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_BRACE_KIND(FormatTok, Kind) \ 44 EXPECT_EQ(FormatTok->getBlockKind(), Kind) << *(FormatTok) 45 #define EXPECT_TOKEN(FormatTok, Kind, Type) \ 46 do { \ 47 EXPECT_TOKEN_KIND(FormatTok, Kind); \ 48 EXPECT_TOKEN_TYPE(FormatTok, Type); \ 49 } while (false) 50 51 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfStarAndAmp) { 52 auto Tokens = annotate("auto x = [](const decltype(x) &ptr) {};"); 53 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 54 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 55 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 56 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 57 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 58 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 59 60 Tokens = annotate("auto x = [](const decltype(x) *ptr) {};"); 61 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 62 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 63 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 64 65 Tokens = annotate("#define lambda [](const decltype(x) &ptr) {}"); 66 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 67 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 68 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 69 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 70 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 71 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 72 73 Tokens = annotate("#define lambda [](const decltype(x) *ptr) {}"); 74 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 75 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 76 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 77 78 Tokens = annotate("void f() {\n" 79 " while (p < a && *p == 'a')\n" 80 " p++;\n" 81 "}"); 82 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 83 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 84 EXPECT_TOKEN(Tokens[11], tok::star, TT_UnaryOperator); 85 86 Tokens = annotate("case *x:"); 87 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 88 EXPECT_TOKEN(Tokens[1], tok::star, TT_UnaryOperator); 89 Tokens = annotate("case &x:"); 90 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 91 EXPECT_TOKEN(Tokens[1], tok::amp, TT_UnaryOperator); 92 93 Tokens = annotate("bool b = 3 == int{3} && true;\n"); 94 EXPECT_EQ(Tokens.size(), 13u) << Tokens; 95 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 96 97 Tokens = annotate("struct {\n" 98 "} *ptr;"); 99 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 100 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 101 Tokens = annotate("union {\n" 102 "} *ptr;"); 103 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 104 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 105 Tokens = annotate("class {\n" 106 "} *ptr;"); 107 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 108 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 109 110 Tokens = annotate("struct {\n" 111 "} &&ptr = {};"); 112 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 113 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 114 Tokens = annotate("union {\n" 115 "} &&ptr = {};"); 116 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 117 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 118 Tokens = annotate("class {\n" 119 "} &&ptr = {};"); 120 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 121 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 122 Tokens = annotate("int i = int{42} * 2;"); 123 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 124 EXPECT_TOKEN(Tokens[7], tok::star, TT_BinaryOperator); 125 126 Tokens = annotate("delete[] *ptr;"); 127 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 128 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 129 Tokens = annotate("delete[] **ptr;"); 130 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 131 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 132 EXPECT_TOKEN(Tokens[4], tok::star, TT_UnaryOperator); 133 Tokens = annotate("delete[] *(ptr);"); 134 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 135 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 136 137 Tokens = annotate("void f() { void (*fnptr)(char* foo); }"); 138 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 139 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 140 // FIXME: The star of a function pointer probably makes more sense as 141 // TT_PointerOrReference. 142 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 143 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 144 145 Tokens = annotate("void f() { void (*fnptr)(t* foo); }"); 146 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 147 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 148 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 149 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 150 151 Tokens = annotate("int f3() { return sizeof(Foo&); }"); 152 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 153 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 154 155 Tokens = annotate("int f4() { return sizeof(Foo&&); }"); 156 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 157 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 158 159 Tokens = annotate("void f5() { int f6(Foo&, Bar&); }"); 160 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 161 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 162 EXPECT_TOKEN(Tokens[12], tok::amp, TT_PointerOrReference); 163 164 Tokens = annotate("void f7() { int f8(Foo&&, Bar&&); }"); 165 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 166 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 167 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_PointerOrReference); 168 169 Tokens = annotate("Type1 &val1 = val2;"); 170 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 171 EXPECT_TOKEN(Tokens[1], tok::amp, TT_PointerOrReference); 172 173 Tokens = annotate("Type1 *val1 = &val2;"); 174 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 175 EXPECT_TOKEN(Tokens[1], tok::star, TT_PointerOrReference); 176 EXPECT_TOKEN(Tokens[4], tok::amp, TT_UnaryOperator); 177 178 Tokens = annotate("val1 & val2;"); 179 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 180 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 181 182 Tokens = annotate("val1 & val2.member;"); 183 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 184 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 185 186 Tokens = annotate("val1 & val2.*member;"); 187 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 188 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 189 190 Tokens = annotate("val1.*member & val2;"); 191 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 192 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 193 194 Tokens = annotate("val1 & val2->*member;"); 195 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 196 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 197 198 Tokens = annotate("val1->member & val2;"); 199 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 200 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 201 202 Tokens = annotate("val1 & val2 & val3;"); 203 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 204 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 205 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 206 207 Tokens = annotate("val1 & val2 // comment\n" 208 " & val3;"); 209 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 210 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 211 EXPECT_TOKEN(Tokens[4], tok::amp, TT_BinaryOperator); 212 213 Tokens = 214 annotate("val1 & val2.member & val3.member() & val4 & val5->member;"); 215 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 216 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 217 EXPECT_TOKEN(Tokens[5], tok::amp, TT_BinaryOperator); 218 EXPECT_TOKEN(Tokens[11], tok::amp, TT_BinaryOperator); 219 EXPECT_TOKEN(Tokens[13], tok::amp, TT_BinaryOperator); 220 221 Tokens = annotate("class c {\n" 222 " void func(type &a) { a & member; }\n" 223 " anotherType &member;\n" 224 "}"); 225 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 226 EXPECT_TOKEN(Tokens[7], tok::amp, TT_PointerOrReference); 227 EXPECT_TOKEN(Tokens[12], tok::amp, TT_BinaryOperator); 228 EXPECT_TOKEN(Tokens[17], tok::amp, TT_PointerOrReference); 229 230 Tokens = annotate("struct S {\n" 231 " auto Mem = C & D;\n" 232 "}"); 233 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 234 EXPECT_TOKEN(Tokens[7], tok::amp, TT_BinaryOperator); 235 236 Tokens = 237 annotate("template <typename T> void swap() noexcept(Bar<T> && Foo<T>);"); 238 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 239 EXPECT_TOKEN(Tokens[15], tok::ampamp, TT_BinaryOperator); 240 241 Tokens = annotate("template <typename T> struct S {\n" 242 " explicit(Bar<T> && Foo<T>) S(const S &);\n" 243 "};"); 244 ASSERT_EQ(Tokens.size(), 30u) << Tokens; 245 EXPECT_TOKEN(Tokens[14], tok::ampamp, TT_BinaryOperator); 246 247 Tokens = annotate("template <bool B = C && D> struct S {};"); 248 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 249 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_BinaryOperator); 250 251 Tokens = annotate("template <typename T, bool B = C && D> struct S {};"); 252 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 253 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 254 255 Tokens = annotate("template <typename T, typename U = T&&> struct S {};"); 256 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 257 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 258 259 Tokens = annotate("template <typename T = int (*)(int)> struct S {};"); 260 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 261 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 262 EXPECT_TOKEN(Tokens[7], tok::star, TT_PointerOrReference); 263 264 Tokens = annotate("Foo<A && B> a = {};"); 265 