1 //===-- CompilerType.cpp --------------------------------------------------===// 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 "lldb/Symbol/CompilerType.h" 10 11 #include "lldb/Core/Debugger.h" 12 #include "lldb/Core/StreamFile.h" 13 #include "lldb/Symbol/Type.h" 14 #include "lldb/Target/ExecutionContext.h" 15 #include "lldb/Target/Process.h" 16 #include "lldb/Utility/ConstString.h" 17 #include "lldb/Utility/DataBufferHeap.h" 18 #include "lldb/Utility/DataExtractor.h" 19 #include "lldb/Utility/Scalar.h" 20 #include "lldb/Utility/Stream.h" 21 #include "lldb/Utility/StreamString.h" 22 23 #include <iterator> 24 #include <mutex> 25 #include <optional> 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 // Tests 31 32 bool CompilerType::IsAggregateType() const { 33 if (IsValid()) 34 if (auto type_system_sp = GetTypeSystem()) 35 return type_system_sp->IsAggregateType(m_type); 36 return false; 37 } 38 39 bool CompilerType::IsAnonymousType() const { 40 if (IsValid()) 41 if (auto type_system_sp = GetTypeSystem()) 42 return type_system_sp->IsAnonymousType(m_type); 43 return false; 44 } 45 46 bool CompilerType::IsScopedEnumerationType() const { 47 if (IsValid()) 48 if (auto type_system_sp = GetTypeSystem()) 49 return type_system_sp->IsScopedEnumerationType(m_type); 50 return false; 51 } 52 53 bool CompilerType::IsArrayType(CompilerType *element_type_ptr, uint64_t *size, 54 bool *is_incomplete) const { 55 if (IsValid()) 56 if (auto type_system_sp = GetTypeSystem()) 57 return type_system_sp->IsArrayType(m_type, element_type_ptr, size, 58 is_incomplete); 59 60 if (element_type_ptr) 61 element_type_ptr->Clear(); 62 if (size) 63 *size = 0; 64 if (is_incomplete) 65 *is_incomplete = false; 66 return false; 67 } 68 69 bool CompilerType::IsVectorType(CompilerType *element_type, 70 uint64_t *size) const { 71 if (IsValid()) 72 if (auto type_system_sp = GetTypeSystem()) 73 return type_system_sp->IsVectorType(m_type, element_type, size); 74 return false; 75 } 76 77 bool CompilerType::IsRuntimeGeneratedType() const { 78 if (IsValid()) 79 if (auto type_system_sp = GetTypeSystem()) 80 return type_system_sp->IsRuntimeGeneratedType(m_type); 81 return false; 82 } 83 84 bool CompilerType::IsCharType() const { 85 if (IsValid()) 86 if (auto type_system_sp = GetTypeSystem()) 87 return type_system_sp->IsCharType(m_type); 88 return false; 89 } 90 91 bool CompilerType::IsCompleteType() const { 92 if (IsValid()) 93 if (auto type_system_sp = GetTypeSystem()) 94 return type_system_sp->IsCompleteType(m_type); 95 return false; 96 } 97 98 bool CompilerType::IsForcefullyCompleted() const { 99 if (IsValid()) 100 if (auto type_system_sp = GetTypeSystem()) 101 return type_system_sp->IsForcefullyCompleted(m_type); 102 return false; 103 } 104 105 bool CompilerType::IsConst() const { 106 if (IsValid()) 107 if (auto type_system_sp = GetTypeSystem()) 108 return type_system_sp->IsConst(m_type); 109 return false; 110 } 111 112 bool CompilerType::IsCStringType(uint32_t &length) const { 113 if (IsValid()) 114 if (auto type_system_sp = GetTypeSystem()) 115 return type_system_sp->IsCStringType(m_type, length); 116 return false; 117 } 118 119 bool CompilerType::IsFunctionType() const { 120 if (IsValid()) 121 if (auto type_system_sp = GetTypeSystem()) 122 return type_system_sp->IsFunctionType(m_type); 123 return false; 124 } 125 126 // Used to detect "Homogeneous Floating-point Aggregates" 127 uint32_t 128 CompilerType::IsHomogeneousAggregate(CompilerType *base_type_ptr) const { 129 if (IsValid()) 130 if (auto type_system_sp = GetTypeSystem()) 131 return type_system_sp->IsHomogeneousAggregate(m_type, base_type_ptr); 132 return 0; 133 } 134 135 size_t CompilerType::GetNumberOfFunctionArguments() const { 136 if (IsValid()) 137 if (auto type_system_sp = GetTypeSystem()) 138 return type_system_sp->GetNumberOfFunctionArguments(m_type); 139 return 0; 140 } 141 142 CompilerType 143 CompilerType::GetFunctionArgumentAtIndex(const