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, UnderstandsRequiresClausesAndConcepts) { 578 auto Tokens = annotate("template <typename T>\n" 579 "concept C = (Foo && Bar) && (Bar && Baz);"); 580 581 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 582 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 583 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 584 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 585 586 Tokens = annotate("template <typename T>\n" 587 "concept C = Foo && !Bar;"); 588 589 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 590 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 591 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 592 593 Tokens = annotate("template <typename T>\n" 594 "concept C = requires(T t) {\n" 595 " { t.foo() };\n" 596 "} && Bar<T> && Baz<T>;"); 597 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 598 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 599 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 600 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 601 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 602 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 603 604 Tokens = annotate("template<typename T>\n" 605 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 606 "struct Foo;"); 607 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 608 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 609 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 610 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 611 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 612 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 613 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 614 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 615 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 616 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 617 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 618 619 Tokens = 620 annotate("template<typename T>\n" 621 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 622 "struct Foo;"); 623 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 624 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 625 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 626 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 627 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 628 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 629 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 630 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 631 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 632 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 633 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 634 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 635 636 Tokens = annotate("template <typename T>\n" 637 "void foo(T) noexcept requires Bar<T>;"); 638 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 639 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 640 641 Tokens = annotate("template <typename T>\n" 642 "requires Bar<T> || Baz<T>\n" 643 "auto foo(T) -> int;"); 644 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 645 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 646 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 647 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 648 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 649 650 Tokens = annotate("template <typename T>\n" 651 "requires Bar<T>\n" 652 "bool foo(T) { return false; }"); 653 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 654 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 655 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 656 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 657 658 Tokens = annotate("template <typename T>\n" 659 "requires Bar<T>\n" 660 "decltype(auto) foo(T) { return false; }"); 661 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 662 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 663 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 664 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 665 666 Tokens = annotate("template <typename T>\n" 667 "struct S {\n" 668 " void foo() const requires Bar<T>;\n" 669 " void bar() const & requires Baz<T>;\n" 670 " void bar() && requires Baz2<T>;\n" 671 " void baz() const & noexcept requires Baz<T>;\n" 672 " void baz() && noexcept requires Baz2<T>;\n" 673 "};\n" 674 "\n" 675 "void S::bar() const & requires Baz<T> { }"); 676 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 677 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 678 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 679 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 680 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 681 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 682 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 683 684 Tokens = annotate("void Class::member() && requires(Constant) {}"); 685 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 686 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 687 688 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 689 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 690 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 691 692 Tokens = 693 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 694 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 695 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 696 697 Tokens = annotate("void Class::member() && requires(typename " 698 "Namespace::Outer<T>::Inner::Constant) {}"); 699 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 700 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 701 702 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 703 " template<class T>\n" 704 " requires requires { number_zero_v<T>; }\n" 705 " [[nodiscard]] constexpr operator T() const { " 706 "return number_zero_v<T>; }\n" 707 "};"); 708 ASSERT_EQ(Tokens.size(), 44u); 709 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 710 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 711 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 712 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 713 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 714 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 715 716 Tokens = 717 annotate("template <class A, class B> concept C =" 718 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 719 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 720 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 721 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 722 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 723 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 724 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 725 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 726 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 727 728 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 729 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 730 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 731 732 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 733 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 734 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 735 736 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 737 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 738 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 739 740 Tokens = 741 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 742 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 743 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 744 745 Tokens = 746 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 747 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 748 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 749 750 Tokens = 751 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 752 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 753 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 754 } 755 756 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 