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