diff options
Diffstat (limited to 'include/lldb/Symbol/TypeSystem.h')
| -rw-r--r-- | include/lldb/Symbol/TypeSystem.h | 51 |
1 files changed, 34 insertions, 17 deletions
diff --git a/include/lldb/Symbol/TypeSystem.h b/include/lldb/Symbol/TypeSystem.h index 4bef2a4446eb..07295c244a5d 100644 --- a/include/lldb/Symbol/TypeSystem.h +++ b/include/lldb/Symbol/TypeSystem.h @@ -14,8 +14,11 @@ #include <mutex> #include <string> +#include "llvm/ADT/APFloat.h" #include "llvm/ADT/APSInt.h" +#include "llvm/ADT/SmallBitVector.h" #include "llvm/Support/Casting.h" +#include "llvm/Support/Error.h" #include "lldb/Core/PluginInterface.h" #include "lldb/Expression/Expression.h" @@ -29,7 +32,24 @@ class PDBASTParser; namespace lldb_private { -// Interface for representing the Type Systems in different languages. +/// A SmallBitVector that represents a set of source languages (\p +/// lldb::LanguageType). Each lldb::LanguageType is represented by +/// the bit with the position of its enumerator. The largest +/// LanguageType is < 64, so this is space-efficient and on 64-bit +/// architectures a LanguageSet can be completely stack-allocated. +struct LanguageSet { + llvm::SmallBitVector bitvector; + LanguageSet(); + + /// If the set contains a single language only, return it. + llvm::Optional<lldb::LanguageType> GetSingularLanguage(); + void Insert(lldb::LanguageType language); + bool Empty() const; + size_t Size() const; + bool operator[](unsigned i) const; +}; + +/// Interface for representing the Type Systems in different languages. class TypeSystem : public PluginInterface { public: // Intrusive type system that allows us to use llvm casting. @@ -107,6 +127,8 @@ public: virtual CompilerType DeclGetFunctionArgumentType(void *opaque_decl, size_t arg_idx); + virtual CompilerType GetTypeForDecl(void *opaque_decl) = 0; + // CompilerDeclContext functions virtual std::vector<CompilerDecl> @@ -255,6 +277,8 @@ public: // Exploring the type + virtual const llvm::fltSemantics &GetFloatTypeSemantics(size_t byte_size) = 0; + virtual llvm::Optional<uint64_t> GetBitSize(lldb::opaque_compiler_type_t type, ExecutionContextScope *exe_scope) = 0; @@ -375,12 +399,6 @@ public: lldb::offset_t data_offset, size_t data_byte_size) = 0; - // Converts "s" to a floating point value and place resulting floating point - // bytes in the "dst" buffer. - virtual size_t ConvertStringToFloatValue(lldb::opaque_compiler_type_t type, - const char *s, uint8_t *dst, - size_t dst_size) = 0; - // TODO: Determine if these methods should move to ClangASTContext. virtual bool IsPointerOrReferenceType(lldb::opaque_compiler_type_t type, @@ -391,7 +409,9 @@ public: virtual bool IsCStringType(lldb::opaque_compiler_type_t type, uint32_t &length) = 0; - virtual size_t GetTypeBitAlign(lldb::opaque_compiler_type_t type) = 0; + virtual llvm::Optional<size_t> + GetTypeBitAlign(lldb::opaque_compiler_type_t type, + ExecutionContextScope *exe_scope) = 0; virtual CompilerType GetBasicTypeFromAST(lldb::BasicType basic_type) = 0; @@ -491,18 +511,15 @@ public: // callback to keep iterating, false to stop iterating. void ForEach(std::function<bool(TypeSystem *)> const &callback); - TypeSystem *GetTypeSystemForLanguage(lldb::LanguageType language, - Module *module, bool can_create); + llvm::Expected<TypeSystem &> + GetTypeSystemForLanguage(lldb::LanguageType language, Module *module, + bool can_create); - TypeSystem *GetTypeSystemForLanguage(lldb::LanguageType language, - Target *target, bool can_create); + llvm::Expected<TypeSystem &> + GetTypeSystemForLanguage(lldb::LanguageType language, Target *target, + bool can_create); protected: - // This function does not take the map mutex, and should only be called from - // functions that do take the mutex. - void AddToMap(lldb::LanguageType language, - lldb::TypeSystemSP const &type_system_sp); - typedef std::map<lldb::LanguageType, lldb::TypeSystemSP> collection; mutable std::mutex m_mutex; ///< A mutex to keep this object happy in ///multi-threaded environments. |