1 //===- unittest/Format/TokenAnnotatorTest.cpp - Formatting unit tests -----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Format/Format.h" 10 11 #include "FormatTestUtils.h" 12 #include "TestLexer.h" 13 #include "gtest/gtest.h" 14 15 namespace clang { 16 namespace format { 17 18 // Not really the equality, but everything we need. 19 static bool operator==(const FormatToken &LHS, 20 const FormatToken &RHS) noexcept { 21 return LHS.Tok.getKind() == RHS.Tok.getKind() && 22 LHS.getType() == RHS.getType(); 23 } 24 25 namespace { 26 27 class TokenAnnotatorTest : public ::testing::Test { 28 protected: 29 TokenList annotate(llvm::StringRef Code, 30 const FormatStyle &Style = getLLVMStyle()) { 31 return TestLexer(Allocator, Buffers, Style).annotate(Code); 32 } 33 llvm::SpecificBumpPtrAllocator<FormatToken> Allocator; 34 std::vector<std::unique_ptr<llvm::MemoryBuffer>> Buffers; 35 }; 36 37 #define EXPECT_TOKEN_KIND(FormatTok, Kind) \ 38 EXPECT_EQ((FormatTok)->Tok.getKind(), Kind) << *(FormatTok) 39 #define EXPECT_TOKEN_TYPE(FormatTok, Type) \ 40 EXPECT_EQ((FormatTok)->getType(), Type) << *(FormatTok) 41 #define EXPECT_TOKEN_PRECEDENCE(FormatTok, Prec) \ 42 EXPECT_EQ((FormatTok)->getPrecedence(), Prec) << *(FormatTok) 43 #define EXPECT_TOKEN(FormatTok, Kind, Type) \ 44 do { \ 45 EXPECT_TOKEN_KIND(FormatTok, Kind); \ 46 EXPECT_TOKEN_TYPE(FormatTok, Type); \ 47 } while (false) 48 49 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfStarAndAmp) { 50 auto Tokens = annotate("auto x = [](const decltype(x) &ptr) {};"); 51 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 52 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 53 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 54 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 55 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 56 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 57 58 Tokens = annotate("auto x = [](const decltype(x) *ptr) {};"); 59 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 60 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 61 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 62 63 Tokens = annotate("#define lambda [](const decltype(x) &ptr) {}"); 64 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 65 EXPECT_TOKEN(Tokens[7], tok::kw_decltype, TT_Unknown); 66 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_TypeDeclarationParen); 67 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_Unknown); 68 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 69 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 70 71 Tokens = annotate("#define lambda [](const decltype(x) *ptr) {}"); 72 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 73 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_TypeDeclarationParen); 74 EXPECT_TOKEN(Tokens[11], tok::star, TT_PointerOrReference); 75 76 Tokens = annotate("void f() {\n" 77 " while (p < a && *p == 'a')\n" 78 " p++;\n" 79 "}"); 80 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 81 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 82 EXPECT_TOKEN(Tokens[11], tok::star, TT_UnaryOperator); 83 84 Tokens = annotate("case *x:"); 85 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 86 EXPECT_TOKEN(Tokens[1], tok::star, TT_UnaryOperator); 87 Tokens = annotate("case &x:"); 88 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 89 EXPECT_TOKEN(Tokens[1], tok::amp, TT_UnaryOperator); 90 91 Tokens = annotate("bool b = 3 == int{3} && true;\n"); 92 EXPECT_EQ(Tokens.size(), 13u) << Tokens; 93 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 94 95 Tokens = annotate("struct {\n" 96 "} *ptr;"); 97 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 98 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 99 Tokens = annotate("union {\n" 100 "} *ptr;"); 101 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 102 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 103 Tokens = annotate("class {\n" 104 "} *ptr;"); 105 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 106 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 107 108 Tokens = annotate("struct {\n" 109 "} &&ptr = {};"); 110 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 111 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 112 Tokens = annotate("union {\n" 113 "} &&ptr = {};"); 114 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 115 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 116 Tokens = annotate("class {\n" 117 "} &&ptr = {};"); 118 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 119 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 120 Tokens = annotate("int i = int{42} * 2;"); 121 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 122 EXPECT_TOKEN(Tokens[7], tok::star, TT_BinaryOperator); 123 124 Tokens = annotate("delete[] *ptr;"); 125 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 126 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 127 Tokens = annotate("delete[] **ptr;"); 128 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 129 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 130 EXPECT_TOKEN(Tokens[4], tok::star, TT_UnaryOperator); 131 Tokens = annotate("delete[] *(ptr);"); 132 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 133 EXPECT_TOKEN(Tokens[3], tok::star, TT_UnaryOperator); 134 135 Tokens = annotate("void f() { void (*fnptr)(char* foo); }"); 136 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 137 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 138 // FIXME: The star of a function pointer probably makes more sense as 139 // TT_PointerOrReference. 140 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 141 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 142 143 Tokens = annotate("void f() { void (*fnptr)(t* foo); }"); 144 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 145 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 146 EXPECT_TOKEN(Tokens[7], tok::star, TT_UnaryOperator); 147 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 148 149 Tokens = annotate("int f3() { return sizeof(Foo&); }"); 150 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 151 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 152 153 Tokens = annotate("int f4() { return sizeof(Foo&&); }"); 154 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 155 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 156 157 Tokens = annotate("void f5() { int f6(Foo&, Bar&); }"); 158 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 159 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 160 EXPECT_TOKEN(Tokens[12], tok::amp, TT_PointerOrReference); 161 162 Tokens = annotate("void f7() { int f8(Foo&&, Bar&&); }"); 163 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 164 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 165 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_PointerOrReference); 166 167 Tokens = annotate("Type1 &val1 = val2;"); 168 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 169 EXPECT_TOKEN(Tokens[1], tok::amp, TT_PointerOrReference); 170 171 Tokens = annotate("Type1 *val1 = &val2;"); 172 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 173 EXPECT_TOKEN(Tokens[1], tok::star, TT_PointerOrReference); 174 EXPECT_TOKEN(Tokens[4], tok::amp, TT_UnaryOperator); 175 176 Tokens = annotate("val1 & val2;"); 177 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 178 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 179 180 Tokens = annotate("val1 & val2.member;"); 181 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 182 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 183 184 Tokens = annotate("val1 & val2.*member;"); 185 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 186 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 187 188 Tokens = annotate("val1.*member & val2;"); 189 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 190 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 191 192 Tokens = annotate("val1 & val2->*member;"); 193 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 194 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 195 196 Tokens = annotate("val1->member & val2;"); 197 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 198 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 199 200 Tokens = annotate("val1 & val2 & val3;"); 201 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 202 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 203 EXPECT_TOKEN(Tokens[3], tok::amp, TT_BinaryOperator); 204 205 Tokens = annotate("val1 & val2 // comment\n" 206 " & val3;"); 207 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 208 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 209 EXPECT_TOKEN(Tokens[4], tok::amp, TT_BinaryOperator); 210 211 Tokens = 212 annotate("val1 & val2.member & val3.member() & val4 & val5->member;"); 213 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 214 EXPECT_TOKEN(Tokens[1], tok::amp, TT_BinaryOperator); 215 EXPECT_TOKEN(Tokens[5], tok::amp, TT_BinaryOperator); 216 EXPECT_TOKEN(Tokens[11], tok::amp, TT_BinaryOperator); 217 EXPECT_TOKEN(Tokens[13], tok::amp, TT_BinaryOperator); 218 219 Tokens = annotate("class c {\n" 220 " void func(type &a) { a & member; }\n" 221 " anotherType &member;\n" 222 "}"); 223 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 224 EXPECT_TOKEN(Tokens[7], tok::amp, TT_PointerOrReference); 225 EXPECT_TOKEN(Tokens[12], tok::amp, TT_BinaryOperator); 226 EXPECT_TOKEN(Tokens[17], tok::amp, TT_PointerOrReference); 227 228 Tokens = annotate("struct S {\n" 229 " auto Mem = C & D;\n" 230 "}"); 231 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 232 EXPECT_TOKEN(Tokens[7], tok::amp, TT_BinaryOperator); 233 234 Tokens = 235 annotate("template <typename T> void swap() noexcept(Bar<T> && Foo<T>);"); 236 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 237 