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 Tokens = 277 annotate("auto foo() noexcept(noexcept(bar()) && " 278 "trait<std::decay_t<decltype(bar())>> && noexcept(baz())) {}"); 279 EXPECT_EQ(Tokens.size(), 38u) << Tokens; 280 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_BinaryOperator); 281 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 282 283 Tokens = annotate("foo = *i < *j && *j > *k;"); 284 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 285 EXPECT_TOKEN(Tokens[4], tok::less, TT_BinaryOperator); 286 EXPECT_TOKEN(Tokens[7], tok::ampamp, TT_BinaryOperator); 287 EXPECT_TOKEN(Tokens[10], tok::greater, TT_BinaryOperator); 288 289 FormatStyle Style = getLLVMStyle(); 290 Style.TypeNames.push_back("MYI"); 291 Tokens = annotate("if (MYI *p{nullptr})", Style); 292 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 293 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_TypeName); 294 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 295 296 Style.TypeNames.push_back("Class"); 297 Tokens = annotate("if (Class *obj {getObj()})", Style); 298 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 299 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_TypeName); 300 EXPECT_TOKEN(Tokens[3], tok::star, TT_PointerOrReference); 301 } 302 303 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) { 304 auto Tokens = annotate("x - 0"); 305 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 306 EXPECT_TOKEN(Tokens[1], tok::minus, TT_BinaryOperator); 307 Tokens = annotate("0 + 0"); 308 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 309 EXPECT_TOKEN(Tokens[1], tok::plus, TT_BinaryOperator); 310 Tokens = annotate("x + +0"); 311 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 312 EXPECT_TOKEN(Tokens[2], tok::plus, TT_UnaryOperator); 313 Tokens = annotate("x ? -0 : +0"); 314 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 315 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 316 EXPECT_TOKEN(Tokens[5], tok::plus, TT_UnaryOperator); 317 Tokens = annotate("(-0)"); 318 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 319 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 320 Tokens = annotate("0, -0"); 321 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 322 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 323 Tokens = annotate("for (; -1;) {\n}"); 324 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 325 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 326 Tokens = annotate("x = -1;"); 327 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 328 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 329 Tokens = annotate("x[-1]"); 330 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 331 EXPECT_TOKEN(Tokens[2], tok::minus, TT_UnaryOperator); 332 Tokens = annotate("x = {-1};"); 333 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 334 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 335 Tokens = annotate("case -x:"); 336 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 337 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 338 Tokens = annotate("co_await -x;"); 339 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 340 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 341 Tokens = annotate("co_return -x;"); 342 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 343 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 344 Tokens = annotate("co_yield -x;"); 345 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 346 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 347 Tokens = annotate("delete -x;"); 348 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 349 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 350 Tokens = annotate("return -x;"); 351 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 352 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 353 Tokens = annotate("throw -x;"); 354 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 355 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 356 Tokens = annotate("sizeof -x"); 357 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 358 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 359 Tokens = annotate("co_await +x;"); 360 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 361 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 362 Tokens = annotate("co_return +x;"); 363 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 364 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 365 Tokens = annotate("co_yield +x;"); 366 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 367 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 368 Tokens = annotate("delete +x;"); 369 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 370 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 371 Tokens = annotate("return +x;"); 372 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 373 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 374 Tokens = annotate("throw +x;"); 375 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 376 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 377 Tokens = annotate("sizeof +x"); 378 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 379 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 380 Tokens = annotate("(int)-x"); 381 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 382 EXPECT_TOKEN(Tokens[3], tok::minus, TT_UnaryOperator); 383 Tokens = annotate("(-x)"); 384 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 385 EXPECT_TOKEN(Tokens[1], tok::minus, TT_UnaryOperator); 386 Tokens = annotate("!+x"); 387 ASSERT_EQ(Tokens.size(), 4u) << Tokens; 388 EXPECT_TOKEN(Tokens[0], tok::exclaim, TT_UnaryOperator); 389 EXPECT_TOKEN(Tokens[1], tok::plus, TT_UnaryOperator); 390 } 391 392 TEST_F(TokenAnnotatorTest, UnderstandsClasses) { 393 auto Tokens = annotate("class C {};"); 394 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 395 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 396 397 Tokens = annotate("const class C {} c;"); 398 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 399 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 400 401 Tokens = annotate("const class {} c;"); 402 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 403 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 404 405 Tokens = annotate("class [[deprecated(\"\")]] C { int i; };"); 406 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 407 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_ClassLBrace); 408 } 409 410 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 411 auto Tokens = annotate("struct S {};"); 412 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 413 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 414 415 Tokens = annotate("struct EXPORT_MACRO [[nodiscard]] C { int i; };"); 416 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 417 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_StructLBrace); 418 419 Tokens = annotate("struct [[deprecated]] [[nodiscard]] C { int i; };"); 420 EXPECT_EQ(Tokens.size(), 19u) << Tokens; 421 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_StructLBrace); 422 423 Tokens = annotate("template <typename T> struct S<const T[N]> {};"); 424 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 425 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 426 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 427 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 428 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 429 430 Tokens = annotate("template <typename T> struct S<T const[N]> {};"); 431 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 432 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 433 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 434 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 435 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 436 437 Tokens = annotate("template <typename T, unsigned n> struct S<T const[n]> {\n" 438 " void f(T const (&a)[n]);\n" 439 "};"); 440 EXPECT_EQ(Tokens.size(), 35u) << Tokens; 441 EXPECT_TOKEN(Tokens[10], tok::less, TT_TemplateOpener); 442 EXPECT_TOKEN(Tokens[13], tok::l_square, TT_ArraySubscriptLSquare); 443 EXPECT_TOKEN(Tokens[16], tok::greater, TT_TemplateCloser); 444 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_StructLBrace); 445 EXPECT_TOKEN(Tokens[23], tok::l_paren, TT_FunctionTypeLParen); 446 EXPECT_TOKEN(Tokens[24], tok::amp, TT_UnaryOperator); 447 EXPECT_TOKEN(Tokens[27], tok::l_square, TT_ArraySubscriptLSquare); 448 } 449 450 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 451 auto Tokens = annotate("union U {};"); 452 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 453 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 454 455 Tokens = annotate("union U { void f() { return; } };"); 456 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 457 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 458 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 459 } 460 461 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 462 auto Tokens = annotate("enum E {};"); 463 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 464 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 465 } 466 467 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 468 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 469 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 470 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 471 472 Tokens = annotate("template <typename T> void F(T) && = delete;"); 473 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 474 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 475 } 476 477 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 478 auto Tokens = 479 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 480 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 481 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 482 } 483 484 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 485 auto Tokens = 486 annotate("template <typename T> " 487 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 488 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 