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slicc: support for local variable declarations in action blocks

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This commit is contained in:
David Hashe 2015-07-20 09:15:18 -05:00
parent 1850ed410f
commit 9324239922
1 changed files with 5 additions and 2 deletions
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7
src/mem/slicc/ast/ExprStatementAST.py
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@ -1,5 +1,6 @@
# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
# Copyright (c) 2009 The Hewlett-Packard Development Company
# Copyright (c) 2013 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
@ -26,6 +27,7 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from slicc.ast.StatementAST import StatementAST
from slicc.ast.LocalVariableAST import LocalVariableAST
from slicc.symbols import Type
class ExprStatementAST(StatementAST):
@ -40,8 +42,9 @@ class ExprStatementAST(StatementAST):
actual_type,rcode = self.expr.inline(True)
code("$rcode;")
# The return type must be void
if actual_type != self.symtab.find("void", Type):
# The return type must be void, except for local var decls
if (not isinstance(self.expr, LocalVariableAST) and
actual_type != self.symtab.find("void", Type)):
self.expr.warning("Non-void return ignored, " + \
"return type is '%s'", actual_type.ident)