diff -r 000000000000 -r 6474c204b198 gfx/angle/src/compiler/preprocessor/DirectiveParser.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/angle/src/compiler/preprocessor/DirectiveParser.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,82 @@
+//
+// Copyright (c) 2012 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 COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
+#define COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
+
+#include "Lexer.h"
+#include "Macro.h"
+#include "pp_utils.h"
+#include "SourceLocation.h"
+
+namespace pp
+{
+
+class Diagnostics;
+class DirectiveHandler;
+class Tokenizer;
+
+class DirectiveParser : public Lexer
+{
+  public:
+    DirectiveParser(Tokenizer* tokenizer,
+                    MacroSet* macroSet,
+                    Diagnostics* diagnostics,
+                    DirectiveHandler* directiveHandler);
+
+    virtual void lex(Token* token);
+
+  private:
+    PP_DISALLOW_COPY_AND_ASSIGN(DirectiveParser);
+
+    void parseDirective(Token* token);
+    void parseDefine(Token* token);
+    void parseUndef(Token* token);
+    void parseIf(Token* token);
+    void parseIfdef(Token* token);
+    void parseIfndef(Token* token);
+    void parseElse(Token* token);
+    void parseElif(Token* token);
+    void parseEndif(Token* token);
+    void parseError(Token* token);
+    void parsePragma(Token* token);
+    void parseExtension(Token* token);
+    void parseVersion(Token* token);
+    void parseLine(Token* token);
+
+    bool skipping() const;
+    void parseConditionalIf(Token* token);
+    int parseExpressionIf(Token* token);
+    int parseExpressionIfdef(Token* token);
+
+    struct ConditionalBlock
+    {
+        std::string type;
+        SourceLocation location;
+        bool skipBlock;
+        bool skipGroup;
+        bool foundValidGroup;
+        bool foundElseGroup;
+
+        ConditionalBlock() :
+            skipBlock(false),
+            skipGroup(false),
+            foundValidGroup(false),
+            foundElseGroup(false)
+        {
+        }
+    };
+    bool mPastFirstStatement;
+    std::vector<ConditionalBlock> mConditionalStack;
+    Tokenizer* mTokenizer;
+    MacroSet* mMacroSet;
+    Diagnostics* mDiagnostics;
+    DirectiveHandler* mDirectiveHandler;
+};
+
+}  // namespace pp
+#endif  // COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
+