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 Tokens = annotate("decltype(auto) operator()(T &x);"); 758 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 759 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_TypeDeclarationParen); 760 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_TypeDeclarationParen); 761 EXPECT_TOKEN(Tokens[4], tok::kw_operator, TT_FunctionDeclarationName); 762 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperator); 763 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_OverloadedOperator); 764 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperatorLParen); 765 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 766 } 767 768 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 769 struct { 770 const char *Text; 771 tok::TokenKind Kind; 772 } Operators[] = {{"+", tok::plus}, 773 {"-", tok::minus}, 774 // FIXME: 775 // {"*", tok::star}, 776 {"/", tok::slash}, 777 {"%", tok::percent}, 778 {"^", tok::caret}, 779 // FIXME: 780 // {"&", tok::amp}, 781 {"|", tok::pipe}, 782 {"~", tok::tilde}, 783 {"!", tok::exclaim}, 784 {"=", tok::equal}, 785 // FIXME: 786 // {"<", tok::less}, 787 {">", tok::greater}, 788 {"+=", tok::plusequal}, 789 {"-=", tok::minusequal}, 790 {"*=", tok::starequal}, 791 {"/=", tok::slashequal}, 792 {"%=", tok::percentequal}, 793 {"^=", tok::caretequal}, 794 {"&=", tok::ampequal}, 795 {"|=", tok::pipeequal}, 796 {"<<", tok::lessless}, 797 {">>", tok::greatergreater}, 798 {">>=", tok::greatergreaterequal}, 799 {"<<=", tok::lesslessequal}, 800 {"==", tok::equalequal}, 801 {"!=", tok::exclaimequal}, 802 {"<=", tok::lessequal}, 803 {">=", tok::greaterequal}, 804 {"<=>", tok::spaceship}, 805 {"&&", tok::ampamp}, 806 {"||", tok::pipepipe}, 807 {"++", tok::plusplus}, 808 {"--", tok::minusminus}, 809 {",", tok::comma}, 810 {"->*", tok::arrowstar}, 811 {"->", tok::arrow}}; 812 813 for (const auto &Operator : Operators) { 814 std::string Input("C<&operator"); 815 Input += Operator.Text; 816 Input += " > a;"; 817 auto Tokens = annotate(std::string(Input)); 818 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 819 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 820 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 821 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 822 } 823 824 auto Tokens = annotate("C<&operator< <X>> lt;"); 825 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 826 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 827 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 828 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 829 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 830 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 831 } 832 833 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 834 auto Tokens = annotate("template <typename T>\n" 835 "concept C = (Foo && Bar) && (Bar && Baz);"); 836 837 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 838 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 839 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 840 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 841 842 Tokens = annotate("template <typename T>\n" 843 "concept C = Foo && !Bar;"); 844 845 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 846 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 847 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 848 849 Tokens = annotate("template <typename T>\n" 850 "concept C = requires(T t) {\n" 851 " { t.foo() };\n" 852 "} && Bar<T> && Baz<T>;"); 853 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 854 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 855 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 856 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 857 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 858 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 859 860 Tokens = annotate("template<typename T>\n" 861 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 862 "struct Foo;"); 863 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 864 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 865 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 866 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 867 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 868 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 869 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 870 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 871 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 872 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 873 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 874 875 Tokens = 876 annotate("template<typename T>\n" 877 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 878 "struct Foo;"); 879 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 880 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 881 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 882 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 883 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 884 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 885 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 886 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 887 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 888 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 889 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 890 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 891 892 Tokens = annotate("template <typename T>\n" 893 "void foo(T) noexcept requires Bar<T>;"); 894 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 895 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 896 897 Tokens = annotate("template <typename T>\n" 898 "requires Bar<T> || Baz<T>\n" 899 "auto foo(T) -> int;"); 900 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 901 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 902 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 903 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 904 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 905 906 Tokens = annotate("template <typename T>\n" 907 "requires Bar<T>\n" 908 "bool foo(T) { return false; }"); 909 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 910 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 911 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 912 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 913 914 Tokens = annotate("template <typename T>\n" 915 "requires Bar<T>\n" 916 "decltype(auto) foo(T) { return false; }"); 917 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 918 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 919 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 920 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 921 922 Tokens = annotate("template <typename T>\n" 923 "struct S {\n" 924 " void foo() const requires Bar<T>;\n" 925 " void bar() const & requires Baz<T>;\n" 926 " void bar() && requires Baz2<T>;\n" 927 " void baz() const & noexcept requires Baz<T>;\n" 928 " void baz() && noexcept requires Baz2<T>;\n" 929 "};\n" 930 "\n" 931 "void S::bar() const & requires Baz<T> { }"); 932 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 933 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 934 