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 Tokens = annotate("void f() { void (*fnptr)(char* foo); }"); 136 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 137 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 138 // FIXME: The star of a function pointer probably makes more sense as 139 // TT_PointerOrReference. 140 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 141 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 142 143 Tokens = annotate("void f() { void (*fnptr)(t* foo); }"); 144 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 145 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 146 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 147 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 148 149 Tokens = annotate("if (Foo * Bar / Test)"); 150 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 151 EXPECT_TOKEN(Tokens[3], tok::star, TT_BinaryOperator); 152 153 Tokens = annotate("if (Class* obj {getObj()})"); 154 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 155 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 156 157 Tokens = annotate("if (Foo* Bar = getObj())"); 158 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 159 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 160 161 Tokens = annotate("int f3() { return sizeof(Foo&); }"); 162 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 163 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 164 165 Tokens = annotate("int f4() { return sizeof(Foo&&); }"); 166 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 167 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 168 169 Tokens = annotate("void f5() { int f6(Foo&, Bar&); }"); 170 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 171 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 172 EXPECT_TOKEN(Tokens[12], tok::amp, TT_PointerOrReference); 173 174 Tokens = annotate("void f7() { int f8(Foo&&, Bar&&); }"); 175 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 176 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 177 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_PointerOrReference); 178 179 Tokens = annotate("Type1 &val1 = val2;"); 180 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 181 EXPECT_TOKEN(Tokens[1], tok::amp, TT_PointerOrReference); 182 183 Tokens = annotate("Type1 *val1 = &val2;"); 184 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 185 EXPECT_TOKEN(Tokens[1], tok::star, TT_PointerOrReference); 186 EXPECT_TOKEN(Tokens[4], tok::amp, TT_UnaryOperator); 187 188 Tokens = annotate("val1 & val2;"); 189 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 190 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 191 192 Tokens = annotate("val1 & val2.member;"); 193 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 194 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 195 196 Tokens = annotate("val1 & val2.*member;"); 197 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 198 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 199 200 Tokens = annotate("val1.*member & val2;"); 201 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 202 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 203 204 Tokens = annotate("val1 & val2->*member;"); 205 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 206 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 207 208 Tokens = annotate("val1->member & val2;"); 209 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 210 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 211 212 Tokens = annotate("val1 & val2 & val3;"); 213 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 214 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 215 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 216 217 Tokens = annotate("val1 & val2 // comment\n" 218 " & val3;"); 219 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 220 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 221 EXPECT_TOKEN(Tokens[4], tok::amp, TT_BinaryOperator); 222 223 Tokens = 224 annotate("val1 & val2.member & val3.member() & val4 & val5->member;"); 225 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 226 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 227 EXPECT_TOKEN(Tokens[5], tok::amp, TT_BinaryOperator); 228 EXPECT_TOKEN(Tokens[11], tok::amp, TT_BinaryOperator); 229 EXPECT_TOKEN(Tokens[13], tok::amp, TT_BinaryOperator); 230 231 Tokens = annotate("class c {\n" 232 " void func(type &a) { a & member; }\n" 233 " anotherType &member;\n" 234 "}"); 235 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 236 EXPECT_TOKEN(Tokens[7], tok::amp, TT_PointerOrReference); 237 EXPECT_TOKEN(Tokens[12], tok::amp, TT_BinaryOperator); 238 EXPECT_TOKEN(Tokens[17], tok::amp, TT_PointerOrReference); 239 240 Tokens = annotate("struct S {\n" 241 " auto Mem = C & D;\n" 242 "}"); 243 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 244 EXPECT_TOKEN(Tokens[7], tok::amp, TT_BinaryOperator); 245 } 246 247 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 248 auto Tokens = annotate("x - 0"); 249 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 250 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 251 Tokens = annotate("0 + 0"); 252 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 253 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 254 Tokens = annotate("x + +0"); 255 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 256 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 257 Tokens = annotate("x ? -0 : +0"); 258 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 259 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 260 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 261 Tokens = annotate("(-0)"); 262 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 263 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 264 Tokens = annotate("0, -0"); 265 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 266 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 267 Tokens = annotate("for (; -1;) {\n}"); 268 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 269 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 270 Tokens = annotate("x = -1;"); 271 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 272 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 273 Tokens = annotate("x[-1]"); 274 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 275 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 276 Tokens = annotate("x = {-1};"); 277 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 278 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 279 Tokens = annotate("case -x:"); 280 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 281 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 282 Tokens = annotate("co_await -x;"); 283 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 284 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 285 Tokens = annotate("co_return -x;"); 