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94cee8ef5e
Previously if you used fmt_align(7, Center) you would get the output ' 7 '. It may be desirable for the user to specify the fill character though, for example producing '---7---'. This patch adds that. llvm-svn: 305449
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
//===- FormatAdapters.h - Formatters for common LLVM types -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_FORMATADAPTERS_H
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#define LLVM_SUPPORT_FORMATADAPTERS_H
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/FormatCommon.h"
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#include "llvm/Support/FormatVariadicDetails.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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template <typename T> class FormatAdapter : public detail::format_adapter {
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protected:
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explicit FormatAdapter(T &&Item) : Item(Item) {}
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T Item;
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};
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namespace detail {
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template <typename T> class AlignAdapter final : public FormatAdapter<T> {
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AlignStyle Where;
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size_t Amount;
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char Fill;
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public:
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AlignAdapter(T &&Item, AlignStyle Where, size_t Amount, char Fill)
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: FormatAdapter<T>(std::forward<T>(Item)), Where(Where), Amount(Amount),
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Fill(Fill) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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FmtAlign(Adapter, Where, Amount, Fill).format(Stream, Style);
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}
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};
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template <typename T> class PadAdapter final : public FormatAdapter<T> {
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size_t Left;
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size_t Right;
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public:
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PadAdapter(T &&Item, size_t Left, size_t Right)
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: FormatAdapter<T>(std::forward<T>(Item)), Left(Left), Right(Right) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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Stream.indent(Left);
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Adapter.format(Stream, Style);
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Stream.indent(Right);
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}
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};
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template <typename T> class RepeatAdapter final : public FormatAdapter<T> {
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size_t Count;
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public:
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RepeatAdapter(T &&Item, size_t Count)
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: FormatAdapter<T>(std::forward<T>(Item)), Count(Count) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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for (size_t I = 0; I < Count; ++I) {
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Adapter.format(Stream, Style);
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}
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}
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};
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}
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template <typename T>
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detail::AlignAdapter<T> fmt_align(T &&Item, AlignStyle Where, size_t Amount,
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char Fill = ' ') {
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return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount, Fill);
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}
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template <typename T>
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detail::PadAdapter<T> fmt_pad(T &&Item, size_t Left, size_t Right) {
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return detail::PadAdapter<T>(std::forward<T>(Item), Left, Right);
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}
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template <typename T>
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detail::RepeatAdapter<T> fmt_repeat(T &&Item, size_t Count) {
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return detail::RepeatAdapter<T>(std::forward<T>(Item), Count);
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}
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}
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#endif
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