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 266 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_BinaryOperator); 267 268 Tokens = annotate("Foo<A &&> a = {};"); 269 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 270 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 271 272 Tokens = annotate("template <enable_if_t<foo && !bar>* = nullptr> void f();"); 273 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 274 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_BinaryOperator); 275 } 276 277 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 278 auto Tokens = annotate("x - 0"); 279 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 280 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 281 Tokens = annotate("0 + 0"); 282 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 283 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 284 Tokens = annotate("x + +0"); 285 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 286 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 287 Tokens = annotate("x ? -0 : +0"); 288 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 289 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 290 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 291 Tokens = annotate("(-0)"); 292 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 293 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 294 Tokens = annotate("0, -0"); 295 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 296 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 297 Tokens = annotate("for (; -1;) {\n}"); 298 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 299 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 300 Tokens = annotate("x = -1;"); 301 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 302 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 303 Tokens = annotate("x[-1]"); 304 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 305 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 306 Tokens = annotate("x = {-1};"); 307 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 308 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 309 Tokens = annotate("case -x:"); 310 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 311 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 312 Tokens = annotate("co_await -x;"); 313 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 314 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 315 Tokens = annotate("co_return -x;"); 316 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 317 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 318 Tokens = annotate("co_yield -x;"); 319 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 320 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 321 Tokens = annotate("delete -x;"); 322 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 323 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 324 Tokens = annotate("return -x;"); 325 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 326 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 327 Tokens = annotate("throw -x;"); 328 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 329 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 330 Tokens = annotate("sizeof -x"); 331 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 332 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 333 Tokens = annotate("co_await +x;"); 334 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 335 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 336 Tokens = annotate("co_return +x;"); 337 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 338 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 339 Tokens = annotate("co_yield +x;"); 340 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 341 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 342 Tokens = annotate("delete +x;"); 343 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 344 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 345 Tokens = annotate("return +x;"); 346 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 347 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 348 Tokens = annotate("throw +x;"); 349 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 350 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 351 Tokens = annotate("sizeof +x"); 352 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 353 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 354 Tokens = annotate("(int)-x"); 355 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 356 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 357 Tokens = annotate("(-x)"); 358 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 359 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 360 Tokens = annotate("!+x"); 361 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 362 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 363 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 364 } 365 366 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 367 auto Tokens = annotate("class C {};"); 368 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 369 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 370 371 Tokens = annotate("const class C {} c;"); 372 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 373 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 374 375 Tokens = annotate("const class {} c;"); 376 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 377 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 378 379 Tokens = annotate("class [[deprecated(\"\")]] C { int i; };"); 380 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 381 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_ClassLBrace); 382 } 383 384 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 385 auto Tokens = annotate("struct S {};"); 386 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 387 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 388 389 Tokens = annotate("struct EXPORT_MACRO [[nodiscard]] C { int i; };"); 390 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 391 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_StructLBrace); 392 393 Tokens = annotate("struct [[deprecated]] [[nodiscard]] C { int i; };"); 394 EXPECT_EQ(Tokens.size(), 19u) << Tokens; 395 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_StructLBrace); 396 397 Tokens = annotate("template <typename T> struct S<const T[N]> {};"); 398 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 399 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 400 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 401 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 402 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 403 404 Tokens = annotate("template <typename T> struct S<T const[N]> {};"); 405 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 406 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 407 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 408 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 409 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 410 411 Tokens = annotate("template <typename T, unsigned n> struct S<T const[n]> {\n" 412 " void f(T const (&a)[n]);\n" 413 "};"); 414 EXPECT_EQ(Tokens.size(), 35u) << Tokens; 415 EXPECT_TOKEN(Tokens[10], tok::less, TT_TemplateOpener); 416 EXPECT_TOKEN(Tokens[13], tok::l_square, TT_ArraySubscriptLSquare); 417 EXPECT_TOKEN(Tokens[16], tok::greater, TT_TemplateCloser); 418 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_StructLBrace); 419 EXPECT_TOKEN(Tokens[23], tok::l_paren, TT_FunctionTypeLParen); 420 EXPECT_TOKEN(Tokens[24], tok::amp, TT_UnaryOperator); 421 EXPECT_TOKEN(Tokens[27], tok::l_square, TT_ArraySubscriptLSquare); 422 } 423 424 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 425 auto Tokens = annotate("union U {};"); 426 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 427 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 428 429 Tokens = annotate("union U { void f() { return; } };"); 430 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 431 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 432 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 433 } 434 435 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 436 auto Tokens = annotate("enum E {};"); 437 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 438 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 439 } 440 441 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 442 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 443 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 444 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 445 446 Tokens = annotate("template <typename T> void F(T) && = delete;"); 447 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 448 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 449 } 450 451 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 452 auto Tokens = 453 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 454 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 455 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 456 } 457 458 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 459 auto Tokens = 460 annotate("template <typename T> " 461 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 462 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 463 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 464 } 465 466 TEST_F(TokenAnnotatorTest, UnderstandsTemplatesInMacros) { 467 auto Tokens = 468 annotate("#define FOO(typeName) \\\n" 469 " { #typeName, foo<FooType>(new foo<realClass>(#typeName)) }"); 470 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 471 EXPECT_TOKEN(Tokens[11], tok::less, TT_TemplateOpener); 472 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 473 EXPECT_TOKEN(Tokens[17], tok::less, TT_TemplateOpener); 474 EXPECT_TOKEN(Tokens[19], tok::greater, TT_TemplateCloser); 475 } 476 477 