AstVector Class Reference

Inheritance diagram for AstVector:

Public Member Functions
	__init__ (self, v=None, ctx=None)
	__del__ (self)
	__len__ (self)
	__getitem__ (self, i)
	__setitem__ (self, i, v)
	push (self, v)
	resize (self, sz)
	__contains__ (self, item)
	translate (self, other_ctx)
	__copy__ (self)
	__deepcopy__ (self, memo={})
	__repr__ (self)
	sexpr (self)
Public Member Functions inherited from Z3PPObject
	use_pp (self)

Data Fields
	vector = None
	ctx = _get_ctx(ctx)

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

Detailed Description

A collection (vector) of ASTs.

Definition at line 6586 of file z3py.py.

Constructor & Destructor Documentation

__init__()

__init__	(		self,
			v = None,
			ctx = None )

Definition at line 6589 of file z3py.py.

    def __init__(self, v=None, ctx=None):
        self.vector = None
        if v is None:
            self.ctx = _get_ctx(ctx)
            self.vector = Z3_mk_ast_vector(self.ctx.ref())
        else:
            self.vector = v
            assert ctx is not None
            self.ctx = ctx
        Z3_ast_vector_inc_ref(self.ctx.ref(), self.vector)
 

__del__()

__del__

(

self

)

Definition at line 6600 of file z3py.py.

    def __del__(self):
        if self.vector is not None and self.ctx.ref() is not None and Z3_ast_vector_dec_ref is not None:
            Z3_ast_vector_dec_ref(self.ctx.ref(), self.vector)
 

Member Function Documentation

__contains__()

__contains__	(		self,
			item )

Return `True` if the vector contains `item`.

>>> x = Int('x')
>>> A = AstVector()
>>> x in A
False
>>> A.push(x)
>>> x in A
True
>>> (x+1) in A
False
>>> A.push(x+1)
>>> (x+1) in A
True
>>> A
[x, x + 1]

Definition at line 6711 of file z3py.py.

    def __contains__(self, item):
        """Return `True` if the vector contains `item`.
 
        >>> x = Int('x')
        >>> A = AstVector()
        >>> x in A
        False
        >>> A.push(x)
        >>> x in A
        True
        >>> (x+1) in A
        False
        >>> A.push(x+1)
        >>> (x+1) in A
        True
        >>> A
        [x, x + 1]
        """
        for elem in self:
            if elem.eq(item):
                return True
        return False
 

__copy__()

__copy__

(

self

)

Definition at line 6750 of file z3py.py.

    def __copy__(self):
        return self.translate(self.ctx)
 

__deepcopy__()

__deepcopy__	(		self,
			memo = {} )

Definition at line 6753 of file z3py.py.

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

__getitem__()

__getitem__	(		self,
			i )

Return the AST at position `i`.

>>> A = AstVector()
>>> A.push(Int('x') + 1)
>>> A.push(Int('y'))
>>> A[0]
x + 1
>>> A[1]
y
>>> ctx = Context()
>>> A = AstVector(ctx=ctx)
>>> sorts = [BoolSort(ctx), IntSort(ctx), RealSort(ctx), BitVecSort(8, ctx),
...          ArraySort(IntSort(ctx), BoolSort(ctx)), DeclareSort('S', ctx)]
>>> for s in sorts: A.push(s)
>>> all(isinstance(A[i], type(s)) and A[i].eq(s)
...     for i, s in enumerate(sorts))
True
>>> A[-1].eq(sorts[-1])
True
>>> all(a.eq(s) for a, s in zip(A[:], sorts))
True
>>> A.push(Int('z', ctx))
>>> A.push(Function('f', IntSort(ctx), IntSort(ctx)))
>>> is_func_decl(A[-1])
True
>>> [is_expr(a) for a in A]
[False, False, False, False, False, False, True, False]
>>> ctx = Context()
>>> B = A.translate(ctx)
>>> all(B[i].eq(s.translate(ctx)) for i, s in enumerate(sorts))
True

Definition at line 6617 of file z3py.py.

    def __getitem__(self, i):
        """Return the AST at position `i`.
 
        >>> A = AstVector()
        >>> A.push(Int('x') + 1)
        >>> A.push(Int('y'))
        >>> A[0]
        x + 1
        >>> A[1]
        y
        >>> ctx = Context()
        >>> A = AstVector(ctx=ctx)
        >>> sorts = [BoolSort(ctx), IntSort(ctx), RealSort(ctx), BitVecSort(8, ctx),
        ...          ArraySort(IntSort(ctx), BoolSort(ctx)), DeclareSort('S', ctx)]
        >>> for s in sorts: A.push(s)
        >>> all(isinstance(A[i], type(s)) and A[i].eq(s)
        ...     for i, s in enumerate(sorts))
        True
        >>> A[-1].eq(sorts[-1])
        True
        >>> all(a.eq(s) for a, s in zip(A[:], sorts))
        True
        >>> A.push(Int('z', ctx))
        >>> A.push(Function('f', IntSort(ctx), IntSort(ctx)))
        >>> is_func_decl(A[-1])
        True
        >>> [is_expr(a) for a in A]
        [False, False, False, False, False, False, True, False]
        >>> ctx = Context()
        >>> B = A.translate(ctx)
        >>> all(B[i].eq(s.translate(ctx)) for i, s in enumerate(sorts))
        True
        """
 
        if isinstance(i, int):
            if i < 0:
                i += self.__len__()
 
            if i >= self.__len__():
                raise IndexError
            return _to_ast_ref(Z3_ast_vector_get(self.ctx.ref(), self.vector, i), self.ctx)
 
        elif isinstance(i, slice):
            result = []
            for ii in range(*i.indices(self.__len__())):
                result.append(_to_ast_ref(
                    Z3_ast_vector_get(self.ctx.ref(), self.vector, ii),
                    self.ctx,
                ))
            return result
 

__len__()

__len__

(

self

)

Return the size of the vector `self`.