286 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 287 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 288 Tokens = annotate("co_yield -x;"); 289 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 290 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 291 Tokens = annotate("delete -x;"); 292 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 293 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 294 Tokens = annotate("return -x;"); 295 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 296 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 297 Tokens = annotate("throw -x;"); 298 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 299 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 300 Tokens = annotate("sizeof -x"); 301 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 302 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 303 Tokens = annotate("co_await +x;"); 304 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 305 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 306 Tokens = annotate("co_return +x;"); 307 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 308 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 309 Tokens = annotate("co_yield +x;"); 310 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 311 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 312 Tokens = annotate("delete +x;"); 313 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 314 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 315 Tokens = annotate("return +x;"); 316 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 317 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 318 Tokens = annotate("throw +x;"); 319 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 320 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 321 Tokens = annotate("sizeof +x"); 322 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 323 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 324 Tokens = annotate("(int)-x"); 325 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 326 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 327 Tokens = annotate("(-x)"); 328 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 329 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 330 Tokens = annotate("!+x"); 331 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 332 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 333 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 334 } 335 336 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 337 auto Tokens = annotate("class C {};"); 338 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 339 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 340 341 Tokens = annotate("const class C {} c;"); 342 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 343 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 344 345 Tokens = annotate("const class {} c;"); 346 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 347 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 348 } 349 350 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 351 auto Tokens = annotate("struct S {};"); 352 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 353 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 354 } 355 356 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 357 auto Tokens = annotate("union U {};"); 358 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 359 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 360 361 Tokens = annotate("union U { void f() { return; } };"); 362 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 363 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 364 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 365 } 366 367 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 368 auto Tokens = annotate("enum E {};"); 369 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 370 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 371 } 372 373 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 374 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 375 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 376 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 377 378 Tokens = annotate("template <typename T> void F(T) && = delete;"); 379 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 380 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 381 } 382 383 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 384 auto Tokens = 385 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 386 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 387 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 388 } 389 390 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 391 auto Tokens = 392 annotate("template <typename T> " 393 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 394 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 395 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 396 } 397 398 TEST_F(TokenAnnotatorTest, UnderstandsTemplatesInMacros) { 399 auto Tokens = 400 annotate("#define FOO(typeName) \\\n" 401 " { #typeName, foo<FooType>(new foo<realClass>(#typeName)) }"); 402 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 403 EXPECT_TOKEN(Tokens[11], tok::less, TT_TemplateOpener); 404 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 405 EXPECT_TOKEN(Tokens[17], tok::less, TT_TemplateOpener); 406 EXPECT_TOKEN(Tokens[19], tok::greater, TT_TemplateCloser); 407 } 408 409 TEST_F(TokenAnnotatorTest, UnderstandsGreaterAfterTemplateCloser) { 410 auto Tokens = annotate("if (std::tuple_size_v<T> > 0)"); 411 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 412 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 413 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 414 EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator); 415 } 416 417 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 418 FormatStyle Style = getLLVMStyle(); 419 Style.WhitespaceSensitiveMacros.push_back("FOO"); 420 421 auto Tokens = annotate("FOO(1+2 )\n", Style); 422 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 423 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 424 425 Tokens = annotate("FOO(a:b:c)\n", Style); 426 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 427 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 428 } 429 430 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 431 auto Tokens = annotate("delete (void *)p;"); 432 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 433 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 434 435 Tokens = annotate("delete[] (void *)p;"); 436 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 437 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 438 439 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 440 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 441 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 442 443 Tokens = annotate("delete[/*comment*/] (void *)p;"); 444 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 445 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 446 447 Tokens = annotate("delete/*comment*/[] (void *)p;"); 448 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 449 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 450 } 451 452 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 453 auto Tokens = annotate("(void)p;"); 454 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 455 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 456 457 Tokens = annotate("auto x = (Foo)p;"); 458 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 459 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 460 461 Tokens = annotate("(std::vector<int>)p;"); 462 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 463 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 464 465 Tokens = annotate("return (Foo)p;"); 466 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 467 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 468 469 Tokens = annotate("throw (Foo)p;"); 470 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 471 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 472 } 473 474 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 475 auto Tokens = annotate("void f() throw(int);"); 476 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 477 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 478 } 479 480 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 481 auto Tokens = annotate("void f() &;"); 482 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 483 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 484 485 Tokens = annotate("void operator=(T) &&;"); 486 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 487 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 488 489 Tokens = annotate("template <typename T> void f() &;"); 490 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 491 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 492 493 Tokens = annotate("template <typename T> void operator=(T) &;"); 494 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 495 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 496 } 497 498 TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) { 499 auto Tokens = annotate("x.operator+()"); 500 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 501 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 502 EXPECT_TOKEN(Tokens[3], tok::plus, TT_OverloadedOperator); 503 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 504 Tokens = annotate("x.operator=()"); 505 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 506 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 507 EXPECT_TOKEN(Tokens[3], tok::equal, TT_OverloadedOperator); 508 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 509 Tokens = annotate("x.operator+=()"); 510 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 511 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 512 EXPECT_TOKEN(Tokens[3], tok::plusequal, TT_OverloadedOperator); 513 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 514 Tokens = annotate("x.operator,()"); 515 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 516 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 517 EXPECT_TOKEN(Tokens[3], tok::comma, TT_OverloadedOperator); 518 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 519 Tokens = annotate("x.operator()()"); 520 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 521 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 522 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperator); 523 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_OverloadedOperator); 524 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 525 Tokens = annotate("x.operator[]()"); 526 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 527 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 528 // EXPECT_TOKEN(Tokens[3], tok::l_square, TT_OverloadedOperator); 529 // EXPECT_TOKEN(Tokens[4], tok::r_square, TT_OverloadedOperator); 530 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 531 Tokens = annotate("x.operator\"\"_a()"); 532 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 533 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 534 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 535 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 536 Tokens = annotate("x.operator\"\" _a()"); 537 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 538 // FIXME 539 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 540 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 541 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 542 Tokens = annotate("x.operator\"\"if()"); 543 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 544 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 545 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 546 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 547 Tokens = annotate("x.operator\"\"s()"); 548 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 549 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 550 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 551 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 552 Tokens = annotate("x.operator\"\" s()"); 553 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 554 // FIXME 555 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 556 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 557 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 558 559 Tokens = annotate("int operator+(int);"); 560 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 561 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 562 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 563 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 564 Tokens = annotate("auto operator=(T&) {}"); 565 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 566 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 567 EXPECT_TOKEN(Tokens[2], tok::equal, TT_OverloadedOperator); 568 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 569 Tokens = annotate("auto operator()() {}"); 570 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 571 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 572 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_OverloadedOperator); 573 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_OverloadedOperator); 574 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 575 } 576 577 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 578 struct { 579 const char *Text; 580 tok::TokenKind Kind; 581 } Operators[] = {{"+", tok::plus}, 582 {"-", tok::minus}, 583 // FIXME: 584 // {"*", tok::star}, 585 {"/", tok::slash}, 586 {"%", tok::percent}, 587 {"^", tok::caret}, 588 // FIXME: 589 // {"&", tok::amp}, 590 {"|", tok::pipe}, 591 {"~", tok::tilde}, 592 {"!", tok::exclaim}, 593 {"=", tok::equal}, 594 // FIXME: 595 // {"<", tok::less}, 596 {">", tok::greater}, 597 {"+=", tok::plusequal}, 598 {"-=", tok::minusequal}, 599 {"*=", tok::starequal}, 600 {"/=", tok::slashequal}, 601 {"%=", tok::percentequal}, 602 {"^=", tok::caretequal}, 603 {"&=", tok::ampequal}, 604 {"|=", tok::pipeequal}, 605 {"<<", tok::lessless}, 606 {">>", tok::greatergreater}, 607 {">>=", tok::greatergreaterequal}, 608 {"<<=", tok::lesslessequal}, 609 {"==", tok::equalequal}, 610 {"!