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Optimize IsWrapper

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The getNameAsString interface causes a lot of temporary allocations.
The analysis if a decl is a cling-style wrapper can work only on a
simple declarations on the global scope.

This patch filters out complex declarations (eg in namespaces) and
checks only the identifier content.

The patch reduces the memory footprint difference shown in root-project/root#3012.
This commit is contained in:
Vassil Vassilev 2019-03-25 17:39:32 +02:00 committed by SFT
parent b639a0d53c
commit eab5eca3ea
1 changed files with 3 additions and 2 deletions
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5
lib/Utils/AST.cpp
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@ -67,9 +67,10 @@ namespace utils {
bool Analyze::IsWrapper(const FunctionDecl* ND) {
if (!ND)
return false;
if (!ND->getDeclName().isIdentifier())
return false;
return StringRef(ND->getNameAsString())
.startswith(Synthesize::UniquePrefix);
return ND->getName().startswith(Synthesize::UniquePrefix);
}
void Analyze::maybeMangleDeclName(const GlobalDecl& GD,