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84e9de4a58
getMDKindID/getMDKindNames methods to LLVMContext (and add convenience methods to Module), eliminating MetadataContext. Move the state that it maintains out to LLVMContext. llvm-svn: 92259
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
//===-- llvm/LLVMContext.h - Class for managing "global" state --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares LLVMContext, a container of "global" state in LLVM, such
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// as the global type and constant uniquing tables.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LLVMCONTEXT_H
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#define LLVM_LLVMCONTEXT_H
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namespace llvm {
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class LLVMContextImpl;
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class StringRef;
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template <typename T> class SmallVectorImpl;
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/// This is an important class for using LLVM in a threaded context. It
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/// (opaquely) owns and manages the core "global" data of LLVM's core
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/// infrastructure, including the type and constant uniquing tables.
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/// LLVMContext itself provides no locking guarantees, so you should be careful
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/// to have one context per thread.
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class LLVMContext {
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// DO NOT IMPLEMENT
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LLVMContext(LLVMContext&);
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void operator=(LLVMContext&);
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public:
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LLVMContextImpl *const pImpl;
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LLVMContext();
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~LLVMContext();
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/// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
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/// This ID is uniqued across modules in the current LLVMContext.
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unsigned getMDKindID(StringRef Name) const;
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/// getMDKindNames - Populate client supplied SmallVector with the name for
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/// custom metadata IDs registered in this LLVMContext. ID #0 is not used,
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/// so it is filled in as an empty string.
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void getMDKindNames(SmallVectorImpl<StringRef> &Result) const;
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};
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/// getGlobalContext - Returns a global context. This is for LLVM clients that
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/// only care about operating on a single thread.
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extern LLVMContext &getGlobalContext();
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}
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#endif
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