1//===--- Frame.h - Call frame for the VM and AST Walker ---------*- C++ -*-===// 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// Defines the base class of interpreter and evaluator stack frames. 10// 11//===----------------------------------------------------------------------===// 12 13#ifndef LLVM_CLANG_AST_INTERP_FRAME_H 14#define LLVM_CLANG_AST_INTERP_FRAME_H 15 16#include "clang/Basic/SourceLocation.h" 17#include "llvm/Support/raw_ostream.h" 18 19namespace clang { 20class FunctionDecl; 21 22namespace interp { 23 24/// Base class for stack frames, shared between VM and walker. 25class Frame { 26public: 27 virtual ~Frame(); 28 29 /// Generates a human-readable description of the call site. 30 virtual void describe(llvm::raw_ostream &OS) = 0; 31 32 /// Returns a pointer to the caller frame. 33 virtual Frame *getCaller() const = 0; 34 35 /// Returns the location of the call site. 36 virtual SourceLocation getCallLocation() const = 0; 37 38 /// Returns the called function's declaration. 39 virtual const FunctionDecl *getCallee() const = 0; 40}; 41 42} // namespace interp 43} // namespace clang 44 45#endif 46