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 } 910 911 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 912 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 913 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 914 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 915 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 916 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 917 918 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 919 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 920 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 921 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 922 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 923 924 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 925 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 926 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 927 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 928 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 929 930 Tokens = annotate("foo(requires(const T t) {});"); 931 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 932 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 933 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 934 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 935 936 Tokens = annotate("foo(requires(const int t) {});"); 937 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 938 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 939 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 940 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 941 942 Tokens = annotate("foo(requires(const T t) {});"); 943 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 944 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 945 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 946 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 947 948 Tokens = annotate("foo(requires(int const* volatile t) {});"); 949 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 950 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 951 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 952 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 953 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 954 955 Tokens = annotate("foo(requires(T const* volatile t) {});"); 956 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 957 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 958 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 959 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 960 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 961 962 Tokens = annotate("foo(requires(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[5], tok::amp, TT_PointerOrReference); 967 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 968 969 Tokens = annotate("foo(requires(T&& t) {});"); 970 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 971 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 972 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 973 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 974 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 975 976 Tokens = annotate("bool foo = requires(T& t) {};"); 977 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 978 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 979 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 980 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 981 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 982 983 Tokens = annotate("bool foo = requires(T&& t) {};"); 984 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 985 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 986 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 987 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 988 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 989 990 Tokens = 991 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 992 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 993 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 994 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 995 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 996 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 997 998 Tokens = annotate("template <typename T>\n" 999 "concept C = requires(T T) {\n" 1000 " requires Bar<T> && Foo<T>;\n" 1001 "};"); 1002 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1003 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1004 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1005 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1006 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1007 TT_RequiresClauseInARequiresExpression); 1008 1009 Tokens = annotate("template <typename T>\n" 1010 "concept C = requires(T T) {\n" 1011 " { t.func() } -> std::same_as<int>;" 1012 " requires Bar<T> && Foo<T>;\n" 1013 "};"); 1014 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1015 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1016 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1017 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1018 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1019 TT_RequiresClauseInARequiresExpression); 1020 1021 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1022 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1023 "requires true; };"); 1024 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1025 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1026 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1027 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1028 } 1029 1030 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1031 // Everything after #pragma region should be ImplicitStringLiteral 1032 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1033 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1034 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1035 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1036 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1037 1038 // Make sure it's annotated correctly inside a function as well 1039 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1040 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1041 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1042 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1043 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1044 } 1045 1046 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1047 const char *BaseCode = nullptr; 1048 const char *ConstrainedCode = nullptr; 1049 auto BaseTokenCount = 0u; 1050 auto RequiresTokenCount = 0u; 1051 auto PrefixTokenCount = 0u; 1052 1053 auto TestRequires = [&](int Line) { 1054 const auto BaseTokens = annotate(BaseCode); 1055 const auto ConstrainedTokens = annotate(ConstrainedCode); 1056 1057 #define LINE " (Line " << Line << ')' 1058 1059 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1060 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1061 << LINE; 1062 1063 for (auto I = 0u; I < BaseTokenCount; ++I) { 1064 EXPECT_EQ( 1065 *BaseTokens[I], 1066 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1067 << I << LINE; 1068 } 1069 1070 #undef LINE 1071 }; 1072 1073 BaseCode = "template<typename T>\n" 1074 "T Pi = 3.14;"; 1075 ConstrainedCode = "template<typename T>\n" 1076 " requires Foo<T>\n" 1077 "T Pi = 3.14;"; 1078 BaseTokenCount = 11; 1079 RequiresTokenCount = 5; 1080 PrefixTokenCount = 5; 1081 TestRequires(__LINE__); 1082 1083 BaseCode = "template<typename T>\n" 1084 "struct Bar;"; 1085 ConstrainedCode = "template<typename T>\n" 1086 " requires Foo<T>\n" 1087 "struct Bar;"; 1088 BaseTokenCount = 9; 1089 TestRequires(__LINE__); 1090 1091 BaseCode = "template<typename T>\n" 1092 "struct Bar {\n" 1093 " T foo();\n" 1094 " T bar();\n" 1095 "};"; 1096 ConstrainedCode = "template<typename T>\n" 1097 " requires Foo<T>\n" 1098 "struct Bar {\n" 1099 " T foo();\n" 1100 " T bar();\n" 1101 "};"; 1102 BaseTokenCount = 21; 1103 TestRequires(__LINE__); 1104 1105 BaseCode = "template<typename T>\n" 1106 "Bar(T) -> Bar<T>;"; 1107 ConstrainedCode = "template<typename T>\n" 1108 " requires Foo<T>\n" 1109 "Bar(T) -> Bar<T>;"; 1110 BaseTokenCount = 16; 1111 TestRequires(__LINE__); 1112 1113 BaseCode = "template<typename T>\n" 1114 "T foo();"; 1115 ConstrainedCode = "template<typename T>\n" 1116 " requires Foo<T>\n" 1117 "T foo();"; 1118 BaseTokenCount = 11; 1119 TestRequires(__LINE__); 1120 1121 BaseCode = "template<typename T>\n" 1122 "T foo() {\n" 1123 " auto bar = baz();\n" 1124 " return bar + T{};\n" 1125 "}"; 1126 ConstrainedCode = "template<typename T>\n" 1127 " requires Foo<T>\n" 1128 "T foo() {\n" 1129 " auto bar = baz();\n" 1130 " return bar + T{};\n" 1131 "}"; 1132 BaseTokenCount = 26; 1133 TestRequires(__LINE__); 1134 1135 BaseCode = "template<typename T>\n" 1136 "T foo();"; 1137 ConstrainedCode = "template<typename T>\n" 1138 "T foo() requires Foo<T>;"; 1139 BaseTokenCount = 11; 1140 PrefixTokenCount = 9; 1141 TestRequires(__LINE__); 1142 1143 BaseCode = "template<typename T>\n" 1144 "T foo() {\n" 1145 " auto bar = baz();\n" 1146 " return bar + T{};\n" 1147 "}"; 1148 ConstrainedCode = "template<typename T>\n" 1149 "T foo() requires Foo<T> {\n" 1150 " auto bar = baz();\n" 1151 " return bar + T{};\n" 1152 "}"; 1153 BaseTokenCount = 26; 1154 TestRequires(__LINE__); 1155 1156 BaseCode = "template<typename T>\n" 1157 "T foo();"; 1158 ConstrainedCode = "template<typename T>\n" 1159 " requires(Foo<T>)\n" 1160 "T foo();"; 1161 BaseTokenCount = 11; 1162 RequiresTokenCount = 7; 1163 PrefixTokenCount = 5; 1164 TestRequires(__LINE__); 1165 1166 BaseCode = "template<typename T>\n" 1167 "Bar(T) -> Bar<typename T::I>;"; 1168 ConstrainedCode = "template<typename T>\n" 1169 " requires requires(T &&t) {\n" 1170 " typename T::I;\n" 1171 " }\n" 1172 "Bar(T) -> Bar<typename T::I>;"; 1173 BaseTokenCount = 19; 1174 RequiresTokenCount = 14; 1175 PrefixTokenCount = 5; 1176 TestRequires(__LINE__); 1177 1178 BaseCode = "struct [[nodiscard]] zero_t {\n" 1179 " template<class T>\n" 1180 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1181 "};"; 1182 ConstrainedCode = 1183 "struct [[nodiscard]] zero_t {\n" 1184 " template<class T>\n" 1185 " requires requires { v<T>; }\n" 1186 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1187 "};"; 1188 BaseTokenCount = 35; 1189 RequiresTokenCount = 9; 1190 PrefixTokenCount = 13; 1191 TestRequires(__LINE__); 1192 1193 BaseCode = "constexpr Foo(Foo const &other)\n" 1194 " : value{other.value} {\n" 1195 " do_magic();\n" 1196 " do_more_magic();\n" 1197 "}"; 1198 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1199 " requires std::is_copy_constructible<T>\n" 1200 " : value{other.value} {\n" 1201 " do_magic();\n" 1202 " do_more_magic();\n" 1203 "}"; 1204 BaseTokenCount = 26; 1205 RequiresTokenCount = 7; 1206 PrefixTokenCount = 8; 1207 TestRequires(__LINE__); 1208 1209 BaseCode = "constexpr Foo(Foo const &other)\n" 1210 " : value{other.value} {\n" 1211 " do_magic();\n" 1212 " do_more_magic();\n" 1213 "}"; 1214 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1215 " requires (std::is_copy_constructible<T>)\n" 1216 " : value{other.value} {\n" 1217 " do_magic();\n" 1218 " do_more_magic();\n" 1219 "}"; 1220 RequiresTokenCount = 9; 1221 TestRequires(__LINE__); 1222 } 1223 1224 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1225 auto Tokens = annotate("__asm{\n" 1226 "a:\n" 1227 "};"); 1228 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1229 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1230 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1231 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1232 } 1233 1234 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1235 auto Tokens = annotate("int (^)() = ^ ()\n" 1236 " external_source_symbol() { //\n" 1237 " return 1;\n" 1238 "};"); 1239 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1240 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1241 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1242 1243 Tokens = annotate("int *p = ^int*(){ //\n" 1244 " return nullptr;\n" 1245 "}();"); 1246 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1247 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1248 } 1249 1250 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1251 auto Tokens = annotate("void f() {\n" 1252 " //\n" 1253 " BOOL a = [b.c n] > 1;\n" 1254 "}"); 1255 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1256 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1257 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1258 } 1259 1260 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1261 auto Tokens = annotate("[]() constexpr {}"); 1262 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1263 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1264 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1265 1266 Tokens = annotate("[]() consteval {}"); 1267 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1268 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1269 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1270 1271 Tokens = annotate("[]() mutable {}"); 1272 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1273 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1274 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1275 1276 Tokens = annotate("[]() static {}"); 1277 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1278 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1279 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1280 1281 Tokens = annotate("[]() -> auto {}"); 1282 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1283 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1284 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1285 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1286 1287 Tokens = annotate("[]() -> auto & {}"); 1288 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1289 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1290 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1291 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1292 1293 Tokens = annotate("[]() -> auto * {}"); 1294 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1295 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1296 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1297 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1298 1299 Tokens = annotate("[] {}"); 1300 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1301 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1302 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1303 1304 Tokens = annotate("[] noexcept {}"); 1305 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1306 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1307 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1308 1309 Tokens = annotate("[] -> auto {}"); 1310 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1311 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1312 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1313 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1314 1315 Tokens = annotate("[] <typename T> () {}"); 1316 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1317 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1318 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1319 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1320 1321 Tokens = annotate("[] <typename T> {}"); 1322 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1323 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1324 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1325 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1326 1327 Tokens = annotate("[] <typename... T> () {}"); 