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//===- FormatAdapters.h - Formatters for common LLVM types -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_FORMATADAPTERS_H
#define LLVM_SUPPORT_FORMATADAPTERS_H
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/FormatCommon.h"
#include "llvm/Support/FormatVariadicDetails.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
template <typename T> class FormatAdapter : public detail::format_adapter {
protected:
explicit FormatAdapter(T &&Item) : Item(Item) {}
T Item;
static_assert(!detail::uses_missing_provider<T>::value,
"Item does not have a format provider!");
};
namespace detail {
template <typename T> class AlignAdapter final : public FormatAdapter<T> {
AlignStyle Where;
size_t Amount;
public:
AlignAdapter(T &&Item, AlignStyle Where, size_t Amount)
: FormatAdapter<T>(std::forward<T>(Item)), Where(Where), Amount(Amount) {}
void format(llvm::raw_ostream &Stream, StringRef Style) {
auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
FmtAlign(Adapter, Where, Amount).format(Stream, Style);
}
};
template <typename T> class PadAdapter final : public FormatAdapter<T> {
size_t Left;
size_t Right;
public:
PadAdapter(T &&Item, size_t Left, size_t Right)
: FormatAdapter<T>(std::forward<T>(Item)), Left(Left), Right(Right) {}
void format(llvm::raw_ostream &Stream, StringRef Style) {
auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
Stream.indent(Left);
Adapter.format(Stream, Style);
Stream.indent(Right);
}
};
template <typename T> class RepeatAdapter final : public FormatAdapter<T> {
size_t Count;
public:
RepeatAdapter(T &&Item, size_t Count)
: FormatAdapter<T>(std::forward<T>(Item)), Count(Count) {}
void format(llvm::raw_ostream &Stream, StringRef Style) {
auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
for (size_t I = 0; I < Count; ++I) {
Adapter.format(Stream, Style);
}
}
};
}
template <typename T>
detail::AlignAdapter<T> fmt_align(T &&Item, AlignStyle Where, size_t Amount) {
return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount);
}
template <typename T>
detail::PadAdapter<T> fmt_pad(T &&Item, size_t Left, size_t Right) {
return detail::PadAdapter<T>(std::forward<T>(Item), Left, Right);
}
template <typename T>
detail::RepeatAdapter<T> fmt_repeat(T &&Item, size_t Count) {
return detail::RepeatAdapter<T>(std::forward<T>(Item), Count);
}
}
#endif
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