList annotate(llvm::StringRef Code, 30 const FormatStyle &Style = getLLVMStyle()) { 31 return TestLexer(Allocator, Buffers, Style).annotate(Code); 32 } 33 llvm::SpecificBumpPtrAllocator<FormatToken> Allocator; 34 std::vector<std::unique_ptr<llvm::MemoryBuffer>> Buffers; 35 }; 36 37 #define EXPECT_TOKEN_KIND(FormatTok, Kind) \ 38 EXPECT_EQ((FormatTok)->Tok.getKind(), Kind) << *(FormatTok) 39 #define EXPECT_TOKEN_TYPE(FormatTok, Type) \ 40 EXPECT_EQ((FormatTok)->getType(), Type) << *(FormatTok) 41 #define EXPECT_TOKEN(FormatTok, Kind, Type) \ 42 do { \ 43 EXPECT_TOKEN_KIND(FormatTok, Kind); \ 44 EXPECT_TOKEN_TYPE(FormatTok, Type); \ 45 } while (false) 46 47 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfStarAndAmp) { 48 auto Tokens = annotate("auto x = [](const decltype(x) &ptr) {};"); 49 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 50 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 51 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 52 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 53 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 54 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 55 56 Tokens = annotate("auto x = [](const decltype(x) *ptr) {};"); 57 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 58 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 59 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 60 61 Tokens = annotate("#define lambda [](const decltype(x) &ptr) {}"); 62 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 63 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 64 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 65 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 66 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 67 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 68 69 Tokens = annotate("#define lambda [](const decltype(x) *ptr) {}"); 70 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 71 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 72 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 73 74 Tokens = annotate("void f() {\n" 75 " while (p < a && *p == 'a')\n" 76 " p++;\n" 77 "}"); 78 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 79 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 80 EXPECT_TOKEN(Tokens[11], tok::star, TT_UnaryOperator); 81 82 Tokens = annotate("case *x:"); 83 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 84 EXPECT_TOKEN(Tokens[1], tok::star, TT_UnaryOperator); 85 Tokens = annotate("case &x:"); 86 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 87 EXPECT_TOKEN(Tokens[1], tok::amp, TT_UnaryOperator); 88 89 Tokens = annotate("struct {\n" 90 "} *ptr;"); 91 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 92 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 93 Tokens = annotate("union {\n" 94 "} *ptr;"); 95 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 96 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 97 Tokens = annotate("class {\n" 98 "} *ptr;"); 99 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 100 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 101 102 Tokens = annotate("struct {\n" 103 "} &&ptr = {};"); 104 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 105 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 106 Tokens = annotate("union {\n" 107 "} &&ptr = {};"); 108 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 109 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 110 Tokens = annotate("class {\n" 111 "} &&ptr = {};"); 112 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 113 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 114 Tokens = annotate("int i = int{42} * 2;"); 115 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 116 EXPECT_TOKEN(Tokens[7], tok::star, TT_BinaryOperator); 117 } 118 119 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 120 auto Tokens = annotate("x - 0"); 121 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 122 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 123 Tokens = annotate("0 + 0"); 124 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 125 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 126 Tokens = annotate("x + +0"); 127 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 128 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 129 Tokens = annotate("x ? -0 : +0"); 130 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 131 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 132 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 133 Tokens = annotate("(-0)"); 134 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 135 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 136 Tokens = annotate("0, -0"); 137 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 138 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 139 Tokens = annotate("for (; -1;) {\n}"); 140 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 141 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 142 Tokens = annotate("x = -1;"); 143 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 144 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 145 Tokens = annotate("x[-1]"); 146 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 147 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 148 Tokens = annotate("x = {-1};"); 149 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 150 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 151 Tokens = annotate("case -x:"); 152 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 153 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 154 Tokens = annotate("co_await -x;"); 155 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 156 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 157 Tokens = annotate("co_return -x;"); 158 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 159 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 160 Tokens = annotate("co_yield -x;"); 161 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 162 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 163 Tokens = annotate("delete -x;"); 164 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 165 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 166 Tokens = annotate("return -x;"); 167 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 168 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 169 Tokens = annotate("throw -x;"); 170 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 171 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 172 Tokens = annotate("sizeof -x"); 173 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 174 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 175 Tokens = annotate("co_await +x;"); 176 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 177 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 178 Tokens = annotate("co_return +x;"); 179 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 