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 EXPECT_TOKEN(Tokens[3], tok::r_brace, TT_ClassRBrace); 397 398 Tokens = annotate("const class C {} c;"); 399 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 400 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_ClassLBrace); 401 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_ClassRBrace); 402 403 Tokens = annotate("const class {} c;"); 404 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 405 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_ClassLBrace); 406 EXPECT_TOKEN(Tokens[3], tok::r_brace, TT_ClassRBrace); 407 408 Tokens = annotate("class [[deprecated(\"\")]] C { int i; };"); 409 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 410 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_ClassLBrace); 411 EXPECT_TOKEN(Tokens[14], tok::r_brace, TT_ClassRBrace); 412 } 413 414 TEST_F(TokenAnnotatorTest, UnderstandsStructs) { 415 auto Tokens = annotate("struct S {};"); 416 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 417 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_StructLBrace); 418 EXPECT_TOKEN(Tokens[3], tok::r_brace, TT_StructRBrace); 419 420 Tokens = annotate("struct EXPORT_MACRO [[nodiscard]] C { int i; };"); 421 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 422 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_StructLBrace); 423 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_StructRBrace); 424 425 Tokens = annotate("struct [[deprecated]] [[nodiscard]] C { int i; };"); 426 EXPECT_EQ(Tokens.size(), 19u) << Tokens; 427 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_StructLBrace); 428 EXPECT_TOKEN(Tokens[16], tok::r_brace, TT_StructRBrace); 429 430 Tokens = annotate("template <typename T> struct S<const T[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 EXPECT_TOKEN(Tokens[15], tok::r_brace, TT_StructRBrace); 437 438 Tokens = annotate("template <typename T> struct S<T const[N]> {};"); 439 EXPECT_EQ(Tokens.size(), 18u) << Tokens; 440 EXPECT_TOKEN(Tokens[7], tok::less, TT_TemplateOpener); 441 EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); 442 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 443 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_StructLBrace); 444 EXPECT_TOKEN(Tokens[15], tok::r_brace, TT_StructRBrace); 445 446 Tokens = annotate("template <typename T, unsigned n> struct S<T const[n]> {\n" 447 " void f(T const (&a)[n]);\n" 448 "};"); 449 EXPECT_EQ(Tokens.size(), 35u) << Tokens; 450 EXPECT_TOKEN(Tokens[10], tok::less, TT_TemplateOpener); 451 EXPECT_TOKEN(Tokens[13], tok::l_square, TT_ArraySubscriptLSquare); 452 EXPECT_TOKEN(Tokens[16], tok::greater, TT_TemplateCloser); 453 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_StructLBrace); 454 EXPECT_TOKEN(Tokens[23], tok::l_paren, TT_FunctionTypeLParen); 455 EXPECT_TOKEN(Tokens[24], tok::amp, TT_UnaryOperator); 456 EXPECT_TOKEN(Tokens[27], tok::l_square, TT_ArraySubscriptLSquare); 457 EXPECT_TOKEN(Tokens[32], tok::r_brace, TT_StructRBrace); 458 } 459 460 TEST_F(TokenAnnotatorTest, UnderstandsUnions) { 461 auto Tokens = annotate("union U {};"); 462 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 463 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 464 EXPECT_TOKEN(Tokens[3], tok::r_brace, TT_UnionRBrace); 465 466 Tokens = annotate("union U { void f() { return; } };"); 467 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 468 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_UnionLBrace); 469 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_FunctionLBrace); 470 EXPECT_TOKEN(Tokens[11], tok::r_brace, TT_UnionRBrace); 471 } 472 473 TEST_F(TokenAnnotatorTest, UnderstandsEnums) { 474 auto Tokens = annotate("enum E {};"); 475 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 476 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_EnumLBrace); 477 } 478 479 TEST_F(TokenAnnotatorTest, UnderstandsDefaultedAndDeletedFunctions) { 480 auto Tokens = annotate("auto operator<=>(const T &) const & = default;"); 481 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 482 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 483 484 Tokens = annotate("template <typename T> void F(T) && = delete;"); 485 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 486 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 487 } 488 489 TEST_F(TokenAnnotatorTest, UnderstandsVariables) { 490 auto Tokens = 491 annotate("inline bool var = is_integral_v<int> && is_signed_v<int>;"); 492 EXPECT_EQ(Tokens.size(), 15u) << Tokens; 493 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_BinaryOperator); 494 } 495 496 TEST_F(TokenAnnotatorTest, UnderstandsVariableTemplates) { 497 auto Tokens = 498 annotate("template <typename T> " 499 "inline bool var = is_integral_v<int> && is_signed_v<int>;"); 500 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 501 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 502 } 503 504 TEST_F(TokenAnnotatorTest, UnderstandsTemplatesInMacros) { 505 auto Tokens = 506 annotate("#define FOO(typeName) \\\n" 507 " { #typeName, foo<FooType>(new foo<realClass>(#typeName)) }"); 508 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 509 EXPECT_TOKEN(Tokens[11], tok::less, TT_TemplateOpener); 510 EXPECT_TOKEN(Tokens[13], tok::greater, TT_TemplateCloser); 511 EXPECT_TOKEN(Tokens[17], tok::less, TT_TemplateOpener); 512 EXPECT_TOKEN(Tokens[19], tok::greater, TT_TemplateCloser); 513 } 514 515 TEST_F(TokenAnnotatorTest, UnderstandsGreaterAfterTemplateCloser) { 516 auto Tokens = annotate("if (std::tuple_size_v<T> > 0)"); 517 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 518 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 519 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 520 EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator); 521 } 522 523 TEST_F(TokenAnnotatorTest, UnderstandsNonTemplateAngleBrackets) { 524 auto Tokens = annotate("return a < b && c > d;"); 525 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 526 EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator); 527 EXPECT_TOKEN(Tokens[6], tok::greater, TT_BinaryOperator); 528 529 Tokens = annotate("a < 0 ? b : a > 0 ? c : d;"); 530 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 531 EXPECT_TOKEN(Tokens[1], tok::less, TT_BinaryOperator); 532 EXPECT_TOKEN(Tokens[7], tok::greater, TT_BinaryOperator); 533 534 Tokens = annotate("ratio{-1, 2} < ratio{-1, 3} == -1 / 3 > -1 / 2;"); 535 ASSERT_EQ(Tokens.size(), 27u) << Tokens; 536 EXPECT_TOKEN(Tokens[7], tok::less, TT_BinaryOperator); 537 EXPECT_TOKEN(Tokens[20], tok::greater, TT_BinaryOperator); 538 } 539 540 TEST_F(TokenAnnotatorTest, UnderstandsWhitespaceSensitiveMacros) { 541 FormatStyle Style = getLLVMStyle(); 542 Style.WhitespaceSensitiveMacros.push_back("FOO"); 543 544 auto Tokens = annotate("FOO(1+2 )\n", Style); 545 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 546 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 547 548 Tokens = annotate("FOO(a:b:c)\n", Style); 549 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 550 EXPECT_TOKEN(Tokens[0], tok::identifier, TT_UntouchableMacroFunc); 551 } 552 553 TEST_F(TokenAnnotatorTest, UnderstandsDelete) { 554 auto Tokens = annotate("delete (void *)p;"); 555 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 556 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_CastRParen); 557 558 Tokens = annotate("delete[] (void *)p;"); 559 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 560 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_CastRParen); 561 562 Tokens = annotate("delete[] /*comment*/ (void *)p;"); 563 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 564 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 565 566 Tokens = annotate("delete[/*comment*/] (void *)p;"); 567 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 568 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 569 570 Tokens = annotate("delete/*comment*/[] (void *)p;"); 571 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 572 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 573 } 574 575 TEST_F(TokenAnnotatorTest, UnderstandsCasts) { 576 auto Tokens = annotate("(void)p;"); 577 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 578 EXPECT_TOKEN(Tokens[2], tok::r_paren, TT_CastRParen); 579 580 Tokens = annotate("auto x = (Foo)p;"); 581 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 582 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_CastRParen); 583 584 Tokens = annotate("(std::vector<int>)p;"); 585 EXPECT_EQ(Tokens.size(), 11u) << Tokens; 586 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_CastRParen); 587 588 Tokens = annotate("return (Foo)p;"); 589 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 590 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 591 592 Tokens = annotate("throw (Foo)p;"); 593 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 594 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_CastRParen); 595 596 Tokens = annotate("#define FOO(x) (((uint64_t)(x) * BAR) / 100)"); 597 EXPECT_EQ(Tokens.size(), 21u) << Tokens; 598 EXPECT_TOKEN(Tokens[10], tok::r_paren, TT_CastRParen); 599 EXPECT_TOKEN(Tokens[13], tok::r_paren, TT_Unknown); 600 EXPECT_TOKEN(Tokens[14], tok::star, TT_BinaryOperator); 601 602 Tokens = annotate("return (Foo) & 10;"); 603 EXPECT_EQ(Tokens.size(), 8u) << Tokens; 604 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_Unknown); 605 EXPECT_TOKEN(Tokens[4], tok::amp, TT_BinaryOperator); 606 } 607 608 TEST_F(TokenAnnotatorTest, UnderstandsDynamicExceptionSpecifier) { 609 auto Tokens = annotate("void f() throw(int);"); 610 EXPECT_EQ(Tokens.size(), 10u) << Tokens; 611 EXPECT_TOKEN(Tokens[4], tok::kw_throw, TT_Unknown); 612 } 613 614 TEST_F(TokenAnnotatorTest, UnderstandsFunctionRefQualifiers) { 615 auto Tokens = annotate("void f() &;"); 616 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 617 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 618 619 Tokens = annotate("void operator=(T) &&;"); 