ApplyResult Class Reference

Inheritance diagram for ApplyResult:

Public Member Functions
def	__init__ (self, result, ctx)
def	__deepcopy__
def	__del__ (self)
def	__len__ (self)
def	__getitem__ (self, idx)
def	__repr__ (self)
def	sexpr (self)
def	as_expr (self)
Public Member Functions inherited from Z3PPObject
def	use_pp (self)

Data Fields
	result
	ctx

Detailed Description

An ApplyResult object contains the subgoals produced by a tactic when applied to a goal.
It also contains model and proof converters.

Definition at line 8435 of file z3py.py.

Constructor & Destructor Documentation

def __init__	(		self,
			result,
			ctx
	)

Definition at line 8440 of file z3py.py.

    def __init__(self, result, ctx):
        self.result = result
        self.ctx = ctx
        Z3_apply_result_inc_ref(self.ctx.ref(), self.result)

def __del__

(

self

)

Definition at line 8448 of file z3py.py.

    def __del__(self):
        if self.ctx.ref() is not None and Z3_apply_result_dec_ref is not None:
            Z3_apply_result_dec_ref(self.ctx.ref(), self.result)

Member Function Documentation

def __deepcopy__	(		self,
			memo = {}
	)

Definition at line 8445 of file z3py.py.

    def __deepcopy__(self, memo={}):
        return ApplyResult(self.result, self.ctx)

def __getitem__	(		self,
			idx
	)

Return one of the subgoals stored in ApplyResult object `self`.

>>> a, b = Ints('a b')
>>> g = Goal()
>>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
>>> t = Tactic('split-clause')
>>> r = t(g)
>>> r[0]
[a == 0, Or(b == 0, b == 1), a > b]
>>> r[1]
[a == 1, Or(b == 0, b == 1), a > b]

Definition at line 8471 of file z3py.py.

    def __getitem__(self, idx):
        """Return one of the subgoals stored in ApplyResult object `self`.

        >>> a, b = Ints('a b')
        >>> g = Goal()
        >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
        >>> t = Tactic('split-clause')
        >>> r = t(g)
        >>> r[0]
        [a == 0, Or(b == 0, b == 1), a > b]
        >>> r[1]
        [a == 1, Or(b == 0, b == 1), a > b]
        """
        if idx < 0:
            idx += len(self)
        if idx < 0 or idx >= len(self):
            raise IndexError
        return Goal(goal=Z3_apply_result_get_subgoal(self.ctx.ref(), self.result, idx), ctx=self.ctx)

def __len__

(

self

)

Return the number of subgoals in `self`.

>>> a, b = Ints('a b')
>>> g = Goal()
>>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
>>> t = Tactic('split-clause')
>>> r = t(g)
>>> len(r)
2
>>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
>>> len(t(g))
4
>>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
>>> len(t(g))
1

Definition at line 8452 of file z3py.py.

    def __len__(self):
        """Return the number of subgoals in `self`.

        >>> a, b = Ints('a b')
        >>> g = Goal()
        >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
        >>> t = Tactic('split-clause')
        >>> r = t(g)
        >>> len(r)
        2
        >>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
        >>> len(t(g))
        4
        >>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
        >>> len(t(g))
        1
        """
        return int(Z3_apply_result_get_num_subgoals(self.ctx.ref(), self.result))

def __repr__

(

self

)

Definition at line 8490 of file z3py.py.

    def __repr__(self):
        return obj_to_string(self)

def as_expr

(

self

)

Return a Z3 expression consisting of all subgoals.

>>> x = Int('x')
>>> g = Goal()
>>> g.add(x > 1)
>>> g.add(Or(x == 2, x == 3))
>>> r = Tactic('simplify')(g)
>>> r
[[Not(x <= 1), Or(x == 2, x == 3)]]
>>> r.as_expr()
And(Not(x <= 1), Or(x == 2, x == 3))
>>> r = Tactic('split-clause')(g)
>>> r
[[x > 1, x == 2], [x > 1, x == 3]]
>>> r.as_expr()
Or(And(x > 1, x == 2), And(x > 1, x == 3))

Definition at line 8497 of file z3py.py.

    def as_expr(self):
        """Return a Z3 expression consisting of all subgoals.

        >>> x = Int('x')
        >>> g = Goal()
        >>> g.add(x > 1)
        >>> g.add(Or(x == 2, x == 3))
        >>> r = Tactic('simplify')(g)
        >>> r
        [[Not(x <= 1), Or(x == 2, x == 3)]]
        >>> r.as_expr()
        And(Not(x <= 1), Or(x == 2, x == 3))
        >>> r = Tactic('split-clause')(g)
        >>> r
        [[x > 1, x == 2], [x > 1, x == 3]]
        >>> r.as_expr()
        Or(And(x > 1, x == 2), And(x > 1, x == 3))
        """
        sz = len(self)
        if sz == 0:
            return BoolVal(False, self.ctx)
        elif sz == 1:
            return self[0].as_expr()
        else:
            return Or([self[i].as_expr() for i in range(len(self))])

def sexpr

(

self

)

Return a textual representation of the s-expression representing the set of subgoals in `self`.

Definition at line 8493 of file z3py.py.

    def sexpr(self):
        """Return a textual representation of the s-expression representing the set of subgoals in `self`."""
        return Z3_apply_result_to_string(self.ctx.ref(), self.result)

Field Documentation

ctx

Definition at line 8442 of file z3py.py.

Referenced by ApplyResult.__deepcopy__(), Simplifier.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), Probe.__eq__(), Probe.__ge__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), Probe.__lt__(), Probe.__ne__(), Simplifier.add(), Tactic.apply(), ApplyResult.as_expr(), ParserContext.from_string(), Simplifier.param_descrs(), Tactic.param_descrs(), Tactic.solver(), and Simplifier.using_params().

result

Definition at line 8441 of file z3py.py.

Referenced by ApplyResult.__deepcopy__(), ApplyResult.__del__(), ApplyResult.__getitem__(), ApplyResult.__len__(), and ApplyResult.sexpr().