1 files changed, 53 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/EnumExprAST.py b/src/mem/slicc/ast/EnumExprAST.py
new file mode 100644
index 000000000..9cb76a8a1
--- /dev/null
+++ b/src/mem/slicc/ast/EnumExprAST.py
@@ -0,0 +1,53 @@
+# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+# Copyright (c) 2009 The Hewlett-Packard Development Company
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from slicc.ast.ExprAST import ExprAST
+
+class EnumExprAST(ExprAST):
+    def __init__(self, slicc, type_ast, value):
+        super(EnumExprAST, self).__init__(slicc)
+
+        assert type_ast
+        assert value
+
+        self.type_ast = type_ast
+        self.value = value
+
+    def __repr__(self):
+        return "[EnumExpr: %s:%s]" % (self.type_ast, self.value)
+
+    def generate(self, code):
+        fix = code.nofix()
+        code('${{self.type_ast.type.c_ident}}_${{self.value}}')
+        code.fix(fix)
+
+        # Make sure the enumeration value exists
+        if self.value not in self.type_ast.type.enums:
+            self.error("Type '%s' does not have enumeration '%s'",
+                       self.type_ast, self.value)
+
+        return self.type_ast.type