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_PRECEDENCE(FormatTok, Prec) \ 42 EXPECT_EQ((FormatTok)->getPrecedence(), Prec) << *(FormatTok) 43 #define EXPECT_TOKEN(FormatTok, Kind, Type) \ 44 do { \ 45 EXPECT_TOKEN_KIND(FormatTok, Kind); \ 46 EXPECT_TOKEN_TYPE(FormatTok, Type); \ 47 } while (false) 48 49 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfStarAndAmp) { 50 auto Tokens = annotate("auto x = [](const decltype(x) &ptr) {};"); 51 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 52 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 53 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 54 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 55 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 56 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 57 58 Tokens = annotate("auto x = [](const decltype(x) *ptr) {};"); 59 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 60 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 61 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 62 63 Tokens = annotate("#define lambda [](const decltype(x) &ptr) {}"); 64 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 65 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 66 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 67 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 68 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 69 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 70 71 Tokens = annotate("#define lambda [](const decltype(x) *ptr) {}"); 72 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 73 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 74 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 75 76 Tokens = annotate("void f() {\n" 77 " while (p < a && *p == 'a')\n" 78 " p++;\n" 79 "}"); 80 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 81 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 82 EXPECT_TOKEN(Tokens[11], tok::star, TT_UnaryOperator); 83 84 Tokens = annotate("case *x:"); 85 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 86 EXPECT_TOKEN(Tokens[1], tok::star, TT_UnaryOperator); 87 Tokens = annotate("case &x:"); 88 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 89 EXPECT_TOKEN(Tokens[1], tok::amp, TT_UnaryOperator); 90 91 Tokens = annotate("bool b = 3 == int{3} && true;\n"); 92 EXPECT_EQ(Tokens.size(), 13u) << Tokens; 93 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 94 95 Tokens = annotate("struct {\n" 96 "} *ptr;"); 97 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 98 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 99 Tokens = annotate("union {\n" 100 "} *ptr;"); 101 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 102 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 103 Tokens = annotate("class {\n" 104 "} *ptr;"); 105 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 106 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 107 108 Tokens = annotate("struct {\n" 109 "} &&ptr = {};"); 110 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 111 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 112 Tokens = annotate("union {\n" 113 "} &&ptr = {};"); 114 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 115 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 116 Tokens = annotate("class {\n" 117 "} &&ptr = {};"); 118 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 119 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 120 Tokens = annotate("int i = int{42} * 2;"); 121 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 122 EXPECT_TOKEN(Tokens[7], tok::star, TT_BinaryOperator); 123 124 Tokens = annotate("delete[] *ptr;"); 125 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 126 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 127 Tokens = annotate("delete[] **ptr;"); 128 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 129 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 130 EXPECT_TOKEN(Tokens[4], tok::star, TT_UnaryOperator); 131 Tokens = annotate("delete[] *(ptr);"); 132 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 133 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 134 } 135 136 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 137 auto Tokens = annotate("x - 0"); 138 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 139 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 140 Tokens = annotate("0 + 0"); 141 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 142 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 143 Tokens = annotate("x + +0"); 144 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 145 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 146 Tokens = annotate("x ? -0 : +0"); 147 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 148 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 149 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 150 Tokens = annotate("(-0)"); 151 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 152 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 153 Tokens = annotate("0, -0"); 154 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 155 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 156 Tokens = annotate("for (; -1;) {\n}"); 157 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 158 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 159 Tokens = annotate("x = -1;"); 160 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 161 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 162 Tokens = annotate("x[-1]"); 163 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 164 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 165 Tokens = annotate("x = {-1};"); 166 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 167 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 168 Tokens = annotate("case -x:"); 169 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 170 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 171 Tokens = annotate("co_await -x;"); 172 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 173 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 174 Tokens = annotate("co_return -x;"); 175 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 176 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 177 Tokens = annotate("co_yield -x;"); 178 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 179 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 180 Tokens = annotate("delete -x;"); 181 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 182 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 183 Tokens = annotate("return -x;"); 184 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 185 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 186 Tokens = annotate("throw -x;"); 187 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 188 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 189 Tokens = annotate("sizeof -x"); 190 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 191 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 192 Tokens = annotate("co_await +x;"); 193 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 194 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 195 Tokens = annotate("co_return +x;"); 196 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 197 