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