TEST_F(TokenAnnotatorTest, UnderstandsGreaterAfterTemplateCloser) { 478 auto Tokens = annotate("if (std::tuple_size_v<T> > 0)"); 479 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 480 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 481 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 482 EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator); 483 } 484 485 TEST_F(TokenAnnotatorTest, UnderstandsNonTemplateAngleBrackets) { 486 auto Tokens = annotate("return a < b && c > d;"); 487 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 488 EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator); 489 EXPECT_TOKEN(Tokens[6], tok::greater, TT_BinaryOperator); 490 491 Tokens = annotate("a < 0 ? b : a > 0 ? c : d;"); 492 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 493 EXPECT_TOKEN(Tokens[1], tok::less, TT_BinaryOperator); 494 EXPECT_TOKEN(Tokens[7], tok::greater, TT_BinaryOperator); 495 496 Tokens = annotate("ratio{-1, 2} < ratio{-1, 3} == -1 / 3 > -1 / 2;"); 497 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 498 EXPECT_TOKEN(Tokens[7], tok::less, TT_BinaryOperator); 499 EXPECT_TOKEN(Tokens[20], tok::greater, TT_BinaryOperator); 500 } 501 502 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 503 FormatStyle Style = getLLVMStyle(); 504 Style.WhitespaceSensitiveMacros.push_back("FOO"); 505 506 auto Tokens = annotate("FOO(1+2 )\n", Style); 507 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 508 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 509 510 Tokens = annotate("FOO(a:b:c)\n", Style); 511 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 512 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 513 } 514 515 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 516 auto Tokens = annotate("delete (void *)p;"); 517 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 518 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 519 520 Tokens = annotate("delete[] (void *)p;"); 521 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 522 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 523 524 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 525 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 526 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 527 528 Tokens = annotate("delete[/*comment*/] (void *)p;"); 529 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 530 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 531 532 Tokens = annotate("delete/*comment*/[] (void *)p;"); 533 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 534 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 535 } 536 537 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 538 auto Tokens = annotate("(void)p;"); 539 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 540 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 541 542 Tokens = annotate("auto x = (Foo)p;"); 543 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 544 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 545 546 Tokens = annotate("(std::vector<int>)p;"); 547 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 548 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 549 550 Tokens = annotate("return (Foo)p;"); 551 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 552 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 553 554 Tokens = annotate("throw (Foo)p;"); 555 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 556 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 557 } 558 559 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 560 auto Tokens = annotate("void f() throw(int);"); 561 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 562 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 563 } 564 565 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 566 auto Tokens = annotate("void f() &;"); 567 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 568 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 569 570 Tokens = annotate("void operator=(T) &&;"); 571 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 572 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 573 574 Tokens = annotate("template <typename T> void f() &;"); 575 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 576 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 577 578 Tokens = annotate("template <typename T> void operator=(T) &;"); 579 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 580 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 581 } 582 583 TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) { 584 auto Tokens = annotate("x.operator+()"); 585 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 586 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 587 EXPECT_TOKEN(Tokens[3], tok::plus, TT_OverloadedOperator); 588 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 589 Tokens = annotate("x.operator=()"); 590 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 591 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 592 EXPECT_TOKEN(Tokens[3], tok::equal, TT_OverloadedOperator); 593 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 594 Tokens = annotate("x.operator+=()"); 595 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 596 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 597 EXPECT_TOKEN(Tokens[3], tok::plusequal, TT_OverloadedOperator); 598 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 599 Tokens = annotate("x.operator,()"); 600 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 601 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 602 EXPECT_TOKEN(Tokens[3], tok::comma, TT_OverloadedOperator); 603 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 604 Tokens = annotate("x.operator()()"); 605 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 606 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 607 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperator); 608 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_OverloadedOperator); 609 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 610 Tokens = annotate("x.operator[]()"); 611 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 612 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 613 // EXPECT_TOKEN(Tokens[3], tok::l_square, TT_OverloadedOperator); 614 // EXPECT_TOKEN(Tokens[4], tok::r_square, TT_OverloadedOperator); 615 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 616 Tokens = annotate("x.operator\"\"_a()"); 617 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 618 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 619 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 620 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 621 Tokens = annotate("x.operator\"\" _a()"); 622 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 623 // FIXME 624 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 625 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 626 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 627 Tokens = annotate("x.operator\"\"if()"); 628 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 629 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 630 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 631 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 632 Tokens = annotate("x.operator\"\"s()"); 633 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 634 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 635 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 636 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 637 Tokens = annotate("x.operator\"\" s()"); 638 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 639 // FIXME 640 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 641 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 642 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 643 644 Tokens = annotate("int operator+(int);"); 645 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 646 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 647 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 648 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 649 Tokens = annotate("auto operator=(T&) {}"); 650 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 651 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 652 EXPECT_TOKEN(Tokens[2], tok::equal, TT_OverloadedOperator); 653 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 654 Tokens = annotate("auto operator()() {}"); 655 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 656 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 657 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_OverloadedOperator); 658 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_OverloadedOperator); 659 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 660 } 661 662 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 663 struct { 664 const char *Text; 665 tok::TokenKind Kind; 666 } Operators[] = {{"+", tok::plus}, 667 {"-", tok::minus}, 668 // FIXME: 669 // {"*", tok::star}, 670 {"/", tok::slash}, 671 {"%", tok::percent}, 672 {"^", tok::caret}, 673 // FIXME: 674 // {"&", tok::amp}, 675 {"|", tok::pipe}, 676 {"~", tok::tilde}, 677 {"!", tok::exclaim}, 678 {"=", tok::equal}, 679 // FIXME: 680 // {"<", tok::less}, 681 {">", tok::greater}, 682 {"+=", tok::plusequal}, 683 {"-=", tok::minusequal}, 684 {"*=", tok::starequal}, 685 {"/=", tok::slashequal}, 686 {"%=", tok::percentequal}, 687 {"^=", tok::caretequal}, 688 {"&=", tok::ampequal}, 689 {"|=", tok::pipeequal}, 690 {"<<", tok::lessless}, 691 {">>", tok::greatergreater}, 692 {">>=", tok::greatergreaterequal}, 693 {"<<=", tok::lesslessequal}, 694 {"==", tok::equalequal}, 695 {"!