489 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 490 } 491 492 TEST_F(TokenAnnotatorTest, UnderstandsTemplatesInMacros) { 493 auto Tokens = 494 annotate("#define FOO(typeName) \\\n" 495 " { #typeName, foo<FooType>(new foo<realClass>(#typeName)) }"); 496 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 497 EXPECT_TOKEN(Tokens[11], tok::less, TT_TemplateOpener); 498 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 499 EXPECT_TOKEN(Tokens[17], tok::less, TT_TemplateOpener); 500 EXPECT_TOKEN(Tokens[19], tok::greater, TT_TemplateCloser); 501 } 502 503 TEST_F(TokenAnnotatorTest, UnderstandsGreaterAfterTemplateCloser) { 504 auto Tokens = annotate("if (std::tuple_size_v<T> > 0)"); 505 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 506 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 507 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 508 EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator); 509 } 510 511 TEST_F(TokenAnnotatorTest, UnderstandsNonTemplateAngleBrackets) { 512 auto Tokens = annotate("return a < b && c > d;"); 513 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 514 EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator); 515 EXPECT_TOKEN(Tokens[6], tok::greater, TT_BinaryOperator); 516 517 Tokens = annotate("a < 0 ? b : a > 0 ? c : d;"); 518 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 519 EXPECT_TOKEN(Tokens[1], tok::less, TT_BinaryOperator); 520 EXPECT_TOKEN(Tokens[7], tok::greater, TT_BinaryOperator); 521 522 Tokens = annotate("ratio{-1, 2} < ratio{-1, 3} == -1 / 3 > -1 / 2;"); 523 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 524 EXPECT_TOKEN(Tokens[7], tok::less, TT_BinaryOperator); 525 EXPECT_TOKEN(Tokens[20], tok::greater, TT_BinaryOperator); 526 } 527 528 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 529 FormatStyle Style = getLLVMStyle(); 530 Style.WhitespaceSensitiveMacros.push_back("FOO"); 531 532 auto Tokens = annotate("FOO(1+2 )\n", Style); 533 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 534 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 535 536 Tokens = annotate("FOO(a:b:c)\n", Style); 537 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 538 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 539 } 540 541 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 542 auto Tokens = annotate("delete (void *)p;"); 543 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 544 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 545 546 Tokens = annotate("delete[] (void *)p;"); 547 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 548 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 549 550 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 551 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 552 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 553 554 Tokens = annotate("delete[/*comment*/] (void *)p;"); 555 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 556 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 557 558 Tokens = annotate("delete/*comment*/[] (void *)p;"); 559 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 560 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 561 } 562 563 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 564 auto Tokens = annotate("(void)p;"); 565 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 566 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 567 568 Tokens = annotate("auto x = (Foo)p;"); 569 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 570 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 571 572 Tokens = annotate("(std::vector<int>)p;"); 573 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 574 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 575 576 Tokens = annotate("return (Foo)p;"); 577 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 578 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 579 580 Tokens = annotate("throw (Foo)p;"); 581 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 582 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 583 584 Tokens = annotate("#define FOO(x) (((uint64_t)(x) * BAR) / 100)"); 585 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 586 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_CastRParen); 587 EXPECT_TOKEN(Tokens[13], tok::r_paren, TT_Unknown); 588 EXPECT_TOKEN(Tokens[14], tok::star, TT_BinaryOperator); 589 590 Tokens = annotate("return (Foo) & 10;"); 591 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 592 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_Unknown); 593 EXPECT_TOKEN(Tokens[4], tok::amp, TT_BinaryOperator); 594 } 595 596 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 597 auto Tokens = annotate("void f() throw(int);"); 598 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 599 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 600 } 601 602 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 603 auto Tokens = annotate("void f() &;"); 604 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 605 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 606 607 Tokens = annotate("void operator=(T) &&;"); 608 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 609 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 610 611 Tokens = annotate("template <typename T> void f() &;"); 612 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 613 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 614 615 Tokens = annotate("template <typename T> void operator=(T) &;"); 616 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 617 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 618 } 619 620 TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) { 621 auto Tokens = annotate("x.operator+()"); 622 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 623 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 624 EXPECT_TOKEN(Tokens[3], tok::plus, TT_OverloadedOperator); 625 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 626 Tokens = annotate("x.operator=()"); 627 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 628 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 629 EXPECT_TOKEN(Tokens[3], tok::equal, TT_OverloadedOperator); 630 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 631 Tokens = annotate("x.operator+=()"); 632 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 633 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 634 EXPECT_TOKEN(Tokens[3], tok::plusequal, TT_OverloadedOperator); 635 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 636 Tokens = annotate("x.operator,()"); 637 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 638 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 639 EXPECT_TOKEN(Tokens[3], tok::comma, TT_OverloadedOperator); 640 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 641 Tokens = annotate("x.operator()()"); 642 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 643 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 644 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperator); 645 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_OverloadedOperator); 646 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 647 Tokens = annotate("x.operator[]()"); 648 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 649 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 650 // EXPECT_TOKEN(Tokens[3], tok::l_square, TT_OverloadedOperator); 651 // EXPECT_TOKEN(Tokens[4], tok::r_square, TT_OverloadedOperator); 652 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 653 Tokens = annotate("x.operator\"\"_a()"); 654 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 655 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 656 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 657 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 658 Tokens = annotate("x.operator\"\" _a()"); 659 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 660 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 661 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 662 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 663 Tokens = annotate("x.operator\"\"if()"); 664 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 665 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 666 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 667 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 668 Tokens = annotate("x.operator\"\"s()"); 669 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 670 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 671 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 672 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 673 Tokens = annotate("x.operator\"\" s()"); 674 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 675 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 676 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 677 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 678 679 Tokens = annotate("int operator+(int);"); 680 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 681 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 682 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 683 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 684 Tokens = annotate("auto operator=(T&) {}"); 685 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 686 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 687 EXPECT_TOKEN(Tokens[2], tok::equal, TT_OverloadedOperator); 688 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 689 Tokens = annotate("auto operator()() {}"); 690 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 691 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 692 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_OverloadedOperator); 693 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_OverloadedOperator); 694 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 695 696 Tokens = annotate("class Foo {\n" 697 " int operator+(a* b);\n" 698 "}"); 699 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 700 EXPECT_TOKEN(Tokens[4], tok::kw_operator, TT_FunctionDeclarationName); 701 