def visitTimedEventually(self, element, args):
horizon = args[0] - element.end
node = self.visit(element.children[0], [horizon])
begin = 0
end = element.end - element.begin
if end > 0:
node = TimedOnce(node, begin, end)
return node
def visitExpreOnce(self, ctx):
child = self.visit(ctx.expression())
if ctx.interval() == None:
node = Once(child)
else:
interval = self.visit(ctx.interval())
node = TimedOnce(child, interval.begin, interval.end)
node.horizon = child.horizon
return node
def test_complex_past_2(self):
var_node_1 = Variable('req', '', 'output')
var_node_2 = Variable('gnt', '', 'output')
rise_node = Rise(var_node_1)
hist_node = Historically(var_node_2)
once_node = TimedOnce(hist_node, 1, 2)
add_node = TimedSince(rise_node, once_node, 2, 6)
add_node.horizon = 0
pastifier = STLPastifier()
add_node.accept(pastifier)
new_node = pastifier.pastify(add_node)
self.assertEqual('(rise(req))since[2,6](once[1,2](historically(gnt)))', new_node.name, 'Complex pastification assertion')
def test_complex_mixed_2(self):
var_node_1 = Variable('req', '', 'output')
var_node_2 = Variable('gnt', '', 'output')
ev_node = TimedEventually(var_node_1, 5, 6)
once_node = TimedOnce(var_node_2, 1, 2)
alw_node = TimedAlways(once_node, 3, 3)
add_node = Implies(ev_node, alw_node)
add_node.horizon = 6
pastifier = STLPastifier()
add_node.accept(pastifier)
new_node = pastifier.pastify(add_node)
self.assertEqual('(once[0,1](req))->(once[1,2](once[3,3](gnt)))', new_node.name, 'Complex pastification assertion')
def test_once_0_1(self):
var_node = Variable('req', '', 'output')
node = TimedOnce(var_node, 0, 1)
pastifier = STLPastifier()
node.accept(pastifier)
new_node = pastifier.pastify(node)
self.assertEqual('once[0,1](req)', new_node.name, 'Once pastification assertion')
node.horizon = 5
pastifier = STLPastifier()
node.accept(pastifier)
new_node = pastifier.pastify(node)
self.assertEqual('once[0,1](once[5,5](req))', new_node.name, 'Once pastification assertion')
def visitTimedOnce(self, element, args):
child_node = self.visit(element.children[0], args)
node = TimedOnce(child_node, element.begin, element.end)
return node
def visitVariable(self, element, args):
horizon = args[0]
node = Variable(element.var, element.field, element.io_type)
if horizon > 0:
node = TimedOnce(node, horizon, horizon)
return node