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Change the ModuleProvider interface to not throw exceptions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29024 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-07-06 21:35:01 +00:00
parent fe030d7869
commit 0300f3e712
4 changed files with 50 additions and 35 deletions
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26
include/llvm/ModuleProvider.h
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@ -18,6 +18,8 @@
#ifndef MODULEPROVIDER_H
#define MODULEPROVIDER_H
#include <string>
namespace llvm {
class Function;
@ -35,22 +37,24 @@ public:
///
Module* getModule() { return TheModule; }
/// materializeFunction - make sure the given function is fully read. Note
/// that this can throw an exception if the module is corrupt!
/// materializeFunction - make sure the given function is fully read. If the
/// module is corrupt, this returns true and fills in the optional string
/// with information about the problem. If successful, this returns false.
///
virtual void materializeFunction(Function *F) = 0;
virtual bool materializeFunction(Function *F, std::string *ErrInfo = 0) = 0;
/// materializeModule - make sure the entire Module has been completely read.
/// Note that this can throw an exception if the module is corrupt!
/// On error, return null and fill in the error string if specified.
///
virtual Module* materializeModule() = 0;
virtual Module* materializeModule(std::string *ErrInfo = 0) = 0;
/// releaseModule - no longer delete the Module* when provider is destroyed.
/// Note that this can throw an exception if the module is corrupt!
/// On error, return null and fill in the error string if specified.
///
virtual Module* releaseModule() {
virtual Module* releaseModule(std::string *ErrInfo = 0) {
// Since we're losing control of this Module, we must hand it back complete
materializeModule();
if (materializeModule(ErrInfo))
return 0;
Module *tempM = TheModule;
TheModule = 0;
return tempM;
@ -66,8 +70,10 @@ struct ExistingModuleProvider : public ModuleProvider {
ExistingModuleProvider(Module *M) {
TheModule = M;
}
void materializeFunction(Function *F) {}
Module* materializeModule() { return TheModule; }
bool materializeFunction(Function *F, std::string *ErrInfo = 0) {
return false;
}
Module* materializeModule(std::string *ErrInfo = 0) { return TheModule; }
};
} // End llvm namespace