=", tok::exclaimequal}, 696 {"<=", tok::lessequal}, 697 {">=", tok::greaterequal}, 698 {"<=>", tok::spaceship}, 699 {"&&", tok::ampamp}, 700 {"||", tok::pipepipe}, 701 {"++", tok::plusplus}, 702 {"--", tok::minusminus}, 703 {",", tok::comma}, 704 {"->*", tok::arrowstar}, 705 {"->", tok::arrow}}; 706 707 for (const auto &Operator : Operators) { 708 std::string Input("C<&operator"); 709 Input += Operator.Text; 710 Input += " > a;"; 711 auto Tokens = annotate(std::string(Input)); 712 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 713 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 714 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 715 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 716 } 717 718 auto Tokens = annotate("C<&operator< <X>> lt;"); 719 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 720 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 721 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 722 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 723 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 724 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 725 } 726 727 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 728 auto Tokens = annotate("template <typename T>\n" 729 "concept C = (Foo && Bar) && (Bar && Baz);"); 730 731 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 732 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 733 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 734 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 735 736 Tokens = annotate("template <typename T>\n" 737 "concept C = Foo && !Bar;"); 738 739 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 740 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 741 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 742 743 Tokens = annotate("template <typename T>\n" 744 "concept C = requires(T t) {\n" 745 " { t.foo() };\n" 746 "} && Bar<T> && Baz<T>;"); 747 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 748 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 749 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 750 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 751 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 752 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 753 754 Tokens = annotate("template<typename T>\n" 755 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 756 "struct Foo;"); 757 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 758 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 759 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 760 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 761 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 762 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 763 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 764 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 765 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 766 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 767 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 768 769 Tokens = 770 annotate("template<typename T>\n" 771 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 772 "struct Foo;"); 773 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 774 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 775 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 776 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 777 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 778 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 779 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 780 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 781 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 782 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 783 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 784 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 785 786 Tokens = annotate("template <typename T>\n" 787 "void foo(T) noexcept requires Bar<T>;"); 788 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 789 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 790 791 Tokens = annotate("template <typename T>\n" 792 "requires Bar<T> || Baz<T>\n" 793 "auto foo(T) -> int;"); 794 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 795 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 796 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 797 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 798 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 799 800 Tokens = annotate("template <typename T>\n" 801 "requires Bar<T>\n" 802 "bool foo(T) { return false; }"); 803 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 804 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 805 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 806 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 807 808 Tokens = annotate("template <typename T>\n" 809 "requires Bar<T>\n" 810 "decltype(auto) foo(T) { return false; }"); 811 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 812 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 813 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 814 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 815 816 Tokens = annotate("template <typename T>\n" 817 "struct S {\n" 818 " void foo() const requires Bar<T>;\n" 819 " void bar() const & requires Baz<T>;\n" 820 " void bar() && requires Baz2<T>;\n" 821 " void baz() const & noexcept requires Baz<T>;\n" 822 " void baz() && noexcept requires Baz2<T>;\n" 823 "};\n" 824 "\n" 825 "void S::bar() const & requires Baz<T> { }"); 826 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 827 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 828 EXPECT_TOKEN(Tokens[24], tok::amp, TT_PointerOrReference); 829 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 830 EXPECT_TOKEN(Tokens[35], tok::ampamp, TT_PointerOrReference); 831 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 832 EXPECT_TOKEN(Tokens[47], tok::amp, TT_PointerOrReference); 833 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 834 EXPECT_TOKEN(Tokens[59], tok::ampamp, TT_PointerOrReference); 835 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 836 EXPECT_TOKEN(Tokens[76], tok::amp, TT_PointerOrReference); 837 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 838 839 Tokens = annotate("void Class::member() && requires(Constant) {}"); 840 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 841 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 842 843 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 844 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 845 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 846 847 Tokens = 848 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 849 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 850 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 851 852 Tokens = annotate("void Class::member() && requires(typename " 853 "Namespace::Outer<T>::Inner::Constant) {}"); 854 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 855 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 856 857 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 858 " template<class T>\n" 859 " requires requires { number_zero_v<T>; }\n" 860 " [[nodiscard]] constexpr operator T() const { " 861 "return number_zero_v<T>; }\n" 862 "};"); 863 ASSERT_EQ(Tokens.size(), 44u) << Tokens; 864 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 865 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 866 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 867 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 868 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 869 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 870 871 Tokens = 872 annotate("template <class A, class B> concept C =" 873 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 874 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 875 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 876 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 877 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 878 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 879 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 880 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 881 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 882 883 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 884 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 885 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 886 887 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 888 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 889 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 890 891 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 892 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 893 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 894 895 Tokens = 896 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 897 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 898 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 899 900 Tokens = 901 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 902 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 903 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 904 905 Tokens = 906 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 907 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 908 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 909 910 Tokens = annotate("void foo() requires((A<T>) && C) {}"); 911 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 912 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 913 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_BinaryOperator); 914 915 Tokens = annotate("void foo() requires(((A<T>) && C)) {}"); 916 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 917 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 918 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 919 920 Tokens = annotate("void foo() requires([](T&&){}(t)) {}"); 921 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 922 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 923 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 