EXPECT_TOKEN(Tokens[24], tok::amp, TT_PointerOrReference); 935 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 936 EXPECT_TOKEN(Tokens[35], tok::ampamp, TT_PointerOrReference); 937 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 938 EXPECT_TOKEN(Tokens[47], tok::amp, TT_PointerOrReference); 939 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 940 EXPECT_TOKEN(Tokens[59], tok::ampamp, TT_PointerOrReference); 941 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 942 EXPECT_TOKEN(Tokens[76], tok::amp, TT_PointerOrReference); 943 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 944 945 Tokens = annotate("void Class::member() && requires(Constant) {}"); 946 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 947 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 948 949 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 950 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 951 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 952 953 Tokens = 954 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 955 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 956 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 957 958 Tokens = annotate("void Class::member() && requires(typename " 959 "Namespace::Outer<T>::Inner::Constant) {}"); 960 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 961 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 962 963 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 964 " template<class T>\n" 965 " requires requires { number_zero_v<T>; }\n" 966 " [[nodiscard]] constexpr operator T() const { " 967 "return number_zero_v<T>; }\n" 968 "};"); 969 ASSERT_EQ(Tokens.size(), 44u) << Tokens; 970 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 971 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 972 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 973 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 974 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 975 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 976 977 Tokens = 978 annotate("template <class A, class B> concept C =" 979 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 980 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 981 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 982 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 983 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 984 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 985 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 986 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 987 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 988 989 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 990 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 991 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 992 993 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 994 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 995 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 996 997 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 998 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 999 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1000 1001 Tokens = 1002 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 1003 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1004 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1005 1006 Tokens = 1007 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 1008 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1009 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 1010 1011 Tokens = 1012 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 1013 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1014 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 1015 1016 Tokens = annotate("void foo() requires((A<T>) && C) {}"); 1017 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1018 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1019 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_BinaryOperator); 1020 1021 Tokens = annotate("void foo() requires(((A<T>) && C)) {}"); 1022 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1023 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1024 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 1025 1026 Tokens = annotate("void foo() requires([](T&&){}(t)) {}"); 1027 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1028 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1029 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1030 1031 Tokens = annotate("void foo() requires([](T&& u){}(t)) {}"); 1032 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 1033 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1034 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1035 } 1036 1037 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 1038 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 1039 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1040 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1041 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1042 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1043 1044 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 1045 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1046 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1047 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1048 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 1049 1050 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 1051 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1052 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 1053 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 1054 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 1055 1056 Tokens = annotate("foo(requires(const T t) {});"); 1057 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1058 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1059 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1060 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1061 1062 Tokens = annotate("foo(requires(const int t) {});"); 1063 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1064 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1065 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1066 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1067 1068 Tokens = annotate("foo(requires(const T t) {});"); 1069 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1070 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1071 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1072 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1073 1074 Tokens = annotate("foo(requires(int const* volatile t) {});"); 1075 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1076 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1077 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1078 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1079 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1080 1081 Tokens = annotate("foo(requires(T const* volatile t) {});"); 1082 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1083 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1084 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1085 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1086 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1087 