def parse_string(calculation_string):
"""
Wandelt mit Hilfe der ast2json-Bibliothek einen String in einen abstrakten Syntaxbaum. Kann auch zur Überprüfung der Syntax einer Formel genutzt werden.
:param calculation_string: Stringrepräsentation einer Formel
:type calculation_string: str
:return: Formel als abstrakter Syntaxbaum (Dictionary) repräsentiert
"""
try:
return str2json(calculation_string)
except Exception:
return None
def get_value(attr_value):
if attr_value is None:
return attr_value
if isinstance(attr_value, (int, str, float, complex, bool)):
return attr_value
if isinstance(attr_value, list) or isinstance(attr_value, tuple):
return [get_value(x) for x in attr_value]
if isinstance(attr_value, dict):
return attr_value
if isinstance(attr_value, renpy.ast.Node):
return node2json(attr_value)
if isinstance(attr_value, renpy.ast.PyCode):
return {
"source": attr_value.source,
"ast": ast2json.str2json(attr_value.source)
}
if isinstance(attr_value, renpy.ast.ArgumentInfo):
return list(map(lambda x: getattr(attr_value, x), ["arguments", "extrapos", "extrakw"]))
if isinstance(attr_value, renpy.atl.RawBlock):
return 'ATL not implemented'
raise Exception("I don't know how to decompile '%s' of type '%s'!" % (attr_value, type(attr_value)))
def get_node_text(self, node):
l1 = node['lineno']
l2 = node['end_lineno']
c1 = node['col_offset']
c2 = node['end_col_offset']
return self.subset_program_text(l1, c1, l2, c2)
def format_lineno(self, node):
return "At line " + str(node['lineno']) + " :"
if __name__ == '__main__':
file_name = sys.argv[1]
with open(file_name, 'r') as f:
program = f.read()
program_ast = ast2json.str2json(program)
syntax_checker = Syntax_Checker()
syntax_checker.visit_Module(program_ast, program)
grapher = GraphGenerator()
grapher.visit_Module(program_ast, program)
fva = FaintVariableAnalyzer(grapher.graph)
fva.run_optimizer()
print("Completed faint variable analysis.")
printer = OptimizedPrinter()
printer.visit_Module(program_ast, program)
if len(sys.argv) == 2:
output_filename, _ = os.path.splitext(file_name)
output_filename += "_optimized.py"
elif len(sys.argv) == 3:
output_filename = sys.argv[2]
