clang/lib/Interpreter/IncrementalExecutor.h

   1 //===--- IncrementalExecutor.h - Incremental Execution ----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the class which performs incremental code execution.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
  14 #define LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
  15
  16 #include "llvm/ADT/DenseMap.h"
  17 #include "llvm/ADT/StringRef.h"
  18 #include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
  19
  20 #include <memory>
  21
  22 namespace llvm {
  23 class Error;
  24 namespace orc {
  25 class LLJIT;
  26 class ThreadSafeContext;
  27 } // namespace orc
  28 } // namespace llvm
  29
  30 namespace clang {
  31
  32 struct PartialTranslationUnit;
  33 class TargetInfo;
  34
  35 class IncrementalExecutor {
  36   using CtorDtorIterator = llvm::orc::CtorDtorIterator;
  37   std::unique_ptr<llvm::orc::LLJIT> Jit;
  38   llvm::orc::ThreadSafeContext &TSCtx;
  39
  40   llvm::DenseMap<const PartialTranslationUnit *, llvm::orc::ResourceTrackerSP>
  41       ResourceTrackers;
  42
  43 public:
  44   enum SymbolNameKind { IRName, LinkerName };
  45
  46   IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC, llvm::Error &Err,
  47                       const clang::TargetInfo &TI);
  48   ~IncrementalExecutor();
  49
  50   llvm::Error addModule(PartialTranslationUnit &PTU);
  51   llvm::Error removeModule(PartialTranslationUnit &PTU);
  52   llvm::Error runCtors() const;
  53   llvm::Error cleanUp();
  54   llvm::Expected<llvm::JITTargetAddress>
  55   getSymbolAddress(llvm::StringRef Name, SymbolNameKind NameKind) const;
  56   llvm::orc::LLJIT *getExecutionEngine() const { return Jit.get(); }
  57 };
  58
  59 } // end namespace clang
  60
  61 #endif // LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H