1 files changed, 58 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/SymbolUniqueId.h b/gfx/angle/checkout/src/compiler/translator/SymbolUniqueId.h
new file mode 100644
index 0000000000..7e0312d054
--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/translator/SymbolUniqueId.h
@@ -0,0 +1,58 @@
+//
+// Copyright 2017 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// SymbolUniqueId.h: Encapsulates a unique id for a symbol.
+
+#ifndef COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_
+#define COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_
+
+#include "compiler/translator/Common.h"
+
+namespace sh
+{
+
+class TSymbolTable;
+class TSymbol;
+
+class TSymbolUniqueId
+{
+  public:
+    POOL_ALLOCATOR_NEW_DELETE
+    explicit TSymbolUniqueId(const TSymbol &symbol);
+    constexpr TSymbolUniqueId(const TSymbolUniqueId &) = default;
+    TSymbolUniqueId &operator                          =(const TSymbolUniqueId &);
+    bool operator==(const TSymbolUniqueId &) const;
+
+    constexpr int get() const { return mId; }
+
+  private:
+    friend class TSymbolTable;
+    explicit TSymbolUniqueId(TSymbolTable *symbolTable);
+
+    friend class BuiltInId;
+    constexpr TSymbolUniqueId(int staticId) : mId(staticId) {}
+
+    int mId;
+};
+
+enum class SymbolType : uint8_t
+{
+    BuiltIn,
+    UserDefined,
+    AngleInternal,
+    Empty  // Meaning symbol without a name.
+};
+
+enum class SymbolClass : uint8_t
+{
+    Function,
+    Variable,
+    Struct,
+    InterfaceBlock
+};
+
+}  // namespace sh
+
+#endif  // COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_