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92 lines
2.7 KiB
C++
92 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 AdapterBase {
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protected:
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explicit AdapterBase(T &&Item) : Item(Item) {}
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T Item;
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static_assert(!detail::uses_missing_provider<T>::value,
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"Item does not have a format provider!");
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};
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namespace detail {
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template <typename T> class AlignAdapter : public AdapterBase<T> {
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AlignStyle Where;
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size_t Amount;
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public:
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AlignAdapter(T &&Item, AlignStyle Where, size_t Amount)
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: AdapterBase<T>(std::forward<T>(Item)), Where(Where), Amount(Amount) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Wrapper = detail::build_format_wrapper(std::forward<T>(this->Item));
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FmtAlign(Wrapper, Where, Amount).format(Stream, Style);
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}
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};
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template <typename T> class PadAdapter : public AdapterBase<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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: AdapterBase<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 Wrapper = detail::build_format_wrapper(std::forward<T>(this->Item));
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Stream.indent(Left);
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Wrapper.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 : public AdapterBase<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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: AdapterBase<T>(std::forward<T>(Item)), Count(Count) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Wrapper = detail::build_format_wrapper(std::forward<T>(this->Item));
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for (size_t I = 0; I < Count; ++I) {
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Wrapper.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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return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount);
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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 |