def _terminator(ast, scene, parent, states):
''' Create a TERMINATOR symbol '''
if ast.label:
# pylint: disable=E1111
parent = render(ast.label, scene=scene, parent=parent, states=states)
if ast.kind == 'next_state':
LOG.debug('ADDING NEXT_STATE ' + ast.inputString)
# Create a new state symbol
symbol = sdlSymbols.State(parent=parent, ast=ast)
# If the terminator is also a new state, render the inputs below
LOG.debug('STATELIST:' + str([st.inputString for st in states]))
for state_ast in states:
if (state_ast.inputString == ast.inputString
and state_ast.pos_x == ast.pos_x
and state_ast.pos_y == ast.pos_y):
LOG.debug('MERGING TERMINATOR "' + ast.inputString + '"')
symbol.nested_scene = state_ast.composite or \
ogAST.CompositeState()
for each in chain(state_ast.inputs, state_ast.connects):
render(each, scene=scene, parent=symbol, states=states)
break
symbol.nested_scene = ast.composite or ogAST.CompositeState()
elif ast.kind == 'join':
symbol = sdlSymbols.Join(parent, ast)
elif ast.kind in ('return', 'stop'):
symbol = sdlSymbols.ProcedureStop(parent, ast)
else:
raise TypeError('Unsupported terminator: ' + repr(ast))
return symbol
def _state(ast, scene, states, terminators, parent=None):
''' Render a floating state and its inputs '''
_ = parent
# Discard the state if it is a terminator too as it is not a floating
# state in that case: it will be rendered together with all its (possible)
# INPUT children in the render_terminator function.
for term in terminators:
if (term.kind == 'next_state' and term.pos_x == ast.pos_x
and term.pos_y == ast.pos_y
and term.inputString == ast.inputString):
raise TypeError('This state is a terminator')
new_state = sdlSymbols.State(parent=None, ast=ast)
if new_state not in scene.items():
add_to_scene(new_state, scene)
for exit in chain(ast.inputs, ast.connects):
render(exit, scene=scene, parent=new_state, states=states)
new_state.nested_scene = ast.composite or ogAST.CompositeState()
return new_state