1088 Tokens = annotate("foo(requires(T& t) {});"); 1089 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1090 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1091 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1092 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 1093 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1094 1095 Tokens = annotate("foo(requires(T&& t) {});"); 1096 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1097 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1098 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1099 EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference); 1100 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1101 1102 Tokens = annotate("bool foo = requires(T& t) {};"); 1103 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1104 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1105 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1106 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 1107 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1108 1109 Tokens = annotate("bool foo = requires(T&& t) {};"); 1110 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1111 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1112 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1113 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 1114 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1115 1116 Tokens = 1117 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 1118 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1119 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1120 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1121 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 1122 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 1123 1124 Tokens = annotate("template <typename T>\n" 1125 "concept C = requires(T T) {\n" 1126 " requires Bar<T> && Foo<T>;\n" 1127 "};"); 1128 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1129 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1130 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1131 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1132 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1133 TT_RequiresClauseInARequiresExpression); 1134 1135 Tokens = annotate("template <typename T>\n" 1136 "concept C = requires(T T) {\n" 1137 " { t.func() } -> std::same_as<int>;" 1138 " requires Bar<T> && Foo<T>;\n" 1139 "};"); 1140 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1141 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1142 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1143 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1144 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1145 TT_RequiresClauseInARequiresExpression); 1146 1147 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1148 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1149 "requires true; };"); 1150 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1151 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1152 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1153 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1154 } 1155 1156 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1157 // Everything after #pragma region should be ImplicitStringLiteral 1158 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1159 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1160 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1161 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1162 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1163 1164 // Make sure it's annotated correctly inside a function as well 1165 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1166 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1167 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1168 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1169 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1170 } 1171 1172 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1173 const char *BaseCode = nullptr; 1174 const char *ConstrainedCode = nullptr; 1175 auto BaseTokenCount = 0u; 1176 auto RequiresTokenCount = 0u; 1177 auto PrefixTokenCount = 0u; 1178 1179 auto TestRequires = [&](int Line) { 1180 const auto BaseTokens = annotate(BaseCode); 1181 const auto ConstrainedTokens = annotate(ConstrainedCode); 1182 1183 #define LINE " (Line " << Line << ')' 1184 1185 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1186 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1187 << LINE; 1188 1189 for (auto I = 0u; I < BaseTokenCount; ++I) { 1190 EXPECT_EQ( 1191 *BaseTokens[I], 1192 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1193 << I << LINE; 1194 } 1195 1196 #undef LINE 1197 }; 1198 1199 BaseCode = "template<typename T>\n" 1200 "T Pi = 3.14;"; 1201 ConstrainedCode = "template<typename T>\n" 1202 " requires Foo<T>\n" 1203 "T Pi = 3.14;"; 1204 BaseTokenCount = 11; 1205 RequiresTokenCount = 5; 1206 PrefixTokenCount = 5; 1207 TestRequires(__LINE__); 1208 1209 BaseCode = "template<typename T>\n" 1210 "struct Bar;"; 1211 ConstrainedCode = "template<typename T>\n" 1212 " requires Foo<T>\n" 1213 "struct Bar;"; 1214 BaseTokenCount = 9; 1215 TestRequires(__LINE__); 1216 1217 BaseCode = "template<typename T>\n" 1218 "struct Bar {\n" 1219 " T foo();\n" 1220 " T bar();\n" 1221 "};"; 1222 ConstrainedCode = "template<typename T>\n" 1223 " requires Foo<T>\n" 1224 "struct Bar {\n" 1225 " T foo();\n" 1226 " T bar();\n" 1227 "};"; 1228 BaseTokenCount = 21; 1229 TestRequires(__LINE__); 1230 1231 BaseCode = "template<typename T>\n" 1232 "Bar(T) -> Bar<T>;"; 1233 ConstrainedCode = "template<typename T>\n" 1234 " requires Foo<T>\n" 1235 "Bar(T) -> Bar<T>;"; 1236 BaseTokenCount = 16; 1237 TestRequires(__LINE__); 1238 1239 BaseCode = "template<typename T>\n" 1240 "T foo();"; 1241 ConstrainedCode = "template<typename T>\n" 1242 " requires Foo<T>\n" 1243 "T foo();"; 1244 BaseTokenCount = 11; 1245 TestRequires(__LINE__); 1246 1247 BaseCode = "template<typename T>\n" 1248 "T foo() {\n" 1249 " auto bar = baz();\n" 1250 " return bar + T{};\n" 1251 "}"; 1252 ConstrainedCode = "template<typename T>\n" 1253 " requires Foo<T>\n" 1254 "T foo() {\n" 1255 " auto bar = baz();\n" 1256 " return bar + T{};\n" 1257 "}"; 1258 BaseTokenCount = 26; 1259 TestRequires(__LINE__); 1260 1261 BaseCode = "template<typename T>\n" 1262 "T foo();"; 1263 ConstrainedCode = "template<typename T>\n" 1264 "T foo() requires Foo<T>;"; 1265 BaseTokenCount = 11; 1266 PrefixTokenCount = 9; 1267 TestRequires(__LINE__); 1268 1269 BaseCode = "template<typename T>\n" 1270 "T foo() {\n" 1271 " auto bar = baz();\n" 1272 " return bar + T{};\n" 1273 "}"; 1274 ConstrainedCode = "template<typename T>\n" 1275 "T foo() requires Foo<T> {\n" 1276 " auto bar = baz();\n" 1277 " return bar + T{};\n" 1278 "}"; 1279 BaseTokenCount = 26; 1280 TestRequires(__LINE__); 1281 1282 BaseCode = "template<typename T>\n" 1283 "T foo();"; 1284 ConstrainedCode = "template<typename T>\n" 1285 " requires(Foo<T>)\n" 1286 "T foo();"; 1287 BaseTokenCount = 11; 1288 RequiresTokenCount = 7; 1289 PrefixTokenCount = 5; 1290 TestRequires(__LINE__); 1291 1292 BaseCode = "template<typename T>\n" 1293 "Bar(T) -> Bar<typename T::I>;"; 1294 