xref: /gem5/src/mem/slicc/ast/TypeFieldEnumAST.py

# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
# Copyright (c) 2009 The Hewlett-Packard Development Company
# All rights reserved.
#
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# redistributions in binary form must reproduce the above copyright
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# neither the name of the copyright holders nor the names of its
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from slicc.ast.TypeFieldAST import TypeFieldAST
from slicc.symbols import Event, State

class TypeFieldEnumAST(TypeFieldAST):
    def __init__(self, slicc, field_id, pairs_ast):
        super(TypeFieldEnumAST, self).__init__(slicc, pairs_ast)

        self.field_id = field_id
        self.pairs_ast = pairs_ast

    def __repr__(self):
        return "[TypeFieldEnum: %r]" % self.field_id

    def generate(self, type):
        # Add enumeration
        if not type.enumAdd(self.field_id, self.pairs_ast.pairs):
            error("Duplicate enumeration: %s:%s" % (type, self.field_id))

        # Fill machine info
        machine = self.symtab.state_machine

        if str(type) == "State":
            if not machine:
                error("State declaration not part of a machine.")
            s = State(self.symtab, self.field_id, self.location, self.pairs)
            machine.addState(s)

        if str(type) == "Event":
            if not machine:
                error("Event declaration not part of a machine.")
            e = Event(self.symtab, self.field_id, self.location, self.pairs)
            machine.addEvent(e)