180 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 181 Tokens = annotate("co_yield +x;"); 182 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 183 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 184 Tokens = annotate("delete +x;"); 185 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 186 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 187 Tokens = annotate("return +x;"); 188 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 189 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 190 Tokens = annotate("throw +x;"); 191 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 192 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 193 Tokens = annotate("sizeof +x"); 194 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 195 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 196 Tokens = annotate("(int)-x"); 197 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 198 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 199 Tokens = annotate("(-x)"); 200 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 201 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 202 Tokens = annotate("!+x"); 203 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 204 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 205 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 206 } 207 208 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 209 auto Tokens = annotate("class C {};"); 210 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 211 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 212 213 Tokens = annotate("const class C {} c;"); 214 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 215 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 216 217 Tokens = annotate("const class {} c;"); 218 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 219 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 220 } 221 222 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 223 auto Tokens = annotate("struct S {};"); 224 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 225 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 226 } 227 228 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 229 auto Tokens = annotate("union U {};"); 230 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 231 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 232 233 Tokens = annotate("union U { void f() { return; } };"); 234 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 235 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 236 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 237 } 238 239 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 240 auto Tokens = annotate("enum E {};"); 241 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 242 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 243 } 244 245 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 246 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 247 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 248 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 249 250 Tokens = annotate("template <typename T> void F(T) && = delete;"); 251 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 252 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 253 } 254 255 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 256 auto Tokens = 257 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 258 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 259 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 260 } 261 262 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 263 auto Tokens = 264 annotate("template <typename T> " 265 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 266 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 267 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 268 } 269 270 TEST_F(TokenAnnotatorTest, UnderstandsLBracesInMacroDefinition) { 271 auto Tokens = annotate("#define BEGIN NS {"); 272 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 273 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_Unknown); 274 } 275 276 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 277 auto Tokens = annotate("delete (void *)p;"); 278 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 279 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 280 281 Tokens = annotate("delete[] (void *)p;"); 282 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 283 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 284 285 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 286 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 287 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 288 289 Tokens = annotate("delete[/*comment*/] (void *)p;"); 290 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 291 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 292 293 Tokens = annotate("delete/*comment*/[] (void *)p;"); 294 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 295 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 296 } 297 298 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 299 auto Tokens = annotate("void f() &;"); 300 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 301 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 302 303 Tokens = annotate("void operator=(T) &&;"); 304 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 305 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 306 307 Tokens = annotate("template <typename T> void f() &;"); 308 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 309 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 310 311 Tokens = annotate("template <typename T> void operator=(T) &;"); 312 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 313 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 314 } 315 316 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 317 auto Tokens = annotate("template <typename T>\n" 318 "concept C = (Foo && Bar) && (Bar && Baz);"); 319 320 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 321 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 322 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 323 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 324 325 Tokens = annotate("template <typename T>\n" 326 "concept C = requires(T t) {\n" 327 " { t.foo() };\n" 328 "} && Bar<T> && Baz<T>;"); 329 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 330 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 331 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 332 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 333 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 334 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 335 336 Tokens = annotate("template<typename T>\n" 337 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 338 "struct Foo;"); 339 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 340 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 