924 925 Tokens = annotate("void foo() requires([](T&& u){}(t)) {}"); 926 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 927 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 928 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 929 } 930 931 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 932 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 933 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 934 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 935 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 936 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 937 938 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 939 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 940 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 941 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 942 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 943 944 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 945 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 946 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 947 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 948 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 949 950 Tokens = annotate("foo(requires(const T t) {});"); 951 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 952 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 953 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 954 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 955 956 Tokens = annotate("foo(requires(const int t) {});"); 957 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 958 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 959 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 960 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 961 962 Tokens = annotate("foo(requires(const T t) {});"); 963 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 964 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 965 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 966 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 967 968 Tokens = annotate("foo(requires(int const* volatile t) {});"); 969 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 970 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 971 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 972 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 973 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 974 975 Tokens = annotate("foo(requires(T const* volatile t) {});"); 976 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 977 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 978 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 979 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 980 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 981 982 Tokens = annotate("foo(requires(T& t) {});"); 983 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 984 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 985 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 986 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 987 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 988 989 Tokens = annotate("foo(requires(T&& t) {});"); 990 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 991 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 992 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 993 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 994 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 995 996 Tokens = annotate("bool foo = requires(T& t) {};"); 997 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 998 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 999 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1000 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 1001 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1002 1003 Tokens = annotate("bool foo = requires(T&& t) {};"); 1004 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1005 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1006 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1007 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 1008 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1009 1010 Tokens = 1011 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 1012 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1013 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1014 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1015 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 1016 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 1017 1018 Tokens = annotate("template <typename T>\n" 1019 "concept C = requires(T T) {\n" 1020 " requires Bar<T> && Foo<T>;\n" 1021 "};"); 1022 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1023 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1024 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1025 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1026 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1027 TT_RequiresClauseInARequiresExpression); 1028 1029 Tokens = annotate("template <typename T>\n" 1030 "concept C = requires(T T) {\n" 1031 " { t.func() } -> std::same_as<int>;" 1032 " requires Bar<T> && Foo<T>;\n" 1033 "};"); 1034 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1035 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1036 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1037 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1038 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1039 TT_RequiresClauseInARequiresExpression); 1040 1041 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1042 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1043 "requires true; };"); 1044 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1045 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1046 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1047 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1048 } 1049 1050 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1051 // Everything after #pragma region should be ImplicitStringLiteral 1052 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1053 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1054 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1055 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1056 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1057 1058 // Make sure it's annotated correctly inside a function as well 1059 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1060 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1061 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1062 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1063 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1064 } 1065 1066 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1067 const char *BaseCode = nullptr; 1068 const char *ConstrainedCode = nullptr; 1069 auto BaseTokenCount = 0u; 1070 auto RequiresTokenCount = 0u; 1071 auto PrefixTokenCount = 0u; 1072 1073 auto TestRequires = [&](int Line) { 1074 const auto BaseTokens = annotate(BaseCode); 1075 const auto ConstrainedTokens = annotate(ConstrainedCode); 1076 1077 #define LINE " (Line " << Line << ')' 1078 1079 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1080 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1081 << LINE; 1082 1083 for (auto I = 0u; I < BaseTokenCount; ++I) { 1084 EXPECT_EQ( 1085 *BaseTokens[I], 1086 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1087 << I << LINE; 1088 } 1089 1090 #undef LINE 1091 }; 1092 1093 BaseCode = "template<typename T>\n" 1094 "T Pi = 3.14;"; 1095 ConstrainedCode = "template<typename T>\n" 1096 " requires Foo<T>\n" 1097 "T Pi = 3.14;"; 1098 BaseTokenCount = 11; 1099 RequiresTokenCount = 5; 1100 PrefixTokenCount = 5; 1101 TestRequires(__LINE__); 1102 1103 BaseCode = "template<typename T>\n" 1104 "struct Bar;"; 1105 ConstrainedCode = "template<typename T>\n" 1106 " requires Foo<T>\n" 1107 "struct Bar;"; 1108 BaseTokenCount = 9; 1109 TestRequires(__LINE__); 1110 1111 BaseCode = "template<typename T>\n" 1112 "struct Bar {\n" 1113 " T foo();\n" 1114 " T bar();\n" 1115 "};"; 1116 ConstrainedCode = "template<typename T>\n" 1117 " requires Foo<T>\n" 1118 "struct Bar {\n" 1119 " T foo();\n" 1120 " T bar();\n" 1121 "};"; 1122 BaseTokenCount = 21; 1123 TestRequires(__LINE__); 1124 1125 BaseCode = "template<typename T>\n" 1126 "Bar(T) -> Bar<T>;"; 1127 ConstrainedCode = "template<typename T>\n" 1128 " requires Foo<T>\n" 1129 "Bar(T) -> Bar<T>;"; 1130 BaseTokenCount = 16; 1131 TestRequires(__LINE__); 1132 1133 BaseCode = "template<typename T>\n" 1134 "T foo();"; 1135 ConstrainedCode = "template<typename T>\n" 1136 " requires Foo<T>\n" 1137 "T foo();"; 1138 BaseTokenCount = 11; 1139 TestRequires(__LINE__); 1140 1141 BaseCode = "template<typename T>\n" 1142 "T foo() {\n" 1143 " auto bar = baz();\n" 1144 " return bar + T{};\n" 1145 "}"; 1146 ConstrainedCode = "template<typename T>\n" 1147 " requires Foo<T>\n" 1148 "T foo() {\n" 1149 " auto bar = baz();\n" 1150 " return bar + T{};\n" 1151 "}"; 1152 BaseTokenCount = 26; 1153 TestRequires(__LINE__); 1154 1155 BaseCode = "template<typename T>\n" 1156 "T foo();"; 1157 ConstrainedCode = "template<typename T>\n" 1158 "T foo() requires Foo<T>;"; 1159 BaseTokenCount = 11; 1160 PrefixTokenCount = 9; 1161 TestRequires(__LINE__); 1162 1163 BaseCode = "template<typename T>\n" 1164 "T foo() {\n" 1165 " auto bar = baz();\n" 1166 " return bar + T{};\n" 1167 "}"; 1168 ConstrainedCode = "template<typename T>\n" 1169 "T foo() requires Foo<T> {\n" 1170 " auto bar = baz();\n" 1171 " return bar + T{};\n" 1172 "}"; 1173 BaseTokenCount = 26; 1174 TestRequires(__LINE__); 1175 1176 BaseCode = "template<typename T>\n" 1177 "T foo();"; 1178 ConstrainedCode = "template<typename T>\n" 1179 " requires(Foo<T>)\n" 1180 "T foo();"; 1181 BaseTokenCount = 11; 1182 RequiresTokenCount = 