EXPECT_TOKEN(Tokens[15], tok::ampamp, TT_BinaryOperator); 238 239 Tokens = annotate("template <typename T> struct S {\n" 240 " explicit(Bar<T> && Foo<T>) S(const S &);\n" 241 "};"); 242 ASSERT_EQ(Tokens.size(), 30u) << Tokens; 243 EXPECT_TOKEN(Tokens[14], tok::ampamp, TT_BinaryOperator); 244 245 Tokens = annotate("template <bool B = C && D> struct S {};"); 246 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 247 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_BinaryOperator); 248 249 Tokens = annotate("template <typename T, bool B = C && D> struct S {};"); 250 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 251 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 252 253 Tokens = annotate("template <typename T, typename U = T&&> struct S {};"); 254 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 255 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_PointerOrReference); 256 257 Tokens = annotate("template <typename T = int (*)(int)> struct S {};"); 258 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 259 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_FunctionTypeLParen); 260 EXPECT_TOKEN(Tokens[7], tok::star, TT_PointerOrReference); 261 262 Tokens = annotate("Foo<A && B> a = {};"); 263 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 264 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_BinaryOperator); 265 266 Tokens = annotate("Foo<A &&> a = {};"); 267 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 268 EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_PointerOrReference); 269 270 Tokens = annotate("template <enable_if_t<foo && !bar>* = nullptr> void f();"); 271 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 272 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_BinaryOperator); 273 } 274 275 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 276 auto Tokens = annotate("x - 0"); 277 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 278 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 279 Tokens = annotate("0 + 0"); 280 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 281 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 282 Tokens = annotate("x + +0"); 283 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 284 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 285 Tokens = annotate("x ? -0 : +0"); 286 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 287 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 288 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 289 Tokens = annotate("(-0)"); 290 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 291 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 292 Tokens = annotate("0, -0"); 293 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 294 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 295 Tokens = annotate("for (; -1;) {\n}"); 296 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 297 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 298 Tokens = annotate("x = -1;"); 299 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 300 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 301 Tokens = annotate("x[-1]"); 302 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 303 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 304 Tokens = annotate("x = {-1};"); 305 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 306 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 307 Tokens = annotate("case -x:"); 308 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 309 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 310 Tokens = annotate("co_await -x;"); 311 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 312 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 313 Tokens = annotate("co_return -x;"); 314 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 315 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 316 Tokens = annotate("co_yield -x;"); 317 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 318 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 319 Tokens = annotate("delete -x;"); 320 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 321 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 322 Tokens = annotate("return -x;"); 323 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 324 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 325 Tokens = annotate("throw -x;"); 326 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 327 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 328 Tokens = annotate("sizeof -x"); 329 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 330 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 331 Tokens = annotate("co_await +x;"); 332 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 333 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 334 Tokens = annotate("co_return +x;"); 335 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 336 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 337 Tokens = annotate("co_yield +x;"); 338 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 339 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 340 Tokens = annotate("delete +x;"); 341 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 342 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 343 Tokens = annotate("return +x;"); 344 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 345 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 346 Tokens = annotate("throw +x;"); 347 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 348 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 349 Tokens = annotate("sizeof +x"); 350 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 351 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 352 Tokens = annotate("(int)-x"); 353 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 354 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 355 Tokens = annotate("(-x)"); 356 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 357 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 358 Tokens = annotate("!+x"); 359 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 360 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 361 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 362 } 363 364 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 365 auto Tokens = annotate("class C {};"); 366 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 367 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 368 369 Tokens = annotate("const class C {} c;"); 370 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 371 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 372 373 Tokens = annotate("const class {} c;"); 374 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 375 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 376 377 Tokens = annotate("class [[deprecated(\"\")]] C { int i; };"); 378 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 379 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_ClassLBrace); 380 } 381 382 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 383 auto Tokens = annotate("struct S {};"); 384 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 385 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 386 387 Tokens = annotate("struct EXPORT_MACRO [[nodiscard]] C { int i; };"); 388 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 389 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_StructLBrace); 390 391 Tokens = annotate("struct [[deprecated]] [[nodiscard]] C { int i; };"); 392 EXPECT_EQ(Tokens.size(), 19u) << Tokens; 393 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_StructLBrace); 394 395 Tokens = annotate("template <typename T> struct S<const T[N]> {};"); 396 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 397 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 398 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 399 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 400 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 401 402 Tokens = annotate("template <typename T> struct S<T const[N]> {};"); 403 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 404 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 405 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 406 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 407 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 408 409 Tokens = annotate("template <typename T, unsigned n> struct S<T const[n]> {\n" 410 " void f(T const (&a)[n]);\n" 411 "};"); 412 EXPECT_EQ(Tokens.size(), 35u) << Tokens; 413 EXPECT_TOKEN(Tokens[10], tok::less, TT_TemplateOpener); 414 EXPECT_TOKEN(Tokens[13], tok::l_square, TT_ArraySubscriptLSquare); 415 EXPECT_TOKEN(Tokens[16], tok::greater, TT_TemplateCloser); 416 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_StructLBrace); 417 EXPECT_TOKEN(Tokens[23], tok::l_paren, TT_FunctionTypeLParen); 418 EXPECT_TOKEN(Tokens[24], tok::amp, TT_UnaryOperator); 419 EXPECT_TOKEN(Tokens[27], tok::l_square, TT_ArraySubscriptLSquare); 420 } 421 422 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 423 auto Tokens = annotate("union U {};"); 424 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 425 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 426 427 Tokens = annotate("union U { void f() { return; } };"); 428 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 429 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 430 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 431 } 432 433 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 434 auto Tokens = annotate("enum E {};"); 435 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 436 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 437 } 438 439 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 440 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 441 