620 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 621 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 622 623 Tokens = annotate("template <typename T> void f() &;"); 624 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 625 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 626 627 Tokens = annotate("template <typename T> void operator=(T) &;"); 628 EXPECT_EQ(Tokens.size(), 14u) << Tokens; 629 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 630 } 631 632 TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) { 633 auto Tokens = annotate("x.operator+()"); 634 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 635 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 636 EXPECT_TOKEN(Tokens[3], tok::plus, TT_OverloadedOperator); 637 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 638 Tokens = annotate("x.operator=()"); 639 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 640 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 641 EXPECT_TOKEN(Tokens[3], tok::equal, TT_OverloadedOperator); 642 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 643 Tokens = annotate("x.operator+=()"); 644 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 645 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 646 EXPECT_TOKEN(Tokens[3], tok::plusequal, TT_OverloadedOperator); 647 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 648 Tokens = annotate("x.operator,()"); 649 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 650 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 651 EXPECT_TOKEN(Tokens[3], tok::comma, TT_OverloadedOperator); 652 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 653 Tokens = annotate("x.operator()()"); 654 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 655 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 656 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperator); 657 EXPECT_TOKEN(Tokens[4], tok::r_paren, TT_OverloadedOperator); 658 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 659 Tokens = annotate("x.operator[]()"); 660 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 661 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 662 // EXPECT_TOKEN(Tokens[3], tok::l_square, TT_OverloadedOperator); 663 // EXPECT_TOKEN(Tokens[4], tok::r_square, TT_OverloadedOperator); 664 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 665 Tokens = annotate("x.operator\"\"_a()"); 666 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 667 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 668 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 669 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 670 Tokens = annotate("x.operator\"\" _a()"); 671 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 672 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 673 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 674 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 675 Tokens = annotate("x.operator\"\"if()"); 676 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 677 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 678 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 679 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 680 Tokens = annotate("x.operator\"\"s()"); 681 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 682 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 683 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 684 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 685 Tokens = annotate("x.operator\"\" s()"); 686 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 687 EXPECT_TOKEN(Tokens[2], tok::kw_operator, TT_Unknown); 688 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_OverloadedOperator); 689 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperatorLParen); 690 691 Tokens = annotate("int operator+(int);"); 692 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 693 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 694 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 695 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 696 Tokens = annotate("auto operator=(T&) {}"); 697 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 698 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 699 EXPECT_TOKEN(Tokens[2], tok::equal, TT_OverloadedOperator); 700 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 701 Tokens = annotate("auto operator()() {}"); 702 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 703 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_FunctionDeclarationName); 704 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_OverloadedOperator); 705 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_OverloadedOperator); 706 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_OverloadedOperatorLParen); 707 708 Tokens = annotate("class Foo {\n" 709 " int operator+(a* b);\n" 710 "}"); 711 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 712 EXPECT_TOKEN(Tokens[4], tok::kw_operator, TT_FunctionDeclarationName); 713 EXPECT_TOKEN(Tokens[5], tok::plus, TT_OverloadedOperator); 714 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_OverloadedOperatorLParen); 715 EXPECT_TOKEN(Tokens[8], tok::star, TT_PointerOrReference); 716 717 Tokens = annotate("class Foo {\n" 718 " int c = operator+(a * b);\n" 719 "}"); 720 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 721 EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_Unknown); 722 EXPECT_TOKEN(Tokens[7], tok::plus, TT_OverloadedOperator); 723 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_OverloadedOperatorLParen); 724 EXPECT_TOKEN(Tokens[10], tok::star, TT_BinaryOperator); 725 726 Tokens = annotate("void foo() {\n" 727 " operator+(a * b);\n" 728 "}"); 729 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 730 EXPECT_TOKEN(Tokens[5], tok::kw_operator, TT_Unknown); 731 EXPECT_TOKEN(Tokens[6], tok::plus, TT_OverloadedOperator); 732 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperatorLParen); 733 EXPECT_TOKEN(Tokens[9], tok::star, TT_BinaryOperator); 734 735 Tokens = annotate("return operator+(a * b, c & d) + operator+(a && b && c);"); 736 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 737 EXPECT_TOKEN(Tokens[1], tok::kw_operator, TT_Unknown); 738 EXPECT_TOKEN(Tokens[2], tok::plus, TT_OverloadedOperator); 739 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_OverloadedOperatorLParen); 740 EXPECT_TOKEN(Tokens[5], tok::star, TT_BinaryOperator); 741 EXPECT_TOKEN(Tokens[9], tok::amp, TT_BinaryOperator); 742 EXPECT_TOKEN(Tokens[13], tok::kw_operator, TT_Unknown); 743 EXPECT_TOKEN(Tokens[14], tok::plus, TT_OverloadedOperator); 744 EXPECT_TOKEN(Tokens[15], tok::l_paren, TT_OverloadedOperatorLParen); 745 EXPECT_TOKEN(Tokens[17], tok::ampamp, TT_BinaryOperator); 746 EXPECT_TOKEN(Tokens[19], tok::ampamp, TT_BinaryOperator); 747 748 Tokens = annotate("class Foo {\n" 749 " void foo() {\n" 750 " operator+(a * b);\n" 751 " }\n" 752 "}"); 753 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 754 EXPECT_TOKEN(Tokens[8], tok::kw_operator, TT_Unknown); 755 EXPECT_TOKEN(Tokens[9], tok::plus, TT_OverloadedOperator); 756 EXPECT_TOKEN(Tokens[10], tok::l_paren, TT_OverloadedOperatorLParen); 757 EXPECT_TOKEN(Tokens[12], tok::star, TT_BinaryOperator); 758 759 Tokens = annotate("std::vector<Foo> operator()(Foo &foo);"); 760 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 761 EXPECT_TOKEN(Tokens[3], tok::less, TT_TemplateOpener); 762 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 763 EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_FunctionDeclarationName); 764 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperator); 765 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_OverloadedOperator); 766 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_OverloadedOperatorLParen); 767 EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference); 768 769 Tokens = annotate("decltype(auto) operator()(T &x);"); 770 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 771 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_TypeDeclarationParen); 772 EXPECT_TOKEN(Tokens[3], tok::r_paren, TT_TypeDeclarationParen); 773 EXPECT_TOKEN(Tokens[4], tok::kw_operator, TT_FunctionDeclarationName); 774 EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_OverloadedOperator); 775 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_OverloadedOperator); 776 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperatorLParen); 777 EXPECT_TOKEN(Tokens[9], tok::amp, TT_PointerOrReference); 778 } 779 780 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) { 781 struct { 782 const char *Text; 783 tok::TokenKind Kind; 784 } Operators[] = {{"+", tok::plus}, 785 {"-", tok::minus}, 786 // FIXME: 787 // {"*", tok::star}, 788 {"/", tok::slash}, 789 {"%", tok::percent}, 790 {"^", tok::caret}, 791 // FIXME: 792 // {"&", tok::amp}, 793 {"|", tok::pipe}, 794 {"~", tok::tilde}, 795 {"!", tok::exclaim}, 796 {"=", tok::equal}, 797 // FIXME: 798 // {"<", tok::less}, 799 {">", tok::greater}, 800 {"+=", tok::plusequal}, 801 {"-=", tok::minusequal}, 802 {"*=", tok::starequal}, 803 {"/=", tok::slashequal}, 804 {"%=", tok::percentequal}, 805 {"^=", tok::caretequal}, 806 {"&=", tok::ampequal}, 807 {"|=", tok::pipeequal}, 808 {"<<", tok::lessless}, 809 {">>", tok::greatergreater}, 810 {">>=", tok::greatergreaterequal}, 811 {"<<=", tok::lesslessequal}, 812 {"==", tok::equalequal}, 813 {"!