EXPECT_TOKEN(Tokens[5], tok::plus, TT_OverloadedOperator); 702 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_OverloadedOperatorLParen); 703 EXPECT_TOKEN(Tokens[8], tok::star, TT_PointerOrReference); 704 705 Tokens = annotate("class Foo {\n" 706 " int c = operator+(a * b);\n" 707 "}"); 708 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 709 EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_Unknown); 710 EXPECT_TOKEN(Tokens[7], tok::plus, TT_OverloadedOperator); 711 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_OverloadedOperatorLParen); 712 EXPECT_TOKEN(Tokens[10], tok::star, TT_BinaryOperator); 713 714 Tokens = annotate("void foo() {\n" 715 " operator+(a * b);\n" 716 "}"); 717 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 718 EXPECT_TOKEN(Tokens[5], tok::kw_operator, TT_Unknown); 719 EXPECT_TOKEN(Tokens[6], tok::plus, TT_OverloadedOperator); 720 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperatorLParen); 721 EXPECT_TOKEN(Tokens[9], tok::star, TT_BinaryOperator); 722 723 Tokens = annotate("return operator+(a * b, c & d) + operator+(a && b && c);"); 724 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 725 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_Unknown); 726 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 727 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 728 EXPECT_TOKEN(Tokens[5], tok::star, TT_BinaryOperator); 729 EXPECT_TOKEN(Tokens[9], tok::amp, TT_BinaryOperator); 730 EXPECT_TOKEN(Tokens[13], tok::kw_operator, TT_Unknown); 731 EXPECT_TOKEN(Tokens[14], tok::plus, TT_OverloadedOperator); 732 EXPECT_TOKEN(Tokens[15], tok::l_paren, TT_OverloadedOperatorLParen); 733 EXPECT_TOKEN(Tokens[17], tok::ampamp, TT_BinaryOperator); 734 EXPECT_TOKEN(Tokens[19], tok::ampamp, TT_BinaryOperator); 735 736 Tokens = annotate("class Foo {\n" 737 " void foo() {\n" 738 " operator+(a * b);\n" 739 " }\n" 740 "}"); 741 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 742 EXPECT_TOKEN(Tokens[8], tok::kw_operator, TT_Unknown); 743 EXPECT_TOKEN(Tokens[9], tok::plus, TT_OverloadedOperator); 744 EXPECT_TOKEN(Tokens[10], tok::l_paren, TT_OverloadedOperatorLParen); 745 EXPECT_TOKEN(Tokens[12], tok::star, TT_BinaryOperator); 746 747 Tokens = annotate("std::vector<Foo> operator()(Foo &foo);"); 748 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 749 EXPECT_TOKEN(Tokens[3], tok::less, TT_TemplateOpener); 750 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 751 EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_FunctionDeclarationName); 752 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperator); 753 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_OverloadedOperator); 754 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_OverloadedOperatorLParen); 755 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 756 } 757 758 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 759 struct { 760 const char *Text; 761 tok::TokenKind Kind; 762 } Operators[] = {{"+", tok::plus}, 763 {"-", tok::minus}, 764 // FIXME: 765 // {"*", tok::star}, 766 {"/", tok::slash}, 767 {"%", tok::percent}, 768 {"^", tok::caret}, 769 // FIXME: 770 // {"&", tok::amp}, 771 {"|", tok::pipe}, 772 {"~", tok::tilde}, 773 {"!", tok::exclaim}, 774 {"=", tok::equal}, 775 // FIXME: 776 // {"<", tok::less}, 777 {">", tok::greater}, 778 {"+=", tok::plusequal}, 779 {"-=", tok::minusequal}, 780 {"*=", tok::starequal}, 781 {"/=", tok::slashequal}, 782 {"%=", tok::percentequal}, 783 {"^=", tok::caretequal}, 784 {"&=", tok::ampequal}, 785 {"|=", tok::pipeequal}, 786 {"<<", tok::lessless}, 787 {">>", tok::greatergreater}, 788 {">>=", tok::greatergreaterequal}, 789 {"<<=", tok::lesslessequal}, 790 {"==", tok::equalequal}, 791 {"!=", tok::exclaimequal}, 792 {"<=", tok::lessequal}, 793 {">=", tok::greaterequal}, 794 {"<=>", tok::spaceship}, 795 {"&&", tok::ampamp}, 796 {"||", tok::pipepipe}, 797 {"++", tok::plusplus}, 798 {"--", tok::minusminus}, 799 {",", tok::comma}, 800 {"->*", tok::arrowstar}, 801 {"->", tok::arrow}}; 802 803 for (const auto &Operator : Operators) { 804 std::string Input("C<&operator"); 805 Input += Operator.Text; 806 Input += " > a;"; 807 auto Tokens = annotate(std::string(Input)); 808 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 809 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 810 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 811 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 812 } 813 814 auto Tokens = annotate("C<&operator< <X>> lt;"); 815 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 816 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 817 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 818 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 819 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 820 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 821 } 822 823 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 824 auto Tokens = annotate("template <typename T>\n" 825 "concept C = (Foo && Bar) && (Bar && Baz);"); 826 827 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 828 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 829 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 830 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 831 832 Tokens = annotate("template <typename T>\n" 833 "concept C = Foo && !Bar;"); 834 835 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 836 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 837 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 838 839 Tokens = annotate("template <typename T>\n" 840 "concept C = requires(T t) {\n" 841 " { t.foo() };\n" 842 "} && Bar<T> && Baz<T>;"); 843 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 844 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 845 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 846 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 847 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 848 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 849 850 Tokens = annotate("template<typename T>\n" 851 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 852 "struct Foo;"); 853 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 854 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 855 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 856 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 857 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 858 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 859 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 860 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 861 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 862 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 863 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 864 865 Tokens = 866 annotate("template<typename T>\n" 867 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 868 "struct Foo;"); 869 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 870 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 871 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 872 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 873 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 874 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 875 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 876 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 877 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 878 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 879 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 880 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 881 882 Tokens = annotate("template <typename T>\n" 883 "void foo(T) noexcept requires Bar<T>;"); 884 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 885 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 886 887 Tokens = annotate("template <typename T>\n" 888 "requires Bar<T> || Baz<T>\n" 889 "auto foo(T) -> int;"); 890 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 891 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 892 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 893 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 894 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 895 896 Tokens = annotate("template <typename T>\n" 897 "requires Bar<T>\n" 898 "bool foo(T) { return false; }"); 899 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 900 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 901 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 902 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 903 904 Tokens = annotate("template <typename T>\n" 905 "requires Bar<T>\n" 906 "decltype(auto) foo(T) { return false; }"); 907 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 908 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 909 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 910 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 911 912 Tokens = annotate("template <typename T>\n" 913 "struct S {\n" 914 " void foo() const requires Bar<T>;\n" 915 " void bar() const & requires Baz<T>;\n" 916 " void bar() && requires Baz2<T>;\n" 917 " void baz() const & noexcept requires Baz<T>;\n" 918 " void baz() && noexcept requires Baz2<T>;\n" 919 "};\n" 920 "\n" 921 "void S::bar() const & requires Baz<T> { }"); 922 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 923 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 924 EXPECT_TOKEN(Tokens[24], tok::amp, TT_PointerOrReference); 925 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 926 EXPECT_TOKEN(Tokens[35], tok::ampamp, TT_PointerOrReference); 927 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 928 EXPECT_TOKEN(Tokens[47], tok::amp, TT_PointerOrReference); 929 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 930 EXPECT_TOKEN(Tokens[59], tok::ampamp, TT_PointerOrReference); 931 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 932 EXPECT_TOKEN(Tokens[76], tok::amp, TT_PointerOrReference); 933 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 934 935 Tokens = annotate("void Class::member() && requires(Constant) {}"); 936 