=", tok::exclaimequal}, 611 {"<=", tok::lessequal}, 612 {">=", tok::greaterequal}, 613 {"<=>", tok::spaceship}, 614 {"&&", tok::ampamp}, 615 {"||", tok::pipepipe}, 616 {"++", tok::plusplus}, 617 {"--", tok::minusminus}, 618 {",", tok::comma}, 619 {"->*", tok::arrowstar}, 620 {"->", tok::arrow}}; 621 622 for (const auto &Operator : Operators) { 623 std::string Input("C<&operator"); 624 Input += Operator.Text; 625 Input += " > a;"; 626 auto Tokens = annotate(std::string(Input)); 627 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 628 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 629 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 630 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 631 } 632 633 auto Tokens = annotate("C<&operator< <X>> lt;"); 634 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 635 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 636 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 637 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 638 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 639 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 640 } 641 642 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 643 auto Tokens = annotate("template <typename T>\n" 644 "concept C = (Foo && Bar) && (Bar && Baz);"); 645 646 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 647 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 648 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 649 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 650 651 Tokens = annotate("template <typename T>\n" 652 "concept C = Foo && !Bar;"); 653 654 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 655 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 656 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 657 658 Tokens = annotate("template <typename T>\n" 659 "concept C = requires(T t) {\n" 660 " { t.foo() };\n" 661 "} && Bar<T> && Baz<T>;"); 662 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 663 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 664 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 665 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 666 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 667 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 668 669 Tokens = annotate("template<typename T>\n" 670 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 671 "struct Foo;"); 672 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 673 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 674 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 675 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 676 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 677 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 678 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 679 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 680 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 681 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 682 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 683 684 Tokens = 685 annotate("template<typename T>\n" 686 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 687 "struct Foo;"); 688 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 689 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 690 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 691 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 692 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 693 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 694 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 695 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 696 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 697 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 698 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 699 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 700 701 Tokens = annotate("template <typename T>\n" 702 "void foo(T) noexcept requires Bar<T>;"); 703 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 704 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 705 706 Tokens = annotate("template <typename T>\n" 707 "requires Bar<T> || Baz<T>\n" 708 "auto foo(T) -> int;"); 709 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 710 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 711 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 712 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 713 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 714 715 Tokens = annotate("template <typename T>\n" 716 "requires Bar<T>\n" 717 "bool foo(T) { return false; }"); 718 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 719 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 720 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 721 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 722 723 Tokens = annotate("template <typename T>\n" 724 "requires Bar<T>\n" 725 "decltype(auto) foo(T) { return false; }"); 726 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 727 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 728 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 729 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 730 731 Tokens = annotate("template <typename T>\n" 732 "struct S {\n" 733 " void foo() const requires Bar<T>;\n" 734 " void bar() const & requires Baz<T>;\n" 735 " void bar() && requires Baz2<T>;\n" 736 " void baz() const & noexcept requires Baz<T>;\n" 737 " void baz() && noexcept requires Baz2<T>;\n" 738 "};\n" 739 "\n" 740 "void S::bar() const & requires Baz<T> { }"); 741 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 742 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 743 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 744 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 745 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 746 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 747 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 748 749 Tokens = annotate("void Class::member() && requires(Constant) {}"); 750 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 751 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 752 753 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 754 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 755 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 756 757 Tokens = 758 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 759 