ConstrainedCode = "template<typename T>\n" 1295 " requires requires(T &&t) {\n" 1296 " typename T::I;\n" 1297 " }\n" 1298 "Bar(T) -> Bar<typename T::I>;"; 1299 BaseTokenCount = 19; 1300 RequiresTokenCount = 14; 1301 PrefixTokenCount = 5; 1302 TestRequires(__LINE__); 1303 1304 BaseCode = "struct [[nodiscard]] zero_t {\n" 1305 " template<class T>\n" 1306 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1307 "};"; 1308 ConstrainedCode = 1309 "struct [[nodiscard]] zero_t {\n" 1310 " template<class T>\n" 1311 " requires requires { v<T>; }\n" 1312 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1313 "};"; 1314 BaseTokenCount = 35; 1315 RequiresTokenCount = 9; 1316 PrefixTokenCount = 13; 1317 TestRequires(__LINE__); 1318 1319 BaseCode = "constexpr Foo(Foo const &other)\n" 1320 " : value{other.value} {\n" 1321 " do_magic();\n" 1322 " do_more_magic();\n" 1323 "}"; 1324 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1325 " requires std::is_copy_constructible<T>\n" 1326 " : value{other.value} {\n" 1327 " do_magic();\n" 1328 " do_more_magic();\n" 1329 "}"; 1330 BaseTokenCount = 26; 1331 RequiresTokenCount = 7; 1332 PrefixTokenCount = 8; 1333 TestRequires(__LINE__); 1334 1335 BaseCode = "constexpr Foo(Foo const &other)\n" 1336 " : value{other.value} {\n" 1337 " do_magic();\n" 1338 " do_more_magic();\n" 1339 "}"; 1340 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1341 " requires (std::is_copy_constructible<T>)\n" 1342 " : value{other.value} {\n" 1343 " do_magic();\n" 1344 " do_more_magic();\n" 1345 "}"; 1346 RequiresTokenCount = 9; 1347 TestRequires(__LINE__); 1348 } 1349 1350 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1351 auto Tokens = annotate("__asm{\n" 1352 "a:\n" 1353 "};"); 1354 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1355 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1356 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1357 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1358 } 1359 1360 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1361 auto Tokens = annotate("int (^)() = ^ ()\n" 1362 " external_source_symbol() { //\n" 1363 " return 1;\n" 1364 "};"); 1365 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1366 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1367 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1368 1369 Tokens = annotate("int *p = ^int*(){ //\n" 1370 " return nullptr;\n" 1371 "}();"); 1372 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1373 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1374 } 1375 1376 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1377 auto Tokens = annotate("void f() {\n" 1378 " //\n" 1379 " BOOL a = [b.c n] > 1;\n" 1380 "}"); 1381 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1382 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1383 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1384 } 1385 1386 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1387 auto Tokens = annotate("[]() constexpr {}"); 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("[]() consteval {}"); 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("[]() mutable {}"); 1398 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1399 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1400 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1401 1402 Tokens = annotate("[]() static {}"); 1403 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1404 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1405 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1406 1407 Tokens = annotate("[]() -> auto {}"); 1408 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1409 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1410 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1411 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1412 1413 Tokens = annotate("[]() -> auto & {}"); 1414 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1415 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1416 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1417 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1418 1419 Tokens = annotate("[]() -> auto * {}"); 1420 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1421 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1422 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1423 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1424 1425 Tokens = annotate("[] {}"); 1426 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1427 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1428 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1429 1430 Tokens = annotate("[] noexcept {}"); 1431 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1432 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1433 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1434 1435 Tokens = annotate("[] -> auto {}"); 1436 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1437 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1438 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1439 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1440 1441 Tokens = annotate("[] <typename T> () {}"); 1442 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1443 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1444 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1445 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1446 1447 Tokens = annotate("[] <typename T> {}"); 1448 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1449 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1450 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1451 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1452 1453 Tokens = annotate("[] <typename... T> () {}"); 1454 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1455 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1456 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1457 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1458 1459 Tokens = annotate("[] <typename... T> {}"); 1460 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1461 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1462 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1463 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1464 1465 Tokens = annotate("[] <int... T> () {}"); 1466 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1467 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1468 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1469 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1470 1471 Tokens = annotate("[] <int... T> {}"); 1472 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1473 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1474 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1475 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1476 1477 Tokens = annotate("[] <Foo... T> () {}"); 1478 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1479 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1480 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1481 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1482 1483 Tokens = annotate("[] <Foo... T> {}"); 1484 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1485 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1486 