7; 1183 PrefixTokenCount = 5; 1184 TestRequires(__LINE__); 1185 1186 BaseCode = "template<typename T>\n" 1187 "Bar(T) -> Bar<typename T::I>;"; 1188 ConstrainedCode = "template<typename T>\n" 1189 " requires requires(T &&t) {\n" 1190 " typename T::I;\n" 1191 " }\n" 1192 "Bar(T) -> Bar<typename T::I>;"; 1193 BaseTokenCount = 19; 1194 RequiresTokenCount = 14; 1195 PrefixTokenCount = 5; 1196 TestRequires(__LINE__); 1197 1198 BaseCode = "struct [[nodiscard]] zero_t {\n" 1199 " template<class T>\n" 1200 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1201 "};"; 1202 ConstrainedCode = 1203 "struct [[nodiscard]] zero_t {\n" 1204 " template<class T>\n" 1205 " requires requires { v<T>; }\n" 1206 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1207 "};"; 1208 BaseTokenCount = 35; 1209 RequiresTokenCount = 9; 1210 PrefixTokenCount = 13; 1211 TestRequires(__LINE__); 1212 1213 BaseCode = "constexpr Foo(Foo const &other)\n" 1214 " : value{other.value} {\n" 1215 " do_magic();\n" 1216 " do_more_magic();\n" 1217 "}"; 1218 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1219 " requires std::is_copy_constructible<T>\n" 1220 " : value{other.value} {\n" 1221 " do_magic();\n" 1222 " do_more_magic();\n" 1223 "}"; 1224 BaseTokenCount = 26; 1225 RequiresTokenCount = 7; 1226 PrefixTokenCount = 8; 1227 TestRequires(__LINE__); 1228 1229 BaseCode = "constexpr Foo(Foo const &other)\n" 1230 " : value{other.value} {\n" 1231 " do_magic();\n" 1232 " do_more_magic();\n" 1233 "}"; 1234 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1235 " requires (std::is_copy_constructible<T>)\n" 1236 " : value{other.value} {\n" 1237 " do_magic();\n" 1238 " do_more_magic();\n" 1239 "}"; 1240 RequiresTokenCount = 9; 1241 TestRequires(__LINE__); 1242 } 1243 1244 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1245 auto Tokens = annotate("__asm{\n" 1246 "a:\n" 1247 "};"); 1248 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1249 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1250 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1251 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1252 } 1253 1254 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1255 auto Tokens = annotate("int (^)() = ^ ()\n" 1256 " external_source_symbol() { //\n" 1257 " return 1;\n" 1258 "};"); 1259 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1260 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1261 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1262 1263 Tokens = annotate("int *p = ^int*(){ //\n" 1264 " return nullptr;\n" 1265 "}();"); 1266 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1267 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1268 } 1269 1270 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1271 auto Tokens = annotate("void f() {\n" 1272 " //\n" 1273 " BOOL a = [b.c n] > 1;\n" 1274 "}"); 1275 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1276 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1277 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1278 } 1279 1280 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1281 auto Tokens = annotate("[]() constexpr {}"); 1282 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1283 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1284 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1285 1286 Tokens = annotate("[]() consteval {}"); 1287 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1288 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1289 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1290 1291 Tokens = annotate("[]() mutable {}"); 1292 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1293 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1294 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1295 1296 Tokens = annotate("[]() static {}"); 1297 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1298 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1299 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1300 1301 Tokens = annotate("[]() -> auto {}"); 1302 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1303 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1304 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1305 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1306 1307 Tokens = annotate("[]() -> auto & {}"); 1308 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1309 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1310 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1311 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1312 1313 Tokens = annotate("[]() -> auto * {}"); 1314 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1315 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1316 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1317 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1318 1319 Tokens = annotate("[] {}"); 1320 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1321 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1322 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1323 1324 Tokens = annotate("[] noexcept {}"); 1325 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1326 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1327 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1328 1329 Tokens = annotate("[] -> auto {}"); 1330 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1331 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1332 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1333 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1334 1335 Tokens = annotate("[] <typename T> () {}"); 1336 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1337 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1338 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1339 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1340 1341 Tokens = annotate("[] <typename T> {}"); 1342 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1343 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1344 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1345 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1346 1347 Tokens = annotate("[] <typename... T> () {}"); 1348 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1349 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1350 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1351 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1352 1353 Tokens = annotate("[] <typename... T> {}"); 1354 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1355 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1356 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1357 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1358 1359 Tokens = annotate("[] <int... T> () {}"); 1360 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1361 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1362 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1363 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1364 1365 Tokens = annotate("[] <int... T> {}"); 1366 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1367 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1368 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1369 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1370 1371 Tokens = annotate("[] <Foo... T> () {}"); 1372 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1373 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1374 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1375 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1376 1377 Tokens = annotate("[] <Foo... T> {}"); 1378 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1379 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1380 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1381 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1382 1383 // Lambdas with a requires-clause 1384 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1385 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1386 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1387 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1388 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1389 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1390 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1391 1392 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1393 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1394 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1395 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1396 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1397 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1398 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1399 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1400 1401 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1402 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1403 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1404 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1405 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1406 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1407 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1408 1409 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1410 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1411 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1412 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1413 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1414 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1415 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1416 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1417 1418 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1419 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1420 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1421 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1422 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1423 