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 937 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 938 939 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 940 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 941 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 942 943 Tokens = 944 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 945 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 946 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 947 948 Tokens = annotate("void Class::member() && requires(typename " 949 "Namespace::Outer<T>::Inner::Constant) {}"); 950 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 951 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 952 953 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 954 " template<class T>\n" 955 " requires requires { number_zero_v<T>; }\n" 956 " [[nodiscard]] constexpr operator T() const { " 957 "return number_zero_v<T>; }\n" 958 "};"); 959 ASSERT_EQ(Tokens.size(), 44u) << Tokens; 960 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 961 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 962 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 963 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 964 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 965 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 966 967 Tokens = 968 annotate("template <class A, class B> concept C =" 969 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 970 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 971 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 972 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 973 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 974 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 975 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 976 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 977 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 978 979 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 980 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 981 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 982 983 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 984 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 985 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 986 987 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 988 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 989 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 990 991 Tokens = 992 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 993 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 994 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 995 996 Tokens = 997 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 998 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 999 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 1000 1001 Tokens = 1002 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 1003 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1004 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 1005 1006 Tokens = annotate("void foo() requires((A<T>) && C) {}"); 1007 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1008 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1009 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_BinaryOperator); 1010 1011 Tokens = annotate("void foo() requires(((A<T>) && C)) {}"); 1012 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1013 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1014 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 1015 1016 Tokens = annotate("void foo() requires([](T&&){}(t)) {}"); 1017 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1018 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1019 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1020 1021 Tokens = annotate("void foo() requires([](T&& u){}(t)) {}"); 1022 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 1023 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1024 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1025 } 1026 1027 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 1028 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 1029 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1030 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1031 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1032 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1033 1034 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 1035 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1036 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1037 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1038 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 1039 1040 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 1041 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1042 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 1043 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 1044 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 1045 1046 Tokens = annotate("foo(requires(const T t) {});"); 1047 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1048 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1049 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1050 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1051 1052 Tokens = annotate("foo(requires(const int t) {});"); 1053 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1054 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1055 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1056 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1057 1058 Tokens = annotate("foo(requires(const T t) {});"); 1059 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1060 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1061 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1062 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1063 1064 Tokens = annotate("foo(requires(int const* volatile t) {});"); 1065 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1066 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1067 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1068 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1069 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1070 1071 Tokens = annotate("foo(requires(T const* volatile t) {});"); 1072 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1073 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1074 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1075 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1076 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1077 1078 Tokens = annotate("foo(requires(T& t) {});"); 1079 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1080 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1081 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1082 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 1083 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1084 1085 Tokens = annotate("foo(requires(T&& t) {});"); 1086 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1087 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1088 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1089 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 1090 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1091 1092 Tokens = annotate("bool foo = requires(T& t) {};"); 1093 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1094 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1095 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1096 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 1097 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1098 1099 Tokens = annotate("bool foo = requires(T&& t) {};"); 1100 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1101 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1102 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1103 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 1104 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1105 1106 Tokens = 1107 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 1108 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1109 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1110 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1111 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 1112 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 1113 1114 Tokens = annotate("template <typename T>\n" 1115 "concept C = requires(T T) {\n" 1116 " requires Bar<T> && Foo<T>;\n" 1117 "};"); 1118 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1119 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1120 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1121 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1122 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1123 TT_RequiresClauseInARequiresExpression); 1124 1125 Tokens = annotate("template <typename T>\n" 1126 "concept C = requires(T T) {\n" 1127 " { t.func() } -> std::same_as<int>;" 1128 " requires Bar<T> && Foo<T>;\n" 1129 "};"); 1130 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1131 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1132 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1133 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1134 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1135 TT_RequiresClauseInARequiresExpression); 1136 1137 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1138 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1139 "requires true; };"); 1140 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1141 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1142 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1143 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1144 } 1145 1146 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1147 // Everything after #pragma region should be ImplicitStringLiteral 1148 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1149 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1150 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1151 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1152 