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 198 Tokens = annotate("co_yield +x;"); 199 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 200 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 201 Tokens = annotate("delete +x;"); 202 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 203 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 204 Tokens = annotate("return +x;"); 205 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 206 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 207 Tokens = annotate("throw +x;"); 208 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 209 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 210 Tokens = annotate("sizeof +x"); 211 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 212 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 213 Tokens = annotate("(int)-x"); 214 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 215 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 216 Tokens = annotate("(-x)"); 217 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 218 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 219 Tokens = annotate("!+x"); 220 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 221 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 222 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 223 } 224 225 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 226 auto Tokens = annotate("class C {};"); 227 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 228 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 229 230 Tokens = annotate("const class C {} c;"); 231 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 232 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 233 234 Tokens = annotate("const class {} c;"); 235 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 236 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 237 } 238 239 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 240 auto Tokens = annotate("struct S {};"); 241 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 242 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 243 } 244 245 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 246 auto Tokens = annotate("union U {};"); 247 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 248 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 249 250 Tokens = annotate("union U { void f() { return; } };"); 251 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 252 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 253 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 254 } 255 256 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 257 auto Tokens = annotate("enum E {};"); 258 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 259 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 260 } 261 262 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 263 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 264 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 265 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 266 267 Tokens = annotate("template <typename T> void F(T) && = delete;"); 268 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 269 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 270 } 271 272 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 273 auto Tokens = 274 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 275 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 276 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 277 } 278 279 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 280 auto Tokens = 281 annotate("template <typename T> " 282 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 283 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 284 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 285 } 286 287 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 288 FormatStyle Style = getLLVMStyle(); 289 Style.WhitespaceSensitiveMacros.push_back("FOO"); 290 291 auto Tokens = annotate("FOO(1+2 )\n", Style); 292 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 293 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 294 295 Tokens = annotate("FOO(a:b:c)\n", Style); 296 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 297 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 298 } 299 300 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 301 auto Tokens = annotate("delete (void *)p;"); 302 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 303 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 304 305 Tokens = annotate("delete[] (void *)p;"); 306 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 307 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 308 309 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 310 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 311 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 312 313 Tokens = annotate("delete[/*comment*/] (void *)p;"); 314 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 315 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 316 317 Tokens = annotate("delete/*comment*/[] (void *)p;"); 318 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 319 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 320 } 321 322 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 323 auto Tokens = annotate("(void)p;"); 324 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 325 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 326 327 Tokens = annotate("auto x = (Foo)p;"); 328 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 329 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 330 331 Tokens = annotate("(std::vector<int>)p;"); 332 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 333 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 334 335 Tokens = annotate("return (Foo)p;"); 336 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 337 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 338 339 Tokens = annotate("throw (Foo)p;"); 340 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 341 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 342 } 343 344 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 345 auto Tokens = annotate("void f() throw(int);"); 346 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 347 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 348 } 349 350 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 351 auto Tokens = annotate("void f() &;"); 352 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 353 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 354 355 Tokens = annotate("void operator=(T) &&;"); 356 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 357 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 358 359 Tokens = annotate("template <typename T> void f() &;"); 360 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 361 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 362 363 Tokens = annotate("template <typename T> void operator=(T) &;"); 364 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 365 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 366 } 367 368 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 369 auto Tokens = annotate("template <typename T>\n" 370 "concept C = (Foo && Bar) && (Bar && Baz);"); 371 372 