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 442 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 443 444 Tokens = annotate("template <typename T> void F(T) && = delete;"); 445 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 446 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 447 } 448 449 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 450 auto Tokens = 451 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 452 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 453 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 454 } 455 456 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 457 auto Tokens = 458 annotate("template <typename T> " 459 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 460 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 461 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 462 } 463 464 TEST_F(TokenAnnotatorTest, UnderstandsTemplatesInMacros) { 465 auto Tokens = 466 annotate("#define FOO(typeName) \\\n" 467 " { #typeName, foo<FooType>(new foo<realClass>(#typeName)) }"); 468 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 469 EXPECT_TOKEN(Tokens[11], tok::less, TT_TemplateOpener); 470 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 471 EXPECT_TOKEN(Tokens[17], tok::less, TT_TemplateOpener); 472 EXPECT_TOKEN(Tokens[19], tok::greater, TT_TemplateCloser); 473 } 474 475 TEST_F(TokenAnnotatorTest, UnderstandsGreaterAfterTemplateCloser) { 476 auto Tokens = annotate("if (std::tuple_size_v<T> > 0)"); 477 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 478 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 479 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 480 EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator); 481 } 482 483 TEST_F(TokenAnnotatorTest, UnderstandsNonTemplateAngleBrackets) { 484 auto Tokens = annotate("return a < b && c > d;"); 485 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 486 EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator); 487 EXPECT_TOKEN(Tokens[6], tok::greater, TT_BinaryOperator); 488 489 Tokens = annotate("a < 0 ? b : a > 0 ? c : d;"); 490 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 491 EXPECT_TOKEN(Tokens[1], tok::less, TT_BinaryOperator); 492 EXPECT_TOKEN(Tokens[7], tok::greater, TT_BinaryOperator); 493 494 Tokens = annotate("ratio{-1, 2} < ratio{-1, 3} == -1 / 3 > -1 / 2;"); 495 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 496 EXPECT_TOKEN(Tokens[7], tok::less, TT_BinaryOperator); 497 EXPECT_TOKEN(Tokens[20], tok::greater, TT_BinaryOperator); 498 } 499 500 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 501 FormatStyle Style = getLLVMStyle(); 502 Style.WhitespaceSensitiveMacros.push_back("FOO"); 503 504 auto Tokens = annotate("FOO(1+2 )\n", Style); 505 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 506 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 507 508 Tokens = annotate("FOO(a:b:c)\n", Style); 509 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 510 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 511 } 512 513 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 514 auto Tokens = annotate("delete (void *)p;"); 515 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 516 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 517 518 Tokens = annotate("delete[] (void *)p;"); 519 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 520 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 521 522 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 523 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 524 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 525 526 Tokens = annotate("delete[/*comment*/] (void *)p;"); 527 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 528 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 529 530 Tokens = annotate("delete/*comment*/[] (void *)p;"); 531 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 532 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 533 } 534 535 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 536 auto Tokens = annotate("(void)p;"); 537 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 538 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 539 540 Tokens = annotate("auto x = (Foo)p;"); 541 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 542 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 543 544 Tokens = annotate("(std::vector<int>)p;"); 545 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 546 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 547 548 Tokens = annotate("return (Foo)p;"); 549 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 550 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 551 552 Tokens = annotate("throw (Foo)p;"); 553 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 554 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 555 } 556 557 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 558 auto Tokens = annotate("void f() throw(int);"); 559 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 560 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 561 } 562 563 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 564 auto Tokens = annotate("void f() &;"); 565 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 566 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 567 568 Tokens = annotate("void operator=(T) &&;"); 569 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 570 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 571 572 Tokens = annotate("template <typename T> void f() &;"); 573 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 574 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 575 576 Tokens = annotate("template <typename T> void operator=(T) &;"); 577 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 578 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 579 } 580 581 TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) { 582 auto Tokens = annotate("x.operator+()"); 583 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 584 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 585 EXPECT_TOKEN(Tokens[3], tok::plus, TT_OverloadedOperator); 586 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 587 Tokens = annotate("x.operator=()"); 588 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 589 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 590 EXPECT_TOKEN(Tokens[3], tok::equal, TT_OverloadedOperator); 591 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 592 Tokens = annotate("x.operator+=()"); 593 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 594 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 595 EXPECT_TOKEN(Tokens[3], tok::plusequal, TT_OverloadedOperator); 596 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 597 Tokens = annotate("x.operator,()"); 598 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 599 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 600 EXPECT_TOKEN(Tokens[3], tok::comma, TT_OverloadedOperator); 601 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 602 Tokens = annotate("x.operator()()"); 603 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 604 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 605 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperator); 606 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_OverloadedOperator); 607 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 608 Tokens = annotate("x.operator[]()"); 609 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 610 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 611 // EXPECT_TOKEN(Tokens[3], tok::l_square, TT_OverloadedOperator); 612 // EXPECT_TOKEN(Tokens[4], tok::r_square, TT_OverloadedOperator); 613 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 614 Tokens = annotate("x.operator\"\"_a()"); 615 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 616 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 617 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 618 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 619 Tokens = annotate("x.operator\"\" _a()"); 620 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 621 // FIXME 622 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 623 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 624 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 625 Tokens = annotate("x.operator\"\"if()"); 626 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 627 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 628 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 629 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 630 Tokens = annotate("x.operator\"\"s()"); 631 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 632 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 633 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 634 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 635 Tokens = annotate("x.operator\"\" s()"); 636 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 637 // FIXME 638 // EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_FunctionDeclarationName); 639 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 640 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 641 642 Tokens = annotate("int operator+(int);"); 643 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 644 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 645 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 646 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 647 Tokens = annotate("auto operator=(T&) {}"); 648 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 649 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 650 EXPECT_TOKEN(Tokens[2], tok::equal, TT_OverloadedOperator); 651 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 652 Tokens = annotate("auto operator()() {}"); 653 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 654 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 655 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_OverloadedOperator); 656 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_OverloadedOperator); 657 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 658 } 659 660 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 661 struct { 662 const char *Text; 663 tok::TokenKind Kind; 664 } Operators[] = {{"+", tok::plus}, 665 {"-", tok::minus}, 666 // FIXME: 667 // {"*", tok::star}, 668 {"/", tok::slash}, 669 {"%", tok::percent}, 670 {"^", tok::caret}, 671 // FIXME: 672 // {"&", tok::amp}, 673 {"|", tok::pipe}, 674 {"~", tok::tilde}, 675 {"!", tok::exclaim}, 676 {"=", tok::equal}, 677 // FIXME: 678 // {"<", tok::less}, 679 {">", tok::greater}, 680 {"+=", tok::plusequal}, 681 {"-=", tok::minusequal}, 682 {"*=", tok::starequal}, 683 {"/=", tok::slashequal}, 684 {"%=", tok::percentequal}, 685 {"^=", tok::caretequal}, 686 {"&=", tok::ampequal}, 687 {"|=", tok::pipeequal}, 688 {"<<", tok::lessless}, 689 {">>", tok::greatergreater}, 690 {">>=", tok::greatergreaterequal}, 691 {"<<=", tok::lesslessequal}, 692 {"==", tok::equalequal}, 693 {"!