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1487 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1488 1489 // Lambdas with a requires-clause 1490 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1491 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1492 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1493 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1494 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1495 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1496 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1497 1498 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1499 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1500 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1501 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1502 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1503 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1504 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1505 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1506 1507 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1508 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1509 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1510 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1511 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1512 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1513 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1514 1515 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1516 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1517 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1518 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1519 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1520 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1521 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1522 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1523 1524 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1525 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1526 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1527 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1528 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1529 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1530 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1531 1532 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1533 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1534 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1535 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1536 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1537 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1538 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1539 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1540 1541 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1542 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1543 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1544 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1545 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1546 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1547 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1548 1549 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1550 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1551 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1552 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1553 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1554 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1555 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1556 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1557 1558 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1559 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1560 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1561 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1562 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1563 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1564 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1565 1566 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1567 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1568 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1569 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1570 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1571 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1572 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1573 1574 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1575 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1576 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1577 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1578 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1579 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1580 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1581 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1582 1583 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1584 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1585 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1586 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1587 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1588 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1589 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1590 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1591 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1592 } 1593 1594 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1595 auto Tokens = annotate("template <typename T>\n" 1596 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1597 "string OldFunction(const string ¶meter) {}"); 1598 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1599 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1600 1601 Tokens = annotate("template <typename T>\n" 1602 "A(T) noexcept;"); 1603 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1604 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1605 } 1606 1607 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1608 auto Tokens = annotate("void f [[noreturn]] ();"); 1609 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1610 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1611 1612 Tokens = annotate("void f [[noreturn]] () {}"); 1613 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1614 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1615 1616 Tokens = annotate("class Foo { public: Foo(); };"); 1617 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1618 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_FunctionDeclarationName); 1619 1620 Tokens = annotate("class Foo { public: ~Foo(); };"); 1621 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1622 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_FunctionDeclarationName); 1623 1624 Tokens = annotate("struct Foo { [[deprecated]] Foo() {} };"); 1625 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1626 EXPECT_TOKEN(Tokens[8], tok::identifier, TT_FunctionDeclarationName); 1627 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1628 1629 Tokens = annotate("struct Foo { [[deprecated]] ~Foo() {} };"); 1630 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1631 