size_t index) const { 144 if (IsValid()) 145 if (auto type_system_sp = GetTypeSystem()) 146 return type_system_sp->GetFunctionArgumentAtIndex(m_type, index); 147 return CompilerType(); 148 } 149 150 bool CompilerType::IsFunctionPointerType() const { 151 if (IsValid()) 152 if (auto type_system_sp = GetTypeSystem()) 153 return type_system_sp->IsFunctionPointerType(m_type); 154 return false; 155 } 156 157 bool CompilerType::IsBlockPointerType( 158 CompilerType *function_pointer_type_ptr) const { 159 if (IsValid()) 160 if (auto type_system_sp = GetTypeSystem()) 161 return type_system_sp->IsBlockPointerType(m_type, function_pointer_type_ptr); 162 return false; 163 } 164 165 bool CompilerType::IsIntegerType(bool &is_signed) const { 166 if (IsValid()) 167 if (auto type_system_sp = GetTypeSystem()) 168 return type_system_sp->IsIntegerType(m_type, is_signed); 169 return false; 170 } 171 172 bool CompilerType::IsEnumerationType(bool &is_signed) const { 173 if (IsValid()) 174 if (auto type_system_sp = GetTypeSystem()) 175 return type_system_sp->IsEnumerationType(m_type, is_signed); 176 return false; 177 } 178 179 bool CompilerType::IsIntegerOrEnumerationType(bool &is_signed) const { 180 return IsIntegerType(is_signed) || IsEnumerationType(is_signed); 181 } 182 183 bool CompilerType::IsPointerType(CompilerType *pointee_type) const { 184 if (IsValid()) { 185 if (auto type_system_sp = GetTypeSystem()) 186 return type_system_sp->IsPointerType(m_type, pointee_type); 187 } 188 if (pointee_type) 189 pointee_type->Clear(); 190 return false; 191 } 192 193 bool CompilerType::IsPointerOrReferenceType(CompilerType *pointee_type) const { 194 if (IsValid()) { 195 if (auto type_system_sp = GetTypeSystem()) 196 return type_system_sp->IsPointerOrReferenceType(m_type, pointee_type); 197 } 198 if (pointee_type) 199 pointee_type->Clear(); 200 return false; 201 } 202 203 bool CompilerType::IsReferenceType(CompilerType *pointee_type, 204 bool *is_rvalue) const { 205 if (IsValid()) { 206 if (auto type_system_sp = GetTypeSystem()) 207 return type_system_sp->IsReferenceType(m_type, pointee_type, is_rvalue); 208 } 209 if (pointee_type) 210 pointee_type->Clear(); 211 return false; 212 } 213 214 bool CompilerType::ShouldTreatScalarValueAsAddress() const { 215 if (IsValid()) 216 if (auto type_system_sp = GetTypeSystem()) 217 return type_system_sp->ShouldTreatScalarValueAsAddress(m_type); 218 return false; 219 } 220 221 bool CompilerType::IsFloatingPointType(uint32_t &count, 222 bool &is_complex) const { 223 if (IsValid()) { 224 if (auto type_system_sp = GetTypeSystem()) 225 return type_system_sp->IsFloatingPointType(m_type, count, is_complex); 226 } 227 count = 0; 228 is_complex = false; 229 return false; 230 } 231 232 bool CompilerType::IsDefined() const { 233 if (IsValid()) 234 if (auto type_system_sp = GetTypeSystem()) 235 return type_system_sp->IsDefined(m_type); 236 return true; 237 } 238 239 bool CompilerType::IsPolymorphicClass() const { 240 if (IsValid()) { 241 if (auto type_system_sp = GetTypeSystem()) 242 return type_system_sp->IsPolymorphicClass(m_type); 243 } 244 return false; 245 } 246 247 bool CompilerType::IsPossibleDynamicType(CompilerType *dynamic_pointee_type, 248 bool check_cplusplus, 249 bool check_objc) const { 250 if (IsValid()) 251 if (auto type_system_sp = GetTypeSystem()) 252 return type_system_sp->IsPossibleDynamicType(m_type, dynamic_pointee_type, 253 check_cplusplus, check_objc); 254 return false; 255 } 256 257 bool CompilerType::IsScalarType() const { 258 if (IsValid()) 259 if (auto type_system_sp = GetTypeSystem()) 260 return type_system_sp->IsScalarType(m_type); 261 return false; 262 } 263 264 bool CompilerType::IsTemplateType() const { 265 if (IsValid()) 266 if (auto type_system_sp = GetTypeSystem()) 267 return type_system_sp->IsTemplateType(m_type); 268 return false; 269 } 270 271 bool CompilerType::IsTypedefType() const { 272 if (IsValid()) 273 if (auto