=", tok::exclaimequal}, 694 {"<=", tok::lessequal}, 695 {">=", tok::greaterequal}, 696 {"<=>", tok::spaceship}, 697 {"&&", tok::ampamp}, 698 {"||", tok::pipepipe}, 699 {"++", tok::plusplus}, 700 {"--", tok::minusminus}, 701 {",", tok::comma}, 702 {"->*", tok::arrowstar}, 703 {"->", tok::arrow}}; 704 705 for (const auto &Operator : Operators) { 706 std::string Input("C<&operator"); 707 Input += Operator.Text; 708 Input += " > a;"; 709 auto Tokens = annotate(std::string(Input)); 710 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 711 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 712 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 713 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 714 } 715 716 auto Tokens = annotate("C<&operator< <X>> lt;"); 717 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 718 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 719 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 720 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 721 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 722 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 723 } 724 725 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 726 auto Tokens = annotate("template <typename T>\n" 727 "concept C = (Foo && Bar) && (Bar && Baz);"); 728 729 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 730 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 731 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 732 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 733 734 Tokens = annotate("template <typename T>\n" 735 "concept C = Foo && !Bar;"); 736 737 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 738 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 739 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 740 741 Tokens = annotate("template <typename T>\n" 742 "concept C = requires(T t) {\n" 743 " { t.foo() };\n" 744 "} && Bar<T> && Baz<T>;"); 745 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 746 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 747 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 748 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 749 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 750 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 751 752 Tokens = annotate("template<typename T>\n" 753 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 754 "struct Foo;"); 755 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 756 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 757 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 758 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 759 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 760 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 761 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 762 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 763 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 764 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 765 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 766 767 Tokens = 768 annotate("template<typename T>\n" 769 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 770 "struct Foo;"); 771 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 772 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 773 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 774 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 775 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 776 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 777 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 778 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 779 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 780 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 781 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 782 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 783 784 Tokens = annotate("template <typename T>\n" 785 "void foo(T) noexcept requires Bar<T>;"); 786 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 787 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 788 789 Tokens = annotate("template <typename T>\n" 790 "requires Bar<T> || Baz<T>\n" 791 "auto foo(T) -> int;"); 792 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 793 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 794 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 795 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 796 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 797 798 Tokens = annotate("template <typename T>\n" 799 "requires Bar<T>\n" 800 "bool foo(T) { return false; }"); 801 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 802 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 803 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 804 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 805 806 Tokens = annotate("template <typename T>\n" 807 "requires Bar<T>\n" 808 "decltype(auto) foo(T) { return false; }"); 809 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 810 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 811 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 812 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 813 814 Tokens = annotate("template <typename T>\n" 815 "struct S {\n" 816 " void foo() const requires Bar<T>;\n" 817 " void bar() const & requires Baz<T>;\n" 818 " void bar() && requires Baz2<T>;\n" 819 " void baz() const & noexcept requires Baz<T>;\n" 820 " void baz() && noexcept requires Baz2<T>;\n" 821 "};\n" 822 "\n" 823 "void S::bar() const & requires Baz<T> { }"); 824 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 825 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 826 EXPECT_TOKEN(Tokens[24], tok::amp, TT_PointerOrReference); 827 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 828 EXPECT_TOKEN(Tokens[35], tok::ampamp, TT_PointerOrReference); 829 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 830 EXPECT_TOKEN(Tokens[47], tok::amp, TT_PointerOrReference); 831 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 832 EXPECT_TOKEN(Tokens[59], tok::ampamp, TT_PointerOrReference); 833 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 834 EXPECT_TOKEN(Tokens[76], tok::amp, TT_PointerOrReference); 835 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 836 837 Tokens = annotate("void Class::member() && requires(Constant) {}"); 838 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 839 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 840 841 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 842 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 843 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 844 845 Tokens = 846 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 847 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 848 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 849 850 Tokens = annotate("void Class::member() && requires(typename " 851 "Namespace::Outer<T>::Inner::Constant) {}"); 852 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 853 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 854 855 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 856 " template<class T>\n" 857 " requires requires { number_zero_v<T>; }\n" 858 " [[nodiscard]] constexpr operator T() const { " 859 "return number_zero_v<T>; }\n" 860 "};"); 861 ASSERT_EQ(Tokens.size(), 44u) << Tokens; 862 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 863 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 864 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 865 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 866 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 867 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 868 869 Tokens = 870 annotate("template <class A, class B> concept C =" 871 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 872 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 873 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 874 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 875 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 876 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 877 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 878 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 879 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 880 881 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 882 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 883 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 884 885 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 886 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 