1 files changed, 128 insertions, 0 deletions
diff --git a/src/vm/methodimpl.h b/src/vm/methodimpl.h
new file mode 100644
index 0000000000..0646367f22
--- /dev/null
+++ b/src/vm/methodimpl.h
@@ -0,0 +1,128 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+//
+// File: methodimpl.h
+//
+
+
+//
+
+//
+// ============================================================================
+
+#ifndef _METHODIMPL_H 
+#define _METHODIMPL_H
+
+class MethodDesc;
+
+// <TODO>@TODO: This is very bloated. We need to trim this down alot. However,
+// we need to keep it on a 8 byte boundary.</TODO>
+class MethodImpl
+{
+#ifdef DACCESS_COMPILE
+    friend class NativeImageDumper;
+#endif
+
+    PTR_DWORD            pdwSlots;       // Maintains the slots in sorted order, the first entry is the size
+    DPTR(PTR_MethodDesc) pImplementedMD;
+
+public:
+
+#ifndef DACCESS_COMPILE 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    class Iterator
+    {
+    private:
+        MethodDesc *m_pMD;
+        MethodImpl *m_pImpl;
+        DWORD       m_iCur;
+
+    public:
+        Iterator(MethodDesc *pMD);
+        inline BOOL IsValid()
+            { WRAPPER_NO_CONTRACT; return ((m_pImpl != NULL)&& (m_iCur < m_pImpl->GetSize())); }
+        inline void Next()
+            { WRAPPER_NO_CONTRACT; if (IsValid()) m_iCur++; }
+        inline WORD GetSlot()
+            { WRAPPER_NO_CONTRACT; CONSISTENCY_CHECK(IsValid()); _ASSERTE(FitsIn<WORD>(m_pImpl->GetSlots()[m_iCur])); return static_cast<WORD>(m_pImpl->GetSlots()[m_iCur]); }
+        inline MethodDesc *GetMethodDesc()
+            { WRAPPER_NO_CONTRACT; return m_pImpl->FindMethodDesc(GetSlot(), (PTR_MethodDesc) m_pMD); }
+    };
+
+    ///////////////////////////////////////////////////////////////////////////////////////
+    inline MethodDesc** GetImplementedMDs()
+    {
+        CONTRACTL {
+            NOTHROW;
+            GC_NOTRIGGER;
+            PRECONDITION(CheckPointer(this));
+        } CONTRACTL_END;
+        return pImplementedMD;
+    }
+#endif // !DACCESS_COMPILE
+
+    ///////////////////////////////////////////////////////////////////////////////////////
+    inline DWORD GetSize()
+    {
+        CONTRACTL {
+            NOTHROW;
+            GC_NOTRIGGER;
+            PRECONDITION(CheckPointer(this));
+        } CONTRACTL_END;
+
+        if(pdwSlots == NULL)
+            return 0;
+        else
+            return *pdwSlots;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////////////////
+    inline PTR_DWORD GetSlots()
+    {
+        CONTRACTL {
+            NOTHROW;
+            GC_NOTRIGGER;
+            PRECONDITION(CheckPointer(this));
+            SUPPORTS_DAC;
+        } CONTRACTL_END;
+
+        if(pdwSlots == NULL)
+            return NULL;
+        else
+            return pdwSlots + 1;
+    }
+
+#ifndef DACCESS_COMPILE 
+
+    ///////////////////////////////////////////////////////////////////////////////////////
+    void SetSize(LoaderHeap *pHeap, AllocMemTracker *pamTracker, DWORD size);
+
+    ///////////////////////////////////////////////////////////////////////////////////////
+    void SetData(DWORD* slots, MethodDesc** md);
+
+#endif // !DACCESS_COMPILE
+
+#ifdef DACCESS_COMPILE 
+    void EnumMemoryRegions(CLRDataEnumMemoryFlags flags);
+#endif
+
+#ifdef FEATURE_PREJIT 
+    void Save(DataImage *image);
+    void Fixup(DataImage *image, PVOID p, SSIZE_T offset);
+#endif // FEATURE_PREJIT
+
+
+    // Returns the method desc for the replaced slot;
+    PTR_MethodDesc FindMethodDesc(DWORD slot, PTR_MethodDesc defaultReturn);
+
+private:
+    static const DWORD INVALID_INDEX = (DWORD)(-1);
+    DWORD FindSlotIndex(DWORD slot);
+#ifndef DACCESS_COMPILE 
+    MethodDesc* RestoreSlot(DWORD slotIndex, MethodTable *pMT);
+#endif
+
+};
+
+#endif // !_METHODIMPL_H