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C++: Introduce caches to Clone* classes

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Done-with: Erik Verbruggen <erik.verbruggen@digia.com>
Task-number: QTCREATORBUG-8747

Change-Id: I7cb694f8180c6aa932b07066d98d095340111324
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Reviewed-by: xSacha
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
This commit is contained in:
Nikolai Kosjar
2013-07-09 13:43:43 +02:00
parent 2a74ec4ffd
commit 20f3502754
3 changed files with 33 additions and 1 deletions
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20
src/libs/3rdparty/cplusplus/Templates.cpp vendored
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@@ -39,12 +39,18 @@ CloneType::CloneType(Clone *clone)
FullySpecifiedType CloneType::cloneType(const FullySpecifiedType &type, Subst *subst)
{
TypeSubstPair typeSubstPair = std::make_pair(type, subst);
if (_cache.find(typeSubstPair) != _cache.end())
return _cache[typeSubstPair];
std::swap(_subst, subst);
FullySpecifiedType ty(type);
std::swap(_type, ty);
accept(_type.type());
std::swap(_type, ty);
std::swap(_subst, subst);
_cache[typeSubstPair] = ty;
return ty;
}
@@ -179,13 +185,22 @@ Symbol *CloneSymbol::cloneSymbol(Symbol *symbol, Subst *subst)
if (! symbol)
return 0;
SymbolSubstPair symbolSubstPair = std::make_pair(symbol, subst);
if (_cache.find(symbolSubstPair) != _cache.end()) {
Symbol *cachedSymbol = _cache[symbolSubstPair];
if (cachedSymbol->scope() == symbol->scope())
return cachedSymbol;
}
Symbol *r = 0;
std::swap(_subst, subst);
std::swap(_symbol, r);
accept(symbol);
std::swap(_symbol, r);
std::swap(_subst, subst);
CPP_CHECK(r != 0);
_cache[symbolSubstPair] = r;
return r;
}
@@ -394,6 +409,10 @@ const Name *CloneName::cloneName(const Name *name, Subst *subst)
if (! name)
return 0;
NameSubstPair nameSubstPair = std::make_pair(name, subst);
if (_cache.find(nameSubstPair) != _cache.end())
return _cache[nameSubstPair];
const Name *r = 0;
std::swap(_subst, subst);
std::swap(_name, r);
@@ -401,6 +420,7 @@ const Name *CloneName::cloneName(const Name *name, Subst *subst)
std::swap(_name, r);
std::swap(_subst, subst);
CPP_CHECK(r != 0);
_cache[nameSubstPair] = r;
return r;
}