type_system_sp = GetTypeSystem()) 274 return type_system_sp->IsTypedefType(m_type); 275 return false; 276 } 277 278 bool CompilerType::IsVoidType() const { 279 if (IsValid()) 280 if (auto type_system_sp = GetTypeSystem()) 281 return type_system_sp->IsVoidType(m_type); 282 return false; 283 } 284 285 bool CompilerType::IsPointerToScalarType() const { 286 if (!IsValid()) 287 return false; 288 289 return IsPointerType() && GetPointeeType().IsScalarType(); 290 } 291 292 bool CompilerType::IsArrayOfScalarType() const { 293 CompilerType element_type; 294 if (IsArrayType(&element_type)) 295 return element_type.IsScalarType(); 296 return false; 297 } 298 299 bool CompilerType::IsBeingDefined() const { 300 if (IsValid()) 301 if (auto type_system_sp = GetTypeSystem()) 302 return type_system_sp->IsBeingDefined(m_type); 303 return false; 304 } 305 306 // Type Completion 307 308 bool CompilerType::GetCompleteType() const { 309 if (IsValid()) 310 if (auto type_system_sp = GetTypeSystem()) 311 return type_system_sp->GetCompleteType(m_type); 312 return false; 313 } 314 315 // AST related queries 316 size_t CompilerType::GetPointerByteSize() const { 317 if (auto type_system_sp = GetTypeSystem()) 318 return type_system_sp->GetPointerByteSize(); 319 return 0; 320 } 321 322 ConstString CompilerType::GetTypeName(bool BaseOnly) const { 323 if (IsValid()) { 324 if (auto type_system_sp = GetTypeSystem()) 325 return type_system_sp->GetTypeName(m_type, BaseOnly); 326 } 327 return ConstString("<invalid>"); 328 } 329 330 ConstString CompilerType::GetDisplayTypeName() const { 331 if (IsValid()) 332 if (auto type_system_sp = GetTypeSystem()) 333 return type_system_sp->GetDisplayTypeName(m_type); 334 return ConstString("<invalid>"); 335 } 336 337 uint32_t CompilerType::GetTypeInfo( 338 CompilerType *pointee_or_element_compiler_type) const { 339 if (IsValid()) 340 if (auto type_system_sp = GetTypeSystem()) 341 return type_system_sp->GetTypeInfo(m_type, 342 pointee_or_element_compiler_type); 343 return 0; 344 } 345 346 lldb::LanguageType CompilerType::GetMinimumLanguage() { 347 if (IsValid()) 348 if (auto type_system_sp = GetTypeSystem()) 349 return type_system_sp->GetMinimumLanguage(m_type); 350 return lldb::eLanguageTypeC; 351 } 352 353 lldb::TypeClass CompilerType::GetTypeClass() const { 354 if (IsValid()) 355 if (auto type_system_sp = GetTypeSystem()) 356 return type_system_sp->GetTypeClass(m_type); 357 return lldb::eTypeClassInvalid; 358 } 359 360 void CompilerType::SetCompilerType(lldb::TypeSystemWP type_system, 361 lldb::opaque_compiler_type_t type) { 362 m_type_system = type_system; 363 m_type = type; 364 } 365 366 void CompilerType::SetCompilerType(CompilerType::TypeSystemSPWrapper type_system, 367 lldb::opaque_compiler_type_t type) { 368 m_type_system = type_system.GetSharedPointer(); 369 m_type = type; 370 } 371 372 unsigned CompilerType::GetTypeQualifiers() const { 373 if (IsValid()) 374 if (auto type_system_sp = GetTypeSystem()) 375 return type_system_sp->GetTypeQualifiers(m_type); 376 return 0; 377 } 378 379 // Creating related types 380 381 CompilerType 382 CompilerType::GetArrayElementType(ExecutionContextScope *exe_scope) const { 383 if (IsValid()) { 384 if (auto type_system_sp = GetTypeSystem()) 385 return type_system_sp->GetArrayElementType(m_type, exe_scope); 386 } 387 return CompilerType(); 388 } 389 390 CompilerType CompilerType::GetArrayType(uint64_t size) const { 391 if (IsValid()) { 392 if (auto type_system_sp = GetTypeSystem()) 393 return type_system_sp->GetArrayType(m_type, size); 394 } 395 return CompilerType(); 396 } 397 398 CompilerType CompilerType::GetCanonicalType() const { 399 if (IsValid()) 400 if (auto type_system_sp = GetTypeSystem()) 401 return type_system_sp->GetCanonicalType(m_type); 402 return CompilerType(); 403 } 404 405 CompilerType CompilerType::GetFullyUnqualifiedType() const { 406 if (IsValid()) 407 if (auto type_system_sp = GetTypeSystem()) 408 return