341 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 342 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 343 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 344 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 345 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 346 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 347 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 348 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 349 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 350 351 Tokens = 352 annotate("template<typename T>\n" 353 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 354 "struct Foo;"); 355 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 356 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 357 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 358 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 359 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 360 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 361 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 362 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 363 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 364 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 365 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 366 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 367 368 Tokens = annotate("template <typename T>\n" 369 "void foo(T) noexcept requires Bar<T>;"); 370 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 371 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 372 373 Tokens = annotate("template <typename T>\n" 374 "struct S {\n" 375 " void foo() const requires Bar<T>;\n" 376 " void bar() const & requires Baz<T>;\n" 377 " void bar() && requires Baz2<T>;\n" 378 " void baz() const & noexcept requires Baz<T>;\n" 379 " void baz() && noexcept requires Baz2<T>;\n" 380 "};\n" 381 "\n" 382 "void S::bar() const & requires Baz<T> { }"); 383 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 384 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 385 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 386 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 387 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 388 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 389 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 390 391 Tokens = annotate("void Class::member() && requires(Constant) {}"); 392 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 393 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 394 395 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 396 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 397 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 398 399 Tokens = 400 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 401 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 402 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 403 404 Tokens = annotate("void Class::member() && requires(typename " 405 "Namespace::Outer<T>::Inner::Constant) {}"); 406 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 407 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 408 409 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 410 " template<class T>\n" 411 " requires requires { number_zero_v<T>; }\n" 412 " [[nodiscard]] constexpr operator T() const { " 413 "return number_zero_v<T>; }\n" 414 "};"); 415 ASSERT_EQ(Tokens.size(), 44u); 416 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 417 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 418 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 419 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 420 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 421 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 422 423 Tokens = 424 annotate("template <class A, class B> concept C =" 425 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 426 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 427 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 428 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 429 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 430 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 431 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 432 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 433 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 434 435 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 436 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 437 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 438 439 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 440 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 441 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 442 443 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 444 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 445 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 446 447 Tokens = 448 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 449 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 450 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 451 452 Tokens = 453 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 454 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 455 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 456 457 Tokens = 458 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 459 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 460 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 461 } 462 463 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 464 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 465 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 466 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 467 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 468 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 469 470 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 471 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 472 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 473 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 474 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 475 476 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 477 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 478 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 479 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 480 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 481 482 Tokens = annotate("foo(requires(const T t) {});"); 483 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 484 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 485 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 486 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 487 488 Tokens = annotate("foo(requires(const int t) {});"); 489 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 490 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 491 