887 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 888 889 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 890 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 891 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 892 893 Tokens = 894 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 895 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 896 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 897 898 Tokens = 899 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 900 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 901 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 902 903 Tokens = 904 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 905 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 906 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 907 } 908 909 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 910 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 911 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 912 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 913 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 914 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 915 916 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 917 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 918 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 919 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 920 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 921 922 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 923 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 924 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 925 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 926 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 927 928 Tokens = annotate("foo(requires(const T t) {});"); 929 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 930 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 931 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 932 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 933 934 Tokens = annotate("foo(requires(const int t) {});"); 935 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 936 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 937 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 938 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 939 940 Tokens = annotate("foo(requires(const T t) {});"); 941 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 942 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 943 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 944 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 945 946 Tokens = annotate("foo(requires(int const* volatile t) {});"); 947 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 948 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 949 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 950 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 951 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 952 953 Tokens = annotate("foo(requires(T const* volatile t) {});"); 954 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 955 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 956 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 957 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 958 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 959 960 Tokens = annotate("foo(requires(T& t) {});"); 961 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 962 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 963 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 964 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 965 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 966 967 Tokens = annotate("foo(requires(T&& t) {});"); 968 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 969 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 970 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 971 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 972 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 973 974 Tokens = annotate("bool foo = requires(T& t) {};"); 975 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 976 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 977 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 978 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 979 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 980 981 Tokens = annotate("bool foo = requires(T&& t) {};"); 982 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 983 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 984 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 985 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 986 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 987 988 Tokens = 989 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 990 ASSERT_EQ(Tokens.size(), 21u) << 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[12], tok::star, TT_PointerOrReference); 994 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 995 996 Tokens = annotate("template <typename T>\n" 997 "concept C = requires(T T) {\n" 998 " requires Bar<T> && Foo<T>;\n" 999 "};"); 1000 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1001 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1002 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1003 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1004 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1005 TT_RequiresClauseInARequiresExpression); 1006 1007 Tokens = annotate("template <typename T>\n" 1008 "concept C = requires(T T) {\n" 1009 " { t.func() } -> std::same_as<int>;" 1010 " requires Bar<T> && Foo<T>;\n" 1011 "};"); 1012 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1013 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1014 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1015 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1016 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1017 TT_RequiresClauseInARequiresExpression); 1018 1019 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1020 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1021 "requires true; };"); 1022 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1023 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1024 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1025 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1026 } 1027 1028 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1029 // Everything after #pragma region should be ImplicitStringLiteral 1030 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1031 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1032 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1033 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1034 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1035 1036 // Make sure it's annotated correctly inside a function as well 1037 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1038 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1039 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1040 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1041 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1042 } 1043 1044 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1045 const char *BaseCode = nullptr; 1046 const char *ConstrainedCode = nullptr; 1047 auto BaseTokenCount = 0u; 1048 auto RequiresTokenCount = 0u; 1049 auto PrefixTokenCount = 0u; 1050 1051 auto TestRequires = [&](int Line) { 1052 const auto BaseTokens = annotate(BaseCode); 1053 const auto ConstrainedTokens = annotate(ConstrainedCode); 1054 1055 #define LINE " (Line " << Line << ')' 1056 1057 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1058 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1059 << LINE; 1060 1061 for (auto I = 0u; I < BaseTokenCount; ++I) { 1062 EXPECT_EQ( 1063 *BaseTokens[I], 1064 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1065 << I << LINE; 1066 } 1067 1068 #undef LINE 1069 }; 1070 1071 BaseCode = "template<typename T>\n" 1072 "T Pi = 3.14;"; 1073 ConstrainedCode = "template<typename T>\n" 1074 " requires Foo<T>\n" 1075 "T Pi = 3.14;"; 1076 BaseTokenCount = 11; 1077 RequiresTokenCount = 5; 1078 PrefixTokenCount = 5; 1079 TestRequires(__LINE__); 1080 1081 BaseCode = "template<typename T>\n" 1082 "struct Bar;"; 1083 ConstrainedCode = "template<typename T>\n" 1084 " requires Foo<T>\n" 1085 "struct Bar;"; 1086 BaseTokenCount = 9; 1087 TestRequires(__LINE__); 1088 1089 BaseCode = "template<typename T>\n" 1090 "struct Bar {\n" 1091 " T foo();\n" 1092 " T bar();\n" 1093 "};"; 1094 ConstrainedCode = "template<typename T>\n" 1095 " requires Foo<T>\n" 1096 "struct Bar {\n" 1097 " T foo();\n" 1098 " T bar();\n" 1099 "};"; 1100 BaseTokenCount = 21; 1101 TestRequires(__LINE__); 1102 1103 BaseCode = "template<typename T>\n" 1104 "Bar(T) -> Bar<T>;"; 1105 ConstrainedCode = "template<typename T>\n" 1106 " requires Foo<T>\n" 1107 "Bar(T) -> Bar<T>;"; 1108 BaseTokenCount = 16; 1109 TestRequires(__LINE__); 1110 1111 BaseCode = "template<typename T>\n" 1112 "T foo();"; 1113 ConstrainedCode = "template<typename T>\n" 1114 " requires Foo<T>\n" 1115 "T foo();"; 1116 BaseTokenCount = 11; 1117 TestRequires(__LINE__); 1118 1119 BaseCode = "template<typename T>\n" 1120 "T foo() {\n" 1121 " auto bar = baz();\n" 1122 " return bar + T{};\n" 1123 "}"; 1124 ConstrainedCode = "template<typename T>\n" 1125 " requires Foo<T>\n" 1126 "T foo() {\n" 1127 " auto bar = baz();\n" 1128 " return bar + T{};\n" 1129 "}"; 1130 BaseTokenCount = 26; 1131 TestRequires(__LINE__); 1132 1133 BaseCode = "template<typename T>\n" 1134 "T foo();"; 1135 ConstrainedCode = "template<typename T>\n" 1136 "T foo() requires Foo<T>;"; 1137 BaseTokenCount = 11; 1138 PrefixTokenCount = 9; 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 "T foo() requires