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1153 1154 // Make sure it's annotated correctly inside a function as well 1155 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1156 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1157 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1158 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1159 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1160 } 1161 1162 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1163 const char *BaseCode = nullptr; 1164 const char *ConstrainedCode = nullptr; 1165 auto BaseTokenCount = 0u; 1166 auto RequiresTokenCount = 0u; 1167 auto PrefixTokenCount = 0u; 1168 1169 auto TestRequires = [&](int Line) { 1170 const auto BaseTokens = annotate(BaseCode); 1171 const auto ConstrainedTokens = annotate(ConstrainedCode); 1172 1173 #define LINE " (Line " << Line << ')' 1174 1175 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1176 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1177 << LINE; 1178 1179 for (auto I = 0u; I < BaseTokenCount; ++I) { 1180 EXPECT_EQ( 1181 *BaseTokens[I], 1182 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1183 << I << LINE; 1184 } 1185 1186 #undef LINE 1187 }; 1188 1189 BaseCode = "template<typename T>\n" 1190 "T Pi = 3.14;"; 1191 ConstrainedCode = "template<typename T>\n" 1192 " requires Foo<T>\n" 1193 "T Pi = 3.14;"; 1194 BaseTokenCount = 11; 1195 RequiresTokenCount = 5; 1196 PrefixTokenCount = 5; 1197 TestRequires(__LINE__); 1198 1199 BaseCode = "template<typename T>\n" 1200 "struct Bar;"; 1201 ConstrainedCode = "template<typename T>\n" 1202 " requires Foo<T>\n" 1203 "struct Bar;"; 1204 BaseTokenCount = 9; 1205 TestRequires(__LINE__); 1206 1207 BaseCode = "template<typename T>\n" 1208 "struct Bar {\n" 1209 " T foo();\n" 1210 " T bar();\n" 1211 "};"; 1212 ConstrainedCode = "template<typename T>\n" 1213 " requires Foo<T>\n" 1214 "struct Bar {\n" 1215 " T foo();\n" 1216 " T bar();\n" 1217 "};"; 1218 BaseTokenCount = 21; 1219 TestRequires(__LINE__); 1220 1221 BaseCode = "template<typename T>\n" 1222 "Bar(T) -> Bar<T>;"; 1223 ConstrainedCode = "template<typename T>\n" 1224 " requires Foo<T>\n" 1225 "Bar(T) -> Bar<T>;"; 1226 BaseTokenCount = 16; 1227 TestRequires(__LINE__); 1228 1229 BaseCode = "template<typename T>\n" 1230 "T foo();"; 1231 ConstrainedCode = "template<typename T>\n" 1232 " requires Foo<T>\n" 1233 "T foo();"; 1234 BaseTokenCount = 11; 1235 TestRequires(__LINE__); 1236 1237 BaseCode = "template<typename T>\n" 1238 "T foo() {\n" 1239 " auto bar = baz();\n" 1240 " return bar + T{};\n" 1241 "}"; 1242 ConstrainedCode = "template<typename T>\n" 1243 " requires Foo<T>\n" 1244 "T foo() {\n" 1245 " auto bar = baz();\n" 1246 " return bar + T{};\n" 1247 "}"; 1248 BaseTokenCount = 26; 1249 TestRequires(__LINE__); 1250 1251 BaseCode = "template<typename T>\n" 1252 "T foo();"; 1253 ConstrainedCode = "template<typename T>\n" 1254 "T foo() requires Foo<T>;"; 1255 BaseTokenCount = 11; 1256 PrefixTokenCount = 9; 1257 TestRequires(__LINE__); 1258 1259 BaseCode = "template<typename T>\n" 1260 "T foo() {\n" 1261 " auto bar = baz();\n" 1262 " return bar + T{};\n" 1263 "}"; 1264 ConstrainedCode = "template<typename T>\n" 1265 "T foo() requires Foo<T> {\n" 1266 " auto bar = baz();\n" 1267 " return bar + T{};\n" 1268 "}"; 1269 BaseTokenCount = 26; 1270 TestRequires(__LINE__); 1271 1272 BaseCode = "template<typename T>\n" 1273 "T foo();"; 1274 ConstrainedCode = "template<typename T>\n" 1275 " requires(Foo<T>)\n" 1276 "T foo();"; 1277 BaseTokenCount = 11; 1278 RequiresTokenCount = 7; 1279 PrefixTokenCount = 5; 1280 TestRequires(__LINE__); 1281 1282 BaseCode = "template<typename T>\n" 1283 "Bar(T) -> Bar<typename T::I>;"; 1284 ConstrainedCode = "template<typename T>\n" 1285 " requires requires(T &&t) {\n" 1286 " typename T::I;\n" 1287 " }\n" 1288 "Bar(T) -> Bar<typename T::I>;"; 1289 BaseTokenCount = 19; 1290 RequiresTokenCount = 14; 1291 PrefixTokenCount = 5; 1292 TestRequires(__LINE__); 1293 1294 BaseCode = "struct [[nodiscard]] zero_t {\n" 1295 " template<class T>\n" 1296 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1297 "};"; 1298 ConstrainedCode = 1299 "struct [[nodiscard]] zero_t {\n" 1300 " template<class T>\n" 1301 " requires requires { v<T>; }\n" 1302 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1303 "};"; 1304 BaseTokenCount = 35; 1305 RequiresTokenCount = 9; 1306 PrefixTokenCount = 13; 1307 TestRequires(__LINE__); 1308 1309 BaseCode = "constexpr Foo(Foo const &other)\n" 1310 " : value{other.value} {\n" 1311 " do_magic();\n" 1312 " do_more_magic();\n" 1313 "}"; 1314 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1315 " requires std::is_copy_constructible<T>\n" 1316 " : value{other.value} {\n" 1317 " do_magic();\n" 1318 " do_more_magic();\n" 1319 "}"; 1320 BaseTokenCount = 26; 1321 RequiresTokenCount = 7; 1322 PrefixTokenCount = 8; 1323 TestRequires(__LINE__); 1324 1325 BaseCode = "constexpr Foo(Foo const &other)\n" 1326 " : value{other.value} {\n" 1327 " do_magic();\n" 1328 " do_more_magic();\n" 1329 "}"; 1330 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1331 " requires (std::is_copy_constructible<T>)\n" 1332 " : value{other.value} {\n" 1333 " do_magic();\n" 1334 " do_more_magic();\n" 1335 "}"; 1336 RequiresTokenCount = 9; 1337 TestRequires(__LINE__); 1338 } 1339 1340 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1341 auto Tokens = annotate("__asm{\n" 1342 "a:\n" 1343 "};"); 1344 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1345 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1346 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1347 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1348 } 1349 1350 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1351 auto Tokens = annotate("int (^)() = ^ ()\n" 1352 " external_source_symbol() { //\n" 1353 " return 1;\n" 1354 "};"); 1355 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1356 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1357 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1358 1359 Tokens = annotate("int *p = ^int*(){ //\n" 1360 " return nullptr;\n" 1361 "}();"); 1362 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1363 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1364 } 1365 1366 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1367 auto Tokens = annotate("void f() {\n" 1368 " //\n" 1369 " BOOL a = [b.c n] > 1;\n" 1370 "}"); 1371 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1372 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1373 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1374 } 1375 1376 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1377 auto Tokens = annotate("[]() constexpr {}"); 1378 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1379 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1380 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1381 1382 Tokens = annotate("[]() consteval {}"); 1383 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1384 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1385 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1386 1387 Tokens = annotate("[]() mutable {}"); 1388 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1389 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1390 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1391 1392 Tokens = annotate("[]() static {}"); 1393 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1394 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1395 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1396 1397 Tokens = annotate("[]() -> auto {}"); 1398 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1399 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1400 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1401 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1402 1403 Tokens = annotate("[]() -> auto & {}"); 1404 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1405 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1406 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1407 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1408 1409 Tokens = annotate("[]() -> auto * {}"); 1410 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1411 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1412 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1413 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1414 1415 Tokens = annotate("[] {}"); 1416 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1417 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1418 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1419 1420 Tokens = annotate("[] noexcept {}"); 1421 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1422 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1423 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1424 1425 Tokens = annotate("[] -> auto {}"); 1426 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1427 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1428 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1429 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1430 1431 Tokens = annotate("[] <typename T> () {}"); 1432 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1433 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1434 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1435 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1436 1437 Tokens = annotate("[] <typename T> {}"); 1438 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1439 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1440 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1441 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1442 1443 Tokens = annotate("[] <typename... T> () {}"); 1444 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1445 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1446 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1447 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1448 1449 Tokens = annotate("[] <typename... T> {}"); 1450 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1451 