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 492 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 493 494 Tokens = annotate("foo(requires(const T t) {});"); 495 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 496 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 497 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 498 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 499 500 Tokens = annotate("foo(requires(int const* volatile t) {});"); 501 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 502 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 503 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 504 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 505 506 Tokens = annotate("foo(requires(T const* volatile t) {});"); 507 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 508 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 509 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 510 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 511 512 Tokens = 513 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 514 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 515 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 516 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 517 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 518 519 Tokens = annotate("template <typename T>\n" 520 "concept C = requires(T T) {\n" 521 " requires Bar<T> && Foo<T>;\n" 522 "};"); 523 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 524 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 525 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 526 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 527 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 528 TT_RequiresClauseInARequiresExpression); 529 530 Tokens = annotate("template <typename T>\n" 531 "concept C = requires(T T) {\n" 532 " { t.func() } -> std::same_as<int>;" 533 " requires Bar<T> && Foo<T>;\n" 534 "};"); 535 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 536 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 537 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 538 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 539 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 540 TT_RequiresClauseInARequiresExpression); 541 542 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 543 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 544 "requires true; };"); 545 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 546 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 547 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 548 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 549 } 550 551 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 552 auto NumberOfAdditionalRequiresClauseTokens = 5u; 553 auto NumberOfTokensBeforeRequires = 5u; 554 555 auto BaseTokens = annotate("template<typename T>\n" 556 "T Pi = 3.14;"); 557 auto ConstrainedTokens = annotate("template<typename T>\n" 558 " requires Foo<T>\n" 559 "T Pi = 3.14;"); 560 561 auto NumberOfBaseTokens = 11u; 562 563 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 564 ASSERT_EQ(ConstrainedTokens.size(), 565 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 566 << ConstrainedTokens; 567 568 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 569 if (I < NumberOfTokensBeforeRequires) { 570 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 571 } else { 572 EXPECT_EQ(*BaseTokens[I], 573 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 574 << I; 575 } 576 } 577 578 BaseTokens = annotate("template<typename T>\n" 579 "struct Bar;"); 580 ConstrainedTokens = annotate("template<typename T>\n" 581 " requires Foo<T>\n" 582 "struct Bar;"); 583 NumberOfBaseTokens = 9u; 584 585 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 586 ASSERT_EQ(ConstrainedTokens.size(), 587 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 588 << ConstrainedTokens; 589 590 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 591 if (I < NumberOfTokensBeforeRequires) { 592 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 593 } else { 594 EXPECT_EQ(*BaseTokens[I], 595 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 596 << I; 597 } 598 } 599 600 BaseTokens = annotate("template<typename T>\n" 601 "struct Bar {" 602 " T foo();\n" 603 " T bar();\n" 604 "};"); 605 ConstrainedTokens = annotate("template<typename T>\n" 606 " requires Foo<T>\n" 607 "struct Bar {" 608 " T foo();\n" 609 " T bar();\n" 610 "};"); 611 NumberOfBaseTokens = 21u; 612 613 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 614 ASSERT_EQ(ConstrainedTokens.size(), 615 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 616 << ConstrainedTokens; 617 618 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 619 if (I < NumberOfTokensBeforeRequires) { 620 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 621 } else { 622 EXPECT_EQ(*BaseTokens[I], 623 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 624 << I; 625 } 626 } 627 628 BaseTokens = annotate("template<typename T>\n" 629 "Bar(T) -> Bar<T>;"); 630 ConstrainedTokens = annotate("template<typename T>\n" 631 " requires Foo<T>\n" 632 "Bar(T) -> Bar<T>;"); 633 NumberOfBaseTokens = 16u; 634 635 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 636 ASSERT_EQ(ConstrainedTokens.size(), 637 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 638 << ConstrainedTokens; 639 640 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 641 if (I < NumberOfTokensBeforeRequires) { 642 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 643 } else { 644 EXPECT_EQ(*BaseTokens[I], 645 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 646 << I; 647 } 648 } 649 650 BaseTokens = annotate("template<typename T>\n" 651 "T foo();"); 652 ConstrainedTokens = annotate("template<typename T>\n" 653 " requires Foo<T>\n" 654 "T foo();"); 655 NumberOfBaseTokens = 11u; 656 657 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 658 ASSERT_EQ(ConstrainedTokens.size(), 659 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 660 << ConstrainedTokens; 661 662 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 663 if (I < NumberOfTokensBeforeRequires) { 664 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 665 } else { 666 EXPECT_EQ(*BaseTokens[I], 667 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 668 << I; 669 } 670 } 671 672 BaseTokens = annotate("template<typename T>\n" 673 "T foo() {\n" 674 " auto bar = baz();\n" 675 " return bar + T{};\n" 676 "}"); 677 ConstrainedTokens = annotate("template<typename T>\n" 678 " requires Foo<T>\n" 679 "T foo() {\n" 680 " auto bar = baz();\n" 681 " return bar + T{};\n" 682 "}"); 683 NumberOfBaseTokens = 26u; 684 685 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 686 ASSERT_EQ(ConstrainedTokens.size(), 687 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 688 << ConstrainedTokens; 689 690 