1 //===- FormatAdapters.h - Formatters for common LLVM types -----*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_SUPPORT_FORMATADAPTERS_H 11 #define LLVM_SUPPORT_FORMATADAPTERS_H 12 13 #include "llvm/ADT/SmallString.h" 14 #include "llvm/ADT/StringRef.h" 15 #include "llvm/Support/FormatCommon.h" 16 #include "llvm/Support/FormatVariadicDetails.h" 17 #include "llvm/Support/raw_ostream.h" 18 19 namespace llvm { 20 template <typename T> class FormatAdapter : public detail::format_adapter { 21 protected: 22 explicit FormatAdapter(T &&Item) : Item(Item) {} 23 24 T Item; 25 }; 26 27 namespace detail { 28 template <typename T> class AlignAdapter final : public FormatAdapter<T> { 29 AlignStyle Where; 30 size_t Amount; 31 char Fill; 32 33 public: 34 AlignAdapter(T &&Item, AlignStyle Where, size_t Amount, char Fill) 35 : FormatAdapter<T>(std::forward<T>(Item)), Where(Where), Amount(Amount), 36 Fill(Fill) {} 37 38 void format(llvm::raw_ostream &Stream, StringRef Style) { 39 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item)); 40 FmtAlign(Adapter, Where, Amount, Fill).format(Stream, Style); 41 } 42 }; 43 44 template <typename T> class PadAdapter final : public FormatAdapter<T> { 45 size_t Left; 46 size_t Right; 47 48 public: 49 PadAdapter(T &&Item, size_t Left, size_t Right) 50 : FormatAdapter<T>(std::forward<T>(Item)), Left(Left), Right(Right) {} 51 52 void format(llvm::raw_ostream &Stream, StringRef Style) { 53 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item)); 54 Stream.indent(Left); 55 Adapter.format(Stream, Style); 56 Stream.indent(Right); 57 } 58 }; 59 60 template <typename T> class RepeatAdapter final : public FormatAdapter<T> { 61 size_t Count; 62 63 public: 64 RepeatAdapter(T &&Item, size_t Count) 65 : FormatAdapter<T>(std::forward<T>(Item)), Count(Count) {} 66 67 void format(llvm::raw_ostream &Stream, StringRef Style) { 68 auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item)); 69 for (size_t I = 0; I < Count; ++I) { 70 Adapter.format(Stream, Style); 71 } 72 } 73 }; 74 } 75 76 template <typename T> 77 detail::AlignAdapter<T> fmt_align(T &&Item, AlignStyle Where, size_t Amount, 78 char Fill = ' ') { 79 return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount, Fill); 80 } 81 82 template <typename T> 83 detail::PadAdapter<T> fmt_pad(T &&Item, size_t Left, size_t Right) { 84 return detail::PadAdapter<T>(std::forward<T>(Item), Left, Right); 85 } 86 87 template <typename T> 88 detail::RepeatAdapter<T> fmt_repeat(T &&Item, size_t Count) { 89 return detail::RepeatAdapter<T>(std::forward<T>(Item), Count); 90 } 91 } 92 93 #endif 94
