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StringMap: Replace faux-copyability with faux-movability, which is sufficient.

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This behavior was added to support StringMaps of StringMaps, default +
move construction are sufficient for this.

Real move construction support coming soon (& probably copy construction
too).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208360 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-05-08 21:52:26 +00:00
parent b0439e6d6a
commit 06eb84e21a
1 changed files with 14 additions and 16 deletions
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30
include/llvm/ADT/StringMap.h
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@ -17,6 +17,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Allocator.h"
#include <cstring>
#include <utility>
namespace llvm {
template<typename ValueT>
@ -48,13 +49,11 @@ protected:
unsigned NumTombstones;
unsigned ItemSize;
protected:
explicit StringMapImpl(unsigned itemSize) : ItemSize(itemSize) {
// Initialize the map with zero buckets to allocation.
TheTable = nullptr;
NumBuckets = 0;
NumItems = 0;
NumTombstones = 0;
}
explicit StringMapImpl(unsigned itemSize)
: TheTable(nullptr),
// Initialize the map with zero buckets to allocation.
NumBuckets(0), NumItems(0), NumTombstones(0), ItemSize(itemSize) {}
StringMapImpl(unsigned InitSize, unsigned ItemSize);
void RehashTable();
@ -233,18 +232,17 @@ public:
: StringMapImpl(InitialSize, static_cast<unsigned>(sizeof(MapEntryTy))),
Allocator(A) {}
StringMap(const StringMap &RHS)
: StringMapImpl(static_cast<unsigned>(sizeof(MapEntryTy))) {
assert(RHS.empty() &&
"Copy ctor from non-empty stringmap not implemented yet!");
(void)RHS;
StringMap(StringMap &&RHS)
: StringMapImpl(static_cast<unsigned>(sizeof(MapEntryTy))) {
assert(RHS.empty());
}
void operator=(const StringMap &RHS) {
assert(RHS.empty() &&
"assignment from non-empty stringmap not implemented yet!");
(void)RHS;
StringMap &operator=(StringMap &&RHS) {
assert(RHS.empty());
clear();
return *this;
}
StringMap(const StringMap &RHS) LLVM_DELETED_FUNCTION;
void operator=(const StringMap &RHS) LLVM_DELETED_FUNCTION;
AllocatorTy &getAllocator() { return Allocator; }
const AllocatorTy &getAllocator() const { return Allocator; }