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