>>> A = AstVector()
>>> len(A)
0
>>> A.push(Int('x'))
>>> A.push(Int('x'))
>>> len(A)
2

Definition at line 6604 of file z3py.py.

    def __len__(self):
        """Return the size of the vector `self`.
 
        >>> A = AstVector()
        >>> len(A)
        0
        >>> A.push(Int('x'))
        >>> A.push(Int('x'))
        >>> len(A)
        2
        """
        return int(Z3_ast_vector_size(self.ctx.ref(), self.vector))
 

Referenced by __getitem__(), and __setitem__().

__repr__()

__repr__

(

self

)

Definition at line 6756 of file z3py.py.

    def __repr__(self):
        return obj_to_string(self)
 

__setitem__()

__setitem__	(		self,
			i,
			v )

Update AST at position `i`.

>>> A = AstVector()
>>> A.push(Int('x') + 1)
>>> A.push(Int('y'))
>>> A[0]
x + 1
>>> A[0] = Int('x')
>>> A[0]
x

Definition at line 6668 of file z3py.py.

    def __setitem__(self, i, v):
        """Update AST at position `i`.
 
        >>> A = AstVector()
        >>> A.push(Int('x') + 1)
        >>> A.push(Int('y'))
        >>> A[0]
        x + 1
        >>> A[0] = Int('x')
        >>> A[0]
        x
        """
        if i < 0:
            i += self.__len__()
        if i < 0 or i >= self.__len__():
            raise IndexError
        Z3_ast_vector_set(self.ctx.ref(), self.vector, i, v.as_ast())
 

push()

push	(		self,
			v )

Add `v` in the end of the vector.

>>> A = AstVector()
>>> len(A)
0
>>> A.push(Int('x'))
>>> len(A)
1

Definition at line 6686 of file z3py.py.

    def push(self, v):
        """Add `v` in the end of the vector.
 
        >>> A = AstVector()
        >>> len(A)
        0
        >>> A.push(Int('x'))
        >>> len(A)
        1
        """
        Z3_ast_vector_push(self.ctx.ref(), self.vector, v.as_ast())
 

Referenced by Solver.__enter__().

resize()

resize	(		self,
			sz )

Resize the vector to `sz` elements.

>>> A = AstVector()
>>> A.resize(10)
>>> len(A)
10
>>> for i in range(10): A[i] = Int('x')
>>> A[5]
x

Definition at line 6698 of file z3py.py.

    def resize(self, sz):
        """Resize the vector to `sz` elements.
 
        >>> A = AstVector()
        >>> A.resize(10)
        >>> len(A)
        10
        >>> for i in range(10): A[i] = Int('x')
        >>> A[5]
        x
        """
        Z3_ast_vector_resize(self.ctx.ref(), self.vector, sz)
 

sexpr()

sexpr

(

self

)

Return a textual representation of the s-expression representing the vector.

Definition at line 6759 of file z3py.py.

    def sexpr(self):
        """Return a textual representation of the s-expression representing the vector."""
        return Z3_ast_vector_to_string(self.ctx.ref(), self.vector)
 

translate()

translate	(		self,
			other_ctx )

Copy vector `self` to context `other_ctx`.

>>> x = Int('x')
>>> A = AstVector()
>>> A.push(x)
>>> c2 = Context()
>>> B = A.translate(c2)
>>> B
[x]

Definition at line 6734 of file z3py.py.

    def translate(self, other_ctx):
        """Copy vector `self` to context `other_ctx`.
 
        >>> x = Int('x')
        >>> A = AstVector()
        >>> A.push(x)
        >>> c2 = Context()
        >>> B = A.translate(c2)
        >>> B
        [x]
        """
        return AstVector(
            Z3_ast_vector_translate(self.ctx.ref(), self.vector, other_ctx.ref()),
            ctx=other_ctx,
        )
 

Referenced by __copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), __deepcopy__(), FuncInterp.__deepcopy__(), and ModelRef.__deepcopy__().

Field Documentation

ctx

ctx = _get_ctx(ctx)

Definition at line 6592 of file z3py.py.

Referenced by AstMap.__contains__(), __copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), AstMap.__deepcopy__(), __deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), AstMap.__del__(), __del__(), FuncEntry.__del__(), FuncInterp.__del__(), ModelRef.__del__(), Solver.__del__(), Statistics.__del__(), AstMap.__getitem__(), __getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), AstMap.__len__(), __len__(), ModelRef.__len__(), Statistics.__len__(), AstMap.__repr__(), Statistics.__repr__(), AstMap.__setitem__(), __setitem__(), FuncEntry.arg_value(), FuncInterp.arity(), Solver.assert_and_track(), Solver.assert_exprs(), Solver.check(), ModelRef.decls(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), ModelRef.get_interp(), Statistics.get_key_value(), ModelRef.get_sort(), ModelRef.get_universe(), AstMap.keys(), Statistics.keys(), Solver.model(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), Solver.pop(), ModelRef.project(), ModelRef.project_with_witness(), push(), Solver.push(), AstMap.reset(), Solver.reset(), resize(), Solver.set(), sexpr(), ModelRef.sexpr(), translate(), ModelRef.translate(), and FuncEntry.value().

vector

vector = None

Definition at line 6590 of file z3py.py.

Referenced by __del__(), __getitem__(), __len__(), __setitem__(), push(), resize(), sexpr(), and translate().