old_contents: # 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.StatementAST import StatementAST
  from slicc.symbols import Type
  
  class ExprStatementAST(StatementAST):
      def __init__(self, slicc, expr):
          super(ExprStatementAST, self).__init__(slicc)
          self.expr = expr
  
      def __repr__(self):
          return "[ExprStatementAST: %s]" % (self.expr)
  
      def generate(self, code, return_type):
          actual_type,rcode = self.expr.inline(True)
          code("$rcode;")
  
          # The return type must be void
          if actual_type != self.symtab.find("void", Type):
              self.expr.warning("Non-void return ignored, " + \
                  "return type is '%s'", actual_type.ident)
  
      def findResources(self, resources):
          self.expr.findResources(resources)
  
  
new_contents: # 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
  # 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.StatementAST import StatementAST
  from slicc.ast.LocalVariableAST import LocalVariableAST
  from slicc.symbols import Type
  
  class ExprStatementAST(StatementAST):
      def __init__(self, slicc, expr):
          super(ExprStatementAST, self).__init__(slicc)
          self.expr = expr
  
      def __repr__(self):
          return "[ExprStatementAST: %s]" % (self.expr)
  
      def generate(self, code, return_type):
          actual_type,rcode = self.expr.inline(True)
          code("$rcode;")
  
          # 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)
  
      def findResources(self, resources):
          self.expr.findResources(resources)
  
  
subject: support for local variable declarations in action blocks