=", tok::exclaimequal}, 814 {"<=", tok::lessequal}, 815 {">=", tok::greaterequal}, 816 {"<=>", tok::spaceship}, 817 {"&&", tok::ampamp}, 818 {"||", tok::pipepipe}, 819 {"++", tok::plusplus}, 820 {"--", tok::minusminus}, 821 {",", tok::comma}, 822 {"->*", tok::arrowstar}, 823 {"->", tok::arrow}}; 824 825 for (const auto &Operator : Operators) { 826 std::string Input("C<&operator"); 827 Input += Operator.Text; 828 Input += " > a;"; 829 auto Tokens = annotate(std::string(Input)); 830 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 831 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 832 EXPECT_TOKEN(Tokens[4], Operator.Kind, TT_OverloadedOperator); 833 EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser); 834 } 835 836 auto Tokens = annotate("C<&operator< <X>> lt;"); 837 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 838 EXPECT_TOKEN(Tokens[1], tok::less, TT_TemplateOpener); 839 EXPECT_TOKEN(Tokens[4], tok::less, TT_OverloadedOperator); 840 EXPECT_TOKEN(Tokens[5], tok::less, TT_TemplateOpener); 841 EXPECT_TOKEN(Tokens[7], tok::greater, TT_TemplateCloser); 842 EXPECT_TOKEN(Tokens[8], tok::greater, TT_TemplateCloser); 843 } 844 845 TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) { 846 auto Tokens = annotate("template <typename T>\n" 847 "concept C = (Foo && Bar) && (Bar && Baz);"); 848 849 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 850 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 851 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 852 EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator); 853 854 Tokens = annotate("template <typename T>\n" 855 "concept C = Foo && !Bar;"); 856 857 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 858 EXPECT_TOKEN(Tokens[9], tok::ampamp, TT_BinaryOperator); 859 EXPECT_TOKEN(Tokens[10], tok::exclaim, TT_UnaryOperator); 860 861 Tokens = annotate("template <typename T>\n" 862 "concept C = requires(T t) {\n" 863 " { t.foo() };\n" 864 "} && Bar<T> && Baz<T>;"); 865 ASSERT_EQ(Tokens.size(), 35u) << Tokens; 866 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 867 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 868 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 869 EXPECT_TOKEN(Tokens[23], tok::ampamp, TT_BinaryOperator); 870 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 871 872 Tokens = annotate("template<typename T>\n" 873 "requires C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>\n" 874 "struct Foo;"); 875 ASSERT_EQ(Tokens.size(), 36u) << Tokens; 876 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 877 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 878 EXPECT_EQ(Tokens[6]->FakeLParens.size(), 1u); 879 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_BinaryOperator); 880 EXPECT_TOKEN(Tokens[16], tok::pipepipe, TT_BinaryOperator); 881 EXPECT_TOKEN(Tokens[21], tok::ampamp, TT_BinaryOperator); 882 EXPECT_TOKEN(Tokens[27], tok::ampamp, TT_BinaryOperator); 883 EXPECT_TOKEN(Tokens[31], tok::greater, TT_TemplateCloser); 884 EXPECT_EQ(Tokens[31]->FakeRParens, 1u); 885 EXPECT_TRUE(Tokens[31]->ClosesRequiresClause); 886 887 Tokens = 888 annotate("template<typename T>\n" 889 "requires (C1<T> && (C21<T> || C22<T> && C2e<T>) && C3<T>)\n" 890 "struct Foo;"); 891 ASSERT_EQ(Tokens.size(), 38u) << Tokens; 892 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 893 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_Unknown); 894 EXPECT_EQ(Tokens[7]->FakeLParens.size(), 1u); 895 EXPECT_TOKEN(Tokens[11], tok::ampamp, TT_BinaryOperator); 896 EXPECT_TOKEN(Tokens[17], tok::pipepipe, TT_BinaryOperator); 897 EXPECT_TOKEN(Tokens[22], tok::ampamp, TT_BinaryOperator); 898 EXPECT_TOKEN(Tokens[28], tok::ampamp, TT_BinaryOperator); 899 EXPECT_TOKEN(Tokens[32], tok::greater, TT_TemplateCloser); 900 EXPECT_EQ(Tokens[32]->FakeRParens, 1u); 901 EXPECT_TOKEN(Tokens[33], tok::r_paren, TT_Unknown); 902 EXPECT_TRUE(Tokens[33]->ClosesRequiresClause); 903 904 Tokens = annotate("template <typename T>\n" 905 "void foo(T) noexcept requires Bar<T>;"); 906 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 907 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 908 909 Tokens = annotate("template <typename T>\n" 910 "requires Bar<T> || Baz<T>\n" 911 "auto foo(T) -> int;"); 912 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 913 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 914 EXPECT_EQ(Tokens[11]->FakeLParens.size(), 0u); 915 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 916 EXPECT_TOKEN(Tokens[20], tok::arrow, TT_TrailingReturnArrow); 917 918 Tokens = annotate("template <typename T>\n" 919 "requires Bar<T>\n" 920 "bool foo(T) { return false; }"); 921 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 922 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 923 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 924 EXPECT_TOKEN(Tokens[11], tok::identifier, TT_FunctionDeclarationName); 925 926 Tokens = annotate("template <typename T>\n" 927 "requires Bar<T>\n" 928 "decltype(auto) foo(T) { return false; }"); 929 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 930 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 931 EXPECT_TRUE(Tokens[9]->ClosesRequiresClause); 932 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_FunctionDeclarationName); 933 934 Tokens = annotate("template <typename T>\n" 935 "struct S {\n" 936 " void foo() const requires Bar<T>;\n" 937 " void bar() const & requires Baz<T>;\n" 938 " void bar() && requires Baz2<T>;\n" 939 " void baz() const & noexcept requires Baz<T>;\n" 940 " void baz() && noexcept requires Baz2<T>;\n" 941 "};\n" 942 "\n" 943 "void S::bar() const & requires Baz<T> { }"); 944 ASSERT_EQ(Tokens.size(), 85u) << Tokens; 945 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 946 EXPECT_TOKEN(Tokens[24], tok::amp, TT_PointerOrReference); 947 EXPECT_TOKEN(Tokens[25], tok::kw_requires, TT_RequiresClause); 948 EXPECT_TOKEN(Tokens[35], tok::ampamp, TT_PointerOrReference); 949 EXPECT_TOKEN(Tokens[36], tok::kw_requires, TT_RequiresClause); 950 EXPECT_TOKEN(Tokens[47], tok::amp, TT_PointerOrReference); 951 EXPECT_TOKEN(Tokens[49], tok::kw_requires, TT_RequiresClause); 952 EXPECT_TOKEN(Tokens[59], tok::ampamp, TT_PointerOrReference); 953 EXPECT_TOKEN(Tokens[61], tok::kw_requires, TT_RequiresClause); 954 EXPECT_TOKEN(Tokens[76], tok::amp, TT_PointerOrReference); 955 EXPECT_TOKEN(Tokens[77], tok::kw_requires, TT_RequiresClause); 956 957 Tokens = annotate("void Class::member() && requires(Constant) {}"); 958 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 959 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 960 961 Tokens = annotate("void Class::member() && requires(Constant<T>) {}"); 962 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 963 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 964 965 Tokens = 966 annotate("void Class::member() && requires(Namespace::Constant<T>) {}"); 967 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 968 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 969 970 Tokens = annotate("void Class::member() && requires(typename " 971 "Namespace::Outer<T>::Inner::Constant) {}"); 972 ASSERT_EQ(Tokens.size(), 24u) << Tokens; 973 EXPECT_TOKEN(Tokens[7], tok::kw_requires, TT_RequiresClause); 974 975 Tokens = annotate("struct [[nodiscard]] zero_t {\n" 976 " template<class T>\n" 977 " requires requires { number_zero_v<T>; }\n" 978 " [[nodiscard]] constexpr operator T() const { " 979 "return number_zero_v<T>; }\n" 980 "};"); 981 ASSERT_EQ(Tokens.size(), 44u) << Tokens; 982 EXPECT_TOKEN(Tokens[13], tok::kw_requires, TT_RequiresClause); 983 EXPECT_TOKEN(Tokens[14], tok::kw_requires, TT_RequiresExpression); 984 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_RequiresExpressionLBrace); 985 EXPECT_TOKEN(Tokens[21], tok::r_brace, TT_Unknown); 986 EXPECT_EQ(Tokens[21]->MatchingParen, Tokens[15]); 987 EXPECT_TRUE(Tokens[21]->ClosesRequiresClause); 988 989 Tokens = 990 annotate("template <class A, class B> concept C =" 991 "std::same_as<std::iter_value_t<A>, std::iter_value_t<B>>;"); 992 ASSERT_EQ(Tokens.size(), 31u) << Tokens; 993 EXPECT_TOKEN(Tokens[8], tok::kw_concept, TT_Unknown); 994 EXPECT_TOKEN(Tokens[14], tok::less, TT_TemplateOpener); 995 EXPECT_TOKEN(Tokens[18], tok::less, TT_TemplateOpener); 996 EXPECT_TOKEN(Tokens[20], tok::greater, TT_TemplateCloser); 997 EXPECT_TOKEN(Tokens[25], tok::less, TT_TemplateOpener); 998 EXPECT_TOKEN(Tokens[27], tok::greater, TT_TemplateCloser); 999 EXPECT_TOKEN(Tokens[28], tok::greater, TT_TemplateCloser); 1000 1001 Tokens = annotate("auto bar() -> int requires(is_integral_v<T>) {}"); 1002 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1003 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1004 1005 Tokens = annotate("auto bar() -> void requires(is_integral_v<T>) {}"); 1006 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1007 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1008 1009 Tokens = annotate("auto bar() -> MyType requires(is_integral_v<T>) {}"); 1010 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1011 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1012 1013 Tokens = 1014 annotate("auto bar() -> SOME_MACRO_TYPE requires(is_integral_v<T>) {}"); 1015 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1016 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1017 1018 Tokens = 1019 annotate("auto bar() -> qualified::type requires(is_integral_v<T>) {}"); 1020 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1021 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresClause); 1022 1023 Tokens = 1024 annotate("auto bar() -> Template<type> requires(is_integral_v<T>) {}"); 1025 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1026 EXPECT_TOKEN(Tokens[9], tok::kw_requires, TT_RequiresClause); 1027 1028 Tokens = annotate("void foo() requires((A<T>) && C) {}"); 1029 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1030 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1031 EXPECT_TOKEN(Tokens[12], tok::ampamp, TT_BinaryOperator); 1032 1033 Tokens = annotate("void foo() requires(((A<T>) && C)) {}"); 1034 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1035 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1036 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_BinaryOperator); 1037 1038 Tokens = annotate("void foo() requires([](T&&){}(t)) {}"); 1039 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1040 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1041 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1042 1043 Tokens = annotate("void foo() requires([](T&& u){}(t)) {}"); 