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from org.python.parser import Visitor
from org.python.parser.PythonGrammarTreeConstants import *
import string, org
class FreezeVisitor(Visitor):
def __init__(self, events, props, packages=None, classes=None, proxies=None,
classname=None):
if packages is None:
self.packages = {}
else:
self.packages = packages
if classes is None:
self.classes = {}
else:
self.classes = classes
if proxies is None:
self.proxies = {}
else:
self.proxies = proxies
self.events = events
self.props = props
self.classname = classname
self.realclass = None
self.methods = []
self.addMethods = 0
def suite(self, node):
for i in range(node.numChildren):
node.getChild(i).visit(self)
def pass_stmt(self, node):
pass
print_stmt = del_stmt = break_stmt = continue_stmt = pass_stmt
return_stmt = raise_stmt = global_stmt = exec_stmt = pass_stmt
assert_stmt = lambdef = pass_stmt
Int = Float = Complex = String = pass_stmt
Slice = Ellipsis = list = dictionary = tuple = pass_stmt
str_1op = __add__2op = pass_stmt
add_2op = sub_2op = mul_2op = div_2op = mod_2op = pow_2op = pass_stmt
and_2op = or_2op = xor_2op = lshift_2op = rshift_2op = pass_stmt
pos_1op = neg_1op = invert_1op = pass_stmt
comparision = pass_stmt
Index_Op = pass_stmt
def funcdef(self, node):
if self.addMethods:
self.methods.append(node.getChild(0).visit(self))
self.suite(node.getChild(node.numChildren-1))
def lhs_dot(self, node):
#print 'lhs', node, node.id
if node.id == JJTNAME:
name = node.getInfo()
#print 'name', name
self.props[name] = 1
if node.id != JJTDOT_OP: return
self.lhs_dot(node.getChild(1))
def expr_stmt(self, node):
rhs = node.getChild(node.numChildren-1)
rhs.visit(self)
for i in range(node.numChildren-1):
lhs = node.getChild(i)
self.lhs_dot(lhs)
def classdef(self, node):
name = node.getChild(0).visit(self)
n = node.numChildren
suite = node.getChild(n-1)
bases = []
for i in range(1,n-1):
child = node.getChild(i)
base = child.visit(self)
#print name, base
#if self.classname == name:
# print self.classes
if self.classes.has_key(base):
self.classes[name] = self.classes[base]
#print self.classname, name, self.realclass, base
if self.classname == name and self.realclass is None:
self.realclass = self.classes[base]
self.addMethods = 1
else:
self.proxies[base] = self.classes[base]
#print name, bases
suite.visit(self)
self.addMethods = 0
def addEvent(self, c):
self.proxies[c.__name__] = c
def Call_Op(self, node):
name = node.getChild(0).visit(self)
if name is None or node.numChildren == 1: return
if self.classes.has_key(name):
c = self.classes[name]
else:
return
args = node.getChild(1).visit(self)
for arg in args:
if isinstance(arg, type( () )) and len(arg) == 2:
kw, v = arg
if hasattr(c, kw):
a = getattr(c, kw)
if isinstance(a, org.python.core.PyBeanEventProperty):
self.addEvent(a.myClass)
#print name, args
def arglist(self, node):
args = []
for i in range(node.numChildren):
args.append(node.getChild(i).visit(self))
return args
def Keyword(self, node):
return node.getChild(0).visit(self), node.getChild(1).visit(self)
def Dot_Op(self, node):
n1, n2 = node.getChild(0).visit(self), node.getChild(1).visit(self)
if n1 is None: return
if self.packages.has_key(n1):
ret = getattr(self.packages[n1], n2)
name = ret.__name__
self.addClass(name, ret)
return name
def if_stmt(self, node):
for i in range(node.numChildren):
if i%2 == 1 or i == node.numChildren-1:
node.getChild(i).visit(self)
def while_stmt(self, node):
node.getChild(1).visit(self)
if node.numChildren == 3:
node.getChild(2).visit(self)
def for_stmt(self, node):
self.while_stmt(node)
def try_stmt(self, node):
for i in range(node.numChildren):
if i%2 == 1 and i != node.numChildren-1:
continue
node.getChild(i).visit(self)
def addEvents(self, c):
for base in c.__bases__:
self.addClass(None, base)
#print 'events', c, dir(c)
for key, value in c.__dict__.items():
#print key, value
if isinstance(value, org.python.core.PyBeanEventProperty):
#print 'event', key, value
self.events[key] = value.myClass
#self.addEvent(value.myClass)
def addClass(self, name, c):
#print 'add class', name, c, c.__class__
if name is None: name = c.__name__
if (isinstance(c, org.python.core.PyJavaPackage) or
isinstance(c, org.python.core.PyModule)):
self.packages[name] = c
elif isinstance(c, org.python.core.PyClass):
#print 'instance', name, c, self.classes.has_key(name)
doEvents = not self.classes.has_key(name)
self.classes[name] = c
name = c.__name__
if doEvents:
self.classes[name] = c
self.addEvents(c)
def Import(self, node):
for i in range(node.numChildren):
name = node.getChild(i).visit(self)
self.addClass(string.split(name, '.')[0], __import__(name))
def ImportFrom(self, node):
root = node.getChild(0).visit(self)
#print root
rootclass = __import__(root)
attrs = string.split(root, '.')[1:]
#print root, rootclass
for attr in attrs:
rootclass = getattr(rootclass, attr)
#print root, rootclass
self.addClass(root, rootclass)
#print rootclass
for i in range(1, node.numChildren):
name = node.getChild(i).visit(self)
#print rootclass, name
c = getattr(rootclass, name)
self.addClass(name, c)
def dotted_name(self, node):
l = []
for i in range(node.numChildren):
l.append(node.getChild(i).visit(self))
return string.join(l, '.')
def Name(self, node):
return node.getInfo()
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