757 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 758 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 759 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 760 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 761 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 762 763 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 764 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 765 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 766 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 767 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 768 769 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 770 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 771 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 772 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 773 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 774 775 Tokens = annotate("foo(requires(const T t) {});"); 776 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 777 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 778 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 779 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 780 781 Tokens = annotate("foo(requires(const int t) {});"); 782 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 783 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 784 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 785 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 786 787 Tokens = annotate("foo(requires(const T t) {});"); 788 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 789 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 790 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 791 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 792 793 Tokens = annotate("foo(requires(int const* volatile t) {});"); 794 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 795 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 796 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 797 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 798 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 799 800 Tokens = annotate("foo(requires(T const* volatile t) {});"); 801 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 802 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 803 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 804 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 805 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 806 807 Tokens = annotate("foo(requires(T& t) {});"); 808 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 809 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 810 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 811 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 812 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 813 814 Tokens = annotate("foo(requires(T&& t) {});"); 815 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 816 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 817 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 818 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 819 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 820 821 Tokens = annotate("bool foo = requires(T& t) {};"); 822 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 823 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 824 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 825 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 826 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 827 828 Tokens = annotate("bool foo = requires(T&& t) {};"); 829 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 830 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 831 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 832 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 833 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 834 835 Tokens = 836 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 837 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 838 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 839 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 840 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 841 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 842 843 Tokens = annotate("template <typename T>\n" 844 "concept C = requires(T T) {\n" 845 " requires Bar<T> && Foo<T>;\n" 846 "};"); 847 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 848 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 849 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 850 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 851 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 852 TT_RequiresClauseInARequiresExpression); 853 854 Tokens = annotate("template <typename T>\n" 855 "concept C = requires(T T) {\n" 856 " { t.func() } -> std::same_as<int>;" 857 " requires Bar<T> && Foo<T>;\n" 858 "};"); 859 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 860 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 861 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 862 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 863 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 864 TT_RequiresClauseInARequiresExpression); 865 866 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 867 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 868 "requires true; };"); 869 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 870 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 871 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 872 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 873 } 874 875 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 876 // Everything after #pragma region should be ImplicitStringLiteral 877 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 878 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 879 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 880 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 881 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 882 883 // Make sure it's annotated correctly inside a function as well 884 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 885 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 886 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 887 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 888 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 889 } 890 891 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 892 const char *BaseCode = nullptr; 893 const char *ConstrainedCode = nullptr; 894 auto BaseTokenCount = 0u; 895 auto RequiresTokenCount = 0u; 896 auto PrefixTokenCount = 0u; 897 898 auto TestRequires = [&](int Line) { 899 const auto BaseTokens = annotate(BaseCode); 900 const auto ConstrainedTokens = annotate(ConstrainedCode); 901 902 #define LINE " (Line " << Line << ')' 903 904 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 905 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 906 << LINE; 907 908 for (auto I = 0u; I < BaseTokenCount; ++I) { 909 EXPECT_EQ( 910 *BaseTokens[I], 911 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 912 << I << LINE; 913 } 914 915 #undef LINE 916 }; 917 918 BaseCode = "template<typename T>\n" 919 "T Pi = 3.14;"; 920 ConstrainedCode = "template<typename T>\n" 921 " requires Foo<T>\n" 922 "T Pi = 3.14;"; 923 BaseTokenCount = 11; 924 RequiresTokenCount = 5; 925 PrefixTokenCount = 5; 926 TestRequires(__LINE__); 927 928 BaseCode = "template<typename T>\n" 929 "struct Bar;"; 930 ConstrainedCode = "template<typename T>\n" 931 " requires Foo<T>\n" 932 "struct Bar;"; 933 BaseTokenCount = 9; 934 TestRequires(__LINE__); 935 936 BaseCode = "template<typename T>\n" 937 "struct Bar {\n" 938 " T foo();\n" 939 " T bar();\n" 940 "};"; 941 ConstrainedCode = "template<typename T>\n" 942 " requires Foo<T>\n" 943 "struct Bar {\n" 944 " T foo();\n" 945 " T bar();\n" 946 "};"; 947 BaseTokenCount = 21; 948 TestRequires(__LINE__); 949 950 BaseCode = "template<typename T>\n" 951 "Bar(T) -> Bar<T>;"; 952 ConstrainedCode = "template<typename