mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
//===--- Printable.h - Print function helpers -------------------*- 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 Printable struct.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SUPPORT_PRINTABLE_H
|
|
#define LLVM_SUPPORT_PRINTABLE_H
|
|
|
|
#include <functional>
|
|
|
|
namespace llvm {
|
|
|
|
class raw_ostream;
|
|
|
|
/// Simple wrapper around std::function<void(raw_ostream&)>.
|
|
/// This class is useful to construct print helpers for raw_ostream.
|
|
///
|
|
/// Example:
|
|
/// Printable PrintRegister(unsigned Register) {
|
|
/// return Printable([Register](raw_ostream &OS) {
|
|
/// OS << getRegisterName(Register);
|
|
/// }
|
|
/// }
|
|
/// ... OS << PrintRegister(Register); ...
|
|
///
|
|
/// Implementation note: Ideally this would just be a typedef, but doing so
|
|
/// leads to operator << being ambiguous as function has matching constructors
|
|
/// in some STL versions. I have seen the problem on gcc 4.6 libstdc++ and
|
|
/// microsoft STL.
|
|
class Printable {
|
|
public:
|
|
std::function<void(raw_ostream &OS)> Print;
|
|
Printable(std::function<void(raw_ostream &OS)> Print)
|
|
: Print(std::move(Print)) {}
|
|
};
|
|
|
|
inline raw_ostream &operator<<(raw_ostream &OS, const Printable &P) {
|
|
P.Print(OS);
|
|
return OS;
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|