1044 ASSERT_EQ(Tokens.size(), 22u) << Tokens; 1045 EXPECT_TOKEN(Tokens[4], tok::kw_requires, TT_RequiresClause); 1046 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1047 1048 Tokens = annotate("void f() & requires(true) {}"); 1049 EXPECT_EQ(Tokens.size(), 12u) << Tokens; 1050 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 1051 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 1052 1053 Tokens = annotate("void f() & requires(C<true, true>) {}"); 1054 EXPECT_EQ(Tokens.size(), 17u) << Tokens; 1055 EXPECT_TOKEN(Tokens[4], tok::amp, TT_PointerOrReference); 1056 EXPECT_TOKEN(Tokens[5], tok::kw_requires, TT_RequiresClause); 1057 } 1058 1059 TEST_F(TokenAnnotatorTest, UnderstandsRequiresExpressions) { 1060 auto Tokens = annotate("bool b = requires(int i) { i + 5; };"); 1061 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1062 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1063 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1064 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1065 1066 Tokens = annotate("if (requires(int i) { i + 5; }) return;"); 1067 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1068 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1069 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1070 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_RequiresExpressionLBrace); 1071 1072 Tokens = annotate("if (func() && requires(int i) { i + 5; }) return;"); 1073 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1074 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresExpression); 1075 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_RequiresExpressionLParen); 1076 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_RequiresExpressionLBrace); 1077 1078 Tokens = annotate("foo(requires(const T t) {});"); 1079 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1080 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1081 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1082 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1083 1084 Tokens = annotate("foo(requires(const int t) {});"); 1085 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1086 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1087 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1088 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1089 1090 Tokens = annotate("foo(requires(const T t) {});"); 1091 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1092 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1093 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1094 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1095 1096 Tokens = annotate("foo(requires(int const* volatile t) {});"); 1097 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1098 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1099 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1100 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1101 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1102 1103 Tokens = annotate("foo(requires(T const* volatile t) {});"); 1104 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1105 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1106 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1107 EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference); 1108 EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace); 1109 1110 Tokens = annotate("foo(requires(T& t) {});"); 1111 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1112 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1113 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1114 EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference); 1115 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1116 1117 Tokens = annotate("foo(requires(T&& t) {});"); 1118 ASSERT_EQ(Tokens.size(), 13u) << 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[5], tok::ampamp, TT_PointerOrReference); 1122 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace); 1123 1124 Tokens = annotate("bool foo = requires(T& t) {};"); 1125 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1126 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1127 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1128 EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference); 1129 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1130 1131 Tokens = annotate("bool foo = requires(T&& t) {};"); 1132 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1133 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1134 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1135 EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference); 1136 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace); 1137 1138 Tokens = 1139 annotate("foo(requires(const typename Outer<T>::Inner * const t) {});"); 1140 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1141 EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression); 1142 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen); 1143 EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference); 1144 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace); 1145 1146 Tokens = annotate("template <typename T>\n" 1147 "concept C = requires(T T) {\n" 1148 " requires Bar<T> && Foo<T>;\n" 1149 "};"); 1150 ASSERT_EQ(Tokens.size(), 28u) << Tokens; 1151 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1152 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1153 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1154 EXPECT_TOKEN(Tokens[14], tok::kw_requires, 1155 TT_RequiresClauseInARequiresExpression); 1156 1157 Tokens = annotate("template <typename T>\n" 1158 "concept C = requires(T T) {\n" 1159 " { t.func() } -> std::same_as<int>;" 1160 " requires Bar<T> && Foo<T>;\n" 1161 "};"); 1162 ASSERT_EQ(Tokens.size(), 43u) << Tokens; 1163 EXPECT_TOKEN(Tokens[8], tok::kw_requires, TT_RequiresExpression); 1164 EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_RequiresExpressionLParen); 1165 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1166 EXPECT_TOKEN(Tokens[29], tok::kw_requires, 1167 TT_RequiresClauseInARequiresExpression); 1168 1169 // Invalid Code, but we don't want to crash. See http://llvm.org/PR54350. 1170 Tokens = annotate("bool r10 = requires (struct new_struct { int x; } s) { " 1171 "requires true; };"); 1172 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1173 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1174 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1175 EXPECT_TOKEN(Tokens[14], tok::l_brace, TT_RequiresExpressionLBrace); 1176 1177 Tokens = annotate("bool foo = requires(C<true, true> c) {\n" 1178 " { c.foo(); }\n" 1179 "};"); 1180 ASSERT_EQ(Tokens.size(), 25u) << Tokens; 1181 EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression); 1182 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen); 1183 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_RequiresExpressionLBrace); 1184 } 1185 1186 TEST_F(TokenAnnotatorTest, UnderstandsPragmaRegion) { 1187 // Everything after #pragma region should be ImplicitStringLiteral 1188 auto Tokens = annotate("#pragma region Foo(Bar: Hello)"); 1189 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1190 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_ImplicitStringLiteral); 1191 EXPECT_TOKEN(Tokens[6], tok::colon, TT_ImplicitStringLiteral); 1192 EXPECT_TOKEN(Tokens[7], tok::identifier, TT_ImplicitStringLiteral); 1193 1194 // Make sure it's annotated correctly inside a function as well 1195 Tokens = annotate("void test(){\n#pragma region Foo(Bar: Hello)\n}"); 1196 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1197 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_ImplicitStringLiteral); 1198 EXPECT_TOKEN(Tokens[11], tok::colon, TT_ImplicitStringLiteral); 1199 EXPECT_TOKEN(Tokens[12], tok::identifier, TT_ImplicitStringLiteral); 1200 } 1201 1202 TEST_F(TokenAnnotatorTest, RequiresDoesNotChangeParsingOfTheRest) { 1203 const char *BaseCode = nullptr; 1204 const char *ConstrainedCode = nullptr; 1205 auto BaseTokenCount = 0u; 1206 auto RequiresTokenCount = 0u; 1207 auto PrefixTokenCount = 0u; 1208 1209 auto TestRequires = [&](int Line) { 1210 const auto BaseTokens = annotate(BaseCode); 1211 const auto ConstrainedTokens = annotate(ConstrainedCode); 1212 1213 #define LINE " (Line " << Line << ')' 1214 1215 ASSERT_EQ(BaseTokens.size(), BaseTokenCount) << BaseTokens << LINE; 1216 ASSERT_EQ(ConstrainedTokens.size(), BaseTokenCount + RequiresTokenCount) 1217 << LINE; 1218 1219 for (auto I = 0u; I < BaseTokenCount; ++I) { 1220 EXPECT_EQ( 1221 *BaseTokens[I], 1222 *ConstrainedTokens[I < PrefixTokenCount ? I : I + RequiresTokenCount]) 1223 << I << LINE; 1224 } 1225 1226 #undef LINE 1227 }; 1228 1229 BaseCode = "template<typename T>\n" 1230 "T Pi = 3.14;"; 1231 ConstrainedCode = "template<typename T>\n" 1232 " requires Foo<T>\n" 1233 "T Pi = 3.14;"; 1234 BaseTokenCount = 11; 1235 RequiresTokenCount = 5; 1236 PrefixTokenCount = 5; 1237 TestRequires(__LINE__); 1238 1239 BaseCode = "template<typename T>\n" 1240 "struct Bar;"; 1241 ConstrainedCode = "template<typename T>\n" 1242 " requires Foo<T>\n" 1243 "struct Bar;"; 1244 BaseTokenCount = 9; 1245 TestRequires(__LINE__); 1246 1247 BaseCode = "template<typename T>\n" 1248 "struct Bar {\n" 1249 " T foo();\n" 1250 " T bar();\n" 1251 "};"; 1252 ConstrainedCode = "template<typename T>\n" 1253 " requires Foo<T>\n" 1254 "struct Bar {\n" 1255 " T foo();\n" 1256 " T bar();\n" 1257 "};"; 1258 BaseTokenCount = 21; 1259 TestRequires(__LINE__); 1260 1261 BaseCode = "template<typename T>\n" 1262 "Bar(T) -> Bar<T>;"; 1263 ConstrainedCode = "template<typename T>\n" 1264 " requires Foo<T>\n" 1265 "Bar(T) -> Bar<T>;"; 1266 BaseTokenCount = 16; 1267 TestRequires(__LINE__); 1268 1269 BaseCode = "template<typename T>\n" 1270 "T foo();"; 1271 ConstrainedCode = "template<typename T>\n" 1272 " requires Foo<T>\n" 1273 "T foo();"; 1274 BaseTokenCount = 11; 1275 TestRequires(__LINE__); 1276 1277 BaseCode = "template<typename T>\n" 1278 "T foo() {\n" 1279 " auto bar = baz();\n" 1280 " return bar + T{};\n" 1281 "}"; 1282 ConstrainedCode = "template<typename T>\n" 1283 " requires Foo<T>\n" 1284 "T foo() {\n" 1285 " auto bar = baz();\n" 1286 " return bar + T{};\n" 1287 "}"; 1288 BaseTokenCount = 26; 1289 TestRequires(__LINE__); 1290 1291 BaseCode = "template<typename T>\n" 1292 "T foo();"; 1293 ConstrainedCode = "template<typename T>\n" 1294 "T foo() requires Foo<T>;"; 1295 BaseTokenCount = 11; 1296 PrefixTokenCount = 9; 1297 TestRequires(__LINE__); 1298 1299 BaseCode = "template<typename T>\n" 1300 "T foo() {\n" 1301 " auto bar = baz();\n" 1302 " return bar + T{};\n" 1303 "}"; 1304 ConstrainedCode = "template<typename T>\n" 1305 "T foo() requires Foo<T> {\n" 1306 " auto bar = baz();\n" 1307 " return bar + T{};\n" 1308 "}"; 1309 BaseTokenCount = 26; 1310 TestRequires(__LINE__); 1311 1312 BaseCode = "template<typename T>\n" 1313 "T foo();"; 1314 ConstrainedCode = "template<typename T>\n" 1315 " requires(Foo<T>)\n" 1316 "T foo();"; 1317 BaseTokenCount = 11; 1318 RequiresTokenCount = 7; 1319 PrefixTokenCount = 5; 1320 TestRequires(__LINE__); 1321 1322 BaseCode = "template<typename T>\n" 1323 "Bar(T) -> Bar<typename T::I>;"; 1324 ConstrainedCode = "template<typename T>\n" 1325 " requires requires(T &&t) {\n" 1326 " typename T::I;\n" 1327 " }\n" 1328 "Bar(T) -> Bar<typename T::I>;"; 1329 BaseTokenCount = 19; 1330 RequiresTokenCount = 14; 1331 PrefixTokenCount = 5; 1332 TestRequires(__LINE__); 1333 1334 BaseCode = "struct [[nodiscard]] zero_t {\n" 1335 " template<class T>\n" 1336 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1337 "};"; 1338 ConstrainedCode = 1339 "struct [[nodiscard]] zero_t {\n" 1340 " template<class T>\n" 1341 " requires requires { v<T>; }\n" 1342 " [[nodiscard]] constexpr operator T() const { return v<T>; }\n" 1343 "};"; 1344 BaseTokenCount = 35; 1345 RequiresTokenCount = 9; 1346 PrefixTokenCount = 13; 1347 TestRequires(__LINE__); 1348 1349 BaseCode = "constexpr Foo(Foo const &other)\n" 1350 " : value{other.value} {\n" 1351 " do_magic();\n" 1352 " do_more_magic();\n" 1353 "}"; 1354 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1355 " requires std::is_copy_constructible<T>\n" 1356 " : value{other.value} {\n" 1357 " do_magic();\n" 1358 " do_more_magic();\n" 1359 "}"; 1360 BaseTokenCount = 26; 1361 RequiresTokenCount = 7; 1362 PrefixTokenCount = 8; 1363 TestRequires(__LINE__); 1364 1365 BaseCode = "constexpr Foo(Foo const &other)\n" 1366 " : value{other.value} {\n" 1367 " do_magic();\n" 1368 " do_more_magic();\n" 1369 "}"; 1370 ConstrainedCode = "constexpr Foo(Foo const &other)\n" 1371 " requires (std::is_copy_constructible<T>)\n" 1372 " : value{other.value} {\n" 1373 " do_magic();\n" 1374 " do_more_magic();\n" 1375 "}"; 1376 RequiresTokenCount = 9; 1377 TestRequires(__LINE__); 1378 } 1379 1380 TEST_F(TokenAnnotatorTest, UnderstandsAsm) { 1381 auto Tokens = annotate("__asm{\n" 1382 "a:\n" 1383 "};"); 1384 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1385 EXPECT_TOKEN(Tokens[0], tok::kw_asm, TT_Unknown); 1386 EXPECT_TOKEN(Tokens[1], tok::l_brace, TT_InlineASMBrace); 1387 EXPECT_TOKEN(Tokens[4], tok::r_brace, TT_InlineASMBrace); 1388 } 1389 1390 TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) { 1391 auto Tokens = annotate("int (^)() = ^ ()\n" 1392 " external_source_symbol() { //\n" 1393 " return 1;\n" 1394 "};"); 1395 ASSERT_EQ(Tokens.size(), 21u) << Tokens; 1396 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ObjCBlockLParen); 1397 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_ObjCBlockLBrace); 1398 1399 Tokens = annotate("int *p = ^int*(){ //\n" 1400 " return nullptr;\n" 1401 "}();"); 1402 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1403 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace); 1404 } 1405 1406 TEST_F(TokenAnnotatorTest, UnderstandsObjCMethodExpr) { 1407 auto Tokens = annotate("void f() {\n" 1408 " //\n" 1409 " BOOL a = [b.c n] > 1;\n" 1410 "}"); 1411 EXPECT_EQ(Tokens.size(), 20u) << Tokens; 1412 EXPECT_TOKEN(Tokens[9], tok::l_square, TT_ObjCMethodExpr); 1413 EXPECT_TOKEN(Tokens[15], tok::greater, TT_BinaryOperator); 1414 } 1415 1416 TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { 1417 auto Tokens = annotate("[]() constexpr {}"); 1418 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1419 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1420 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1421 1422 Tokens = annotate("[]() consteval {}"); 1423 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1424 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1425 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1426 1427 Tokens = annotate("[]() mutable {}"); 1428 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1429 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1430 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1431 1432 Tokens = annotate("[]() static {}"); 1433 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1434 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1435 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace); 1436 1437 Tokens = annotate("[]() -> auto {}"); 1438 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1439 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1440 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1441 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1442 1443 Tokens = annotate("[]() -> auto & {}"); 1444 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1445 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1446 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1447 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1448 1449 Tokens = annotate("[]() -> auto * {}"); 1450 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1451 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1452 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_LambdaArrow); 1453 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1454 1455 Tokens = annotate("[] {}"); 1456 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1457 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1458 EXPECT_TOKEN(Tokens[2], tok::l_brace, TT_LambdaLBrace); 1459 1460 Tokens = annotate("[] noexcept {}"); 1461 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1462 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1463 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_LambdaLBrace); 1464 1465 Tokens = annotate("[] -> auto {}"); 1466 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1467 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1468 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_LambdaArrow); 1469 EXPECT_TOKEN(Tokens[4], tok::l_brace, TT_LambdaLBrace); 1470 1471 Tokens = annotate("[] <typename T> () {}"); 1472 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1473 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1474 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1475 EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_LambdaLBrace); 1476 1477 Tokens = annotate("[] <typename T> {}"); 1478 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1479 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1480 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1481 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_LambdaLBrace); 1482 1483 Tokens = annotate("[] <typename... T> () {}"); 1484 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1485 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1486 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1487 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1488 1489 Tokens = annotate("[] <typename... T> {}"); 1490 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1491 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1492 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1493 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1494 1495 Tokens = annotate("[] <int... T> () {}"); 1496 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1497 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1498 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1499 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1500 1501 Tokens = annotate("[] <int... T> {}"); 1502 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1503 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1504 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1505 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1506 1507 Tokens = annotate("[] <Foo... T> () {}"); 1508 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1509 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1510 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1511 EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_LambdaLBrace); 1512 1513 Tokens = annotate("[] <Foo... T> {}"); 1514 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1515 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1516 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1517 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_LambdaLBrace); 1518 1519 // Lambdas with a requires-clause 1520 Tokens = annotate("[] <typename T> (T t) requires Bar<T> {}"); 1521 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1522 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1523 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1524 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1525 EXPECT_TRUE(Tokens[14]->ClosesRequiresClause); 1526 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1527 1528 Tokens = annotate("[] <typename T> (T &&t) requires Bar<T> {}"); 1529 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1530 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1531 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1532 EXPECT_TOKEN(Tokens[8], tok::ampamp, TT_PointerOrReference); 1533 EXPECT_TOKEN(Tokens[11], tok::kw_requires, TT_RequiresClause); 1534 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1535 