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 760 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 761 762 Tokens = annotate("void Class::member() && requires(typename " 763 "Namespace::Outer<T>::Inner::Constant) {}"); 764 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 765 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 766 767 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 768 " template<class T>\n" 769 " requires requires { number_zero_v<T>; }\n" 770 " [[nodiscard]] constexpr operator T() const { " 771 "return number_zero_v<T>; }\n" 772 "};"); 773 ASSERT_EQ(Tokens.size(), 44u); 774 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 775 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 776 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 777 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 778 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 779 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 780 781 Tokens = 782 annotate("template <class A, class B> concept C =" 783 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 784 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 785 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 786 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 787 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 788 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 789 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 790 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 791 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 792 793 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 794 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 795 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 796 797 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 798 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 799 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 800 801 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 802 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 803 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 804 805 Tokens = 806 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 807 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 808 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 809 810 Tokens = 811 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 812 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 813 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 814 815 Tokens = 816 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 817 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 818 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 819 } 820 821 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 822 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 823 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 824 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 825 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 826 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 827 828 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 829 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 830 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 831 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 832 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 833 834 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 835 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 836 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 837 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 838 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 839 840 Tokens = annotate("foo(requires(const T t) {});"); 841 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 842 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 843 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 844 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 845 846 Tokens = annotate("foo(requires(const int t) {});"); 847 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 848 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 849 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 850 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 851 852 Tokens = annotate("foo(requires(const T t) {});"); 853 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 854 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 855 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 856 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 857 858 Tokens = annotate("foo(requires(int const* volatile t) {});"); 859 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 860 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 861 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 862 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 863 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 864 865 Tokens = annotate("foo(requires(T const* volatile t) {});"); 866 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 867 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 868 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 869 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 870 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 871 872 Tokens = annotate("foo(requires(T& t) {});"); 873 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 874 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 875 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 876 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 877 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 878 879 Tokens = annotate("foo(requires(T&& t) {});"); 880 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 881 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 882 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 883 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 884 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 885 886 Tokens = annotate("bool foo = requires(T& t) {};"); 887 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 888 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 889 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 890 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 891 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 892 893 Tokens = annotate("bool foo = requires(T&& t) {};"); 894 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 895 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 896 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 897 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 898 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 899 900 Tokens = 901 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 902 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 903 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 904 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 905 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 906 