type_system_sp->GetFullyUnqualifiedType(m_type); 409 return CompilerType(); 410 } 411 412 CompilerType CompilerType::GetEnumerationIntegerType() const { 413 if (IsValid()) 414 if (auto type_system_sp = GetTypeSystem()) 415 return type_system_sp->GetEnumerationIntegerType(m_type); 416 return CompilerType(); 417 } 418 419 int CompilerType::GetFunctionArgumentCount() const { 420 if (IsValid()) { 421 if (auto type_system_sp = GetTypeSystem()) 422 return type_system_sp->GetFunctionArgumentCount(m_type); 423 } 424 return -1; 425 } 426 427 CompilerType CompilerType::GetFunctionArgumentTypeAtIndex(size_t idx) const { 428 if (IsValid()) { 429 if (auto type_system_sp = GetTypeSystem()) 430 return type_system_sp->GetFunctionArgumentTypeAtIndex(m_type, idx); 431 } 432 return CompilerType(); 433 } 434 435 CompilerType CompilerType::GetFunctionReturnType() const { 436 if (IsValid()) { 437 if (auto type_system_sp = GetTypeSystem()) 438 return type_system_sp->GetFunctionReturnType(m_type); 439 } 440 return CompilerType(); 441 } 442 443 size_t CompilerType::GetNumMemberFunctions() const { 444 if (IsValid()) { 445 if (auto type_system_sp = GetTypeSystem()) 446 return type_system_sp->GetNumMemberFunctions(m_type); 447 } 448 return 0; 449 } 450 451 TypeMemberFunctionImpl CompilerType::GetMemberFunctionAtIndex(size_t idx) { 452 if (IsValid()) { 453 if (auto type_system_sp = GetTypeSystem()) 454 return type_system_sp->GetMemberFunctionAtIndex(m_type, idx); 455 } 456 return TypeMemberFunctionImpl(); 457 } 458 459 CompilerType CompilerType::GetNonReferenceType() const { 460 if (IsValid()) 461 if (auto type_system_sp = GetTypeSystem()) 462 return type_system_sp->GetNonReferenceType(m_type); 463 return CompilerType(); 464 } 465 466 CompilerType CompilerType::GetPointeeType() const { 467 if (IsValid()) { 468 if (auto type_system_sp = GetTypeSystem()) 469 return type_system_sp->GetPointeeType(m_type); 470 } 471 return CompilerType(); 472 } 473 474 CompilerType CompilerType::GetPointerType() const { 475 if (IsValid()) { 476 if (auto type_system_sp = GetTypeSystem()) 477 return type_system_sp->GetPointerType(m_type); 478 } 479 return CompilerType(); 480 } 481 482 CompilerType CompilerType::GetLValueReferenceType() const { 483 if (IsValid()) 484 if (auto type_system_sp = GetTypeSystem()) 485 return type_system_sp->GetLValueReferenceType(m_type); 486 return CompilerType(); 487 } 488 489 CompilerType CompilerType::GetRValueReferenceType() const { 490 if (IsValid()) 491 if (auto type_system_sp = GetTypeSystem()) 492 return type_system_sp->GetRValueReferenceType(m_type); 493 return CompilerType(); 494 } 495 496 CompilerType CompilerType::GetAtomicType() const { 497 if (IsValid()) 498 if (auto type_system_sp = GetTypeSystem()) 499 return type_system_sp->GetAtomicType(m_type); 500 return CompilerType(); 501 } 502 503 CompilerType CompilerType::AddConstModifier() const { 504 if (IsValid()) 505 if (auto type_system_sp = GetTypeSystem()) 506 return type_system_sp->AddConstModifier(m_type); 507 return CompilerType(); 508 } 509 510 CompilerType CompilerType::AddVolatileModifier() const { 511 if (IsValid()) 512 if (auto type_system_sp = GetTypeSystem()) 513 return type_system_sp->AddVolatileModifier(m_type); 514 return CompilerType(); 515 } 516 517 CompilerType CompilerType::AddRestrictModifier() const { 518 if (IsValid()) 519 if (auto type_system_sp = GetTypeSystem()) 520 return type_system_sp->AddRestrictModifier(m_type); 521 return CompilerType(); 522 } 523 524 CompilerType CompilerType::CreateTypedef(const char *name, 525 const CompilerDeclContext &decl_ctx, 526 uint32_t payload) const { 527 if (IsValid()) 528 if (auto type_system_sp = GetTypeSystem()) 529 return type_system_sp->CreateTypedef(m_type, name, decl_ctx, payload); 530 return CompilerType(); 531 } 532 533 CompilerType CompilerType::GetTypedefedType() const { 534 if (IsValid()) 535 if (auto type_system_sp = GetTypeSystem()) 536 return