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1536 1537 Tokens = annotate("[] <typename T> (T t) requires Foo<T> || Bar<T> {}"); 1538 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1539 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1540 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1541 EXPECT_TOKEN(Tokens[10], tok::kw_requires, TT_RequiresClause); 1542 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1543 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1544 1545 Tokens = annotate("[] <typename T> (T t) -> T requires Bar<T> {}"); 1546 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1547 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1548 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1549 EXPECT_TOKEN(Tokens[10], tok::arrow, TT_LambdaArrow); 1550 EXPECT_TOKEN(Tokens[12], tok::kw_requires, TT_RequiresClause); 1551 EXPECT_TRUE(Tokens[16]->ClosesRequiresClause); 1552 EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace); 1553 1554 Tokens = annotate("[] <typename T> requires Bar<T> (T t) {}"); 1555 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1556 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1557 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1558 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1559 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1560 EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace); 1561 1562 Tokens = annotate("[] <typename T> requires Bar<T> (T &&t) {}"); 1563 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 1564 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1565 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1566 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1567 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1568 EXPECT_TOKEN(Tokens[13], tok::ampamp, TT_PointerOrReference); 1569 EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_LambdaLBrace); 1570 1571 Tokens = annotate("[] <typename T> requires Foo<T> || Bar<T> (T t) {}"); 1572 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1573 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1574 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1575 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1576 EXPECT_TRUE(Tokens[15]->ClosesRequiresClause); 1577 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1578 1579 Tokens = annotate("[] <typename T> requires true (T&& t) {}"); 1580 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1581 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1582 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1583 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1584 EXPECT_TRUE(Tokens[7]->ClosesRequiresClause); 1585 EXPECT_TOKEN(Tokens[10], tok::ampamp, TT_PointerOrReference); 1586 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1587 1588 Tokens = annotate("[] <typename T> requires Bar<T> {}"); 1589 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1590 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1591 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1592 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1593 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1594 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_LambdaLBrace); 1595 1596 Tokens = annotate("[] <typename T> requires Bar<T> noexcept {}"); 1597 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1598 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1599 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1600 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1601 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1602 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_LambdaLBrace); 1603 1604 Tokens = annotate("[] <typename T> requires Bar<T> -> T {}"); 1605 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1606 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1607 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1608 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1609 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1610 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_LambdaArrow); 1611 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); 1612 1613 Tokens = annotate("[] <typename T> requires Foo<T> (T t) requires Bar<T> {}"); 1614 ASSERT_EQ(Tokens.size(), 23u) << Tokens; 1615 EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare); 1616 EXPECT_TOKEN(Tokens[2], tok::less, TT_TemplateOpener); 1617 EXPECT_TOKEN(Tokens[6], tok::kw_requires, TT_RequiresClause); 1618 EXPECT_TRUE(Tokens[10]->ClosesRequiresClause); 1619 EXPECT_TOKEN(Tokens[15], tok::kw_requires, TT_RequiresClause); 1620 EXPECT_TRUE(Tokens[19]->ClosesRequiresClause); 1621 EXPECT_TOKEN(Tokens[20], tok::l_brace, TT_LambdaLBrace); 1622 } 1623 1624 TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { 1625 auto Tokens = annotate("template <typename T>\n" 1626 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 1627 "string OldFunction(const string ¶meter) {}"); 1628 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1629 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_FunctionAnnotationRParen); 1630 1631 Tokens = annotate("template <typename T>\n" 1632 "A(T) noexcept;"); 1633 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1634 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1635 } 1636 1637 TEST_F(TokenAnnotatorTest, UnderstandsFunctionDeclarationNames) { 1638 auto Tokens = annotate("void f [[noreturn]] ();"); 1639 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1640 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1641 1642 Tokens = annotate("void f [[noreturn]] () {}"); 1643 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1644 EXPECT_TOKEN(Tokens[1], tok::identifier, TT_FunctionDeclarationName); 1645 1646 Tokens = annotate("#define FOO Foo::\n" 1647 "FOO Foo();"); 1648 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1649 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_FunctionDeclarationName); 1650 1651 Tokens = annotate("struct Foo {\n" 1652 " Bar (*func)();\n" 1653 "};"); 1654 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1655 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_Unknown); 1656 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_FunctionTypeLParen); 1657 } 1658 1659 TEST_F(TokenAnnotatorTest, UnderstandsCtorAndDtorDeclNames) { 1660 auto Tokens = annotate("class Foo { public: Foo(); };"); 1661 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1662 EXPECT_TOKEN(Tokens[5], tok::identifier, TT_CtorDtorDeclName); 1663 1664 Tokens = annotate("class Foo { public: ~Foo(); };"); 1665 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1666 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_CtorDtorDeclName); 1667 1668 Tokens = annotate("struct Foo { [[deprecated]] Foo() {} };"); 1669 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1670 EXPECT_TOKEN(Tokens[8], tok::identifier, TT_CtorDtorDeclName); 1671 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1672 1673 Tokens = annotate("struct Foo { [[deprecated]] ~Foo() {} };"); 1674 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1675 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_CtorDtorDeclName); 1676 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1677 1678 Tokens = annotate("struct Foo { Foo() [[deprecated]] {} };"); 1679 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1680 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_CtorDtorDeclName); 1681 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_FunctionLBrace); 1682 1683 Tokens = annotate("struct Foo { ~Foo() [[deprecated]] {} };"); 1684 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1685 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_CtorDtorDeclName); 1686 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1687 1688 Tokens = annotate("struct Foo { [[deprecated]] explicit Foo() {} };"); 1689 ASSERT_EQ(Tokens.size(), 17u) << Tokens; 1690 EXPECT_TOKEN(Tokens[9], tok::identifier, TT_CtorDtorDeclName); 1691 EXPECT_TOKEN(Tokens[12], tok::l_brace, TT_FunctionLBrace); 1692 1693 Tokens = annotate("struct Foo { virtual [[deprecated]] ~Foo() {} };"); 1694 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1695 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_CtorDtorDeclName); 1696 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1697 1698 Tokens = annotate("Foo::Foo() {}"); 1699 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1700 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_CtorDtorDeclName); 1701 EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_FunctionLBrace); 1702 1703 Tokens = annotate("Foo::~Foo() {}"); 1704 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1705 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_CtorDtorDeclName); 1706 EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_FunctionLBrace); 1707 1708 Tokens = annotate("struct Test {\n" 1709 " Test()\n" 1710 " : l([] {\n" 1711 " Short::foo();\n" 1712 " }) {}\n" 1713 "};"); 1714 ASSERT_EQ(Tokens.size(), 25u) << Tokens; 1715 EXPECT_TOKEN(Tokens[3], tok::identifier, TT_CtorDtorDeclName); 1716 EXPECT_TOKEN(Tokens[14], tok::identifier, TT_Unknown); 1717 } 1718 1719 TEST_F(TokenAnnotatorTest, UnderstandsC11GenericSelection) { 1720 auto Tokens = annotate("_Generic(x, int: 1, default: 0)"); 1721 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1722 EXPECT_TOKEN(Tokens[0], tok::kw__Generic, TT_Unknown); 1723 EXPECT_TOKEN(Tokens[5], tok::colon, TT_GenericSelectionColon); 1724 EXPECT_TOKEN(Tokens[9], tok::colon, TT_GenericSelectionColon); 1725 } 1726 1727 TEST_F(TokenAnnotatorTest, UnderstandsTrailingReturnArrow) { 1728 auto Tokens = annotate("auto f() -> int;"); 1729 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1730 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1731 1732 Tokens = annotate("auto operator->() -> int;"); 1733 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1734 EXPECT_TOKEN(Tokens[2], tok::arrow, TT_OverloadedOperator); 