Foo<T> {\n" 1148 " auto bar = baz();\n" 1149 " return bar + T{};\n" 1150 "}"; 1151 BaseTokenCount = 26; 1152 TestRequires(__LINE__); 1153 1154 BaseCode = "template<typename T>\n" 1155 "T foo();"; 1156 ConstrainedCode = "template<typename T>\n" 1157 " requires(Foo<T>)\n" 1158 "T foo();"; 1159 BaseTokenCount = 11; 1160 RequiresTokenCount = 7; 1161 PrefixTokenCount = 5; 1162 TestRequires(__LINE__); 1163 1164 BaseCode = "template<typename T>\n" 1165 "Bar(T) -> Bar<typename T::I>;"; 1166 ConstrainedCode = "template<typename T>\n" 1167 " requires requires(T &&t) {\n" 1168 " typename T::I;\n" 1169 " }\n" 1170 "Bar(T) -> Bar<typename T::I>;"; 1171 BaseTokenCount = 19; 1172 RequiresTokenCount = 14; 1173 PrefixTokenCount = 5; 1174 TestRequires(__LINE__); 1175 1176 BaseCode = "struct [[nodiscard]] zero_t {\n" 1177 " template<class T>\n" 1178 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1179 "};"; 1180 ConstrainedCode = 1181 "struct [[nodiscard]] zero_t {\n" 1182 " template<class T>\n" 1183 " requires requires { v<T>; }\n" 1184 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1185 "};"; 1186 BaseTokenCount = 35; 1187 RequiresTokenCount = 9; 1188 PrefixTokenCount = 13; 1189 TestRequires(__LINE__); 1190 1191 BaseCode = "constexpr Foo(Foo const &other)\n" 1192 " : value{other.value} {\n" 1193 " do_magic();\n" 1194 " do_more_magic();\n" 1195 "}"; 1196 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1197 " requires std::is_copy_constructible<T>\n" 1198 " : value{other.value} {\n" 1199 " do_magic();\n" 1200 " do_more_magic();\n" 1201 "}"; 1202 BaseTokenCount = 26; 1203 RequiresTokenCount = 7; 1204 PrefixTokenCount = 8; 1205 TestRequires(__LINE__); 1206 1207 BaseCode = "constexpr Foo(Foo const &other)\n" 1208 " : value{other.value} {\n" 1209 " do_magic();\n" 1210 " do_more_magic();\n" 1211 "}"; 1212 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1213 " requires (std::is_copy_constructible<T>)\n" 1214 " : value{other.value} {\n" 1215 " do_magic();\n" 1216 " do_more_magic();\n" 1217 "}"; 1218 RequiresTokenCount = 9; 1219 TestRequires(__LINE__); 1220 } 1221 1222 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1223 auto Tokens = annotate("__asm{\n" 1224 "a:\n" 1225 "};"); 1226 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1227 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1228 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1229 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1230 } 1231 1232 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1233 auto Tokens = annotate("int (^)() = ^ ()\n" 1234 " external_source_symbol() { //\n" 1235 " return 1;\n" 1236 "};"); 1237 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1238 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1239 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1240 1241 Tokens = annotate("int *p = ^int*(){ //\n" 1242 " return nullptr;\n" 1243 "}();"); 1244 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1245 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1246 } 1247 1248 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1249 auto Tokens = annotate("void f() {\n" 1250 " //\n" 1251 " BOOL a = [b.c n] > 1;\n" 1252 "}"); 1253 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1254 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1255 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1256 } 1257 1258 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1259 auto Tokens = annotate("[]() constexpr {}"); 1260 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1261 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1262 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1263 1264 Tokens = annotate("[]() consteval {}"); 1265 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1266 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1267 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1268 1269 Tokens = annotate("[]() mutable {}"); 1270 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1271 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1272 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1273 1274 Tokens = annotate("[]() static {}"); 1275 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1276 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1277 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1278 1279 Tokens = annotate("[]() -> auto {}"); 1280 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1281 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1282 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1283 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1284 1285 Tokens = annotate("[]() -> auto & {}"); 1286 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1287 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1288 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1289 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1290 1291 Tokens = annotate("[]() -> auto * {}"); 1292 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1293 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1294 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1295 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1296 1297 Tokens = annotate("[] {}"); 1298 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1299 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1300 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1301 1302 Tokens = annotate("[] noexcept {}"); 1303 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1304 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1305 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1306 1307 Tokens = annotate("[] -> auto {}"); 1308 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1309 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1310 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1311 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1312 1313 Tokens = annotate("[] <typename T> () {}"); 1314 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1315 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1316 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1317 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1318 1319 Tokens = annotate("[] <typename T> {}"); 1320 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1321 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1322 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1323 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1324 1325 Tokens = annotate("[] <typename... T> () {}"); 1326 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1327 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1328 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1329 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1330 1331 Tokens = annotate("[] <typename... T> {}"); 1332 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1333 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1334 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1335 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1336 1337 Tokens = annotate("[] <int... T> () {}"); 1338 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1339 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1340 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1341 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1342 1343 Tokens = annotate("[] <int... T> {}"); 1344 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1345 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1346 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1347 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1348 1349 Tokens = annotate("[] <Foo... T> () {}"); 1350 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1351 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1352 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1353 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1354 1355 Tokens = annotate("[] <Foo... T> {}"); 1356 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1357 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1358 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1359 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1360 1361 // Lambdas with a requires-clause 1362 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1363 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1364 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1365 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1366 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1367 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1368 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1369 1370 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1371 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1372 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1373 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1374 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1375 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1376 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1377 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1378 1379 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1380 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1381 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1382 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1383 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1384 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1385 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1386 1387 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1388 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1389 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1390 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1391 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1392 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1393 