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_FunctionDeclarationName); 1632 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1633 1634 Tokens = annotate("struct Foo { Foo() [[deprecated]] {} };"); 1635 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1636 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_FunctionDeclarationName); 1637 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1638 1639 Tokens = annotate("struct Foo { ~Foo() [[deprecated]] {} };"); 1640 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1641 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_FunctionDeclarationName); 1642 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1643 1644 Tokens = annotate("struct Foo { [[deprecated]] explicit Foo() {} };"); 1645 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1646 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_FunctionDeclarationName); 1647 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1648 1649 Tokens = annotate("struct Foo { virtual [[deprecated]] ~Foo() {} };"); 1650 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1651 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_FunctionDeclarationName); 1652 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1653 1654 Tokens = annotate("Foo::Foo() {}"); 1655 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1656 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_FunctionDeclarationName); 1657 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_FunctionLBrace); 1658 1659 Tokens = annotate("Foo::~Foo() {}"); 1660 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1661 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_FunctionDeclarationName); 1662 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_FunctionLBrace); 1663 1664 Tokens = annotate("#define FOO Foo::\n" 1665 "FOO Foo();"); 1666 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1667 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_FunctionDeclarationName); 1668 1669 Tokens = annotate("struct Foo {\n" 1670 " Bar (*func)();\n" 1671 "};"); 1672 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1673 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_Unknown); 1674 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_FunctionTypeLParen); 1675 } 1676 1677 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1678 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1679 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1680 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1681 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1682 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1683 } 1684 1685 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1686 auto Tokens = annotate("auto f() -> int;"); 1687 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1688 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1689 1690 Tokens = annotate("auto operator->() -> int;"); 1691 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1692 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1693 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1694 1695 Tokens = annotate("auto operator++(int) -> int;"); 1696 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1697 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1698 1699 Tokens = annotate("auto operator=() -> int;"); 1700 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1701 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1702 1703 Tokens = annotate("auto operator=(int) -> int;"); 1704 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1705 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1706 1707 Tokens = annotate("auto foo() -> auto { return Val; }"); 1708 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1709 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1710 1711 Tokens = annotate("struct S { auto bar() const -> int; };"); 1712 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1713 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1714 1715 // Not trailing return arrows 1716 Tokens = annotate("auto a = b->c;"); 1717 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1718 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1719 1720 Tokens = annotate("auto a = (b)->c;"); 1721 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1722 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1723 1724 Tokens = annotate("auto a = b()->c;"); 1725 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1726 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1727 1728 Tokens = annotate("auto a = b->c();"); 1729 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1730 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1731 1732 Tokens = annotate("decltype(auto) a = b()->c;"); 1733 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1734 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1735 1736 Tokens = annotate("void f() { auto a = b->c(); }"); 1737 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1738 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1739 1740 Tokens = annotate("void f() { auto a = b()->c; }"); 1741 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1742 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1743 1744 // Mixed 1745 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1746 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1747 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1748 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1749 } 1750 1751 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1752 auto Annotate = [this](llvm::StringRef Code) { 1753 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1754 }; 1755 // Test that unary operators get labeled as such and that operators like '++' 1756 // don't get split. 1757 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1758 tok::tilde, tok::amp, tok::pipe, 1759 tok::caret, tok::plusplus, tok::minusminus}; 1760 for (auto Kind : Unary) { 1761 auto Tokens = 1762 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1763 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1764 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1765 } 1766 // Operators formed by joining two operators like '^~'. For some of these 1767 // joined operators, we don't have a separate type, so we only test for their 1768 // precedence. 1769 std::pair<prec::Level, std::string> JoinedBinary[] = { 1770 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1771 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1772 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1773 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1774 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1775 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1776 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1777 {prec::Equality, "=="}, {prec::Equality, "!="}, 1778 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1779 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1780 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1781 }; 1782 for (auto Operator : JoinedBinary) { 1783 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1784 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1785 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1786 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1787 } 1788 // '~^' and '^~' can be unary as well as binary operators. 