maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Use SaveAndRestore in 'clang/Analysis/Support/SaveAndRestore.h' 

llvm-svn: 76800
This commit is contained in:
Ted Kremenek 2009-07-22 21:52:10 +00:00
parent d2d52d1906
commit b8725e2099
1 changed files with 1 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
clang/include/clang/Analysis/PathSensitive/GRExprEngineBuilders.h
View File

@ -15,32 +15,9 @@
#ifndef LLVM_CLANG_ANALYSIS_GREXPRENGINE_BUILDERS
#define LLVM_CLANG_ANALYSIS_GREXPRENGINE_BUILDERS
#include "clang/Analysis/PathSensitive/GRExprEngine.h"
#include "clang/Analysis/Support/SaveAndRestore.h"
namespace clang {
// SaveAndRestore - A utility class that uses RAII to save and restore
// the value of a variable.
template<typename T>
struct SaveAndRestore {
SaveAndRestore(T& x) : X(x), old_value(x) {}
~SaveAndRestore() { X = old_value; }
T get() { return old_value; }
private:
T& X;
T old_value;
};
// SaveOr - Similar to SaveAndRestore. Operates only on bools; the old
// value of a variable is saved, and during the dstor the old value is
// or'ed with the new value.
struct SaveOr {
SaveOr(bool& x) : X(x), old_value(x) { x = false; }
~SaveOr() { X |= old_value; }
private:
bool& X;
const bool old_value;
};
class GRStmtNodeBuilderRef {
GRExprEngine::NodeSet &Dst;