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1452 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1453 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1454 1455 Tokens = annotate("[] <int... T> () {}"); 1456 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1457 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1458 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1459 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1460 1461 Tokens = annotate("[] <int... T> {}"); 1462 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1463 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1464 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1465 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1466 1467 Tokens = annotate("[] <Foo... T> () {}"); 1468 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1469 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1470 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1471 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1472 1473 Tokens = annotate("[] <Foo... T> {}"); 1474 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1475 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1476 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1477 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1478 1479 // Lambdas with a requires-clause 1480 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1481 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1482 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1483 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1484 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1485 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1486 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1487 1488 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1489 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1490 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1491 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1492 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1493 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1494 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1495 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1496 1497 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1498 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1499 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1500 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1501 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1502 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1503 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1504 1505 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1506 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1507 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1508 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1509 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1510 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1511 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1512 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1513 1514 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1515 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1516 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1517 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1518 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1519 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1520 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1521 1522 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1523 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1524 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1525 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1526 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1527 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1528 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1529 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1530 1531 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1532 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1533 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1534 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1535 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1536 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1537 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1538 1539 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1540 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1541 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1542 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1543 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1544 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1545 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1546 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1547 1548 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1549 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1550 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1551 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1552 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1553 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1554 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1555 1556 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1557 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1558 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1559 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1560 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1561 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1562 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1563 1564 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1565 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1566 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1567 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1568 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1569 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1570 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1571 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1572 1573 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1574 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1575 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1576 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1577 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1578 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1579 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1580 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1581 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1582 } 1583 1584 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1585 auto Tokens = annotate("template <typename T>\n" 1586 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1587 "string OldFunction(const string ¶meter) {}"); 1588 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1589 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1590 1591 Tokens = annotate("template <typename T>\n" 1592 "A(T) noexcept;"); 1593 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1594 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1595 } 1596 1597 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1598 auto Tokens = annotate("void f [[noreturn]] ();"); 1599 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1600 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1601 1602 Tokens = annotate("void f [[noreturn]] () {}"); 1603 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1604 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1605 1606 Tokens = annotate("class Foo { public: Foo(); };"); 1607 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1608 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_FunctionDeclarationName); 1609 1610 Tokens = annotate("class Foo { public: ~Foo(); };"); 1611 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1612 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_FunctionDeclarationName); 1613 1614 Tokens = annotate("struct Foo { [[deprecated]] Foo() {} };"); 1615 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1616 EXPECT_TOKEN(Tokens[8], tok::identifier, TT_FunctionDeclarationName); 1617 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1618 1619 Tokens = annotate("struct Foo { [[deprecated]] ~Foo() {} };"); 1620 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1621 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_FunctionDeclarationName); 1622 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1623 1624 Tokens = annotate("struct Foo { Foo() [[deprecated]] {} };"); 1625 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1626 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_FunctionDeclarationName); 1627 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1628 1629 Tokens = annotate("struct Foo { ~Foo() [[deprecated]] {} };"); 1630 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1631 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_FunctionDeclarationName); 1632 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1633 1634 Tokens = annotate("struct Foo { [[deprecated]] explicit Foo() {} };"); 1635 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1636 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_FunctionDeclarationName); 1637 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1638 1639 Tokens = annotate("struct Foo { virtual [[deprecated]] ~Foo() {} };"); 1640 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1641 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_FunctionDeclarationName); 1642 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1643 1644 Tokens = annotate("Foo::Foo() {}"); 1645 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1646 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_FunctionDeclarationName); 1647 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_FunctionLBrace); 1648 1649 Tokens = annotate("Foo::~Foo() {}"); 1650 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1651 