forked from OSchip/llvm-project
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
//===--- CommentCommandTraits.cpp - Comment command properties --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/CommentCommandTraits.h"
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#include "llvm/ADT/STLExtras.h"
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namespace clang {
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namespace comments {
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#include "clang/AST/CommentCommandInfo.inc"
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CommandTraits::CommandTraits(llvm::BumpPtrAllocator &Allocator) :
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NextID(llvm::array_lengthof(Commands)), Allocator(Allocator)
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{ }
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const CommandInfo *CommandTraits::getCommandInfoOrNULL(StringRef Name) const {
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if (const CommandInfo *Info = getBuiltinCommandInfo(Name))
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return Info;
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return getRegisteredCommandInfo(Name);
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}
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const CommandInfo *CommandTraits::getCommandInfo(unsigned CommandID) const {
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if (const CommandInfo *Info = getBuiltinCommandInfo(CommandID))
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return Info;
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return getRegisteredCommandInfo(CommandID);
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}
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const CommandInfo *CommandTraits::registerUnknownCommand(StringRef CommandName) {
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char *Name = Allocator.Allocate<char>(CommandName.size() + 1);
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memcpy(Name, CommandName.data(), CommandName.size());
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Name[CommandName.size()] = '\0';
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// Value-initialize (=zero-initialize in this case) a new CommandInfo.
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CommandInfo *Info = new (Allocator) CommandInfo();
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Info->Name = Name;
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Info->ID = NextID++;
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Info->IsUnknownCommand = true;
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RegisteredCommands.push_back(Info);
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return Info;
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}
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const CommandInfo *CommandTraits::getBuiltinCommandInfo(
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unsigned CommandID) {
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if (CommandID < llvm::array_lengthof(Commands))
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return &Commands[CommandID];
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return NULL;
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}
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const CommandInfo *CommandTraits::getRegisteredCommandInfo(
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StringRef Name) const {
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for (unsigned i = 0, e = RegisteredCommands.size(); i != e; ++i) {
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if (RegisteredCommands[i]->Name == Name)
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return RegisteredCommands[i];
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}
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return NULL;
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}
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const CommandInfo *CommandTraits::getRegisteredCommandInfo(
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unsigned CommandID) const {
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return RegisteredCommands[CommandID - llvm::array_lengthof(Commands)];
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}
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} // end namespace comments
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} // end namespace clang
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