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//===- llvm/ADT/SmallString.h - 'Normally small' strings --------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the SmallString class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ADT_SMALLSTRING_H
#define LLVM_ADT_SMALLSTRING_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
namespace llvm {
/// SmallString - A SmallString is just a SmallVector with methods and accessors
/// that make it work better as a string (e.g. operator+ etc).
template<unsigned InternalLen>
class SmallString : public SmallVector<char, InternalLen> {
public:
// Default ctor - Initialize to empty.
SmallString() {}
// Initialize from a StringRef.
SmallString(StringRef S) : SmallVector<char, InternalLen>(S.begin(), S.end()) {}
// Initialize with a range.
template<typename ItTy>
SmallString(ItTy S, ItTy E) : SmallVector<char, InternalLen>(S, E) {}
// Copy ctor.
SmallString(const SmallString &RHS) : SmallVector<char, InternalLen>(RHS) {}
// Extra methods.
StringRef str() const { return StringRef(this->begin(), this->size()); }
// TODO: Make this const, if it's safe...
const char* c_str() {
this->push_back(0);
this->pop_back();
return this->data();
}
// Implicit conversion to StringRef.
operator StringRef() const { return str(); }
// Extra operators.
const SmallString &operator=(StringRef RHS) {
this->clear();
return *this += RHS;
}
SmallString &operator+=(StringRef RHS) {
this->append(RHS.begin(), RHS.end());
return *this;
}
SmallString &operator+=(char C) {
this->push_back(C);
return *this;
}
};
}
#endif
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