T>\n" 953 " requires Foo<T>\n" 954 "Bar(T) -> Bar<T>;"; 955 BaseTokenCount = 16; 956 TestRequires(__LINE__); 957 958 BaseCode = "template<typename T>\n" 959 "T foo();"; 960 ConstrainedCode = "template<typename T>\n" 961 " requires Foo<T>\n" 962 "T foo();"; 963 BaseTokenCount = 11; 964 TestRequires(__LINE__); 965 966 BaseCode = "template<typename T>\n" 967 "T foo() {\n" 968 " auto bar = baz();\n" 969 " return bar + T{};\n" 970 "}"; 971 ConstrainedCode = "template<typename T>\n" 972 " requires Foo<T>\n" 973 "T foo() {\n" 974 " auto bar = baz();\n" 975 " return bar + T{};\n" 976 "}"; 977 BaseTokenCount = 26; 978 TestRequires(__LINE__); 979 980 BaseCode = "template<typename T>\n" 981 "T foo();"; 982 ConstrainedCode = "template<typename T>\n" 983 "T foo() requires Foo<T>;"; 984 BaseTokenCount = 11; 985 PrefixTokenCount = 9; 986 TestRequires(__LINE__); 987 988 BaseCode = "template<typename T>\n" 989 "T foo() {\n" 990 " auto bar = baz();\n" 991 " return bar + T{};\n" 992 "}"; 993 ConstrainedCode = "template<typename T>\n" 994 "T foo() requires Foo<T> {\n" 995 " auto bar = baz();\n" 996 " return bar + T{};\n" 997 "}"; 998 BaseTokenCount = 26; 999 TestRequires(__LINE__); 1000 1001 BaseCode = "template<typename T>\n" 1002 "T foo();"; 1003 ConstrainedCode = "template<typename T>\n" 1004 " requires(Foo<T>)\n" 1005 "T foo();"; 1006 BaseTokenCount = 11; 1007 RequiresTokenCount = 7; 1008 PrefixTokenCount = 5; 1009 TestRequires(__LINE__); 1010 1011 BaseCode = "template<typename T>\n" 1012 "Bar(T) -> Bar<typename T::I>;"; 1013 ConstrainedCode = "template<typename T>\n" 1014 " requires requires(T &&t) {\n" 1015 " typename T::I;\n" 1016 " }\n" 1017 "Bar(T) -> Bar<typename T::I>;"; 1018 BaseTokenCount = 19; 1019 RequiresTokenCount = 14; 1020 PrefixTokenCount = 5; 1021 TestRequires(__LINE__); 1022 1023 BaseCode = "struct [[nodiscard]] zero_t {\n" 1024 " template<class T>\n" 1025 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1026 "};"; 1027 ConstrainedCode = 1028 "struct [[nodiscard]] zero_t {\n" 1029 " template<class T>\n" 1030 " requires requires { v<T>; }\n" 1031 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1032 "};"; 1033 BaseTokenCount = 35; 1034 RequiresTokenCount = 9; 1035 PrefixTokenCount = 13; 1036 TestRequires(__LINE__); 1037 1038 BaseCode = "constexpr Foo(Foo const &other)\n" 1039 " : value{other.value} {\n" 1040 " do_magic();\n" 1041 " do_more_magic();\n" 1042 "}"; 1043 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1044 " requires std::is_copy_constructible<T>\n" 1045 " : value{other.value} {\n" 1046 " do_magic();\n" 1047 " do_more_magic();\n" 1048 "}"; 1049 BaseTokenCount = 26; 1050 RequiresTokenCount = 7; 1051 PrefixTokenCount = 8; 1052 TestRequires(__LINE__); 1053 1054 BaseCode = "constexpr Foo(Foo const &other)\n" 1055 " : value{other.value} {\n" 1056 " do_magic();\n" 1057 " do_more_magic();\n" 1058 "}"; 1059 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1060 " requires (std::is_copy_constructible<T>)\n" 1061 " : value{other.value} {\n" 1062 " do_magic();\n" 1063 " do_more_magic();\n" 1064 "}"; 1065 RequiresTokenCount = 9; 1066 TestRequires(__LINE__); 1067 } 1068 1069 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1070 auto Tokens = annotate("__asm{\n" 1071 "a:\n" 1072 "};"); 1073 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1074 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1075 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1076 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1077 } 1078 1079 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1080 auto Tokens = annotate("int (^)() = ^ ()\n" 1081 " external_source_symbol() { //\n" 1082 " return 1;\n" 1083 "};"); 1084 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1085 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1086 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1087 1088 Tokens = annotate("int *p = ^int*(){ //\n" 1089 " return nullptr;\n" 1090 "}();"); 1091 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1092 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1093 } 1094 1095 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1096 auto Tokens = annotate("[]() constexpr {}"); 1097 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1098 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1099 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1100 1101 Tokens = annotate("[]() consteval {}"); 1102 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1103 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1104 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1105 1106 Tokens = annotate("[]() mutable {}"); 1107 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1108 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1109 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1110 1111 Tokens = annotate("[]() static {}"); 1112 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1113 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1114 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1115 1116 Tokens = annotate("[]() -> auto {}"); 1117 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1118 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1119 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1120 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1121 1122 Tokens = annotate("[]() -> auto & {}"); 1123 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1124 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1125 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1126 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1127 1128 Tokens = annotate("[]() -> auto * {}"); 1129 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1130 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1131 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1132 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1133 1134 Tokens = annotate("[] {}"); 1135 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1136 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1137 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1138 1139 Tokens = annotate("[] noexcept {}"); 1140 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1141 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1142 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1143 1144 Tokens = annotate("[] -> auto {}"); 1145 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1146 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1147 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1148 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1149 1150 Tokens = annotate("[] <typename T> () {}"); 1151 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1152 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1153 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1154 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1155 1156 Tokens = annotate("[] <typename T> {}"); 1157 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1158 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1159 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1160 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1161 1162 Tokens = annotate("[] <typename... T> () {}"); 1163 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1164 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1165 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1166 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1167 1168 Tokens = annotate("[] <typename... T> {}"); 1169 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1170 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1171 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1172 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1173 1174 Tokens = annotate("[] <int... T> () {}"); 1175 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1176 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1177 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1178 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1179 1180 Tokens = annotate("[] <int... T> {}"); 