1 files changed, 48 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/preprocessor/ExpressionParser.h b/gfx/angle/checkout/src/compiler/preprocessor/ExpressionParser.h
new file mode 100644
index 0000000000..c5cd7f7d8b
--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/preprocessor/ExpressionParser.h
@@ -0,0 +1,48 @@
+//
+// 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_EXPRESSIONPARSER_H_
+#define COMPILER_PREPROCESSOR_EXPRESSIONPARSER_H_
+
+#include "common/angleutils.h"
+#include "compiler/preprocessor/DiagnosticsBase.h"
+
+namespace angle
+{
+
+namespace pp
+{
+
+class Lexer;
+struct Token;
+
+class ExpressionParser : angle::NonCopyable
+{
+  public:
+    struct ErrorSettings
+    {
+        Diagnostics::ID unexpectedIdentifier;
+        bool integerLiteralsMustFit32BitSignedRange;
+    };
+
+    ExpressionParser(Lexer *lexer, Diagnostics *diagnostics);
+
+    bool parse(Token *token,
+               int *result,
+               bool parsePresetToken,
+               const ErrorSettings &errorSettings,
+               bool *valid);
+
+  private:
+    Lexer *mLexer;
+    Diagnostics *mDiagnostics;
+};
+
+}  // namespace pp
+
+}  // namespace angle
+
+#endif  // COMPILER_PREPROCESSOR_EXPRESSIONPARSER_H_