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+//
+// Copyright (c) 2002-2010 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.
+//
+
+#ifndef _SHHANDLE_INCLUDED_
+#define _SHHANDLE_INCLUDED_
+
+//
+// Machine independent part of the compiler private objects
+// sent as ShHandle to the driver.
+//
+// This should not be included by driver code.
+//
+
+#include "GLSLANG/ShaderLang.h"
+
+#include "compiler/InfoSink.h"
+#include "compiler/SymbolTable.h"
+
+class TCompiler;
+class TIntermNode;
+
+//
+// The base class used to back handles returned to the driver.
+//
+class TShHandleBase {
+public:
+ TShHandleBase() { }
+ virtual ~TShHandleBase() { }
+ virtual TCompiler* getAsCompiler() { return 0; }
+};
+
+//
+// The base class for the machine dependent compiler to derive from
+// for managing object code from the compile.
+//
+class TCompiler : public TShHandleBase {
+public:
+ TCompiler(EShLanguage l, EShSpec s) : language(l), spec(s) { }
+ virtual ~TCompiler() { }
+
+ EShLanguage getLanguage() const { return language; }
+ EShSpec getSpec() const { return spec; }
+ TSymbolTable& getSymbolTable() { return symbolTable; }
+ TInfoSink& getInfoSink() { return infoSink; }
+
+ virtual bool compile(TIntermNode* root) = 0;
+
+ virtual TCompiler* getAsCompiler() { return this; }
+
+protected:
+ EShLanguage language;
+ EShSpec spec;
+
+ // Built-in symbol table for the given language, spec, and resources.
+ // It is preserved from compile-to-compile.
+ TSymbolTable symbolTable;
+ // Output sink.
+ TInfoSink infoSink;
+};
+
+//
+// This is the interface between the machine independent code
+// and the machine dependent code.
+//
+// The machine dependent code should derive from the classes
+// above. Then Construct*() and Delete*() will create and
+// destroy the machine dependent objects, which contain the
+// above machine independent information.
+//
+TCompiler* ConstructCompiler(EShLanguage, EShSpec);
+void DeleteCompiler(TCompiler*);
+
+#endif // _SHHANDLE_INCLUDED_