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annotate tools/binding/llvm-typemonitor.cpp @ 1273:1ba61de8796b

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Committing LLVM binding for D as it currently exists in the SVN repository.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 27 Apr 2009 22:33:17 +0200
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children 4ff9ab0d472c
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1273
1ba61de8796b Committing LLVM binding for D as it currently exists in the SVN repository.
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1 /// Support for callbacks when an abstract type becomes more concrete.
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2
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3 #include "llvm/Type.h"
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4 #include "llvm-c/Core.h"
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5
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6 using namespace llvm;
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7
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8 extern "C" typedef int (*RefineCallback)(void *handle, LLVMTypeRef newT);
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9
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10 class TypeMonitor : AbstractTypeUser {
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11 void *handle_;
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12 RefineCallback callback_;
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13
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14 void onRefineType(const Type* oldT, const Type* newT) {
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15 callback_(handle_, wrap(newT));
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16 oldT->removeAbstractTypeUser(this);
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17 delete this;
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18 }
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19
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20 public:
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21
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22 TypeMonitor(Type* T, void *handle, RefineCallback callback)
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23 : handle_(handle), callback_(callback) {
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24 T->addAbstractTypeUser(this);
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25 }
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26
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27 virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy) {
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28 onRefineType(OldTy, NewTy);
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29 }
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30
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31 virtual void typeBecameConcrete(const DerivedType *AbsTy) {
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32 onRefineType(AbsTy, AbsTy);
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33 }
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34
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35 virtual void dump() const {
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36 cerr << "<TypeMonitor>";
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37 }
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38 };
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39
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40 extern "C" void LLVMRegisterAbstractTypeCallback(LLVMTypeRef T,
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41 void *handle,
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42 RefineCallback callback)
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43 {
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44 new TypeMonitor(unwrap(T), handle, callback);
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45 }