type_system_sp->GetTypedefedType(m_type); 537 return CompilerType(); 538 } 539 540 // Create related types using the current type's AST 541 542 CompilerType 543 CompilerType::GetBasicTypeFromAST(lldb::BasicType basic_type) const { 544 if (IsValid()) 545 if (auto type_system_sp = GetTypeSystem()) 546 return type_system_sp->GetBasicTypeFromAST(basic_type); 547 return CompilerType(); 548 } 549 // Exploring the type 550 551 std::optional<uint64_t> 552 CompilerType::GetBitSize(ExecutionContextScope *exe_scope) const { 553 if (IsValid()) 554 if (auto type_system_sp = GetTypeSystem()) 555 return type_system_sp->GetBitSize(m_type, exe_scope); 556 return {}; 557 } 558 559 std::optional<uint64_t> 560 CompilerType::GetByteSize(ExecutionContextScope *exe_scope) const { 561 if (std::optional<uint64_t> bit_size = GetBitSize(exe_scope)) 562 return (*bit_size + 7) / 8; 563 return {}; 564 } 565 566 std::optional<size_t> 567 CompilerType::GetTypeBitAlign(ExecutionContextScope *exe_scope) const { 568 if (IsValid()) 569 if (auto type_system_sp = GetTypeSystem()) 570 return type_system_sp->GetTypeBitAlign(m_type, exe_scope); 571 return {}; 572 } 573 574 lldb::Encoding CompilerType::GetEncoding(uint64_t &count) const { 575 if (IsValid()) 576 if (auto type_system_sp = GetTypeSystem()) 577 return type_system_sp->GetEncoding(m_type, count); 578 return lldb::eEncodingInvalid; 579 } 580 581 lldb::Format CompilerType::GetFormat() const { 582 if (IsValid()) 583 if (auto type_system_sp = GetTypeSystem()) 584 return type_system_sp->GetFormat(m_type); 585 return lldb::eFormatDefault; 586 } 587 588 uint32_t CompilerType::GetNumChildren(bool omit_empty_base_classes, 589 const ExecutionContext *exe_ctx) const { 590 if (IsValid()) 591 if (auto type_system_sp = GetTypeSystem()) 592 return type_system_sp->GetNumChildren(m_type, omit_empty_base_classes, 593 exe_ctx); 594 return 0; 595 } 596 597 lldb::BasicType CompilerType::GetBasicTypeEnumeration() const { 598 if (IsValid()) 599 if (auto type_system_sp = GetTypeSystem()) 600 return type_system_sp->GetBasicTypeEnumeration(m_type); 601 return eBasicTypeInvalid; 602 } 603 604 void CompilerType::ForEachEnumerator( 605 std::function<bool(const CompilerType &integer_type, 606 ConstString name, 607 const llvm::APSInt &value)> const &callback) const { 608 if (IsValid()) 609 if (auto type_system_sp = GetTypeSystem()) 610 return type_system_sp->ForEachEnumerator(m_type, callback); 611 } 612 613 uint32_t CompilerType::GetNumFields() const { 614 if (IsValid()) 615 if (auto type_system_sp = GetTypeSystem()) 616 return type_system_sp->GetNumFields(m_type); 617 return 0; 618 } 619 620 CompilerType CompilerType::GetFieldAtIndex(size_t idx, std::string &name, 621 uint64_t *bit_offset_ptr, 622 uint32_t *bitfield_bit_size_ptr, 623 bool *is_bitfield_ptr) const { 624 if (IsValid()) 625 if (auto type_system_sp = GetTypeSystem()) 626 return type_system_sp->GetFieldAtIndex(m_type, idx, name, bit_offset_ptr, 627 bitfield_bit_size_ptr, is_bitfield_ptr); 628 return CompilerType(); 629 } 630 631 uint32_t CompilerType::GetNumDirectBaseClasses() const { 632 if (IsValid()) 633 if (auto type_system_sp = GetTypeSystem()) 634 return type_system_sp->GetNumDirectBaseClasses(m_type); 635 return 0; 636 } 637 638 uint32_t CompilerType::GetNumVirtualBaseClasses() const { 639 if (IsValid()) 640 if (auto type_system_sp = GetTypeSystem()) 641 return type_system_sp->GetNumVirtualBaseClasses(m_type); 642 return 0; 643 } 644 645 CompilerType 646 CompilerType::GetDirectBaseClassAtIndex(size_t idx, 647 uint32_t *bit_offset_ptr) const { 648 if (IsValid()) 649 if (auto type_system_sp = GetTypeSystem()) 650 return type_system_sp->GetDirectBaseClassAtIndex(m_type, idx, 651 bit_offset_ptr); 652 return CompilerType(); 653 } 654 655 CompilerType 656 CompilerType::GetVirtualBaseClassAtIndex(size_t idx, 657 uint32_t *bit_offset_ptr) const { 658 if (IsValid()) 659 if (auto type_system_sp = GetTypeSystem()) 660 return