clang  10.0.0svn
Source.cpp
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1 //===--- Source.cpp - Source expression tracking ----------------*- 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 #include "Source.h"
10 #include "clang/AST/Expr.h"
11 
12 using namespace clang;
13 using namespace clang::interp;
14 
16  if (const Expr *E = asExpr())
17  return E->getExprLoc();
18  if (const Stmt *S = asStmt())
19  return S->getBeginLoc();
20  if (const Decl *D = asDecl())
21  return D->getBeginLoc();
22  return SourceLocation();
23 }
24 
25 const Expr *SourceInfo::asExpr() const {
26  if (auto *S = Source.dyn_cast<const Stmt *>())
27  return dyn_cast<Expr>(S);
28  return nullptr;
29 }
30 
32  if (const Expr *E = getSource(F, PC).asExpr())
33  return E;
34  llvm::report_fatal_error("missing source expression");
35 }
36 
38  return getSource(F, PC).getLoc();
39 }
Pointer into the code segment.
Definition: Source.h:25
Stmt - This represents one statement.
Definition: Stmt.h:66
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:88
SourceLocation getLoc() const
Definition: Source.cpp:15
const Stmt * asStmt() const
Definition: Source.h:89
This represents one expression.
Definition: Expr.h:108
const Decl * asDecl() const
Definition: Source.h:90
Encodes a location in the source.
Bytecode function.
Definition: Function.h:59
Dataflow Directional Tag Classes.
const Expr * getExpr(Function *F, CodePtr PC) const
Returns the expression if an opcode belongs to one, null otherwise.
Definition: Source.cpp:31
SourceLocation getLocation(Function *F, CodePtr PC) const
Returns the location from which an opcode originates.
Definition: Source.cpp:37
const Expr * asExpr() const
Definition: Source.cpp:25