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 907 908 Tokens = annotate("template <typename T>\n" 909 "concept C = requires(T T) {\n" 910 " requires Bar<T> && Foo<T>;\n" 911 "};"); 912 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 913 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 914 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 915 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 916 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 917 TT_RequiresClauseInARequiresExpression); 918 919 Tokens = annotate("template <typename T>\n" 920 "concept C = requires(T T) {\n" 921 " { t.func() } -> std::same_as<int>;" 922 " requires Bar<T> && Foo<T>;\n" 923 "};"); 924 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 925 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 926 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 927 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 928 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 929 TT_RequiresClauseInARequiresExpression); 930 931 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 932 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 933 "requires true; };"); 934 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 935 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 936 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 937 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 938 } 939 940 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 941 // Everything after #pragma region should be ImplicitStringLiteral 942 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 943 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 944 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 945 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 946 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 947 948 // Make sure it's annotated correctly inside a function as well 949 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 950 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 951 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 952 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 953 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 954 } 955 956 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 957 const char *BaseCode = nullptr; 958 const char *ConstrainedCode = nullptr; 959 auto BaseTokenCount = 0u; 960 auto RequiresTokenCount = 0u; 961 auto PrefixTokenCount = 0u; 962 963 auto TestRequires = [&](int Line) { 964 const auto BaseTokens = annotate(BaseCode); 965 const auto ConstrainedTokens = annotate(ConstrainedCode); 966 967 #define LINE " (Line " << Line << ')' 968 969 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 970 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 971 << LINE; 972 973 for (auto I = 0u; I < BaseTokenCount; ++I) { 974 EXPECT_EQ( 975 *BaseTokens[I], 976 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 977 << I << LINE; 978 } 979 980 #undef LINE 981 }; 982 983 BaseCode = "template<typename T>\n" 984 "T Pi = 3.14;"; 985 ConstrainedCode = "template<typename T>\n" 986 " requires Foo<T>\n" 987 "T Pi = 3.14;"; 988 BaseTokenCount = 11; 989 RequiresTokenCount = 5; 990 PrefixTokenCount = 5; 991 TestRequires(__LINE__); 992 993 BaseCode = "template<typename T>\n" 994 "struct Bar;"; 995 ConstrainedCode = "template<typename T>\n" 996 " requires Foo<T>\n" 997 "struct Bar;"; 998 BaseTokenCount = 9; 999 TestRequires(__LINE__); 1000 1001 BaseCode = "template<typename T>\n" 1002 "struct Bar {\n" 1003 " T foo();\n" 1004 " T bar();\n" 1005 "};"; 1006 ConstrainedCode = "template<typename T>\n" 1007 " requires Foo<T>\n" 1008 "struct Bar {\n" 1009 " T foo();\n" 1010 " T bar();\n" 1011 "};"; 1012 BaseTokenCount = 21; 1013 TestRequires(__LINE__); 1014 1015 BaseCode = "template<typename T>\n" 1016 "Bar(T) -> Bar<T>;"; 1017 ConstrainedCode = "template<typename T>\n" 1018 " requires Foo<T>\n" 1019 "Bar(T) -> Bar<T>;"; 1020 BaseTokenCount = 16; 1021 TestRequires(__LINE__); 1022 1023 BaseCode = "template<typename T>\n" 1024 "T foo();"; 1025 ConstrainedCode = "template<typename T>\n" 1026 " requires Foo<T>\n" 1027 "T foo();"; 1028 BaseTokenCount = 11; 1029 TestRequires(__LINE__); 1030 1031 BaseCode = "template<typename T>\n" 1032 "T foo() {\n" 1033 " auto bar = baz();\n" 1034 " return bar + T{};\n" 1035 "}"; 1036 ConstrainedCode = "template<typename T>\n" 1037 " requires Foo<T>\n" 1038 "T foo() {\n" 1039 " auto bar = baz();\n" 1040 " return bar + T{};\n" 1041 "}"; 1042 BaseTokenCount = 26; 1043 TestRequires(__LINE__); 1044 1045 BaseCode = "template<typename T>\n" 1046 "T foo();"; 1047 ConstrainedCode = "template<typename T>\n" 1048 "T foo() requires Foo<T>;"; 1049 BaseTokenCount = 11; 1050 PrefixTokenCount = 9; 1051 TestRequires(__LINE__); 1052 1053 BaseCode = "template<typename T>\n" 1054 "T foo() {\n" 1055 " auto bar = baz();\n" 1056 " return bar + T{};\n" 1057 "}"; 1058 ConstrainedCode = "template<typename T>\n" 1059 "T foo() requires Foo<T> {\n" 1060 " auto bar = baz();\n" 1061 " return bar + T{};\n" 1062 "}"; 1063 BaseTokenCount = 26; 1064 TestRequires(__LINE__); 1065 1066 BaseCode = "template<typename T>\n" 1067 "T foo();"; 1068 ConstrainedCode = "template<typename T>\n" 1069 " requires(Foo<T>)\n" 1070 "T foo();"; 1071 BaseTokenCount = 11; 1072 RequiresTokenCount = 7; 1073 PrefixTokenCount = 5; 1074 TestRequires(__LINE__); 1075 1076 BaseCode = "template<typename T>\n" 1077 "Bar(T) -> Bar<typename T::I>;"; 1078 ConstrainedCode = "template<typename T>\n" 1079 " requires requires(T &&t) {\n" 1080 " typename T::I;\n" 1081 " }\n" 1082 "Bar(T) -> Bar<typename T::I>;"; 1083 BaseTokenCount = 19; 1084 RequiresTokenCount = 14; 1085 PrefixTokenCount = 5; 1086 TestRequires(__LINE__); 1087 1088 BaseCode = "struct [[nodiscard]] zero_t {\n" 1089 " template<class T>\n" 1090 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1091 "};"; 1092 ConstrainedCode = 1093 "struct [[nodiscard]] zero_t {\n" 1094 " template<class T>\n" 1095 " requires requires { v<T>; }\n" 1096 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1097 "};"; 1098 BaseTokenCount = 35; 1099 RequiresTokenCount = 9; 1100 PrefixTokenCount = 13; 1101 TestRequires(__LINE__); 1102 1103 BaseCode = "constexpr Foo(Foo const &other)\n" 1104 " : value{other.value} {\n" 1105 " do_magic();\n" 1106 " do_more_magic();\n" 1107 "}"; 1108 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1109 " requires std::is_copy_constructible<T>\n" 1110 " : value{other.value} {\n" 1111 " do_magic();\n" 1112 " do_more_magic();\n" 1113 "}"; 1114 BaseTokenCount = 26; 1115 RequiresTokenCount = 7; 1116 PrefixTokenCount = 8; 1117 TestRequires(__LINE__); 1118 1119 BaseCode = "constexpr Foo(Foo const &other)\n" 1120 " : value{other.value} {\n" 1121 " do_magic();\n" 1122 " do_more_magic();\n" 1123 "}"; 1124 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1125 " requires (std::is_copy_constructible<T>)\n" 1126 " : value{other.value} {\n" 