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[demangler] Simplify SwapAndRestore 

The SwapAndRestore class is over engineered.  Nothing makes use of the
early restoration machinery.  Let's just remove that cognative burdon.

Reviewed By: ChuanqiXu

Differential Revision: https://reviews.llvm.org/D120673
This commit is contained in:
Nathan Sidwell 2022-02-28 12:04:37 -08:00
parent 3cdc1c155b
commit e5c98e22fb
2 changed files with 2 additions and 30 deletions
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16
libcxxabi/src/demangle/Utility.h
View File

@ -163,7 +163,6 @@ public:
template <class T> class SwapAndRestore {
T &Restore;
T OriginalValue;
bool ShouldRestore = true;
public:
SwapAndRestore(T &Restore_) : SwapAndRestore(Restore_, Restore_) {}
@ -172,20 +171,7 @@ public:
: Restore(Restore_), OriginalValue(Restore) {
Restore = std::move(NewVal);
}
~SwapAndRestore() {
if (ShouldRestore)
Restore = std::move(OriginalValue);
}
void shouldRestore(bool ShouldRestore_) { ShouldRestore = ShouldRestore_; }
void restoreNow(bool Force) {
if (!Force && !ShouldRestore)
return;
Restore = std::move(OriginalValue);
ShouldRestore = false;
}
~SwapAndRestore() { Restore = std::move(OriginalValue); }
SwapAndRestore(const SwapAndRestore &) = delete;
SwapAndRestore &operator=(const SwapAndRestore &) = delete;

16
llvm/include/llvm/Demangle/Utility.h
View File

@ -163,7 +163,6 @@ public:
template <class T> class SwapAndRestore {
T &Restore;
T OriginalValue;
bool ShouldRestore = true;
public:
SwapAndRestore(T &Restore_) : SwapAndRestore(Restore_, Restore_) {}
@ -172,20 +171,7 @@ public:
: Restore(Restore_), OriginalValue(Restore) {
Restore = std::move(NewVal);
}
~SwapAndRestore() {
if (ShouldRestore)
Restore = std::move(OriginalValue);
}
void shouldRestore(bool ShouldRestore_) { ShouldRestore = ShouldRestore_; }
void restoreNow(bool Force) {
if (!Force && !ShouldRestore)
return;
Restore = std::move(OriginalValue);
ShouldRestore = false;
}
~SwapAndRestore() { Restore = std::move(OriginalValue); }
SwapAndRestore(const SwapAndRestore &) = delete;
SwapAndRestore &operator=(const SwapAndRestore &) = delete;