1735 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1736 1737 Tokens = annotate("auto operator++(int) -> int;"); 1738 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1739 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1740 1741 Tokens = annotate("auto operator=() -> int;"); 1742 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1743 EXPECT_TOKEN(Tokens[5], tok::arrow, TT_TrailingReturnArrow); 1744 1745 Tokens = annotate("auto operator=(int) -> int;"); 1746 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1747 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_TrailingReturnArrow); 1748 1749 Tokens = annotate("auto foo() -> auto { return Val; }"); 1750 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1751 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1752 1753 Tokens = annotate("struct S { auto bar() const -> int; };"); 1754 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1755 EXPECT_TOKEN(Tokens[8], tok::arrow, TT_TrailingReturnArrow); 1756 1757 // Not trailing return arrows 1758 Tokens = annotate("auto a = b->c;"); 1759 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1760 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1761 1762 Tokens = annotate("auto a = (b)->c;"); 1763 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1764 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1765 1766 Tokens = annotate("auto a = b()->c;"); 1767 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1768 EXPECT_TOKEN(Tokens[6], tok::arrow, TT_Unknown); 1769 1770 Tokens = annotate("auto a = b->c();"); 1771 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1772 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_Unknown); 1773 1774 Tokens = annotate("decltype(auto) a = b()->c;"); 1775 ASSERT_EQ(Tokens.size(), 13u) << Tokens; 1776 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1777 1778 Tokens = annotate("void f() { auto a = b->c(); }"); 1779 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1780 EXPECT_TOKEN(Tokens[9], tok::arrow, TT_Unknown); 1781 1782 Tokens = annotate("void f() { auto a = b()->c; }"); 1783 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1784 EXPECT_TOKEN(Tokens[11], tok::arrow, TT_Unknown); 1785 1786 Tokens = annotate("#define P(ptr) auto p = (ptr)->p"); 1787 ASSERT_EQ(Tokens.size(), 15u) << Tokens; 1788 EXPECT_TOKEN(Tokens[12], tok::arrow, TT_Unknown); 1789 1790 // Mixed 1791 Tokens = annotate("auto f() -> int { auto a = b()->c; }"); 1792 ASSERT_EQ(Tokens.size(), 18u) << Tokens; 1793 EXPECT_TOKEN(Tokens[4], tok::arrow, TT_TrailingReturnArrow); 1794 EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); 1795 } 1796 1797 TEST_F(TokenAnnotatorTest, UnderstandsVerilogOperators) { 1798 auto Annotate = [this](llvm::StringRef Code) { 1799 return annotate(Code, getLLVMStyle(FormatStyle::LK_Verilog)); 1800 }; 1801 // Test that unary operators get labeled as such and that operators like '++' 1802 // don't get split. 1803 tok::TokenKind Unary[] = {tok::plus, tok::minus, tok::exclaim, 1804 tok::tilde, tok::amp, tok::pipe, 1805 tok::caret, tok::plusplus, tok::minusminus}; 1806 for (auto Kind : Unary) { 1807 auto Tokens = 1808 Annotate(std::string("x = ") + tok::getPunctuatorSpelling(Kind) + "x;"); 1809 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1810 EXPECT_TOKEN(Tokens[2], Kind, TT_UnaryOperator); 1811 } 1812 // Operators formed by joining two operators like '^~'. For some of these 1813 // joined operators, we don't have a separate type, so we only test for their 1814 // precedence. 1815 std::pair<prec::Level, std::string> JoinedBinary[] = { 1816 {prec::Comma, "<->"}, {prec::Assignment, "+="}, 1817 {prec::Assignment, "-="}, {prec::Assignment, "*="}, 1818 {prec::Assignment, "/="}, {prec::Assignment, "%="}, 1819 {prec::Assignment, "&="}, {prec::Assignment, "^="}, 1820 {prec::Assignment, "<<="}, {prec::Assignment, ">>="}, 1821 {prec::Assignment, "<<<="}, {prec::Assignment, ">>>="}, 1822 {prec::LogicalOr, "||"}, {prec::LogicalAnd, "&&"}, 1823 {prec::Equality, "=="}, {prec::Equality, "!="}, 1824 {prec::Equality, "==="}, {prec::Equality, "!=="}, 1825 {prec::Equality, "==?"}, {prec::Equality, "!=?"}, 1826 {prec::ExclusiveOr, "~^"}, {prec::ExclusiveOr, "^~"}, 1827 }; 1828 for (auto Operator : JoinedBinary) { 1829 auto Tokens = Annotate(std::string("x = x ") + Operator.second + " x;"); 1830 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1831 EXPECT_TOKEN_TYPE(Tokens[3], TT_BinaryOperator); 1832 EXPECT_TOKEN_PRECEDENCE(Tokens[3], Operator.first); 1833 } 1834 // '~^' and '^~' can be unary as well as binary operators. 1835 auto Tokens = Annotate("x = ~^x;"); 1836 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1837 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1838 Tokens = Annotate("x = ^~x;"); 1839 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1840 EXPECT_TOKEN_TYPE(Tokens[2], TT_UnaryOperator); 1841 // The unary operators '~&' and '~|' can only be unary operators. The current 1842 // implementation treats each of them as separate unary '~' and '&' or '|' 1843 // operators, which is enough for formatting purposes. In FormatTestVerilog, 1844 // there is a test that there is no space in between. And even if a new line 1845 // is inserted between the '~' and '|', the semantic meaning is the same as 1846 // the joined operator, so the CanBreakBefore property doesn't need to be 1847 // false for the second operator. 1848 Tokens = Annotate("x = ~&x;"); 1849 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1850 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1851 EXPECT_TOKEN(Tokens[3], tok::amp, TT_UnaryOperator); 1852 Tokens = Annotate("x = ~|x;"); 1853 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1854 EXPECT_TOKEN(Tokens[2], tok::tilde, TT_UnaryOperator); 1855 EXPECT_TOKEN(Tokens[3], tok::pipe, TT_UnaryOperator); 1856 // Test for block label colons. 1857 Tokens = Annotate("begin : x\n" 1858 "end : x"); 1859 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1860 EXPECT_TOKEN(Tokens[1], tok::colon, TT_VerilogBlockLabelColon); 1861 EXPECT_TOKEN(Tokens[4], tok::colon, TT_VerilogBlockLabelColon); 1862 // Test that the dimension colon is annotated correctly. 1863 Tokens = Annotate("var [1 : 0] x;"); 1864 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1865 EXPECT_TOKEN(Tokens[3], tok::colon, TT_BitFieldColon); 1866 Tokens = Annotate("extern function [1 : 0] x;"); 1867 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1868 EXPECT_TOKEN(Tokens[4], tok::colon, TT_BitFieldColon); 1869 Tokens = Annotate("module test\n" 1870 " (input wire [7 : 0] a[7 : 0]);\n" 1871 "endmodule"); 1872 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 1873 EXPECT_TOKEN(Tokens[4], tok::identifier, TT_VerilogDimensionedTypeName); 1874 EXPECT_TOKEN(Tokens[7], tok::colon, TT_BitFieldColon); 1875 EXPECT_TOKEN(Tokens[13], tok::colon, TT_BitFieldColon); 1876 // Test case labels and ternary operators. 1877 Tokens = Annotate("case (x)\n" 1878 " x:\n" 1879 " x;\n" 1880 "endcase\n"); 1881 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1882 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CaseLabelColon); 1883 Tokens = Annotate("case (x)\n" 1884 " x ? x : x:\n" 1885 " x;\n" 1886 "endcase\n"); 1887 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 1888 EXPECT_TOKEN(Tokens[5], tok::question, TT_ConditionalExpr); 1889 EXPECT_TOKEN(Tokens[7], tok::colon, TT_ConditionalExpr); 1890 EXPECT_TOKEN(Tokens[9], tok::colon, TT_CaseLabelColon); 1891 // Non-blocking assignments. 1892 Tokens = Annotate("a <= b;"); 1893 ASSERT_EQ(Tokens.size(), 5u) << Tokens; 1894 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1895 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1896 Tokens = Annotate("if (a <= b) break;"); 1897 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1898 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1899 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1900 Tokens = Annotate("a <= b <= a;"); 1901 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1902 EXPECT_TOKEN(Tokens[1], tok::lessequal, TT_BinaryOperator); 1903 EXPECT_TOKEN_PRECEDENCE(Tokens[1], prec::Assignment); 1904 EXPECT_TOKEN(Tokens[3], tok::lessequal, TT_BinaryOperator); 1905 EXPECT_TOKEN_PRECEDENCE(Tokens[3], prec::Relational); 1906 1907 // Port lists in module instantiation. 1908 Tokens = Annotate("module_x instance_1(port_1), instance_2(port_2);"); 1909 ASSERT_EQ(Tokens.size(), 12u) << Tokens; 1910 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1911 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_VerilogInstancePortLParen); 1912 Tokens = Annotate("module_x #(parameter) instance_1(port_1), " 1913 "instance_2(port_2);"); 1914 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1915 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_VerilogInstancePortLParen); 1916 EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_VerilogInstancePortLParen); 1917 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_VerilogInstancePortLParen); 1918 1919 // Condition parentheses. 1920 Tokens = Annotate("assert (x);"); 1921 ASSERT_EQ(Tokens.size(), 6u) << Tokens; 1922 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1923 Tokens = Annotate("assert #0 (x);"); 1924 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1925 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_ConditionLParen); 1926 Tokens = Annotate("assert final (x);"); 1927 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1928 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 1929 Tokens = Annotate("foreach (x[x]) continue;"); 1930 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1931 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1932 Tokens = Annotate("repeat (x[x]) continue;"); 1933 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1934 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1935 Tokens = Annotate("case (x) endcase;"); 1936 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1937 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 1938 1939 // Sensitivity list. The TT_Unknown type is clearly not binding for the 1940 // future, please adapt if those tokens get annotated. This test is only here 1941 // to prevent the comma from being annotated as TT_VerilogInstancePortComma. 