def __init__(self, parent=None, ast=None):
if not ast:
ast = ogAST.Terminator(defName='')
ast.pos_y = 0
ast.width = 35
ast.height = 35
super(ProcedureStop, self).__init__(parent, ast)
def __init__(self, parent=None, ast=None):
if not ast:
ast = ogAST.Terminator(defName='')
ast.pos_y = 0
ast.width = 35
ast.height = 35
super(Join, self).__init__(parent,
text=ast.inputString,
x=ast.pos_x,
y=ast.pos_y,
hyperlink=ast.hyperlink)
self.set_shape(ast.width, ast.height)
self.setPen(QPen(Qt.blue))
self.terminal_symbol = True
self.parser = ogParser
def find_labels(trans):
'''
Yield a list of transition actions whenever a label is found
Used to transform labels into floating labels so that the gotos
in a backend can be contained within a single scope.
'''
if not trans:
return
# Terminators can have a label - add it to the transition actions
# (to trigger a goto at code generation)
if trans.terminator and trans.terminator.label:
trans.actions.append(trans.terminator.label)
trans.terminator.label = None
# Then for each action, check if there are labels and yield
# a new transition with the remaining actions (following the label)
for idx, action in enumerate(trans.actions):
if isinstance(action, ogAST.Label):
new_trans = ogAST.Transition()
# Create a floating label
flab = ogAST.Floating_label(label=action)
new_trans.actions = \
trans.actions[slice(idx + 1, len(trans.actions))]
new_trans.terminator = trans.terminator
new_trans.terminators = trans.terminators
flab.transition = new_trans
# Transform the label into a JOIN in the original transition
trans.actions[idx:] = []
trans.terminator = ogAST.Terminator()
trans.terminator.inputString = action.inputString
trans.terminator.kind = 'join'
# Recursively find labels in the new transition
for flabel in find_labels(flab.transition):
yield flabel
# Then yield the new transition
yield flab
elif isinstance(action, ogAST.Decision):
for answer in action.answers:
for new_fl in find_labels(answer.transition):
# Append the remaining actions of the transition
if not new_fl.transition.terminator:
new_fl.transition.actions.extend(trans.actions[slice(
idx + 1, len(trans.actions))])
new_fl.transition.terminator = trans.terminator
yield new_fl