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1394 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1395 1396 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1397 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1398 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1399 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1400 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1401 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1402 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1403 1404 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1405 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1406 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1407 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1408 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1409 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1410 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1411 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1412 1413 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1414 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1415 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1416 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1417 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1418 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1419 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1420 1421 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1422 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1423 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1424 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1425 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1426 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1427 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1428 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1429 1430 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1431 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1432 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1433 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1434 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1435 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1436 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1437 1438 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1439 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1440 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1441 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1442 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1443 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1444 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1445 1446 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1447 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1448 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1449 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1450 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1451 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1452 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1453 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1454 1455 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1456 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1457 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1458 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1459 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1460 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1461 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1462 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1463 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1464 } 1465 1466 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1467 auto Tokens = annotate("template <typename T>\n" 1468 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1469 "string OldFunction(const string ¶meter) {}"); 1470 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1471 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1472 1473 Tokens = annotate("template <typename T>\n" 1474 "A(T) noexcept;"); 1475 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1476 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1477 } 1478 1479 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1480 auto Tokens = annotate("void f [[noreturn]] ();"); 1481 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1482 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1483 1484 Tokens = annotate("void f [[noreturn]] () {}"); 1485 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1486 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1487 } 1488 1489 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1490 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1491 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1492 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1493 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1494 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1495 } 1496 1497 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1498 auto Tokens = annotate("auto f() -> int;"); 1499 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1500 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1501 1502 Tokens = annotate("auto operator->() -> int;"); 1503 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1504 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1505 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1506 1507 Tokens = annotate("auto operator++(int) -> int;"); 1508 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1509 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1510 1511 Tokens = annotate("auto operator=() -> int;"); 1512 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1513 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1514 1515 Tokens = annotate("auto operator=(int) -> int;"); 1516 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1517 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1518 1519 Tokens = annotate("auto foo() -> auto { return Val; }"); 1520 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1521 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1522 1523 Tokens = annotate("struct S { auto bar() const -> int; };"); 1524 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1525 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1526 1527 // Not trailing return arrows 1528 Tokens = annotate("auto a = b->c;"); 1529 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1530 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1531 1532 Tokens = annotate("auto a = (b)->c;"); 1533 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1534 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1535 1536 Tokens = annotate("auto a = b()->c;"); 1537 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1538 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1539 1540 Tokens = annotate("auto a = b->c();"); 1541 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1542 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1543 1544 Tokens = annotate("decltype(auto) a = b()->c;"); 1545 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1546 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1547 1548 Tokens = annotate("void f() { auto a = b->c(); }"); 1549 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1550 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1551 1552 Tokens = annotate("void f() { auto a = b()->c; }"); 1553 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1554 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1555 1556 // Mixed 1557 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1558 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1559 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1560 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1561 } 1562 1563 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1564 auto Annotate = [this](llvm::StringRef Code) { 1565 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1566 }; 1567 // Test that unary operators get labeled as such and that operators like '++' 1568 // don't get split. 1569 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1570 tok::tilde, tok::amp, tok::pipe, 1571 tok::caret, tok::plusplus, tok::minusminus}; 1572 for (auto Kind : Unary) { 1573 auto Tokens = 1574 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1575 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1576 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1577 } 1578 // Operators formed by joining two operators like '^~'. For some of these 1579 // joined operators, we don't have a separate type, so we only test for their 1580 // precedence. 1581 std::pair<prec::Level, std::string> JoinedBinary[] = { 1582 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1583 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1584 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1585 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1586 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1587 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1588 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1589 {prec::Equality, "=="}, {prec::Equality, "!="}, 1590 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1591 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1592 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1593 }; 1594 for (auto Operator : JoinedBinary) { 1595 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1596 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1597 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1598 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1599 } 1600 // '~^' and '^~' can be unary as well as binary operators. 