type_system_sp->GetVirtualBaseClassAtIndex(m_type, idx, 661 bit_offset_ptr); 662 return CompilerType(); 663 } 664 665 uint32_t CompilerType::GetIndexOfFieldWithName( 666 const char *name, CompilerType *field_compiler_type_ptr, 667 uint64_t *bit_offset_ptr, uint32_t *bitfield_bit_size_ptr, 668 bool *is_bitfield_ptr) const { 669 unsigned count = GetNumFields(); 670 std::string field_name; 671 for (unsigned index = 0; index < count; index++) { 672 CompilerType field_compiler_type( 673 GetFieldAtIndex(index, field_name, bit_offset_ptr, 674 bitfield_bit_size_ptr, is_bitfield_ptr)); 675 if (strcmp(field_name.c_str(), name) == 0) { 676 if (field_compiler_type_ptr) 677 *field_compiler_type_ptr = field_compiler_type; 678 return index; 679 } 680 } 681 return UINT32_MAX; 682 } 683 684 CompilerType CompilerType::GetChildCompilerTypeAtIndex( 685 ExecutionContext *exe_ctx, size_t idx, bool transparent_pointers, 686 bool omit_empty_base_classes, bool ignore_array_bounds, 687 std::string &child_name, uint32_t &child_byte_size, 688 int32_t &child_byte_offset, uint32_t &child_bitfield_bit_size, 689 uint32_t &child_bitfield_bit_offset, bool &child_is_base_class, 690 bool &child_is_deref_of_parent, ValueObject *valobj, 691 uint64_t &language_flags) const { 692 if (IsValid()) 693 if (auto type_system_sp = GetTypeSystem()) 694 return type_system_sp->GetChildCompilerTypeAtIndex( 695 m_type, exe_ctx, idx, transparent_pointers, omit_empty_base_classes, 696 ignore_array_bounds, child_name, child_byte_size, child_byte_offset, 697 child_bitfield_bit_size, child_bitfield_bit_offset, 698 child_is_base_class, child_is_deref_of_parent, valobj, 699 language_flags); 700 return CompilerType(); 701 } 702 703 // Look for a child member (doesn't include base classes, but it does include 704 // their members) in the type hierarchy. Returns an index path into 705 // "clang_type" on how to reach the appropriate member. 706 // 707 // class A 708 // { 709 // public: 710 // int m_a; 711 // int m_b; 712 // }; 713 // 714 // class B 715 // { 716 // }; 717 // 718 // class C : 719 // public B, 720 // public A 721 // { 722 // }; 723 // 724 // If we have a clang type that describes "class C", and we wanted to looked 725 // "m_b" in it: 726 // 727 // With omit_empty_base_classes == false we would get an integer array back 728 // with: { 1, 1 } The first index 1 is the child index for "class A" within 729 // class C The second index 1 is the child index for "m_b" within class A 730 // 731 // With omit_empty_base_classes == true we would get an integer array back 732 // with: { 0, 1 } The first index 0 is the child index for "class A" within 733 // class C (since class B doesn't have any members it doesn't count) The second 734 // index 1 is the child index for "m_b" within class A 735 736 size_t CompilerType::GetIndexOfChildMemberWithName( 737 const char *name, bool omit_empty_base_classes, 738 std::vector<uint32_t> &child_indexes) const { 739 if (IsValid() && name && name[0]) { 740 if (auto type_system_sp = GetTypeSystem()) 741 return type_system_sp->GetIndexOfChildMemberWithName( 742 m_type, name, omit_empty_base_classes, child_indexes); 743 } 744 return 0; 745 } 746 747 size_t CompilerType::GetNumTemplateArguments(bool expand_pack) const { 748 if (IsValid()) { 749 if (auto type_system_sp = GetTypeSystem()) 750 return type_system_sp->GetNumTemplateArguments(m_type, expand_pack); 751 } 752 return 0; 753 } 754 755 TemplateArgumentKind 756 CompilerType::GetTemplateArgumentKind(size_t idx, bool expand_pack) const { 757 if (IsValid()) 758 if (auto type_system_sp = GetTypeSystem()) 759 return type_system_sp->GetTemplateArgumentKind(m_type, idx, expand_pack); 760 return eTemplateArgumentKindNull; 761 } 762 763 CompilerType CompilerType::GetTypeTemplateArgument(size_t idx, 764 bool expand_pack) const { 765 if (IsValid()) { 766 if (auto type_system_sp = GetTypeSystem()) 767 return type_system_sp->GetTypeTemplateArgument(m_type, idx, expand_pack); 