1181 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1182 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1183 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1184 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1185 1186 Tokens = annotate("[] <Foo... T> () {}"); 1187 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1188 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1189 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1190 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1191 1192 Tokens = annotate("[] <Foo... T> {}"); 1193 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1194 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1195 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1196 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1197 } 1198 1199 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1200 auto Tokens = annotate("template <typename T>\n" 1201 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1202 "string OldFunction(const string ¶meter) {}"); 1203 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1204 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1205 1206 Tokens = annotate("template <typename T>\n" 1207 "A(T) noexcept;"); 1208 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1209 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1210 } 1211 1212 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1213 auto Tokens = annotate("void f [[noreturn]] ();"); 1214 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1215 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1216 1217 Tokens = annotate("void f [[noreturn]] () {}"); 1218 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1219 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1220 } 1221 1222 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1223 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1224 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1225 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1226 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1227 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1228 } 1229 1230 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1231 auto Annotate = [this](llvm::StringRef Code) { 1232 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1233 }; 1234 // Test that unary operators get labeled as such and that operators like '++' 1235 // don't get split. 1236 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1237 tok::tilde, tok::amp, tok::pipe, 1238 tok::caret, tok::plusplus, tok::minusminus}; 1239 for (auto Kind : Unary) { 1240 auto Tokens = 1241 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1242 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1243 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1244 } 1245 // Operators formed by joining two operators like '^~'. For some of these 1246 // joined operators, we don't have a separate type, so we only test for their 1247 // precedence. 1248 std::pair<prec::Level, std::string> JoinedBinary[] = { 1249 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1250 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1251 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1252 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1253 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1254 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1255 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1256 {prec::Equality, "=="}, {prec::Equality, "!="}, 1257 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1258 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1259 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1260 }; 1261 for (auto Operator : JoinedBinary) { 1262 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1263 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1264 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1265 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1266 } 1267 // '~^' and '^~' can be unary as well as binary operators. 1268 auto Tokens = Annotate("x = ~^x;"); 1269 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1270 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1271 Tokens = Annotate("x = ^~x;"); 1272 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1273 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1274 // The unary operators '~&' and '~|' can only be unary operators. The current 1275 // implementation treats each of them as separate unary '~' and '&' or '|' 1276 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1277 // there is a test that there is no space in between. And even if a new line 1278 // is inserted between the '~' and '|', the semantic meaning is the same as 1279 // the joined operator, so the CanBreakBefore property doesn't need to be 1280 // false for the second operator. 1281 Tokens = Annotate("x = ~&x;"); 1282 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1283 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1284 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1285 Tokens = Annotate("x = ~|x;"); 1286 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1287 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1288 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1289 // Test for block label colons. 1290 Tokens = Annotate("begin : x\n" 1291 "end : x"); 1292 ASSERT_EQ(Tokens.size(), 7u); 1293 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1294 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1295 // Test that the dimension colon is annotated correctly. 1296 Tokens = Annotate("var [1 : 0] x;"); 1297 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1298 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1299 Tokens = Annotate("extern function [1 : 0] x;"); 1300 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1301 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1302 // Test case labels and ternary operators. 1303 Tokens = Annotate("case (x)\n" 1304 " x:\n" 1305 " x;\n" 1306 "endcase\n"); 1307 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1308 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GotoLabelColon); 1309 Tokens = Annotate("case (x)\n" 1310 " x ? x : x:\n" 1311 " x;\n" 1312 "endcase\n"); 1313 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1314 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1315 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1316 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GotoLabelColon); 1317 } 1318 1319 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1320 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1321 1322 // The TT_Unknown is clearly not binding for the future, please adapt if those 1323 // tokens get annotated. 1324 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1325 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1326 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1327 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1328 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1329 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1330 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1331 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1332 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1333 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1334 1335 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1336 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1337 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1338 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1339 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1340 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1341 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1342 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1343 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1344 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1345 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1346 } 1347 1348 } // namespace 1349 } // namespace format 1350 } // namespace clang 1351