1601 auto Tokens = Annotate("x = ~^x;"); 1602 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1603 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1604 Tokens = Annotate("x = ^~x;"); 1605 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1606 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1607 // The unary operators '~&' and '~|' can only be unary operators. The current 1608 // implementation treats each of them as separate unary '~' and '&' or '|' 1609 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1610 // there is a test that there is no space in between. And even if a new line 1611 // is inserted between the '~' and '|', the semantic meaning is the same as 1612 // the joined operator, so the CanBreakBefore property doesn't need to be 1613 // false for the second operator. 1614 Tokens = Annotate("x = ~&x;"); 1615 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1616 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1617 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1618 Tokens = Annotate("x = ~|x;"); 1619 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1620 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1621 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1622 // Test for block label colons. 1623 Tokens = Annotate("begin : x\n" 1624 "end : x"); 1625 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1626 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1627 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1628 // Test that the dimension colon is annotated correctly. 1629 Tokens = Annotate("var [1 : 0] x;"); 1630 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1631 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1632 Tokens = Annotate("extern function [1 : 0] x;"); 1633 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1634 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1635 Tokens = Annotate("module test\n" 1636 " (input wire [7 : 0] a[7 : 0]);\n" 1637 "endmodule"); 1638 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1639 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1640 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1641 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1642 // Test case labels and ternary operators. 1643 Tokens = Annotate("case (x)\n" 1644 " x:\n" 1645 " x;\n" 1646 "endcase\n"); 1647 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1648 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1649 Tokens = Annotate("case (x)\n" 1650 " x ? x : x:\n" 1651 " x;\n" 1652 "endcase\n"); 1653 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1654 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1655 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1656 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1657 // Non-blocking assignments. 1658 Tokens = Annotate("a <= b;"); 1659 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1660 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1661 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1662 Tokens = Annotate("if (a <= b) break;"); 1663 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1664 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1665 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1666 Tokens = Annotate("a <= b <= a;"); 1667 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1668 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1669 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1670 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1671 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1672 1673 // Port lists in module instantiation. 1674 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1675 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1676 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1677 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1678 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1679 "instance_2(port_2);"); 1680 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1681 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1682 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1683 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1684 1685 // Condition parentheses. 1686 Tokens = Annotate("assert (x);"); 1687 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1688 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1689 Tokens = Annotate("assert #0 (x);"); 1690 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1691 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1692 Tokens = Annotate("assert final (x);"); 1693 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1694 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1695 Tokens = Annotate("foreach (x[x]) continue;"); 1696 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1697 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1698 Tokens = Annotate("repeat (x[x]) continue;"); 1699 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1700 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1701 Tokens = Annotate("case (x) endcase;"); 1702 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1703 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1704 1705 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1706 // future, please adapt if those tokens get annotated. This test is only here 1707 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1708 Tokens = Annotate("always @(posedge x, posedge y);"); 1709 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1710 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1711 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1712 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1713 } 1714 1715 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1716 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1717 1718 // The TT_Unknown is clearly not binding for the future, please adapt if those 1719 // tokens get annotated. 1720 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1721 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1722 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1723 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1724 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1725 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1726 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1727 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1728 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1729 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1730 1731 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1732 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1733 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1734 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1735 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1736 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1737 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1738 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1739 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1740 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1741 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1742 } 1743 1744 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 1745 auto Tokens = annotate("if (x) {}"); 1746 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1747 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1748 Tokens = annotate("if constexpr (x) {}"); 1749 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1750 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1751 Tokens = annotate("if CONSTEXPR (x) {}"); 1752 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1753 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1754 Tokens = annotate("if (x) {} else if (x) {}"); 1755 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1756 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1757 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 1758 } 1759 1760 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 1761 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 1762 1763 auto Tokens = annotate("int? a;", Style); 1764 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 1765 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1766 1767 Tokens = annotate("int? a = 1;", Style); 1768 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 1769 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1770 1771 Tokens = annotate("int?)", Style); 1772 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1773 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1774 1775 Tokens = annotate("int?>", Style); 1776 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1777 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1778 1779 Tokens = annotate("cond? id : id2", Style); 1780 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 1781 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1782 1783 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 1784 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 1785 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1786 } 1787 1788 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 1789 auto Tokens = annotate("{ x: break; }"); 1790 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1791 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1792 Tokens = annotate("{ case x: break; }"); 1793 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1794 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1795 Tokens = annotate("{ x: { break; } }"); 1796 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1797 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1798 Tokens = annotate("{ case x: { break; } }"); 1799 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1800 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1801 } 1802 1803 } // namespace 1804 } // namespace format 1805 } // namespace clang 1806