1328 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1329 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1330 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1331 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1332 1333 Tokens = annotate("[] <typename... T> {}"); 1334 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1335 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1336 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1337 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1338 1339 Tokens = annotate("[] <int... T> () {}"); 1340 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1341 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1342 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1343 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1344 1345 Tokens = annotate("[] <int... T> {}"); 1346 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1347 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1348 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1349 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1350 1351 Tokens = annotate("[] <Foo... T> () {}"); 1352 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1353 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1354 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1355 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1356 1357 Tokens = annotate("[] <Foo... T> {}"); 1358 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1359 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1360 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1361 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1362 1363 // Lambdas with a requires-clause 1364 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1365 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1366 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1367 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1368 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1369 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1370 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1371 1372 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1373 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1374 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1375 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1376 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1377 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1378 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1379 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1380 1381 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1382 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1383 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1384 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1385 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1386 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1387 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1388 1389 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1390 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1391 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1392 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1393 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1394 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1395 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1396 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1397 1398 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1399 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1400 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1401 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1402 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1403 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1404 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1405 1406 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1407 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1408 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1409 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1410 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1411 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1412 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1413 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1414 1415 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1416 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1417 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1418 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1419 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1420 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1421 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1422 1423 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1424 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1425 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1426 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1427 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1428 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1429 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1430 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1431 1432 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1433 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1434 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1435 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1436 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1437 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1438 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1439 1440 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1441 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1442 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1443 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1444 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1445 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1446 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1447 1448 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1449 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1450 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1451 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1452 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1453 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1454 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1455 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1456 1457 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1458 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1459 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1460 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1461 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1462 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1463 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1464 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1465 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1466 } 1467 1468 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1469 auto Tokens = annotate("template <typename T>\n" 1470 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1471 "string OldFunction(const string ¶meter) {}"); 1472 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1473 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1474 1475 Tokens = annotate("template <typename T>\n" 1476 "A(T) noexcept;"); 1477 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1478 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1479 } 1480 1481 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1482 auto Tokens = annotate("void f [[noreturn]] ();"); 1483 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1484 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1485 1486 Tokens = annotate("void f [[noreturn]] () {}"); 1487 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1488 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1489 } 1490 1491 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1492 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1493 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1494 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1495 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1496 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1497 } 1498 1499 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1500 auto Tokens = annotate("auto f() -> int;"); 1501 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1502 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1503 1504 Tokens = annotate("auto operator->() -> int;"); 1505 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1506 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1507 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1508 1509 Tokens = annotate("auto operator++(int) -> int;"); 1510 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1511 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1512 1513 Tokens = annotate("auto operator=() -> int;"); 1514 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1515 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1516 1517 Tokens = annotate("auto operator=(int) -> int;"); 1518 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1519 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1520 1521 Tokens = annotate("auto foo() -> auto { return Val; }"); 1522 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1523 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1524 1525 Tokens = annotate("struct S { auto bar() const -> int; };"); 1526 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1527 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1528 1529 // Not trailing return arrows 1530 Tokens = annotate("auto a = b->c;"); 1531 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1532 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1533 1534 Tokens = annotate("auto a = (b)->c;"); 1535 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1536 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1537 1538 Tokens = annotate("auto a = b()->c;"); 1539 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1540 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1541 1542 Tokens = annotate("auto a = b->c();"); 1543 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1544 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1545 1546 Tokens = annotate("decltype(auto) a = b()->c;"); 1547 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1548 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1549 1550 Tokens = annotate("void f() { auto a = b->c(); }"); 1551 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1552 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1553 1554 Tokens = annotate("void f() { auto a = b()->c; }"); 1555 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1556 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1557 1558 // Mixed 1559 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1560 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1561 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1562 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1563 } 1564 1565 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1566 auto Annotate = [this](llvm::StringRef Code) { 1567 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1568 }; 1569 // Test that unary operators get labeled as such and that operators like '++' 1570 // don't get split. 1571 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1572 tok::tilde, tok::amp, tok::pipe, 1573 tok::caret, tok::plusplus, tok::minusminus}; 1574 for (auto Kind : Unary) { 1575 auto Tokens = 1576 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1577 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1578 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1579 } 1580 // Operators formed by joining two operators like '^~'. For some of these 1581 // joined operators, we don't have a separate type, so we only test for their 1582 // precedence. 1583 std::pair<prec::Level, std::string> JoinedBinary[] = { 1584 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1585 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1586 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1587 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1588 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1589 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1590 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1591 {prec::Equality, "=="}, {prec::Equality, "!="}, 1592 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1593 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1594 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1595 }; 1596 for (auto Operator : JoinedBinary) { 1597 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1598 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1599 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1600 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1601 } 1602 // '~^' and '^~' can be unary as well as binary operators. 1603 auto Tokens = Annotate("x = ~^x;"); 1604 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1605 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1606 Tokens = Annotate("x = ^~x;"); 1607 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1608 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1609 // The unary operators '~&' and '~|' can only be unary operators. The current 1610 // implementation treats each of them as separate unary '~' and '&' or '|' 1611 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1612 // there is a test that there is no space in between. And even if a new line 1613 // is inserted between the '~' and '|', the semantic meaning is the same as 1614 // the joined operator, so the CanBreakBefore property doesn't need to be 1615 // false for the second operator. 1616 Tokens = Annotate("x = ~&x;"); 1617 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1618 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1619 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1620 Tokens = Annotate("x = ~|x;"); 1621 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1622 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1623 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1624 // Test for block label colons. 1625 Tokens = Annotate("begin : x\n" 1626 "end : x"); 1627 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1628 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1629 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1630 // Test that the dimension colon is annotated correctly. 1631 Tokens = Annotate("var [1 : 0] x;"); 1632 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1633 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1634 Tokens = Annotate("extern function [1 : 0] x;"); 1635 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1636 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1637 Tokens = Annotate("module test\n" 1638 " (input wire [7 : 0] a[7 : 0]);\n" 1639 "endmodule"); 1640 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1641 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1642 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1643 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1644 // Test case labels and ternary operators. 1645 Tokens = Annotate("case (x)\n" 1646 " x:\n" 1647 " x;\n" 1648 "endcase\n"); 1649 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1650 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1651 Tokens = Annotate("case (x)\n" 1652 " x ? x : x:\n" 1653 " x;\n" 1654 "endcase\n"); 1655 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1656 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1657 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1658 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1659 // Non-blocking assignments. 