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c0039e25a4
which ones don't, which is state that the parent class doesn't know without knowing the implementation. Let the children classes implement materializeModule(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10942 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
//===-- llvm/ModuleProvider.h - Interface for module providers --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides an abstract interface for loading a module from some
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// place. This interface allows incremental or random access loading of
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// functions from the file. This is useful for applications like JIT compilers
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// or interprocedural optimizers that do not need the entire program in memory
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// at the same time.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MODULEPROVIDER_H
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#define MODULEPROVIDER_H
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namespace llvm {
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class Function;
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class Module;
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class ModuleProvider {
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protected:
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Module *TheModule;
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ModuleProvider();
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public:
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virtual ~ModuleProvider();
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/// getModule - returns the module this provider is encapsulating.
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///
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Module* getModule() { return TheModule; }
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/// materializeFunction - make sure the given function is fully read.
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///
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virtual void materializeFunction(Function *F) = 0;
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/// materializeModule - make sure the entire Module has been completely read.
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///
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virtual Module* materializeModule() = 0;
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/// releaseModule - no longer delete the Module* when provider is destroyed.
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///
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virtual Module* releaseModule() {
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// Since we're losing control of this Module, we must hand it back complete
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materializeModule();
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Module *tempM = TheModule;
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TheModule = 0;
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return tempM;
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}
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};
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/// ExistingModuleProvider - Allow conversion from a fully materialized Module
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/// into a ModuleProvider, allowing code that expects a ModuleProvider to work
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/// if we just have a Module. Note that the ModuleProvider takes ownership of
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/// the Module specified.
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struct ExistingModuleProvider : public ModuleProvider {
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ExistingModuleProvider(Module *M) {
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TheModule = M;
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}
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void materializeFunction(Function *F) {}
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Module* materializeModule() { return TheModule; }
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};
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} // End llvm namespace
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#endif
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