1 files changed, 72 insertions, 0 deletions
diff --git a/src/jit/jitconfig.h b/src/jit/jitconfig.h
new file mode 100644
index 0000000000..076d920192
--- /dev/null
+++ b/src/jit/jitconfig.h
@@ -0,0 +1,72 @@
+// 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.
+
+#ifndef _JITCONFIG_H_
+#define _JITCONFIG_H_
+
+struct CORINFO_SIG_INFO;
+class ICorJitHost;
+
+class JitConfigValues
+{
+public:
+    class MethodSet
+    {
+    private:
+        struct MethodName
+        {
+            MethodName* m_next;
+            int m_methodNameStart;
+            int m_methodNameLen;
+            int m_classNameStart;
+            int m_classNameLen;
+            int m_numArgs;
+        };
+
+        const char* m_list;
+        MethodName* m_names;
+
+        MethodSet(const MethodSet& other) = delete;
+        MethodSet& operator=(const MethodSet& other) = delete;
+
+    public:
+        MethodSet() { }
+        inline const char* list() const { return m_list; }
+
+        void initialize(const wchar_t* list, ICorJitHost* host);
+        void destroy(ICorJitHost* host);
+
+        inline bool isEmpty() const { return m_names == nullptr; }
+        bool contains(const char* methodName, const char* className, CORINFO_SIG_INFO* sigInfo) const;
+    };
+
+private:
+#define CONFIG_INTEGER(name, key, defaultValue) int m_##name;
+#define CONFIG_STRING(name, key) const wchar_t* m_##name;
+#define CONFIG_METHODSET(name, key) MethodSet m_##name;
+#include "jitconfigvalues.h"
+
+public:
+#define CONFIG_INTEGER(name, key, defaultValue) inline int name() const { return m_##name; }
+#define CONFIG_STRING(name, key) inline const wchar_t* name() const { return m_##name; }
+#define CONFIG_METHODSET(name, key) inline const MethodSet& name() const { return m_##name; }
+#include "jitconfigvalues.h"
+
+private:
+    bool m_isInitialized;
+
+    JitConfigValues(const JitConfigValues& other) = delete;
+    JitConfigValues& operator=(const JitConfigValues& other) = delete;
+
+public:
+    JitConfigValues() {}
+
+    inline bool isInitialized() const { return m_isInitialized != 0; }
+    void initialize(ICorJitHost* host);
+    void destroy(ICorJitHost* host);
+};
+
+extern JitConfigValues JitConfig;
+
+#endif