1789 auto Tokens = Annotate("x = ~^x;"); 1790 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1791 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1792 Tokens = Annotate("x = ^~x;"); 1793 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1794 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1795 // The unary operators '~&' and '~|' can only be unary operators. The current 1796 // implementation treats each of them as separate unary '~' and '&' or '|' 1797 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1798 // there is a test that there is no space in between. And even if a new line 1799 // is inserted between the '~' and '|', the semantic meaning is the same as 1800 // the joined operator, so the CanBreakBefore property doesn't need to be 1801 // false for the second operator. 1802 Tokens = Annotate("x = ~&x;"); 1803 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1804 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1805 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1806 Tokens = Annotate("x = ~|x;"); 1807 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1808 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1809 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1810 // Test for block label colons. 1811 Tokens = Annotate("begin : x\n" 1812 "end : x"); 1813 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1814 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1815 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1816 // Test that the dimension colon is annotated correctly. 1817 Tokens = Annotate("var [1 : 0] x;"); 1818 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1819 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1820 Tokens = Annotate("extern function [1 : 0] x;"); 1821 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1822 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1823 Tokens = Annotate("module test\n" 1824 " (input wire [7 : 0] a[7 : 0]);\n" 1825 "endmodule"); 1826 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1827 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1828 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1829 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1830 // Test case labels and ternary operators. 1831 Tokens = Annotate("case (x)\n" 1832 " x:\n" 1833 " x;\n" 1834 "endcase\n"); 1835 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1836 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1837 Tokens = Annotate("case (x)\n" 1838 " x ? x : x:\n" 1839 " x;\n" 1840 "endcase\n"); 1841 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1842 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1843 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1844 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1845 // Non-blocking assignments. 1846 Tokens = Annotate("a <= b;"); 1847 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1848 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1849 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1850 Tokens = Annotate("if (a <= b) break;"); 1851 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1852 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1853 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1854 Tokens = Annotate("a <= b <= a;"); 1855 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1856 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1857 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1858 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1859 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1860 1861 // Port lists in module instantiation. 1862 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1863 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1864 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1865 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1866 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1867 "instance_2(port_2);"); 1868 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1869 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1870 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1871 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1872 1873 // Condition parentheses. 1874 Tokens = Annotate("assert (x);"); 1875 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1876 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1877 Tokens = Annotate("assert #0 (x);"); 1878 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1879 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1880 Tokens = Annotate("assert final (x);"); 1881 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1882 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1883 Tokens = Annotate("foreach (x[x]) continue;"); 1884 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1885 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1886 Tokens = Annotate("repeat (x[x]) continue;"); 1887 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1888 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1889 Tokens = Annotate("case (x) endcase;"); 1890 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1891 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1892 1893 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1894 // future, please adapt if those tokens get annotated. This test is only here 1895 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1896 Tokens = Annotate("always @(posedge x, posedge y);"); 1897 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1898 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1899 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1900 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1901 1902 // String literals in concatenation. 1903 Tokens = Annotate("x = {\"\"};"); 1904 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1905 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1906 Tokens = Annotate("x = {\"\", \"\"};"); 1907 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1908 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1909 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1910 Tokens = Annotate("x = '{{\"\"}};"); 1911 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1912 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1913 // Cases where the string should not be annotated that type. Fix the 1914 // `TT_Unknown` if needed in the future. 1915 Tokens = Annotate("x = {\"\" == \"\"};"); 1916 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1917 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_Unknown); 1918 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_Unknown); 1919 Tokens = Annotate("x = {(\"\")};"); 1920 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1921 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1922 Tokens = Annotate("x = '{\"\"};"); 1923 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1924 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1925 } 1926 1927 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1928 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1929 1930 // The TT_Unknown is clearly not binding for the future, please adapt if those 1931 // tokens get annotated. 