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1 //===- FormatAdapters.h - Formatters for common LLVM types -----*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #ifndef LLVM_SUPPORT_FORMATADAPTERS_H
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11 #define LLVM_SUPPORT_FORMATADAPTERS_H
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12
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13 #include "llvm/ADT/SmallString.h"
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14 #include "llvm/ADT/StringRef.h"
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15 #include "llvm/Support/FormatCommon.h"
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16 #include "llvm/Support/FormatVariadicDetails.h"
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17 #include "llvm/Support/raw_ostream.h"
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18
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19 namespace llvm {
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20 template <typename T> class FormatAdapter : public detail::format_adapter {
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21 protected:
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22 explicit FormatAdapter(T &&Item) : Item(Item) {}
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23
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24 T Item;
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25 };
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26
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27 namespace detail {
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28 template <typename T> class AlignAdapter final : public FormatAdapter<T> {
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29 AlignStyle Where;
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30 size_t Amount;
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31 char Fill;
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32
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33 public:
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34 AlignAdapter(T &&Item, AlignStyle Where, size_t Amount, char Fill)
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35 : FormatAdapter<T>(std::forward<T>(Item)), Where(Where), Amount(Amount),
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36 Fill(Fill) {}
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37
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38 void format(llvm::raw_ostream &Stream, StringRef Style) {
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39 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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40 FmtAlign(Adapter, Where, Amount, Fill).format(Stream, Style);
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41 }
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42 };
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43
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44 template <typename T> class PadAdapter final : public FormatAdapter<T> {
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45 size_t Left;
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46 size_t Right;
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47
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48 public:
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49 PadAdapter(T &&Item, size_t Left, size_t Right)
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50 : FormatAdapter<T>(std::forward<T>(Item)), Left(Left), Right(Right) {}
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51
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52 void format(llvm::raw_ostream &Stream, StringRef Style) {
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53 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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54 Stream.indent(Left);
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55 Adapter.format(Stream, Style);
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56 Stream.indent(Right);
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57 }
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58 };
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59
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60 template <typename T> class RepeatAdapter final : public FormatAdapter<T> {
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61 size_t Count;
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62
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63 public:
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64 RepeatAdapter(T &&Item, size_t Count)
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65 : FormatAdapter<T>(std::forward<T>(Item)), Count(Count) {}
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66
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67 void format(llvm::raw_ostream &Stream, StringRef Style) {
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68 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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69 for (size_t I = 0; I < Count; ++I) {
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70 Adapter.format(Stream, Style);
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71 }
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72 }
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73 };
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74 }
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75
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76 template <typename T>
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77 detail::AlignAdapter<T> fmt_align(T &&Item, AlignStyle Where, size_t Amount,
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78 char Fill = ' ') {
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79 return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount, Fill);
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80 }
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81
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82 template <typename T>
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83 detail::PadAdapter<T> fmt_pad(T &&Item, size_t Left, size_t Right) {
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84 return detail::PadAdapter<T>(std::forward<T>(Item), Left, Right);
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85 }
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86
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87 template <typename T>
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88 detail::RepeatAdapter<T> fmt_repeat(T &&Item, size_t Count) {
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89 return detail::RepeatAdapter<T>(std::forward<T>(Item), Count);
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90 }
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91 }
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92
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93 #endif
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