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_FunctionDeclarationName); 1652 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_FunctionLBrace); 1653 1654 Tokens = annotate("#define FOO Foo::\n" 1655 "FOO Foo();"); 1656 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1657 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_FunctionDeclarationName); 1658 1659 Tokens = annotate("struct Foo {\n" 1660 " Bar (*func)();\n" 1661 "};"); 1662 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1663 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_Unknown); 1664 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_FunctionTypeLParen); 1665 } 1666 1667 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1668 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1669 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1670 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1671 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1672 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1673 } 1674 1675 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1676 auto Tokens = annotate("auto f() -> int;"); 1677 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1678 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1679 1680 Tokens = annotate("auto operator->() -> int;"); 1681 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1682 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1683 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1684 1685 Tokens = annotate("auto operator++(int) -> int;"); 1686 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1687 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1688 1689 Tokens = annotate("auto operator=() -> int;"); 1690 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1691 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1692 1693 Tokens = annotate("auto operator=(int) -> int;"); 1694 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1695 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1696 1697 Tokens = annotate("auto foo() -> auto { return Val; }"); 1698 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1699 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1700 1701 Tokens = annotate("struct S { auto bar() const -> int; };"); 1702 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1703 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1704 1705 // Not trailing return arrows 1706 Tokens = annotate("auto a = b->c;"); 1707 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1708 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1709 1710 Tokens = annotate("auto a = (b)->c;"); 1711 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1712 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1713 1714 Tokens = annotate("auto a = b()->c;"); 1715 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1716 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1717 1718 Tokens = annotate("auto a = b->c();"); 1719 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1720 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1721 1722 Tokens = annotate("decltype(auto) a = b()->c;"); 1723 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1724 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1725 1726 Tokens = annotate("void f() { auto a = b->c(); }"); 1727 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1728 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1729 1730 Tokens = annotate("void f() { auto a = b()->c; }"); 1731 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1732 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1733 1734 // Mixed 1735 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1736 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1737 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1738 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1739 } 1740 1741 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1742 auto Annotate = [this](llvm::StringRef Code) { 1743 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1744 }; 1745 // Test that unary operators get labeled as such and that operators like '++' 1746 // don't get split. 1747 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1748 tok::tilde, tok::amp, tok::pipe, 1749 tok::caret, tok::plusplus, tok::minusminus}; 1750 for (auto Kind : Unary) { 1751 auto Tokens = 1752 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1753 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1754 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1755 } 1756 // Operators formed by joining two operators like '^~'. For some of these 1757 // joined operators, we don't have a separate type, so we only test for their 1758 // precedence. 1759 std::pair<prec::Level, std::string> JoinedBinary[] = { 1760 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1761 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1762 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1763 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1764 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1765 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1766 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1767 {prec::Equality, "=="}, {prec::Equality, "!="}, 1768 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1769 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1770 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1771 }; 1772 for (auto Operator : JoinedBinary) { 1773 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1774 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1775 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1776 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1777 } 1778 // '~^' and '^~' can be unary as well as binary operators. 1779 auto Tokens = Annotate("x = ~^x;"); 1780 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1781 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1782 Tokens = Annotate("x = ^~x;"); 1783 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1784 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1785 // The unary operators '~&' and '~|' can only be unary operators. The current 1786 // implementation treats each of them as separate unary '~' and '&' or '|' 1787 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1788 // there is a test that there is no space in between. And even if a new line 1789 // is inserted between the '~' and '|', the semantic meaning is the same as 1790 // the joined operator, so the CanBreakBefore property doesn't need to be 1791 // false for the second operator. 1792 Tokens = Annotate("x = ~&x;"); 1793 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1794 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1795 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1796 Tokens = Annotate("x = ~|x;"); 1797 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1798 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1799 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1800 // Test for block label colons. 1801 Tokens = Annotate("begin : x\n" 1802 "end : x"); 1803 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1804 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1805 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1806 // Test that the dimension colon is annotated correctly. 1807 Tokens = Annotate("var [1 : 0] x;"); 1808 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1809 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1810 Tokens = Annotate("extern function [1 : 0] x;"); 1811 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1812 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1813 Tokens = Annotate("module test\n" 1814 " (input wire [7 : 0] a[7 : 0]);\n" 1815 "endmodule"); 1816 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1817 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1818 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1819 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1820 // Test case labels and ternary operators. 1821 Tokens = Annotate("case (x)\n" 1822 " x:\n" 1823 " x;\n" 1824 "endcase\n"); 1825 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1826 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1827 Tokens = Annotate("case (x)\n" 1828 " x ? x : x:\n" 1829 " x;\n" 1830 "endcase\n"); 1831 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1832 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1833 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1834 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1835 // Non-blocking assignments. 1836 Tokens = Annotate("a <= b;"); 1837 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1838 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1839 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1840 Tokens = Annotate("if (a <= b) break;"); 1841 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1842 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1843 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1844 Tokens = Annotate("a <= b <= a;"); 1845 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1846 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1847 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1848 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1849 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1850 1851 // Port lists in module instantiation. 1852 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1853 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1854 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1855 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1856 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1857 "instance_2(port_2);"); 1858 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1859 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1860 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1861 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1862 1863 // Condition parentheses. 