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Reduce indentation with an early exit. 

llvm-svn: 193028
This commit is contained in:
Rafael Espindola 2013-10-19 02:28:17 +00:00
parent 3f9e4442c8
commit cb444fe739
1 changed files with 24 additions and 23 deletions
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47
clang/lib/AST/DeclTemplate.cpp
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@ -129,33 +129,34 @@ static void AdoptTemplateParameterList(TemplateParameterList *Params,
//===----------------------------------------------------------------------===//
RedeclarableTemplateDecl::CommonBase *RedeclarableTemplateDecl::getCommonPtr() const {
if (!Common) {
// Walk the previous-declaration chain until we either find a declaration
// with a common pointer or we run out of previous declarations.
SmallVector<const RedeclarableTemplateDecl *, 2> PrevDecls;
for (const RedeclarableTemplateDecl *Prev = getPreviousDecl(); Prev;
Prev = Prev->getPreviousDecl()) {
if (Prev->Common) {
Common = Prev->Common;
break;
}
PrevDecls.push_back(Prev);
if (Common)
return Common;
// Walk the previous-declaration chain until we either find a declaration
// with a common pointer or we run out of previous declarations.
SmallVector<const RedeclarableTemplateDecl *, 2> PrevDecls;
for (const RedeclarableTemplateDecl *Prev = getPreviousDecl(); Prev;
Prev = Prev->getPreviousDecl()) {
if (Prev->Common) {
Common = Prev->Common;
break;
}
// If we never found a common pointer, allocate one now.
if (!Common) {
// FIXME: If any of the declarations is from an AST file, we probably
// need an update record to add the common data.
Common = newCommon(getASTContext());
}
// Update any previous declarations we saw with the common pointer.
for (unsigned I = 0, N = PrevDecls.size(); I != N; ++I)
PrevDecls[I]->Common = Common;
PrevDecls.push_back(Prev);
}
// If we never found a common pointer, allocate one now.
if (!Common) {
// FIXME: If any of the declarations is from an AST file, we probably
// need an update record to add the common data.
Common = newCommon(getASTContext());
}
// Update any previous declarations we saw with the common pointer.
for (unsigned I = 0, N = PrevDecls.size(); I != N; ++I)
PrevDecls[I]->Common = Common;
return Common;
}