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1424 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1425 1426 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1427 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1428 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1429 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1430 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1431 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1432 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1433 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1434 1435 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1436 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1437 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1438 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1439 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1440 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1441 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1442 1443 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1444 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1445 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1446 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1447 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1448 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1449 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1450 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1451 1452 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1453 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1454 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1455 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1456 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1457 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1458 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1459 1460 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1461 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1462 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1463 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1464 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1465 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1466 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1467 1468 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1469 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1470 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1471 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1472 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1473 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1474 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1475 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1476 1477 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1478 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1479 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1480 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1481 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1482 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1483 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1484 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1485 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1486 } 1487 1488 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1489 auto Tokens = annotate("template <typename T>\n" 1490 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1491 "string OldFunction(const string ¶meter) {}"); 1492 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1493 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1494 1495 Tokens = annotate("template <typename T>\n" 1496 "A(T) noexcept;"); 1497 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1498 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1499 } 1500 1501 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1502 auto Tokens = annotate("void f [[noreturn]] ();"); 1503 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1504 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1505 1506 Tokens = annotate("void f [[noreturn]] () {}"); 1507 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1508 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1509 } 1510 1511 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1512 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1513 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1514 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1515 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1516 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1517 } 1518 1519 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1520 auto Tokens = annotate("auto f() -> int;"); 1521 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1522 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1523 1524 Tokens = annotate("auto operator->() -> int;"); 1525 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1526 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1527 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1528 1529 Tokens = annotate("auto operator++(int) -> int;"); 1530 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1531 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1532 1533 Tokens = annotate("auto operator=() -> int;"); 1534 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1535 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1536 1537 Tokens = annotate("auto operator=(int) -> int;"); 1538 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1539 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1540 1541 Tokens = annotate("auto foo() -> auto { return Val; }"); 1542 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1543 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1544 1545 Tokens = annotate("struct S { auto bar() const -> int; };"); 1546 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1547 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1548 1549 // Not trailing return arrows 1550 Tokens = annotate("auto a = b->c;"); 1551 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1552 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1553 1554 Tokens = annotate("auto a = (b)->c;"); 1555 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1556 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1557 1558 Tokens = annotate("auto a = b()->c;"); 1559 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1560 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1561 1562 Tokens = annotate("auto a = b->c();"); 1563 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1564 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1565 1566 Tokens = annotate("decltype(auto) a = b()->c;"); 1567 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1568 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1569 1570 Tokens = annotate("void f() { auto a = b->c(); }"); 1571 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1572 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1573 1574 Tokens = annotate("void f() { auto a = b()->c; }"); 1575 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1576 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1577 1578 // Mixed 1579 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1580 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1581 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1582 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1583 } 1584 1585 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1586 auto Annotate = [this](llvm::StringRef Code) { 1587 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1588 }; 1589 // Test that unary operators get labeled as such and that operators like '++' 1590 // don't get split. 1591 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1592 tok::tilde, tok::amp, tok::pipe, 1593 tok::caret, tok::plusplus, tok::minusminus}; 1594 for (auto Kind : Unary) { 1595 auto Tokens = 1596 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1597 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1598 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1599 } 1600 // Operators formed by joining two operators like '^~'. For some of these 1601 // joined operators, we don't have a separate type, so we only test for their 1602 // precedence. 1603 std::pair<prec::Level, std::string> JoinedBinary[] = { 1604 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1605 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1606 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1607 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1608 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1609 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1610 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1611 {prec::Equality, "=="}, {prec::Equality, "!="}, 1612 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1613 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1614 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1615 }; 1616 for (auto Operator : JoinedBinary) { 1617 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1618 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1619 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1620 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1621 } 1622 // '~^' and '^~' can be unary as well as binary operators. 1623 auto Tokens = Annotate("x = ~^x;"); 1624 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1625 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1626 Tokens = Annotate("x = ^~x;"); 1627 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1628 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1629 // The unary operators '~&' and '~|' can only be unary operators. The current 1630 // implementation treats each of them as separate unary '~' and '&' or '|' 1631 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1632 // there is a test that there is no space in between. And even if a new line 1633 // is inserted between the '~' and '|', the semantic meaning is the same as 1634 // the joined operator, so the CanBreakBefore property doesn't need to be 1635 // false for the second operator. 