merge

1 files changed, 55 insertions, 0 deletions

diff --git a/src/mem/slicc/ast/MemberExprAST.py b/src/mem/slicc/ast/MemberExprAST.py
new file mode 100644
index 000000000..c62e28741
--- /dev/null
+++ b/src/mem/slicc/ast/MemberExprAST.py
@@ -0,0 +1,55 @@
+# 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 m5.util import code_formatter
+
+from slicc.ast.ExprAST import ExprAST
+
+class MemberExprAST(ExprAST):
+    def __init__(self, slicc, expr_ast, field):
+        super(MemberExprAST, self).__init__(slicc)
+
+        self.expr_ast = expr_ast
+        self.field = field
+
+    def __repr__(self):
+        return "[MemberExprAST: %r.%r]" % (self.expr_ast, self.field)
+
+    def generate(self, code):
+        return_type, gcode = self.expr_ast.inline(True)
+        fix = code.nofix()
+        code("($gcode).m_${{self.field}}")
+        code.fix(fix)
+
+        # Verify that this is a valid field name for this type
+        if self.field not in return_type.data_members:
+            self.error("Invalid object field: " +
+                       "Type '%s' does not have data member %s" % \
+                       (return_type, self.field))
+
+        # Return the type of the field
+        return return_type.data_members[self.field].type