blob: e2e4f35043eec209e96e0b38a12d9a9ee04edbdb (
plain)
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
46
47
48
49
50
51
52
53
|
//= UninitializedValues.h - Finding uses of uninitialized values --*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines APIs for invoking and reported uninitialized values
// warnings.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_UNINIT_VALS_H
#define LLVM_CLANG_UNINIT_VALS_H
namespace clang {
class AnalysisContext;
class CFG;
class DeclContext;
class Expr;
class VarDecl;
class UninitVariablesHandler {
public:
UninitVariablesHandler() {}
virtual ~UninitVariablesHandler();
/// Called when the uninitialized variable is used at the given expression.
virtual void handleUseOfUninitVariable(const Expr *ex,
const VarDecl *vd,
bool isAlwaysUninit) {}
/// Called when the uninitialized variable analysis detects the
/// idiom 'int x = x'. All other uses of 'x' within the initializer
/// are handled by handleUseOfUninitVariable.
virtual void handleSelfInit(const VarDecl *vd) {}
};
struct UninitVariablesAnalysisStats {
unsigned NumVariablesAnalyzed;
unsigned NumBlockVisits;
};
void runUninitializedVariablesAnalysis(const DeclContext &dc, const CFG &cfg,
AnalysisContext &ac,
UninitVariablesHandler &handler,
UninitVariablesAnalysisStats &stats);
}
#endif
|
