| |
| |
| #ifndef LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H |
| #define LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H |
| |
| #include "Function.h" |
| #include "Primitives.h" |
| #include "clang/AST/APValue.h" |
| |
| namespace clang { |
| class ASTContext; |
| namespace interp { |
| |
| class FunctionPointer final { |
| private: |
| const Function *Func; |
| |
| public: |
| FunctionPointer() : Func(nullptr) {} |
| FunctionPointer(const Function *Func) : Func(Func) { assert(Func); } |
| |
| const Function *getFunction() const { return Func; } |
| |
| APValue toAPValue() const { |
| if (!Func) |
| return APValue(static_cast<Expr *>(nullptr), CharUnits::Zero(), {}, |
| /*OnePastTheEnd=*/false, /*IsNull=*/true); |
| |
| return APValue(Func->getDecl(), CharUnits::Zero(), {}, |
| /*OnePastTheEnd=*/false, /*IsNull=*/false); |
| } |
| |
| void print(llvm::raw_ostream &OS) const { |
| OS << "FnPtr("; |
| if (Func) |
| OS << Func->getName(); |
| else |
| OS << "nullptr"; |
| OS << ")"; |
| } |
| |
| std::string toDiagnosticString(const ASTContext &Ctx) const { |
| if (!Func) |
| return "nullptr"; |
| |
| return toAPValue().getAsString(Ctx, Func->getDecl()->getType()); |
| } |
| |
| ComparisonCategoryResult compare(const FunctionPointer &RHS) const { |
| if (Func == RHS.Func) |
| return ComparisonCategoryResult::Equal; |
| return ComparisonCategoryResult::Unordered; |
| } |
| }; |
| |
| inline llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, |
| FunctionPointer FP) { |
| FP.print(OS); |
| return OS; |
| } |
| |
| } // namespace interp |
| } // namespace clang |
| |
| #endif |