1 files changed, 83 insertions, 0 deletions
diff --git a/gfx/angle/src/compiler/preprocessor/DirectiveParser.h b/gfx/angle/src/compiler/preprocessor/DirectiveParser.h
new file mode 100755
index 000000000..f0e889c8a
--- /dev/null
+++ b/gfx/angle/src/compiler/preprocessor/DirectiveParser.h
@@ -0,0 +1,83 @@
+//
+// 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_DIRECTIVEPARSER_H_
+#define COMPILER_PREPROCESSOR_DIRECTIVEPARSER_H_
+
+#include "compiler/preprocessor/Lexer.h"
+#include "compiler/preprocessor/Macro.h"
+#include "compiler/preprocessor/SourceLocation.h"
+
+namespace pp
+{
+
+class Diagnostics;
+class DirectiveHandler;
+class Tokenizer;
+
+class DirectiveParser : public Lexer
+{
+  public:
+    DirectiveParser(Tokenizer *tokenizer,
+                    MacroSet *macroSet,
+                    Diagnostics *diagnostics,
+                    DirectiveHandler *directiveHandler);
+
+    void lex(Token *token) override;
+
+  private:
+
+    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;
+    bool mSeenNonPreprocessorToken; // Tracks if a non-preprocessor token has been seen yet.  Some macros, such as
+                                    // #extension must be declared before all shader code.
+    std::vector<ConditionalBlock> mConditionalStack;
+    Tokenizer *mTokenizer;
+    MacroSet *mMacroSet;
+    Diagnostics *mDiagnostics;
+    DirectiveHandler *mDirectiveHandler;
+    int mShaderVersion;
+};
+
+}  // namespace pp
+
+#endif  // COMPILER_PREPROCESSOR_DIRECTIVEPARSER_H_