768 } 769 return CompilerType(); 770 } 771 772 std::optional<CompilerType::IntegralTemplateArgument> 773 CompilerType::GetIntegralTemplateArgument(size_t idx, bool expand_pack) const { 774 if (IsValid()) 775 if (auto type_system_sp = GetTypeSystem()) 776 return type_system_sp->GetIntegralTemplateArgument(m_type, idx, expand_pack); 777 return std::nullopt; 778 } 779 780 CompilerType CompilerType::GetTypeForFormatters() const { 781 if (IsValid()) 782 if (auto type_system_sp = GetTypeSystem()) 783 return type_system_sp->GetTypeForFormatters(m_type); 784 return CompilerType(); 785 } 786 787 LazyBool CompilerType::ShouldPrintAsOneLiner(ValueObject *valobj) const { 788 if (IsValid()) 789 if (auto type_system_sp = GetTypeSystem()) 790 return type_system_sp->ShouldPrintAsOneLiner(m_type, valobj); 791 return eLazyBoolCalculate; 792 } 793 794 bool CompilerType::IsMeaninglessWithoutDynamicResolution() const { 795 if (IsValid()) 796 if (auto type_system_sp = GetTypeSystem()) 797 return type_system_sp->IsMeaninglessWithoutDynamicResolution(m_type); 798 return false; 799 } 800 801 // Get the index of the child of "clang_type" whose name matches. This function 802 // doesn't descend into the children, but only looks one level deep and name 803 // matches can include base class names. 804 805 uint32_t 806 CompilerType::GetIndexOfChildWithName(const char *name, 807 bool omit_empty_base_classes) const { 808 if (IsValid() && name && name[0]) { 809 if (auto type_system_sp = GetTypeSystem()) 810 return type_system_sp->GetIndexOfChildWithName(m_type, name, 811 omit_empty_base_classes); 812 } 813 return UINT32_MAX; 814 } 815 816 // Dumping types 817 818 void CompilerType::DumpValue(ExecutionContext *exe_ctx, Stream *s, 819 lldb::Format format, const DataExtractor &data, 820 lldb::offset_t data_byte_offset, 821 size_t data_byte_size, uint32_t bitfield_bit_size, 822 uint32_t bitfield_bit_offset, bool show_types, 823 bool show_summary, bool verbose, uint32_t depth) { 824 if (!IsValid()) 825 if (auto type_system_sp = GetTypeSystem()) 826 type_system_sp->DumpValue(m_type, exe_ctx, s, format, data, 827 data_byte_offset, data_byte_size, 828 bitfield_bit_size, bitfield_bit_offset, 829 show_types, show_summary, verbose, depth); 830 } 831 832 bool CompilerType::DumpTypeValue(Stream *s, lldb::Format format, 833 const DataExtractor &data, 834 lldb::offset_t byte_offset, size_t byte_size, 835 uint32_t bitfield_bit_size, 836 uint32_t bitfield_bit_offset, 837 ExecutionContextScope *exe_scope) { 838 if (IsValid()) 839 if (auto type_system_sp = GetTypeSystem()) 840 return type_system_sp->DumpTypeValue(m_type, s, format, data, byte_offset, 841 byte_size, bitfield_bit_size, 842 bitfield_bit_offset, exe_scope); 843 return false; 844 } 845 846 void CompilerType::DumpSummary(ExecutionContext *exe_ctx, Stream *s, 847 const DataExtractor &data, 848 lldb::offset_t data_byte_offset, 849 size_t data_byte_size) { 850 if (IsValid()) 851 if (auto type_system_sp = GetTypeSystem()) 852 type_system_sp->DumpSummary(m_type, exe_ctx, s, data, data_byte_offset, 853 data_byte_size); 854 } 855 856 void CompilerType::DumpTypeDescription(lldb::DescriptionLevel level) const { 857 if (IsValid()) 858 if (auto type_system_sp = GetTypeSystem()) 859 type_system_sp->DumpTypeDescription(m_type, level); 860 } 861 862 void CompilerType::DumpTypeDescription(Stream *s, 863 lldb::DescriptionLevel level) const { 864 if (IsValid()) 865 if (auto type_system_sp = GetTypeSystem()) 866 type_system_sp->DumpTypeDescription(m_type, s, level); 867 } 868 869 #ifndef NDEBUG 870 LLVM_DUMP_METHOD void CompilerType::dump() const { 871 if (IsValid()) 872 if (auto type_system_sp = GetTypeSystem()) 873 return type_system_sp->dump(m_type); 874 llvm::errs() << "<invalid>\n"; 875 } 876 #endif 877 878 bool CompilerType::GetValueAsScalar(const lldb_private::DataExtractor &data, 879 lldb::offset_t data_byte_offset, 880 size_t data_byte_size, Scalar &value, 881 ExecutionContextScope *exe_scope) const { 882 if (!IsValid()) 883 return false; 884 885 if (IsAggregateType()) { 886 return false; // Aggregate types don't have scalar values 887 } else { 888 uint64_t count = 0; 889 lldb::Encoding encoding = GetEncoding(count); 890 891 if (encoding == lldb::eEncodingInvalid || count != 1) 892 return false; 893 894 std::optional<uint64_t> byte_size = GetByteSize(exe_scope); 895 if (!byte_size) 896 return false; 897 lldb::offset_t offset = data_byte_offset; 898 switch (encoding) { 899 case lldb::eEncodingInvalid: 900 break; 901 case lldb::eEncodingVector: 902 break; 903 case lldb::eEncodingUint: 904 if (*byte_size <= sizeof(unsigned long long)) { 905 uint64_t uval64 = data.GetMaxU64(&offset, *byte_size); 906 if (*byte_size <= sizeof(unsigned int)) { 907 value = (unsigned int)uval64; 908 return true; 909 } else if (*byte_size <= sizeof(unsigned long)) { 910 value = (unsigned long)uval64; 911 return true; 912 } else if (*byte_size <= sizeof(unsigned long long)) { 913 value = (unsigned long long)uval64; 914 return true; 915 } else 916 value.Clear(); 917 } 918 break; 919 920 case lldb::eEncodingSint: 921 if (*byte_size <= sizeof(long long)) { 922 int64_t sval64 = data.GetMaxS64(&offset, *byte_size); 923 if (*byte_size <= sizeof(int)) { 924 value = (int)sval64; 925 return true; 926 } else if (*byte_size <= sizeof(long)) { 927 value = (long)sval64; 928 return true; 929 } else if (*byte_size <= sizeof(long long)) { 930 value = (long long)sval64; 931 return true; 932 } else 933 value.Clear(); 934 } 935 break; 936 937 case lldb::eEncodingIEEE754: 938 if (*byte_size <= sizeof(long double)) { 939 uint32_t u32; 940 uint64_t u64; 941 if (*byte_size == sizeof(float)) { 942 if (sizeof(float) == sizeof(uint32_t)) { 943 u32 = data.GetU32(&offset); 944 value = *((float *)&u32); 945 return true; 946 } else if (sizeof(float) == sizeof(uint64_t)) { 947 u64 = data.GetU64(&offset); 948 value = *((float *)&u64); 949 return true; 950 } 951 } else if (*byte_size == sizeof(double)) { 952 if (sizeof(double) == sizeof(uint32_t)) { 953 u32 = data.GetU32(&offset); 954 value = *((double *)&u32); 955 return true; 956 } else if (sizeof(double) == sizeof(uint64_t)) { 957 u64 = data.GetU64(&offset); 958 value = *((double *)&u64); 959 return true; 960 } 961 } else if (*byte_size == sizeof(long double)) { 962 if (sizeof(long double) == sizeof(uint32_t)) { 963 u32 = data.GetU32(&offset); 964 value = *((long double *)&u32); 965 return true; 966 } else if (sizeof(long double) == sizeof(uint64_t)) { 967 u64 = data.GetU64(&offset); 968 value = *((long double *)&u64); 969 return true; 970 } 971 } 972 } 973 break; 974 } 975 } 976 return false; 977 } 978 979 #ifndef NDEBUG 980 bool CompilerType::Verify() const { 981 if (!IsValid()) 982 return true; 983 if (auto type_system_sp = GetTypeSystem()) 984 return type_system_sp->Verify(m_type); 985 return true; 986 } 987 #endif 988 989 CompilerType::TypeSystemSPWrapper CompilerType::GetTypeSystem() const { 990 return {m_type_system.lock()}; 991 } 992 993 bool CompilerType::TypeSystemSPWrapper::operator==( 994 const CompilerType::TypeSystemSPWrapper &other) const { 995 if (!m_typesystem_sp && !other.m_typesystem_sp) 996 return true; 997 if (m_typesystem_sp && other.m_typesystem_sp) 998 return m_typesystem_sp.get() == other.m_typesystem_sp.get(); 999 return false; 1000 } 1001 1002 TypeSystem *CompilerType::TypeSystemSPWrapper::operator->() const { 1003 assert(m_typesystem_sp); 1004 return m_typesystem_sp.get(); 1005 } 1006 1007 bool lldb_private::operator==(const lldb_private::CompilerType &lhs, 1008 const lldb_private::CompilerType &rhs) { 1009 return lhs.GetTypeSystem() == rhs.GetTypeSystem() && 1010 lhs.GetOpaqueQualType() == rhs.GetOpaqueQualType(); 1011 } 1012 1013 bool lldb_private::operator!=(const lldb_private::CompilerType &lhs, 1014 const lldb_private::CompilerType &rhs) { 1015 return !(lhs == rhs); 1016 } 1017