clang 17.0.0git
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
12using namespace clang;
13using 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
25const Expr *SourceInfo::asExpr() const {
26 if (auto *S = Source.dyn_cast<const Stmt *>())
27 return dyn_cast<Expr>(S);
28 return nullptr;
29}
30
31const Expr *SourceMapper::getExpr(const Function *F, CodePtr PC) const {
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}
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:83
This represents one expression.
Definition: Expr.h:110
Encodes a location in the source.
Stmt - This represents one statement.
Definition: Stmt.h:72
Pointer into the code segment.
Definition: Source.h:26
Bytecode function.
Definition: Function.h:74
const Decl * asDecl() const
Definition: Source.h:79
const Expr * asExpr() const
Definition: Source.cpp:25
const Stmt * asStmt() const
Definition: Source.h:78
SourceLocation getLoc() const
Definition: Source.cpp:15
virtual SourceInfo getSource(const Function *F, CodePtr PC) const =0
Returns source information for a given PC in a function.
SourceLocation getLocation(const Function *F, CodePtr PC) const
Returns the location from which an opcode originates.
Definition: Source.cpp:37
const Expr * getExpr(const Function *F, CodePtr PC) const
Returns the expression if an opcode belongs to one, null otherwise.
Definition: Source.cpp:31