1932 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1933 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1934 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1935 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1936 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1937 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1938 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1939 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1940 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1941 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1942 1943 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1944 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1945 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1946 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1947 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1948 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1949 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1950 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1951 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1952 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1953 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1954 } 1955 1956 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 1957 auto Tokens = annotate("if (x) {}"); 1958 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1959 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1960 Tokens = annotate("if constexpr (x) {}"); 1961 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1962 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1963 Tokens = annotate("if CONSTEXPR (x) {}"); 1964 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1965 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1966 Tokens = annotate("if (x) {} else if (x) {}"); 1967 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1968 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1969 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 1970 } 1971 1972 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 1973 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 1974 1975 auto Tokens = annotate("int? a;", Style); 1976 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 1977 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1978 1979 Tokens = annotate("int? a = 1;", Style); 1980 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 1981 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1982 1983 Tokens = annotate("int?)", Style); 1984 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1985 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1986 1987 Tokens = annotate("int?>", Style); 1988 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 1989 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 1990 1991 Tokens = annotate("cond? id : id2", Style); 1992 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 1993 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1994 1995 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 1996 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 1997 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 1998 } 1999 2000 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 2001 auto Tokens = annotate("{ x: break; }"); 2002 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 2003 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 2004 Tokens = annotate("{ case x: break; }"); 2005 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2006 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 2007 Tokens = annotate("{ x: { break; } }"); 2008 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 2009 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 2010 Tokens = annotate("{ case x: { break; } }"); 2011 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2012 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 2013 } 2014 2015 TEST_F(TokenAnnotatorTest, UnderstandsNestedBlocks) { 2016 // The closing braces are not annotated. It doesn't seem to cause a problem. 2017 // So we only test for the opening braces. 2018 auto Tokens = annotate("{\n" 2019 " {\n" 2020 " { int a = 0; }\n" 2021 " }\n" 2022 " {}\n" 2023 "}"); 2024 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2025 EXPECT_BRACE_KIND(Tokens[0], BK_Block); 2026 EXPECT_BRACE_KIND(Tokens[1], BK_Block); 2027 EXPECT_BRACE_KIND(Tokens[2], BK_Block); 2028 EXPECT_BRACE_KIND(Tokens[10], BK_Block); 2029 } 2030 2031 TEST_F(TokenAnnotatorTest, UnderstandDesignatedInitializers) { 2032 auto Tokens = annotate("SomeStruct { .a = 1 };"); 2033 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 2034 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2035 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2036 2037 Tokens = annotate("SomeStruct { .a = 1, .b = 2 };"); 2038 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2039 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2040 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2041 EXPECT_TOKEN(Tokens[7], tok::period, TT_DesignatedInitializerPeriod); 2042 2043 Tokens = annotate("SomeStruct {\n" 2044 "#ifdef FOO\n" 2045 " .a = 1,\n" 2046 "#endif\n" 2047 " .b = 2\n" 2048 "};"); 2049 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 2050 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2051 EXPECT_TOKEN(Tokens[5], tok::period, TT_DesignatedInitializerPeriod); 2052 EXPECT_TOKEN(Tokens[12], tok::period, TT_DesignatedInitializerPeriod); 2053 2054 Tokens = annotate("SomeStruct {\n" 2055 "#if defined FOO\n" 2056 " .a = 1,\n" 2057 "#endif\n" 2058 " .b = 2\n" 2059 "};"); 2060 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 2061 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2062 EXPECT_TOKEN(Tokens[6], tok::period, TT_DesignatedInitializerPeriod); 2063 EXPECT_TOKEN(Tokens[13], tok::period, TT_DesignatedInitializerPeriod); 2064 } 2065 2066 TEST_F(TokenAnnotatorTest, UnderstandsJavaScript) { 2067 auto Annotate = [this](llvm::StringRef Code) { 2068 return annotate(Code, getLLVMStyle(FormatStyle::LK_JavaScript)); 2069 }; 2070 2071 // Dictionary. 2072 auto Tokens = Annotate("var x = {'x' : 1, 'y' : 2};"); 2073 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2074 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_DictLiteral); 2075 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_SelectorName); 2076 EXPECT_TOKEN(Tokens[5], tok::colon, TT_DictLiteral); 2077 EXPECT_TOKEN(Tokens[8], tok::string_literal, TT_SelectorName); 2078 EXPECT_TOKEN(Tokens[9], tok::colon, TT_DictLiteral); 2079 // Change when we need to annotate these. 2080 EXPECT_BRACE_KIND(Tokens[3], BK_Unknown); 2081 EXPECT_BRACE_KIND(Tokens[11], BK_Unknown); 2082 EXPECT_TOKEN(Tokens[11], tok::r_brace, TT_Unknown); 2083 } 2084 2085 TEST_F(TokenAnnotatorTest, UnderstandsAttributes) { 2086 auto Tokens = annotate("bool foo __attribute__((unused));"); 2087 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2088 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_AttributeLParen); 2089 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_Unknown); 2090 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_Unknown); 2091 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_AttributeRParen); 2092 } 2093 2094 } // namespace 2095 } // namespace format 2096 } // namespace clang 2097