1127 " do_magic();\n" 1128 " do_more_magic();\n" 1129 "}"; 1130 RequiresTokenCount = 9; 1131 TestRequires(__LINE__); 1132 } 1133 1134 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1135 auto Tokens = annotate("__asm{\n" 1136 "a:\n" 1137 "};"); 1138 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1139 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1140 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1141 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1142 } 1143 1144 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1145 auto Tokens = annotate("int (^)() = ^ ()\n" 1146 " external_source_symbol() { //\n" 1147 " return 1;\n" 1148 "};"); 1149 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1150 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1151 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1152 1153 Tokens = annotate("int *p = ^int*(){ //\n" 1154 " return nullptr;\n" 1155 "}();"); 1156 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1157 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1158 } 1159 1160 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1161 auto Tokens = annotate("[]() constexpr {}"); 1162 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1163 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1164 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1165 1166 Tokens = annotate("[]() consteval {}"); 1167 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1168 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1169 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1170 1171 Tokens = annotate("[]() mutable {}"); 1172 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1173 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1174 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1175 1176 Tokens = annotate("[]() static {}"); 1177 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1178 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1179 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1180 1181 Tokens = annotate("[]() -> auto {}"); 1182 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1183 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1184 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1185 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1186 1187 Tokens = annotate("[]() -> auto & {}"); 1188 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1189 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1190 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1191 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1192 1193 Tokens = annotate("[]() -> auto * {}"); 1194 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1195 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1196 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1197 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1198 1199 Tokens = annotate("[] {}"); 1200 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1201 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1202 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1203 1204 Tokens = annotate("[] noexcept {}"); 1205 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1206 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1207 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1208 1209 Tokens = annotate("[] -> auto {}"); 1210 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1211 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1212 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1213 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1214 1215 Tokens = annotate("[] <typename T> () {}"); 1216 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1217 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1218 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1219 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1220 1221 Tokens = annotate("[] <typename T> {}"); 1222 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1223 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1224 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1225 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1226 1227 Tokens = annotate("[] <typename... T> () {}"); 1228 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1229 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1230 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1231 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1232 1233 Tokens = annotate("[] <typename... T> {}"); 1234 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1235 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1236 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1237 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1238 1239 Tokens = annotate("[] <int... T> () {}"); 1240 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1241 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1242 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1243 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1244 1245 Tokens = annotate("[] <int... T> {}"); 1246 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1247 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1248 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1249 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1250 1251 Tokens = annotate("[] <Foo... T> () {}"); 1252 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1253 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1254 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1255 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1256 1257 Tokens = annotate("[] <Foo... T> {}"); 1258 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1259 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1260 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1261 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1262 } 1263 1264 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1265 auto Tokens = annotate("template <typename T>\n" 1266 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1267 "string OldFunction(const string ¶meter) {}"); 1268 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1269 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1270 1271 Tokens = annotate("template <typename T>\n" 1272 "A(T) noexcept;"); 1273 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1274 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1275 } 1276 1277 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1278 auto Tokens = annotate("void f [[noreturn]] ();"); 1279 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1280 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1281 1282 Tokens = annotate("void f [[noreturn]] () {}"); 1283 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1284 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1285 } 1286 1287 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1288 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1289 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1290 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1291 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1292 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1293 } 1294 1295 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1296 auto Annotate = [this](llvm::StringRef Code) { 1297 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1298 }; 1299 // Test that unary operators get labeled as such and that operators like '++' 1300 // don't get split. 