clang-tools-extra/clang-doc/Generators.h

   1 //===-- Generators.h - ClangDoc Generator ----------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 // Generator classes for converting declaration information into documentation
   9 // in a specified format.
  10 //===----------------------------------------------------------------------===//
  11
  12 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_DOC_GENERATOR_H
  13 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_DOC_GENERATOR_H
  14
  15 #include "Representation.h"
  16 #include "llvm/Support/Error.h"
  17 #include "llvm/Support/Registry.h"
  18
  19 namespace clang {
  20 namespace doc {
  21
  22 // Abstract base class for generators.
  23 // This is expected to be implemented and exposed via the GeneratorRegistry.
  24 class Generator {
  25 public:
  26   virtual ~Generator() = default;
  27
  28   // Write out the decl info in the specified format.
  29   virtual llvm::Error generateDocForInfo(Info *I, llvm::raw_ostream &OS,
  30                                          const ClangDocContext &CDCtx) = 0;
  31   // This function writes a file with the index previously constructed.
  32   // It can be overwritten by any of the inherited generators.
  33   // If the override method wants to run this it should call
  34   // Generator::createResources(CDCtx);
  35   virtual llvm::Error createResources(ClangDocContext &CDCtx);
  36
  37   static void addInfoToIndex(Index &Idx, const doc::Info *Info);
  38 };
  39
  40 typedef llvm::Registry<Generator> GeneratorRegistry;
  41
  42 llvm::Expected<std::unique_ptr<Generator>>
  43 findGeneratorByName(llvm::StringRef Format);
  44
  45 std::string getTagType(TagTypeKind AS);
  46
  47 } // namespace doc
  48 } // namespace clang
  49
  50 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_DOC_GENERATOR_H