1636 Tokens = Annotate("x = ~&x;"); 1637 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1638 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1639 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1640 Tokens = Annotate("x = ~|x;"); 1641 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1642 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1643 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1644 // Test for block label colons. 1645 Tokens = Annotate("begin : x\n" 1646 "end : x"); 1647 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1648 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1649 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1650 // Test that the dimension colon is annotated correctly. 1651 Tokens = Annotate("var [1 : 0] x;"); 1652 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1653 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1654 Tokens = Annotate("extern function [1 : 0] x;"); 1655 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1656 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1657 Tokens = Annotate("module test\n" 1658 " (input wire [7 : 0] a[7 : 0]);\n" 1659 "endmodule"); 1660 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1661 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1662 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1663 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1664 // Test case labels and ternary operators. 1665 Tokens = Annotate("case (x)\n" 1666 " x:\n" 1667 " x;\n" 1668 "endcase\n"); 1669 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1670 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1671 Tokens = Annotate("case (x)\n" 1672 " x ? x : x:\n" 1673 " x;\n" 1674 "endcase\n"); 1675 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1676 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1677 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1678 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1679 // Non-blocking assignments. 1680 Tokens = Annotate("a <= b;"); 1681 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1682 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1683 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1684 Tokens = Annotate("if (a <= b) break;"); 1685 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1686 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1687 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1688 Tokens = Annotate("a <= b <= a;"); 1689 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1690 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1691 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1692 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1693 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1694 1695 // Port lists in module instantiation. 1696 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1697 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1698 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1699 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1700 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1701 "instance_2(port_2);"); 1702 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1703 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1704 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1705 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1706 1707 // Condition parentheses. 1708 Tokens = Annotate("assert (x);"); 1709 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1710 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1711 Tokens = Annotate("assert #0 (x);"); 1712 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1713 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1714 Tokens = Annotate("assert final (x);"); 1715 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1716 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1717 Tokens = Annotate("foreach (x[x]) continue;"); 1718 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1719 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1720 Tokens = Annotate("repeat (x[x]) continue;"); 1721 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1722 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1723 Tokens = Annotate("case (x) endcase;"); 1724 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1725 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1726 1727 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1728 // future, please adapt if those tokens get annotated. This test is only here 1729 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1730 Tokens = Annotate("always @(posedge x, posedge y);"); 1731 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1732 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1733 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1734 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1735 } 1736 1737 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1738 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1739 1740 // The TT_Unknown is clearly not binding for the future, please adapt if those 1741 // tokens get annotated. 1742 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1743 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1744 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1745 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1746 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1747 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1748 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1749 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1750 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1751 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1752 1753 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1754 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1755 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1756 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1757 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1758 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1759 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1760 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1761 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1762 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1763 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1764 } 1765 1766 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 1767 auto Tokens = annotate("if (x) {}"); 1768 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1769 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1770 Tokens = annotate("if constexpr (x) {}"); 1771 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1772 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1773 Tokens = annotate("if CONSTEXPR (x) {}"); 1774 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1775 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1776 Tokens = annotate("if (x) {} else if (x) {}"); 1777 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1778 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1779 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 1780 } 1781 1782 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 1783 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 1784 1785 auto Tokens = annotate("int? a;", Style); 1786 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 1787 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1788 1789 Tokens = annotate("int? a = 1;", Style); 1790 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 1791 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1792 1793 Tokens = annotate("int?)", Style); 1794 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1795 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1796 1797 Tokens = annotate("int?>", Style); 1798 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1799 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1800 1801 Tokens = annotate("cond? id : id2", Style); 1802 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 1803 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1804 1805 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 1806 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 1807 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1808 } 1809 1810 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 1811 auto Tokens = annotate("{ x: break; }"); 1812 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1813 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1814 Tokens = annotate("{ case x: break; }"); 1815 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1816 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1817 Tokens = annotate("{ x: { break; } }"); 1818 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1819 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1820 Tokens = annotate("{ case x: { break; } }"); 1821 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1822 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1823 } 1824 1825 TEST_F(TokenAnnotatorTest, UnderstandsNestedBlocks) { 1826 // The closing braces are not annotated. It doesn't seem to cause a problem. 1827 // So we only test for the opening braces. 1828 auto Tokens = annotate("{\n" 1829 " {\n" 1830 " { int a = 0; }\n" 1831 " }\n" 1832 " {}\n" 1833 "}"); 1834 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1835 EXPECT_BRACE_KIND(Tokens[0], BK_Block); 1836 EXPECT_BRACE_KIND(Tokens[1], BK_Block); 1837 EXPECT_BRACE_KIND(Tokens[2], BK_Block); 1838 EXPECT_BRACE_KIND(Tokens[10], BK_Block); 1839 } 1840 1841 } // namespace 1842 } // namespace format 1843 } // namespace clang 1844