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DIBuilder: Create a getHeaderIterator() helper, NFC

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Extract this so it can be reused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226770 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-01-22 03:00:01 +00:00
parent ce93603b11
commit b5f4854fb4
1 changed files with 6 additions and 2 deletions
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8
include/llvm/IR/DebugInfo.h
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@ -190,15 +190,19 @@ public:
DIHeaderFieldIterator());
}
StringRef getHeaderField(unsigned Index) const {
DIHeaderFieldIterator getHeaderIterator(unsigned Index) const {
// Since callers expect an empty string for out-of-range accesses, we can't
// use std::advance() here.
for (DIHeaderFieldIterator I(getHeader()), E; I != E; ++I, --Index)
if (!Index)
return *I;
return I;
return StringRef();
}
StringRef getHeaderField(unsigned Index) const {
return *getHeaderIterator(Index);
}
template <class T> T getHeaderFieldAs(unsigned Index) const {
T Int;
if (getHeaderField(Index).getAsInteger(0, Int))