aboutsummaryrefslogtreecommitdiffstats
path: root/lib/AST/Interp/Frame.h
blob: b9a0ea9412f838c23db8de837353d37a36c3c41e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
//===--- Frame.h - Call frame for the VM and AST Walker ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Defines the base class of interpreter and evaluator stack frames.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_INTERP_FRAME_H
#define LLVM_CLANG_AST_INTERP_FRAME_H

#include "clang/Basic/SourceLocation.h"
#include "llvm/Support/raw_ostream.h"

namespace clang {
class FunctionDecl;

namespace interp {

/// Base class for stack frames, shared between VM and walker.
class Frame {
public:
  virtual ~Frame();

  /// Generates a human-readable description of the call site.
  virtual void describe(llvm::raw_ostream &OS) = 0;

  /// Returns a pointer to the caller frame.
  virtual Frame *getCaller() const = 0;

  /// Returns the location of the call site.
  virtual SourceLocation getCallLocation() const = 0;

  /// Returns the called function's declaration.
  virtual const FunctionDecl *getCallee() const = 0;
};

} // namespace interp
} // namespace clang

#endif