1 files changed, 62 insertions, 0 deletions
diff --git a/include/llvm/ExecutionEngine/Orc/LambdaResolver.h b/include/llvm/ExecutionEngine/Orc/LambdaResolver.h
new file mode 100644
index 0000000..faa2365
--- /dev/null
+++ b/include/llvm/ExecutionEngine/Orc/LambdaResolver.h
@@ -0,0 +1,62 @@
+//===-- LambdaResolverMM - Redirect symbol lookup via a functor -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//   Defines a RuntimeDyld::SymbolResolver subclass that uses a user-supplied
+// functor for symbol resolution.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTIONENGINE_ORC_LAMBDARESOLVER_H
+#define LLVM_EXECUTIONENGINE_ORC_LAMBDARESOLVER_H
+
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ExecutionEngine/RuntimeDyld.h"
+#include <memory>
+#include <vector>
+
+namespace llvm {
+namespace orc {
+
+template <typename ExternalLookupFtorT, typename DylibLookupFtorT>
+class LambdaResolver : public RuntimeDyld::SymbolResolver {
+public:
+
+  LambdaResolver(ExternalLookupFtorT ExternalLookupFtor,
+                 DylibLookupFtorT DylibLookupFtor)
+      : ExternalLookupFtor(ExternalLookupFtor),
+        DylibLookupFtor(DylibLookupFtor) {}
+
+  RuntimeDyld::SymbolInfo findSymbol(const std::string &Name) final {
+    return ExternalLookupFtor(Name);
+  }
+
+  RuntimeDyld::SymbolInfo
+  findSymbolInLogicalDylib(const std::string &Name) final {
+    return DylibLookupFtor(Name);
+  }
+
+private:
+  ExternalLookupFtorT ExternalLookupFtor;
+  DylibLookupFtorT DylibLookupFtor;
+};
+
+template <typename ExternalLookupFtorT,
+          typename DylibLookupFtorT>
+std::unique_ptr<LambdaResolver<ExternalLookupFtorT, DylibLookupFtorT>>
+createLambdaResolver(ExternalLookupFtorT ExternalLookupFtor,
+                     DylibLookupFtorT DylibLookupFtor) {
+  typedef LambdaResolver<ExternalLookupFtorT, DylibLookupFtorT> LR;
+  return make_unique<LR>(std::move(ExternalLookupFtor),
+                         std::move(DylibLookupFtor));
+}
+
+} // End namespace orc.
+} // End namespace llvm.
+
+#endif // LLVM_EXECUTIONENGINE_ORC_LAMBDARESOLVER_H