1301 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1302 tok::tilde, tok::amp, tok::pipe, 1303 tok::caret, tok::plusplus, tok::minusminus}; 1304 for (auto Kind : Unary) { 1305 auto Tokens = 1306 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1307 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1308 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1309 } 1310 // Operators formed by joining two operators like '^~'. For some of these 1311 // joined operators, we don't have a separate type, so we only test for their 1312 // precedence. 1313 std::pair<prec::Level, std::string> JoinedBinary[] = { 1314 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1315 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1316 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1317 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1318 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1319 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1320 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1321 {prec::Equality, "=="}, {prec::Equality, "!="}, 1322 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1323 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1324 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1325 }; 1326 for (auto Operator : JoinedBinary) { 1327 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1328 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1329 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1330 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1331 } 1332 // '~^' and '^~' can be unary as well as binary operators. 1333 auto Tokens = Annotate("x = ~^x;"); 1334 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1335 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1336 Tokens = Annotate("x = ^~x;"); 1337 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1338 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1339 // The unary operators '~&' and '~|' can only be unary operators. The current 1340 // implementation treats each of them as separate unary '~' and '&' or '|' 1341 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1342 // there is a test that there is no space in between. And even if a new line 1343 // is inserted between the '~' and '|', the semantic meaning is the same as 1344 // the joined operator, so the CanBreakBefore property doesn't need to be 1345 // false for the second operator. 1346 Tokens = Annotate("x = ~&x;"); 1347 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1348 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1349 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1350 Tokens = Annotate("x = ~|x;"); 1351 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1352 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1353 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1354 // Test for block label colons. 1355 Tokens = Annotate("begin : x\n" 1356 "end : x"); 1357 ASSERT_EQ(Tokens.size(), 7u); 1358 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1359 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1360 // Test that the dimension colon is annotated correctly. 1361 Tokens = Annotate("var [1 : 0] x;"); 1362 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1363 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1364 Tokens = Annotate("extern function [1 : 0] x;"); 1365 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1366 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1367 // Test case labels and ternary operators. 1368 Tokens = Annotate("case (x)\n" 1369 " x:\n" 1370 " x;\n" 1371 "endcase\n"); 1372 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1373 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GotoLabelColon); 1374 Tokens = Annotate("case (x)\n" 1375 " x ? x : x:\n" 1376 " x;\n" 1377 "endcase\n"); 1378 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1379 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1380 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1381 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GotoLabelColon); 1382 // Non-blocking assignments. 1383 Tokens = Annotate("a <= b;"); 1384 ASSERT_EQ(Tokens.size(), 5u); 1385 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1386 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1387 Tokens = Annotate("if (a <= b) break;"); 1388 ASSERT_EQ(Tokens.size(), 9u); 1389 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1390 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1391 Tokens = Annotate("a <= b <= a;"); 1392 ASSERT_EQ(Tokens.size(), 7u); 1393 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1394 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1395 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1396 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1397 } 1398 1399 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1400 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1401 1402 // The TT_Unknown is clearly not binding for the future, please adapt if those 1403 // tokens get annotated. 1404 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1405 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1406 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1407 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1408 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1409 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1410 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1411 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1412 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1413 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1414 1415 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1416 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1417 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1418 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1419 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1420 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1421 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1422 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1423 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1424 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1425 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1426 } 1427 1428 } // namespace 1429 } // namespace format 1430 } // namespace clang 1431