aboutsummaryrefslogtreecommitdiffstats
path: root/lib/AST/Interp/Frame.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/AST/Interp/Frame.h')
-rw-r--r--lib/AST/Interp/Frame.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/AST/Interp/Frame.h b/lib/AST/Interp/Frame.h
new file mode 100644
index 000000000000..b9a0ea9412f8
--- /dev/null
+++ b/lib/AST/Interp/Frame.h
@@ -0,0 +1,45 @@
+//===--- 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