ApplyResult Class Reference

Inheritance diagram for ApplyResult:

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

Data Fields
	result = result
	ctx = ctx

Additional Inherited Members
Protected Member Functions inherited from Z3PPObject
	_repr_html_ (self)

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 8396 of file z3py.py.

Constructor & Destructor Documentation

__init__()

__init__	(		self,
			result,
			ctx )

Definition at line 8401 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)
 

__del__()

__del__

(

self

)

Definition at line 8409 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

__deepcopy__()

__deepcopy__	(		self,
			memo = {} )

Definition at line 8406 of file z3py.py.

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

__getitem__()

__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 8432 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)
 

__len__()

__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 8413 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))
 

__repr__()

__repr__

(

self

)

Definition at line 8451 of file z3py.py.

    def __repr__(self):
        return obj_to_string(self)
 

as_expr()

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 8458 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))])
 

sexpr()

sexpr

(

self

)

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

Definition at line 8454 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

ctx = ctx

Definition at line 8403 of file z3py.py.

result

result = result

Definition at line 8402 of file z3py.py.