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Teach Twine to support SmallString.

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Enable removing .str() member calls for these frequent cases. 

 http://reviews.llvm.org/D6372



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232465 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Yaron Keren
2015-03-17 09:51:17 +00:00
parent c57441f716
commit 0401f798d1
7 changed files with 78 additions and 64 deletions
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19
include/llvm/Option/ArgList.h
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@@ -11,7 +11,9 @@
#define LLVM_OPTION_ARGLIST_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Option/OptSpecifier.h"
#include "llvm/Option/Option.h"
#include <list>
@@ -277,16 +279,13 @@ public:
/// @name Arg Synthesis
/// @{
/// MakeArgString - Construct a constant string pointer whose
/// Construct a constant string pointer whose
/// lifetime will match that of the ArgList.
virtual const char *MakeArgString(StringRef Str) const = 0;
const char *MakeArgString(const char *Str) const {
return MakeArgString(StringRef(Str));
virtual const char *MakeArgStringRef(StringRef Str) const = 0;
const char *MakeArgString(const Twine &Str) const {
SmallString<256> Buf;
return MakeArgStringRef(Str.toStringRef(Buf));
}
const char *MakeArgString(std::string Str) const {
return MakeArgString(StringRef(Str));
}
const char *MakeArgString(const Twine &Str) const;
/// \brief Create an arg string for (\p LHS + \p RHS), reusing the
/// string at \p Index if possible.
@@ -336,7 +335,7 @@ public:
unsigned MakeIndex(StringRef String0, StringRef String1) const;
using ArgList::MakeArgString;
const char *MakeArgString(StringRef Str) const override;
const char *MakeArgStringRef(StringRef Str) const override;
/// @}
};
@@ -374,7 +373,7 @@ public:
void AddSynthesizedArg(Arg *A);
using ArgList::MakeArgString;
const char *MakeArgString(StringRef Str) const override;
const char *MakeArgStringRef(StringRef Str) const override;
/// AddFlagArg - Construct a new FlagArg for the given option \p Id and
/// append it to the argument list.