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 373 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 374 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 375 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 376 377 Tokens = annotate("template <typename T>\n" 378 "concept C = requires(T t) {\n" 379 " { t.foo() };\n" 380 "} && Bar<T> && Baz<T>;"); 381 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 382 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 383 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 384 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 385 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 386 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 387 388 Tokens = annotate("template<typename T>\n" 389 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 390 "struct Foo;"); 391 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 392 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 393 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 394 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 395 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 396 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 397 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 398 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 399 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 400 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 401 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 402 403 Tokens = 404 annotate("template<typename T>\n" 405 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 406 "struct Foo;"); 407 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 408 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 409 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 410 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 411 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 412 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 413 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 414 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 415 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 416 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 417 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 418 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 419 420 Tokens = annotate("template <typename T>\n" 421 "void foo(T) noexcept requires Bar<T>;"); 422 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 423 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 424 425 Tokens = annotate("template <typename T>\n" 426 "struct S {\n" 427 " void foo() const requires Bar<T>;\n" 428 " void bar() const & requires Baz<T>;\n" 429 " void bar() && requires Baz2<T>;\n" 430 " void baz() const & noexcept requires Baz<T>;\n" 431 " void baz() && noexcept requires Baz2<T>;\n" 432 "};\n" 433 "\n" 434 "void S::bar() const & requires Baz<T> { }"); 435 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 436 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 437 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 438 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 439 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 440 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 441 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 442 443 Tokens = annotate("void Class::member() && requires(Constant) {}"); 444 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 445 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 446 447 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 448 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 449 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 450 451 Tokens = 452 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 453 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 454 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 455 456 Tokens = annotate("void Class::member() && requires(typename " 457 "Namespace::Outer<T>::Inner::Constant) {}"); 458 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 459 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 460 461 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 462 " template<class T>\n" 463 " requires requires { number_zero_v<T>; }\n" 464 " [[nodiscard]] constexpr operator T() const { " 465 "return number_zero_v<T>; }\n" 466 "};"); 467 ASSERT_EQ(Tokens.size(), 44u); 468 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 469 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 470 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 471 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 472 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 473 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 474 475 Tokens = 476 annotate("template <class A, class B> concept C =" 477 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 478 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 479 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 480 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 481 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 482 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 483 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 484 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 485 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 486 487 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 488 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 489 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 490 491 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 492 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 493 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 494 495 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 496 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 497 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 498 499 Tokens = 500 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 501 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 502 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 503 504 Tokens = 505 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 506 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 507 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 508 509 Tokens = 510 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 511 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 512 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 513 } 514 515 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 516 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 517 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 518 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 519 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 520 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 521 522 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 523 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 524 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 525 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 526 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 527 528 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 529 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 530 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 531 