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 691 if (I < NumberOfTokensBeforeRequires) { 692 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 693 } else { 694 EXPECT_EQ(*BaseTokens[I], 695 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 696 << I; 697 } 698 } 699 700 BaseTokens = annotate("template<typename T>\n" 701 "T foo();"); 702 ConstrainedTokens = annotate("template<typename T>\n" 703 "T foo() requires Foo<T>;"); 704 NumberOfBaseTokens = 11u; 705 NumberOfTokensBeforeRequires = 9u; 706 707 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 708 ASSERT_EQ(ConstrainedTokens.size(), 709 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 710 << ConstrainedTokens; 711 712 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 713 if (I < NumberOfTokensBeforeRequires) { 714 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 715 } else { 716 EXPECT_EQ(*BaseTokens[I], 717 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 718 << I; 719 } 720 } 721 722 BaseTokens = annotate("template<typename T>\n" 723 "T foo() {\n" 724 " auto bar = baz();\n" 725 " return bar + T{};\n" 726 "}"); 727 ConstrainedTokens = annotate("template<typename T>\n" 728 "T foo() requires Foo<T> {\n" 729 " auto bar = baz();\n" 730 " return bar + T{};\n" 731 "}"); 732 NumberOfBaseTokens = 26u; 733 734 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 735 ASSERT_EQ(ConstrainedTokens.size(), 736 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 737 << ConstrainedTokens; 738 739 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 740 if (I < NumberOfTokensBeforeRequires) { 741 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 742 } else { 743 EXPECT_EQ(*BaseTokens[I], 744 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 745 << I; 746 } 747 } 748 749 BaseTokens = annotate("template<typename T>\n" 750 "Bar(T) -> Bar<typename T::I>;"); 751 ConstrainedTokens = annotate("template<typename T>\n" 752 " requires requires(T &&t) {\n" 753 " typename T::I;\n" 754 " }\n" 755 "Bar(T) -> Bar<typename T::I>;"); 756 NumberOfBaseTokens = 19u; 757 NumberOfAdditionalRequiresClauseTokens = 14u; 758 NumberOfTokensBeforeRequires = 5u; 759 760 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 761 ASSERT_EQ(ConstrainedTokens.size(), 762 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 763 << ConstrainedTokens; 764 765 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 766 if (I < NumberOfTokensBeforeRequires) { 767 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 768 } else { 769 EXPECT_EQ(*BaseTokens[I], 770 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 771 << I; 772 } 773 } 774 775 BaseTokens = annotate("struct [[nodiscard]] zero_t {\n" 776 " template<class T>\n" 777 " [[nodiscard]] constexpr operator T() const { " 778 "return number_zero_v<T>; }\n" 779 "};"); 780 781 ConstrainedTokens = annotate("struct [[nodiscard]] zero_t {\n" 782 " template<class T>\n" 783 " requires requires { number_zero_v<T>; }\n" 784 " [[nodiscard]] constexpr operator T() const { " 785 "return number_zero_v<T>; }\n" 786 "};"); 787 NumberOfBaseTokens = 35u; 788 NumberOfAdditionalRequiresClauseTokens = 9u; 789 NumberOfTokensBeforeRequires = 13u; 790 791 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 792 ASSERT_EQ(ConstrainedTokens.size(), 793 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 794 << ConstrainedTokens; 795 796 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 797 if (I < NumberOfTokensBeforeRequires) { 798 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 799 } else { 800 EXPECT_EQ(*BaseTokens[I], 801 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 802 << I; 803 } 804 } 805 806 BaseTokens = annotate("constexpr Foo(Foo const &other)\n" 807 " : value{other.value} {\n" 808 " do_magic();\n" 809 " do_more_magic();\n" 810 "}"); 811 812 ConstrainedTokens = annotate("constexpr Foo(Foo const &other)\n" 813 " requires std::is_copy_constructible<T>\n" 814 " : value{other.value} {\n" 815 " do_magic();\n" 816 " do_more_magic();\n" 817 "}"); 818 819 NumberOfBaseTokens = 26u; 820 NumberOfAdditionalRequiresClauseTokens = 7u; 821 NumberOfTokensBeforeRequires = 8u; 822 823 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 824 ASSERT_EQ(ConstrainedTokens.size(), 825 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 826 << ConstrainedTokens; 827 828 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 829 if (I < NumberOfTokensBeforeRequires) { 830 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 831 } else { 832 EXPECT_EQ(*BaseTokens[I], 833 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 834 << I; 835 } 836 } 837 838 BaseTokens = annotate("constexpr Foo(Foo const &other)\n" 839 " : value{other.value} {\n" 840 " do_magic();\n" 841 " do_more_magic();\n" 842 "}"); 843 844 ConstrainedTokens = annotate("constexpr Foo(Foo const &other)\n" 845 " requires (std::is_copy_constructible<T>)\n" 846 " : value{other.value} {\n" 847 " do_magic();\n" 848 " do_more_magic();\n" 849 "}"); 850 851 NumberOfBaseTokens = 26u; 852 NumberOfAdditionalRequiresClauseTokens = 9u; 853 NumberOfTokensBeforeRequires = 8u; 854 855 ASSERT_EQ(BaseTokens.size(), NumberOfBaseTokens) << BaseTokens; 856 ASSERT_EQ(ConstrainedTokens.size(), 857 NumberOfBaseTokens + NumberOfAdditionalRequiresClauseTokens) 858 << ConstrainedTokens; 859 860 for (auto I = 0u; I < NumberOfBaseTokens; ++I) { 861 if (I < NumberOfTokensBeforeRequires) { 862 EXPECT_EQ(*BaseTokens[I], *ConstrainedTokens[I]) << I; 863 } else { 864 EXPECT_EQ(*BaseTokens[I], 865 *ConstrainedTokens[I + NumberOfAdditionalRequiresClauseTokens]) 866 << I; 867 } 868 } 869 } 870 871 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 872 auto Tokens = annotate("__asm{\n" 873 "a:\n" 874 "};"); 875 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 876 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 877 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 878 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 879 } 880 881 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 882 auto Tokens = annotate("int (^)() = ^ ()\n" 883 " external_source_symbol() { //\n" 884 " return 1;\n" 885 "};"); 886 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 887 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 888 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 889 890 Tokens = annotate("int *p = ^int*(){ //\n" 891 " return nullptr;\n" 892 "}();"); 893 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 894 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 895 } 896 897 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 898 auto Tokens = annotate("[]() constexpr {}"); 899 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 900 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 901 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 902 } 903 904 } // namespace 905 } // namespace format 906 } // namespace clang 907