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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24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.StatementAST import StatementAST
29from slicc.symbols import Var
30
31class PeekStatementAST(StatementAST):
32 def __init__(self, slicc, queue_name, type_ast, statements, method):
33 super(PeekStatementAST, self).__init__(slicc)
34
35 self.queue_name = queue_name
36 self.type_ast = type_ast
37 self.statements = statements
38 self.method = method
39
40 def __repr__(self):
41 return "[PeekStatementAST: %r queue_name: %r type: %r %r]" % \

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58 mtid = msg_type.ident
59 qcode = self.queue_name.var.code
60 code('''
61{
62 const $mtid* in_msg_ptr;
63 in_msg_ptr = dynamic_cast<const $mtid *>(($qcode).${{self.method}}());
64 assert(in_msg_ptr != NULL);
65''')
66
67 # The other statements
68 self.statements.generate(code, return_type)
69 self.symtab.popFrame()
70 code("}")
71
72 def findResources(self, resources):
73 self.statements.findResources(resources)