def _eval_subs(self, old, new):
if self == old:
return new
elif isinstance(old, FunctionClass) and isinstance(new, FunctionClass):
if old == self.func and old.nofargs == new.nofargs:
return new(*self[:])
obj = self.func._eval_apply_subs(*(self[:] + (old,) + (new,)))
if obj is not None:
return obj
return Basic._seq_subs(self, old, new)
def _eval_subs(self, old, new):
if self == old:
return new
elif old.is_Function and new.is_Function:
if old == self.func:
if self.nargs is new.nargs or not new.nargs:
return new(*self.args)
# Written down as an elif to avoid a super-long line
elif isinstance(new.nargs,tuple) and self.nargs in new.nargs:
return new(*self.args)
return Basic._seq_subs(self, old, new)
def _eval_subs(self, old, new):
if self == old:
return new
elif old.is_Function and new.is_Function:
if old == self.func:
if self.nargs is new.nargs or not new.nargs:
return new(*self.args)
# Written down as an elif to avoid a super-long line
elif isinstance(new.nargs, tuple) and self.nargs in new.nargs:
return new(*self.args)
return Basic._seq_subs(self, old, new)
def _eval_subs(self, old, new):
if self == old:
return new
elif old.is_Function and new.is_Function:
if old == self.func:
if self.nargs is new.nargs or not new.nargs:
return new(*self.args[:])
# Written down as an elif to avoid a super-long line
elif isinstance(new.nargs,tuple) and self.nargs in new.nargs:
return new(*self.args[:])
obj = self.func._eval_apply_subs(*(self.args[:] + (old,) + (new,)))
if obj is not None:
return obj
return Basic._seq_subs(self, old, new)
def _eval_subs(self, old, new):
if self == old:
return new
elif old.is_Function and new.is_Function:
if old == self.func:
if self.nargs is new.nargs or not new.nargs:
return new(*self.args[:])
# Written down as an elif to avoid a super-long line
elif isinstance(new.nargs, tuple) and self.nargs in new.nargs:
return new(*self.args[:])
obj = self.func._eval_apply_subs(*(self.args[:] + (old, ) + (new, )))
if obj is not None:
return obj
return Basic._seq_subs(self, old, new)