forked from OSchip/llvm-project
112 lines
4.0 KiB
C++
112 lines
4.0 KiB
C++
//===-- Generators.cpp - Generator Registry ----------------------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Generators.h"
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LLVM_INSTANTIATE_REGISTRY(clang::doc::GeneratorRegistry)
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namespace clang {
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namespace doc {
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llvm::Expected<std::unique_ptr<Generator>>
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findGeneratorByName(llvm::StringRef Format) {
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for (const auto &Generator : GeneratorRegistry::entries()) {
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if (Generator.getName() != Format)
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continue;
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return Generator.instantiate();
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}
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return createStringError(llvm::inconvertibleErrorCode(),
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"can't find generator: " + Format);
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}
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// Enum conversion
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std::string getTagType(TagTypeKind AS) {
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switch (AS) {
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case TagTypeKind::TTK_Class:
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return "class";
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case TagTypeKind::TTK_Union:
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return "union";
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case TagTypeKind::TTK_Interface:
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return "interface";
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case TagTypeKind::TTK_Struct:
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return "struct";
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case TagTypeKind::TTK_Enum:
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return "enum";
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}
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llvm_unreachable("Unknown TagTypeKind");
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}
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llvm::Error Generator::createResources(ClangDocContext &CDCtx) {
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return llvm::Error::success();
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}
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// A function to add a reference to Info in Idx.
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// Given an Info X with the following namespaces: [B,A]; a reference to X will
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// be added in the children of a reference to B, which should be also a child of
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// a reference to A, where A is a child of Idx.
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// Idx
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// |-- A
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// |--B
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// |--X
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// If the references to the namespaces do not exist, they will be created. If
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// the references already exist, the same one will be used.
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void Generator::addInfoToIndex(Index &Idx, const doc::Info *Info) {
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// Index pointer that will be moving through Idx until the first parent
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// namespace of Info (where the reference has to be inserted) is found.
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Index *I = &Idx;
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// The Namespace vector includes the upper-most namespace at the end so the
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// loop will start from the end to find each of the namespaces.
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for (const auto &R : llvm::reverse(Info->Namespace)) {
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// Look for the current namespace in the children of the index I is
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// pointing.
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auto It = std::find(I->Children.begin(), I->Children.end(), R.USR);
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if (It != I->Children.end()) {
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// If it is found, just change I to point the namespace reference found.
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I = &*It;
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} else {
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// If it is not found a new reference is created
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I->Children.emplace_back(R.USR, R.Name, R.RefType, R.Path);
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// I is updated with the reference of the new namespace reference
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I = &I->Children.back();
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}
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}
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// Look for Info in the vector where it is supposed to be; it could already
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// exist if it is a parent namespace of an Info already passed to this
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// function.
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auto It = std::find(I->Children.begin(), I->Children.end(), Info->USR);
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if (It == I->Children.end()) {
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// If it is not in the vector it is inserted
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I->Children.emplace_back(Info->USR, Info->extractName(), Info->IT,
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Info->Path);
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} else {
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// If it not in the vector we only check if Path and Name are not empty
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// because if the Info was included by a namespace it may not have those
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// values.
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if (It->Path.empty())
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It->Path = Info->Path;
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if (It->Name.empty())
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It->Name = Info->extractName();
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}
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}
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// This anchor is used to force the linker to link in the generated object file
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// and thus register the generators.
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extern volatile int YAMLGeneratorAnchorSource;
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extern volatile int MDGeneratorAnchorSource;
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extern volatile int HTMLGeneratorAnchorSource;
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static int LLVM_ATTRIBUTE_UNUSED YAMLGeneratorAnchorDest =
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YAMLGeneratorAnchorSource;
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static int LLVM_ATTRIBUTE_UNUSED MDGeneratorAnchorDest =
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MDGeneratorAnchorSource;
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static int LLVM_ATTRIBUTE_UNUSED HTMLGeneratorAnchorDest =
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HTMLGeneratorAnchorSource;
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} // namespace doc
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} // namespace clang
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