1# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
2# Copyright (c) 2009 The Hewlett-Packard Development Company
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met: redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer;

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25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28from slicc.ast.DeclAST import DeclAST
29from slicc.ast.TypeAST import TypeAST
30from slicc.symbols import Func, Type, Var
31
32class InPortDeclAST(DeclAST):
33 max_port_rank = 0
34
35 def __init__(self, slicc, ident, msg_type, var_expr, pairs, statements):
36 super(InPortDeclAST, self).__init__(slicc, pairs)
37
38 self.ident = ident
39 self.msg_type = msg_type
40 self.var_expr = var_expr
41 self.statements = statements
42 self.queue_type = TypeAST(slicc, "InPort")
43 if self.pairs.has_key("rank"):
44 InPortDeclAST.max_port_rank = max(self.pairs["rank"],
45 InPortDeclAST.max_port_rank)
46
47 def __repr__(self):
48 return "[InPortDecl: %s]" % self.ident
49
50 def generate(self):
51 symtab = self.symtab
52 void_type = symtab.find("void", Type)
53

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115 rcode.indent()
116 self.statements.generate(rcode, None)
117 in_port["c_code_in_port"] = str(rcode)
118
119 symtab.popFrame()
120
121 # Add port to state machine
122 machine.addInPort(in_port)
123
124 # Include max_rank to be used by StateMachine.py
125 in_port["max_port_rank"] = InPortDeclAST.max_port_rank