1660 Tokens = Annotate("a <= b;"); 1661 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1662 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1663 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1664 Tokens = Annotate("if (a <= b) break;"); 1665 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1666 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1667 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1668 Tokens = Annotate("a <= b <= a;"); 1669 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1670 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1671 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1672 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1673 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1674 1675 // Port lists in module instantiation. 1676 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1677 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1678 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1679 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1680 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1681 "instance_2(port_2);"); 1682 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1683 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1684 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1685 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1686 1687 // Condition parentheses. 1688 Tokens = Annotate("assert (x);"); 1689 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1690 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1691 Tokens = Annotate("assert #0 (x);"); 1692 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1693 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1694 Tokens = Annotate("assert final (x);"); 1695 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1696 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1697 Tokens = Annotate("foreach (x[x]) continue;"); 1698 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1699 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1700 Tokens = Annotate("repeat (x[x]) continue;"); 1701 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1702 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1703 Tokens = Annotate("case (x) endcase;"); 1704 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1705 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1706 1707 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1708 // future, please adapt if those tokens get annotated. This test is only here 1709 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1710 Tokens = Annotate("always @(posedge x, posedge y);"); 1711 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1712 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1713 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1714 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1715 } 1716 1717 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1718 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1719 1720 // The TT_Unknown is clearly not binding for the future, please adapt if those 1721 // tokens get annotated. 1722 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1723 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1724 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1725 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1726 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1727 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1728 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1729 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1730 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1731 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1732 1733 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1734 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1735 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1736 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1737 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1738 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1739 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1740 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1741 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1742 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1743 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1744 } 1745 1746 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 1747 auto Tokens = annotate("if (x) {}"); 1748 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1749 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1750 Tokens = annotate("if constexpr (x) {}"); 1751 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1752 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1753 Tokens = annotate("if CONSTEXPR (x) {}"); 1754 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1755 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1756 Tokens = annotate("if (x) {} else if (x) {}"); 1757 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1758 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1759 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 1760 } 1761 1762 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 1763 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 1764 1765 auto Tokens = annotate("int? a;", Style); 1766 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 1767 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1768 1769 Tokens = annotate("int? a = 1;", Style); 1770 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 1771 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1772 1773 Tokens = annotate("int?)", Style); 1774 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1775 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1776 1777 Tokens = annotate("int?>", Style); 1778 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1779 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1780 1781 Tokens = annotate("cond? id : id2", Style); 1782 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 1783 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1784 1785 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 1786 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 1787 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1788 } 1789 1790 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 1791 auto Tokens = annotate("{ x: break; }"); 1792 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1793 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1794 Tokens = annotate("{ case x: break; }"); 1795 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1796 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1797 Tokens = annotate("{ x: { break; } }"); 1798 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1799 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1800 Tokens = annotate("{ case x: { break; } }"); 1801 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1802 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1803 } 1804 1805 TEST_F(TokenAnnotatorTest, UnderstandsNestedBlocks) { 1806 // The closing braces are not annotated. It doesn't seem to cause a problem. 1807 // So we only test for the opening braces. 1808 auto Tokens = annotate("{\n" 1809 " {\n" 1810 " { int a = 0; }\n" 1811 " }\n" 1812 " {}\n" 1813 "}"); 1814 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1815 EXPECT_BRACE_KIND(Tokens[0], BK_Block); 1816 EXPECT_BRACE_KIND(Tokens[1], BK_Block); 1817 EXPECT_BRACE_KIND(Tokens[2], BK_Block); 1818 EXPECT_BRACE_KIND(Tokens[10], BK_Block); 1819 } 1820 1821 } // namespace 1822 } // namespace format 1823 } // namespace clang 1824