1942 Tokens = Annotate("always @(posedge x, posedge y);"); 1943 ASSERT_EQ(Tokens.size(), 11u) << Tokens; 1944 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_Unknown); 1945 EXPECT_TOKEN(Tokens[5], tok::comma, TT_Unknown); 1946 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1947 1948 // String literals in concatenation. 1949 Tokens = Annotate("x = {\"\"};"); 1950 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 1951 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1952 Tokens = Annotate("x = {\"\", \"\"};"); 1953 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1954 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_StringInConcatenation); 1955 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1956 Tokens = Annotate("x = '{{\"\"}};"); 1957 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 1958 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_StringInConcatenation); 1959 // Cases where the string should not be annotated that type. Fix the 1960 // `TT_Unknown` if needed in the future. 1961 Tokens = Annotate("x = {\"\" == \"\"};"); 1962 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1963 EXPECT_TOKEN(Tokens[3], tok::string_literal, TT_Unknown); 1964 EXPECT_TOKEN(Tokens[5], tok::string_literal, TT_Unknown); 1965 Tokens = Annotate("x = {(\"\")};"); 1966 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 1967 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1968 Tokens = Annotate("x = '{\"\"};"); 1969 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 1970 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_Unknown); 1971 } 1972 1973 TEST_F(TokenAnnotatorTest, UnderstandConstructors) { 1974 auto Tokens = annotate("Class::Class() : BaseClass(), Member() {}"); 1975 1976 // The TT_Unknown is clearly not binding for the future, please adapt if those 1977 // tokens get annotated. 1978 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1979 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1980 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1981 EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_Unknown); 1982 EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_Unknown); 1983 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1984 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1985 EXPECT_TOKEN(Tokens[11], tok::l_paren, TT_Unknown); 1986 EXPECT_TOKEN(Tokens[12], tok::r_paren, TT_Unknown); 1987 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 1988 1989 Tokens = annotate("Class::Class() : BaseClass{}, Member{} {}"); 1990 ASSERT_EQ(Tokens.size(), 16u) << Tokens; 1991 EXPECT_TOKEN(Tokens[5], tok::colon, TT_CtorInitializerColon); 1992 EXPECT_TOKEN(Tokens[6], tok::identifier, TT_Unknown); 1993 EXPECT_TOKEN(Tokens[7], tok::l_brace, TT_Unknown); 1994 EXPECT_TOKEN(Tokens[8], tok::r_brace, TT_Unknown); 1995 EXPECT_TOKEN(Tokens[9], tok::comma, TT_CtorInitializerComma); 1996 EXPECT_TOKEN(Tokens[10], tok::identifier, TT_Unknown); 1997 EXPECT_TOKEN(Tokens[11], tok::l_brace, TT_Unknown); 1998 EXPECT_TOKEN(Tokens[12], tok::r_brace, TT_Unknown); 1999 EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_FunctionLBrace); 2000 } 2001 2002 TEST_F(TokenAnnotatorTest, UnderstandsConditionParens) { 2003 auto Tokens = annotate("if (x) {}"); 2004 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 2005 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 2006 Tokens = annotate("if constexpr (x) {}"); 2007 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2008 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 2009 Tokens = annotate("if CONSTEXPR (x) {}"); 2010 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2011 EXPECT_TOKEN(Tokens[2], tok::l_paren, TT_ConditionLParen); 2012 Tokens = annotate("if (x) {} else if (x) {}"); 2013 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2014 EXPECT_TOKEN(Tokens[1], tok::l_paren, TT_ConditionLParen); 2015 EXPECT_TOKEN(Tokens[8], tok::l_paren, TT_ConditionLParen); 2016 } 2017 2018 TEST_F(TokenAnnotatorTest, CSharpNullableTypes) { 2019 FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp); 2020 2021 auto Tokens = annotate("int? a;", Style); 2022 EXPECT_EQ(Tokens.size(), 5u) << Tokens; 2023 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 2024 2025 Tokens = annotate("int? a = 1;", Style); 2026 EXPECT_EQ(Tokens.size(), 7u) << Tokens; 2027 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 2028 2029 Tokens = annotate("int?)", Style); 2030 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 2031 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 2032 2033 Tokens = annotate("int?>", Style); 2034 EXPECT_EQ(Tokens.size(), 4u) << Tokens; 2035 EXPECT_TOKEN(Tokens[1], tok::question, TT_CSharpNullable); 2036 2037 Tokens = annotate("cond? id : id2", Style); 2038 EXPECT_EQ(Tokens.size(), 6u) << Tokens; 2039 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 2040 2041 Tokens = annotate("cond ? cond2 ? : id1 : id2", Style); 2042 EXPECT_EQ(Tokens.size(), 9u) << Tokens; 2043 EXPECT_TOKEN(Tokens[1], tok::question, TT_ConditionalExpr); 2044 } 2045 2046 TEST_F(TokenAnnotatorTest, UnderstandsLabels) { 2047 auto Tokens = annotate("{ x: break; }"); 2048 ASSERT_EQ(Tokens.size(), 7u) << Tokens; 2049 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 2050 Tokens = annotate("{ case x: break; }"); 2051 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2052 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 2053 Tokens = annotate("{ x: { break; } }"); 2054 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 2055 EXPECT_TOKEN(Tokens[2], tok::colon, TT_GotoLabelColon); 2056 Tokens = annotate("{ case x: { break; } }"); 2057 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2058 EXPECT_TOKEN(Tokens[3], tok::colon, TT_CaseLabelColon); 2059 } 2060 2061 TEST_F(TokenAnnotatorTest, UnderstandsNestedBlocks) { 2062 // The closing braces are not annotated. It doesn't seem to cause a problem. 2063 // So we only test for the opening braces. 2064 auto Tokens = annotate("{\n" 2065 " {\n" 2066 " { int a = 0; }\n" 2067 " }\n" 2068 " {}\n" 2069 "}"); 2070 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2071 EXPECT_BRACE_KIND(Tokens[0], BK_Block); 2072 EXPECT_BRACE_KIND(Tokens[1], BK_Block); 2073 EXPECT_BRACE_KIND(Tokens[2], BK_Block); 2074 EXPECT_BRACE_KIND(Tokens[10], BK_Block); 2075 } 2076 2077 TEST_F(TokenAnnotatorTest, UnderstandDesignatedInitializers) { 2078 auto Tokens = annotate("SomeStruct { .a = 1 };"); 2079 ASSERT_EQ(Tokens.size(), 9u) << Tokens; 2080 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2081 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2082 2083 Tokens = annotate("SomeStruct { .a = 1, .b = 2 };"); 2084 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2085 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2086 EXPECT_TOKEN(Tokens[2], tok::period, TT_DesignatedInitializerPeriod); 2087 EXPECT_TOKEN(Tokens[7], tok::period, TT_DesignatedInitializerPeriod); 2088 2089 Tokens = annotate("SomeStruct {\n" 2090 "#ifdef FOO\n" 2091 " .a = 1,\n" 2092 "#endif\n" 2093 " .b = 2\n" 2094 "};"); 2095 ASSERT_EQ(Tokens.size(), 19u) << Tokens; 2096 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2097 EXPECT_TOKEN(Tokens[5], tok::period, TT_DesignatedInitializerPeriod); 2098 EXPECT_TOKEN(Tokens[12], tok::period, TT_DesignatedInitializerPeriod); 2099 2100 Tokens = annotate("SomeStruct {\n" 2101 "#if defined FOO\n" 2102 " .a = 1,\n" 2103 "#endif\n" 2104 " .b = 2\n" 2105 "};"); 2106 ASSERT_EQ(Tokens.size(), 20u) << Tokens; 2107 EXPECT_BRACE_KIND(Tokens[1], BK_BracedInit); 2108 EXPECT_TOKEN(Tokens[6], tok::period, TT_DesignatedInitializerPeriod); 2109 EXPECT_TOKEN(Tokens[13], tok::period, TT_DesignatedInitializerPeriod); 2110 } 2111 2112 TEST_F(TokenAnnotatorTest, UnderstandsJavaScript) { 2113 auto Annotate = [this](llvm::StringRef Code) { 2114 return annotate(Code, getLLVMStyle(FormatStyle::LK_JavaScript)); 2115 }; 2116 2117 // Dictionary. 2118 auto Tokens = Annotate("var x = {'x' : 1, 'y' : 2};"); 2119 ASSERT_EQ(Tokens.size(), 14u) << Tokens; 2120 EXPECT_TOKEN(Tokens[3], tok::l_brace, TT_DictLiteral); 2121 EXPECT_TOKEN(Tokens[4], tok::string_literal, TT_SelectorName); 2122 EXPECT_TOKEN(Tokens[5], tok::colon, TT_DictLiteral); 2123 EXPECT_TOKEN(Tokens[8], tok::string_literal, TT_SelectorName); 2124 EXPECT_TOKEN(Tokens[9], tok::colon, TT_DictLiteral); 2125 // Change when we need to annotate these. 2126 EXPECT_BRACE_KIND(Tokens[3], BK_Unknown); 2127 EXPECT_BRACE_KIND(Tokens[11], BK_Unknown); 2128 EXPECT_TOKEN(Tokens[11], tok::r_brace, TT_Unknown); 2129 } 2130 2131 TEST_F(TokenAnnotatorTest, UnderstandsAttributes) { 2132 auto Tokens = annotate("bool foo __attribute__((unused));"); 2133 ASSERT_EQ(Tokens.size(), 10u) << Tokens; 2134 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_AttributeLParen); 2135 EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_Unknown); 2136 EXPECT_TOKEN(Tokens[6], tok::r_paren, TT_Unknown); 2137 EXPECT_TOKEN(Tokens[7], tok::r_paren, TT_AttributeRParen); 2138 2139 Tokens = annotate("bool foo __declspec(dllimport);"); 2140 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2141 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_AttributeLParen); 2142 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_AttributeRParen); 2143 2144 FormatStyle Style = getLLVMStyle(); 2145 Style.AttributeMacros.push_back("FOO"); 2146 Tokens = annotate("bool foo FOO(unused);", Style); 2147 ASSERT_EQ(Tokens.size(), 8u) << Tokens; 2148 EXPECT_TOKEN(Tokens[2], tok::identifier, TT_AttributeMacro); 2149 EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_AttributeLParen); 2150 EXPECT_TOKEN(Tokens[5], tok::r_paren, TT_AttributeRParen); 2151 } 2152 2153 } // namespace 2154 } // namespace format 2155 } // namespace clang 2156