mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 00:11:00 +00:00
551ccae044
Move include/Config and include/Support into include/llvm/Config, include/llvm/ADT and include/llvm/Support. From here on out, all LLVM public header files must be under include/llvm/. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
//===-- Annotation.cpp - Implement the Annotation Classes -----------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the AnnotationManager class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <map>
|
|
#include "llvm/Support/Annotation.h"
|
|
using namespace llvm;
|
|
|
|
Annotation::~Annotation() {} // Designed to be subclassed
|
|
|
|
Annotable::~Annotable() { // Virtual because it's designed to be subclassed...
|
|
Annotation *A = AnnotationList;
|
|
while (A) {
|
|
Annotation *Next = A->getNext();
|
|
delete A;
|
|
A = Next;
|
|
}
|
|
}
|
|
|
|
|
|
typedef std::map<const std::string, unsigned> IDMapType;
|
|
static unsigned IDCounter = 0; // Unique ID counter
|
|
|
|
// Static member to ensure initialiation on demand.
|
|
static IDMapType &getIDMap() { static IDMapType TheMap; return TheMap; }
|
|
|
|
// On demand annotation creation support...
|
|
typedef Annotation *(*AnnFactory)(AnnotationID, const Annotable *, void *);
|
|
typedef std::map<unsigned, std::pair<AnnFactory,void*> > FactMapType;
|
|
|
|
static FactMapType *TheFactMap = 0;
|
|
static FactMapType &getFactMap() {
|
|
if (TheFactMap == 0)
|
|
TheFactMap = new FactMapType();
|
|
return *TheFactMap;
|
|
}
|
|
|
|
static void eraseFromFactMap(unsigned ID) {
|
|
assert(TheFactMap && "No entries found!");
|
|
TheFactMap->erase(ID);
|
|
if (TheFactMap->empty()) { // Delete when empty
|
|
delete TheFactMap;
|
|
TheFactMap = 0;
|
|
}
|
|
}
|
|
|
|
AnnotationID AnnotationManager::getID(const std::string &Name) { // Name -> ID
|
|
IDMapType::iterator I = getIDMap().find(Name);
|
|
if (I == getIDMap().end()) {
|
|
getIDMap()[Name] = IDCounter++; // Add a new element
|
|
return IDCounter-1;
|
|
}
|
|
return I->second;
|
|
}
|
|
|
|
// getID - Name -> ID + registration of a factory function for demand driven
|
|
// annotation support.
|
|
AnnotationID AnnotationManager::getID(const std::string &Name, Factory Fact,
|
|
void *Data) {
|
|
AnnotationID Result(getID(Name));
|
|
registerAnnotationFactory(Result, Fact, Data);
|
|
return Result;
|
|
}
|
|
|
|
|
|
// getName - This function is especially slow, but that's okay because it should
|
|
// only be used for debugging.
|
|
//
|
|
const std::string &AnnotationManager::getName(AnnotationID ID) { // ID -> Name
|
|
IDMapType &TheMap = getIDMap();
|
|
for (IDMapType::iterator I = TheMap.begin(); ; ++I) {
|
|
assert(I != TheMap.end() && "Annotation ID is unknown!");
|
|
if (I->second == ID.ID) return I->first;
|
|
}
|
|
}
|
|
|
|
|
|
// registerAnnotationFactory - This method is used to register a callback
|
|
// function used to create an annotation on demand if it is needed by the
|
|
// Annotable::findOrCreateAnnotation method.
|
|
//
|
|
void AnnotationManager::registerAnnotationFactory(AnnotationID ID,
|
|
AnnFactory F,
|
|
void *ExtraData) {
|
|
if (F)
|
|
getFactMap()[ID.ID] = std::make_pair(F, ExtraData);
|
|
else
|
|
eraseFromFactMap(ID.ID);
|
|
}
|
|
|
|
// createAnnotation - Create an annotation of the specified ID for the
|
|
// specified object, using a register annotation creation function.
|
|
//
|
|
Annotation *AnnotationManager::createAnnotation(AnnotationID ID,
|
|
const Annotable *Obj) {
|
|
FactMapType::iterator I = getFactMap().find(ID.ID);
|
|
if (I == getFactMap().end()) return 0;
|
|
return I->second.first(ID, Obj, I->second.second);
|
|
}
|