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 532 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 533 534 Tokens = annotate("foo(requires(const T t) {});"); 535 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 536 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 537 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 538 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 539 540 Tokens = annotate("foo(requires(const int t) {});"); 541 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 542 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 543 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 544 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 545 546 Tokens = annotate("foo(requires(const T t) {});"); 547 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 548 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 549 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 550 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 551 552 Tokens = annotate("foo(requires(int const* volatile t) {});"); 553 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 554 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 555 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 556 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 557 558 Tokens = annotate("foo(requires(T const* volatile t) {});"); 559 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 560 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 561 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 562 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 563 564 Tokens = 565 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 566 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 567 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 568 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 569 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 570 571 Tokens = annotate("template <typename T>\n" 572 "concept C = requires(T T) {\n" 573 " requires Bar<T> && Foo<T>;\n" 574 "};"); 575 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 576 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 577 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 578 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 579 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 580 TT_RequiresClauseInARequiresExpression); 581 582 Tokens = annotate("template <typename T>\n" 583 "concept C = requires(T T) {\n" 584 " { t.func() } -> std::same_as<int>;" 585 " requires Bar<T> && Foo<T>;\n" 586 "};"); 587 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 588 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 589 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 590 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 591 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 592 TT_RequiresClauseInARequiresExpression); 593 594 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 595 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 596 "requires true; };"); 597 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 598 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 599 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 600 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 601 } 602 603 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 604 const char *BaseCode = nullptr; 605 const char *ConstrainedCode = nullptr; 606 auto BaseTokenCount = 0u; 607 auto RequiresTokenCount = 0u; 608 auto PrefixTokenCount = 0u; 609 610 auto TestRequires = [&](int Line) { 611 const auto BaseTokens = annotate(BaseCode); 612 const auto ConstrainedTokens = annotate(ConstrainedCode); 613 614 #define LINE " (Line " << Line << ')' 615 616 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 617 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 618 << LINE; 619 620 for (auto I = 0u; I < BaseTokenCount; ++I) { 621 EXPECT_EQ( 622 *BaseTokens[I], 623 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 624 << I << LINE; 625 } 626 627 #undef LINE 628 }; 629 630 BaseCode = "template<typename T>\n" 631 "T Pi = 3.14;"; 632 ConstrainedCode = "template<typename T>\n" 633 " requires Foo<T>\n" 634 "T Pi = 3.14;"; 635 BaseTokenCount = 11; 636 RequiresTokenCount = 5; 637 PrefixTokenCount = 5; 638 TestRequires(__LINE__); 639 640 BaseCode = "template<typename T>\n" 641 "struct Bar;"; 642 ConstrainedCode = "template<typename T>\n" 643 " requires Foo<T>\n" 644 "struct Bar;"; 645 BaseTokenCount = 9; 646 TestRequires(__LINE__); 647 648 BaseCode = "template<typename T>\n" 649 "struct Bar {\n" 650 " T foo();\n" 651 " T bar();\n" 652 "};"; 653 ConstrainedCode = "template<typename T>\n" 654 " requires Foo<T>\n" 655 "struct Bar {\n" 656 " T foo();\n" 657 " T bar();\n" 658 "};"; 659 BaseTokenCount = 21; 660 TestRequires(__LINE__); 661 662 BaseCode = "template<typename T>\n" 663 "Bar(T) -> Bar<T>;"; 664 ConstrainedCode = "template<typename T>\n" 665 " requires Foo<T>\n" 666 "Bar(T) -> Bar<T>;"; 667 BaseTokenCount = 16; 668 TestRequires(__LINE__); 669 670 BaseCode = "template<typename T>\n" 671 "T foo();"; 672 ConstrainedCode = "template<typename T>\n" 673 " requires Foo<T>\n" 674 "T foo();"; 675 BaseTokenCount = 11; 676 TestRequires(__LINE__); 677 678 BaseCode = "template<typename T>\n" 679 "T foo() {\n" 680 " auto bar = baz();\n" 681 " return bar + T{};\n" 682 "}"; 683 ConstrainedCode = "template<typename T>\n" 684 " requires Foo<T>\n" 685 "T foo() {\n" 686 " auto bar = baz();\n" 687 " return bar + T{};\n" 688 "}"; 689 BaseTokenCount = 26; 690 TestRequires(__LINE__); 691 692 BaseCode = "template<typename T>\n" 693 "T foo();"; 694 ConstrainedCode = "template<typename T>\n" 695 "T foo() requires Foo<T>;"; 696 BaseTokenCount = 11; 697 PrefixTokenCount = 9; 698 TestRequires(__LINE__); 699 700 BaseCode = "template<typename T>\n" 701 "T foo() {\n" 702 " auto bar = baz();\n" 703 " return bar + T{};\n" 704 "}"; 705 ConstrainedCode = "template<typename T>\n" 706 "T foo() requires Foo<T> {\n" 707 " auto bar = baz();\n" 708 " return bar + T{};\n" 709 "}"; 710 BaseTokenCount = 26; 711 TestRequires(__LINE__); 712 713 BaseCode = "template<typename T>\n" 714 "Bar(T) -> Bar<typename T::I>;"; 715 ConstrainedCode = "template<typename T>\n" 716 " requires requires(T &&t) {\n" 717 " typename T::I;\n" 718 " }\n" 719 "Bar(T) -> Bar<typename T::I>;"; 720 BaseTokenCount = 19; 721 RequiresTokenCount = 14; 722 PrefixTokenCount = 5; 723 TestRequires(__LINE__); 724 725 BaseCode = "struct [[nodiscard]] zero_t {\n" 726 " template<class T>\n" 727 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 728 "};"; 729 ConstrainedCode = 730 "struct [[nodiscard]] zero_t {\n" 731 " template<class T>\n" 732 " requires requires { v<T>; }\n" 733 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 734 "};"; 735 BaseTokenCount = 35; 736 RequiresTokenCount = 9; 737 PrefixTokenCount = 13; 738 TestRequires(__LINE__); 739 740 BaseCode = "constexpr Foo(Foo const &other)\n" 741 " : value{other.value} {\n" 742 " do_magic();\n" 743 " do_more_magic();\n" 744 "}"; 745 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 746 " requires std::is_copy_constructible<T>\n" 747 " : value{other.value} {\n" 748 " do_magic();\n" 749 " do_more_magic();\n" 750 "}"; 751 BaseTokenCount = 26; 752 RequiresTokenCount = 7; 753 PrefixTokenCount = 8; 754 TestRequires(__LINE__); 755 756 BaseCode = "constexpr Foo(Foo const &other)\n" 757 " : value{other.value} {\n" 758 " do_magic();\n" 759 " do_more_magic();\n" 760 "}"; 761 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 762 " requires (std::is_copy_constructible<T>)\n" 763 " : value{other.value} {\n" 764 " do_magic();\n" 765 " do_more_magic();\n" 766 "}"; 767 RequiresTokenCount = 9; 768 TestRequires(__LINE__); 769 } 770 771 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 772 auto Tokens = annotate("__asm{\n" 773 "a:\n" 774 "};"); 775 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 776 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 777 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 778 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 779 } 780 781 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 782 auto Tokens = annotate("int (^)() = ^ ()\n" 783 " external_source_symbol() { //\n" 784 " return 1;\n" 785 "};"); 786 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 787 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 788 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 789 790 Tokens = annotate("int *p = ^int*(){ //\n" 791 " return nullptr;\n" 792 "}();"); 793 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 794 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 795 } 796 797 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 798 auto Tokens = annotate("[]() constexpr {}"); 799 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 800 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 801 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 802 803 Tokens = annotate("[]() -> auto {}"); 804 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 805 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 806 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 807 808 Tokens = annotate("[]() -> auto & {}"); 809 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 810 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 811 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 812 813 Tokens = annotate("[]() -> auto * {}"); 814 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 815 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 816 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 817 } 818 819 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 820 auto Tokens = annotate("template <typename T>\n" 821 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 822 "string OldFunction(const string ¶meter) {}"); 823 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 824 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 825 826 Tokens = annotate("template <typename T>\n" 827 "A(T) noexcept;"); 828 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 829 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 830 } 831 832 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 833 auto Annotate = [this](llvm::StringRef Code) { 834 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 835 }; 836 // Test that unary operators get labeled as such and that operators like '++' 837 // don't get split. 838 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 839 tok::tilde, tok::amp, tok::pipe, 840 tok::caret, tok::plusplus, tok::minusminus}; 841 for (auto Kind : Unary) { 842 auto Tokens = 843 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 844 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 845 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 846 } 847 // Operators formed by joining two operators like '^~'. For some of these 848 // joined operators, we don't have a separate type, so we only test for their 849 // precedence. 850 std::pair<prec::Level, std::string> JoinedBinary[] = { 851 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 852 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 853 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 854 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 855 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 856 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 857 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 858 {prec::Equality, "=="}, {prec::Equality, "!="}, 859 {prec::Equality, "==="}, {prec::Equality, "!=="}, 860 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 861 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 862 }; 863 for (auto Operator : JoinedBinary) { 864 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 865 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 866 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 867 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 868 } 869 // '~^' and '^~' can be unary as well as binary operators. 870 auto Tokens = Annotate("x = ~^x;"); 871 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 872 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 873 Tokens = Annotate("x = ^~x;"); 874 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 875 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 876 // The unary operators '~&' and '~|' can only be unary operators. The current 877 // implementation treats each of them as separate unary '~' and '&' or '|' 878 // operators, which is enough for formatting purposes. In FormatTestVerilog, 879 // there is a test that there is no space in between. And even if a new line 880 // is inserted between the '~' and '|', the semantic meaning is the same as 881 // the joined operator, so the CanBreakBefore property doesn't need to be 882 // false for the second operator. 883 Tokens = Annotate("x = ~&x;"); 884 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 885 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 886 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 887 Tokens = Annotate("x = ~|x;"); 888 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 889 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 890 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 891 // Test for block label colons. 892 Tokens = Annotate("begin : x\n" 893 "end : x"); 894 ASSERT_EQ(Tokens.size(), 7u); 895 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 896 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 897 // Test that the dimension colon is annotated correctly. 898 Tokens = Annotate("var [1 : 0] x;"); 899 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 900 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 901 Tokens = Annotate("extern function [1 : 0] x;"); 902 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 903 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 904 // Test case labels and ternary operators. 905 Tokens = Annotate("case (x)\n" 906 " x:\n" 907 " x;\n" 908 "endcase\n"); 909 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 910 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GotoLabelColon); 911 Tokens = Annotate("case (x)\n" 912 " x ? x : x:\n" 913 " x;\n" 914 "endcase\n"); 915 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 916 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 917 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 918 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GotoLabelColon); 919 } 920 921 } // namespace 922 } // namespace format 923 } // namespace clang 924