1864 Tokens = Annotate("assert (x);"); 1865 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1866 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1867 Tokens = Annotate("assert #0 (x);"); 1868 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1869 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1870 Tokens = Annotate("assert final (x);"); 1871 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1872 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1873 Tokens = Annotate("foreach (x[x]) continue;"); 1874 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1875 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1876 Tokens = Annotate("repeat (x[x]) continue;"); 1877 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1878 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1879 Tokens = Annotate("case (x) endcase;"); 1880 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1881 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1882 1883 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1884 // future, please adapt if those tokens get annotated. This test is only here 1885 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1886 Tokens = Annotate("always @(posedge x, posedge y);"); 1887 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1888 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1889 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1890 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1891 1892 // String literals in concatenation. 1893 Tokens = Annotate("x = {\"\"};"); 1894 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1895 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1896 Tokens = Annotate("x = {\"\", \"\"};"); 1897 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1898 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1899 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1900 Tokens = Annotate("x = '{{\"\"}};"); 1901 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1902 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1903 // Cases where the string should not be annotated that type. Fix the 1904 // `TT_Unknown` if needed in the future. 1905 Tokens = Annotate("x = {\"\" == \"\"};"); 1906 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1907 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_Unknown); 1908 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_Unknown); 1909 Tokens = Annotate("x = {(\"\")};"); 1910 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1911 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1912 Tokens = Annotate("x = '{\"\"};"); 1913 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1914 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1915 } 1916 1917 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1918 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1919 1920 // The TT_Unknown is clearly not binding for the future, please adapt if those 1921 // tokens get annotated. 1922 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1923 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1924 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1925 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1926 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1927 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1928 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1929 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1930 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1931 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1932 1933 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1934 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1935 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1936 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1937 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1938 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1939 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1940 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1941 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1942 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1943 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1944 } 1945 1946 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 1947 auto Tokens = annotate("if (x) {}"); 1948 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1949 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1950 Tokens = annotate("if constexpr (x) {}"); 1951 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1952 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1953 Tokens = annotate("if CONSTEXPR (x) {}"); 1954 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1955 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1956 Tokens = annotate("if (x) {} else if (x) {}"); 1957 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1958 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1959 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 1960 } 1961 1962 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 1963 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 1964 1965 auto Tokens = annotate("int? a;", Style); 1966 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 1967 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1968 1969 Tokens = annotate("int? a = 1;", Style); 1970 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 1971 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1972 1973 Tokens = annotate("int?)", Style); 1974 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1975 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1976 1977 Tokens = annotate("int?>", Style); 1978 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1979 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1980 1981 Tokens = annotate("cond? id : id2", Style); 1982 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 1983 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1984 1985 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 1986 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 1987 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1988 } 1989 1990 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 1991 auto Tokens = annotate("{ x: break; }"); 1992 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1993 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 1994 Tokens = annotate("{ case x: break; }"); 1995 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1996 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 1997 Tokens = annotate("{ x: { break; } }"); 1998 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1999 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 2000 Tokens = annotate("{ case x: { break; } }"); 2001 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2002 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 2003 } 2004 2005 TEST_F(TokenAnnotatorTest, UnderstandsNestedBlocks) { 2006 // The closing braces are not annotated. It doesn't seem to cause a problem. 2007 // So we only test for the opening braces. 2008 auto Tokens = annotate("{\n" 2009 " {\n" 2010 " { int a = 0; }\n" 2011 " }\n" 2012 " {}\n" 2013 "}"); 2014 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2015 EXPECT_BRACE_KIND(Tokens[0], BK_Block); 2016 EXPECT_BRACE_KIND(Tokens[1], BK_Block); 2017 EXPECT_BRACE_KIND(Tokens[2], BK_Block); 2018 EXPECT_BRACE_KIND(Tokens[10], BK_Block); 2019 } 2020 2021 TEST_F(TokenAnnotatorTest, UnderstandDesignatedInitializers) { 2022 auto Tokens = annotate("SomeStruct { .a = 1 };"); 2023 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 2024 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2025 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2026 2027 Tokens = annotate("SomeStruct { .a = 1, .b = 2 };"); 2028 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2029 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2030 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2031 EXPECT_TOKEN(Tokens[7], tok::period, TT_DesignatedInitializerPeriod); 2032 2033 Tokens = annotate("SomeStruct {\n" 2034 "#ifdef FOO\n" 2035 " .a = 1,\n" 2036 "#endif\n" 2037 " .b = 2\n" 2038 "};"); 2039 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 2040 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2041 EXPECT_TOKEN(Tokens[5], tok::period, TT_DesignatedInitializerPeriod); 2042 EXPECT_TOKEN(Tokens[12], tok::period, TT_DesignatedInitializerPeriod); 2043 2044 Tokens = annotate("SomeStruct {\n" 2045 "#if defined FOO\n" 2046 " .a = 1,\n" 2047 "#endif\n" 2048 " .b = 2\n" 2049 "};"); 2050 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 2051 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2052 EXPECT_TOKEN(Tokens[6], tok::period, TT_DesignatedInitializerPeriod); 2053 EXPECT_TOKEN(Tokens[13], tok::period, TT_DesignatedInitializerPeriod); 2054 } 2055 2056 TEST_F(TokenAnnotatorTest, UnderstandsJavaScript) { 2057 auto Annotate = [this](llvm::StringRef Code) { 2058 return annotate(Code, getLLVMStyle(FormatStyle::LK_JavaScript)); 2059 }; 2060 2061 // Dictionary. 2062 auto Tokens = Annotate("var x = {'x' : 1, 'y' : 2};"); 2063 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2064 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_DictLiteral); 2065 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_SelectorName); 2066 EXPECT_TOKEN(Tokens[5], tok::colon, TT_DictLiteral); 2067 EXPECT_TOKEN(Tokens[8], tok::string_literal, TT_SelectorName); 2068 EXPECT_TOKEN(Tokens[9], tok::colon, TT_DictLiteral); 2069 // Change when we need to annotate these. 2070 EXPECT_BRACE_KIND(Tokens[3], BK_Unknown); 2071 EXPECT_BRACE_KIND(Tokens[11], BK_Unknown); 2072 EXPECT_TOKEN(Tokens[11], tok::r_brace, TT_Unknown); 2073 } 2074 2075 TEST_F(TokenAnnotatorTest, UnderstandsAttributes) { 2076 auto Tokens = annotate("bool foo __attribute__((unused));"); 2077 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2078 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_AttributeLParen); 2079 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_Unknown); 2080 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_Unknown); 2081 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_AttributeRParen); 2082 } 2083 2084 } // namespace 2085 } // namespace format 2086 } // namespace clang 2087