Z3
Public Member Functions | Data Fields
AstVector Class Reference
+ Inheritance diagram for AstVector:

Public Member Functions

def __init__
 
def __del__ (self)
 
def __len__ (self)
 
def __getitem__ (self, i)
 
def __setitem__ (self, i, v)
 
def push (self, v)
 
def resize (self, sz)
 
def __contains__ (self, item)
 
def translate (self, other_ctx)
 
def __copy__ (self)
 
def __deepcopy__
 
def __repr__ (self)
 
def sexpr (self)
 
- Public Member Functions inherited from Z3PPObject
def use_pp (self)
 

Data Fields

 vector
 
 ctx
 

Detailed Description

A collection (vector) of ASTs.

Definition at line 5847 of file z3py.py.

Constructor & Destructor Documentation

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

Definition at line 5850 of file z3py.py.

5850  def __init__(self, v=None, ctx=None):
5851  self.vector = None
5852  if v is None:
5853  self.ctx = _get_ctx(ctx)
5854  self.vector = Z3_mk_ast_vector(self.ctx.ref())
5855  else:
5856  self.vector = v
5857  assert ctx is not None
5858  self.ctx = ctx
5859  Z3_ast_vector_inc_ref(self.ctx.ref(), self.vector)
5860 
void Z3_API Z3_ast_vector_inc_ref(Z3_context c, Z3_ast_vector v)
Increment the reference counter of the given AST vector.
Z3_ast_vector Z3_API Z3_mk_ast_vector(Z3_context c)
Return an empty AST vector.
def __init__
Definition: z3py.py:5850
def __del__ (   self)

Definition at line 5861 of file z3py.py.

5861  def __del__(self):
5862  if self.vector is not None and self.ctx.ref() is not None and Z3_ast_vector_dec_ref is not None:
5863  Z3_ast_vector_dec_ref(self.ctx.ref(), self.vector)
5864 
void Z3_API Z3_ast_vector_dec_ref(Z3_context c, Z3_ast_vector v)
Decrement the reference counter of the given AST vector.
def __del__(self)
Definition: z3py.py:5861

Member Function Documentation

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]

Definition at line 5948 of file z3py.py.

5948  def __contains__(self, item):
5949  """Return `True` if the vector contains `item`.
5950 
5951  >>> x = Int('x')
5952  >>> A = AstVector()
5953  >>> x in A
5954  False
5955  >>> A.push(x)
5956  >>> x in A
5957  True
5958  >>> (x+1) in A
5959  False
5960  >>> A.push(x+1)
5961  >>> (x+1) in A
5962  True
5963  >>> A
5964  [x, x + 1]
5965  """
5966  for elem in self:
5967  if elem.eq(item):
5968  return True
5969  return False
5970 
def __contains__(self, item)
Definition: z3py.py:5948
def __copy__ (   self)

Definition at line 5987 of file z3py.py.

5987  def __copy__(self):
5988  return self.translate(self.ctx)
5989 
def translate(self, other_ctx)
Definition: z3py.py:5971
def __copy__(self)
Definition: z3py.py:5987
def __deepcopy__ (   self,
  memo = {} 
)

Definition at line 5990 of file z3py.py.

5990  def __deepcopy__(self, memo={}):
5991  return self.translate(self.ctx)
5992 
def translate(self, other_ctx)
Definition: z3py.py:5971
def __deepcopy__
Definition: z3py.py:5990
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

Definition at line 5878 of file z3py.py.

5878  def __getitem__(self, i):
5879  """Return the AST at position `i`.
5880 
5881  >>> A = AstVector()
5882  >>> A.push(Int('x') + 1)
5883  >>> A.push(Int('y'))
5884  >>> A[0]
5885  x + 1
5886  >>> A[1]
5887  y
5888  """
5889 
5890  if isinstance(i, int):
5891  if i < 0:
5892  i += self.__len__()
5893 
5894  if i >= self.__len__():
5895  raise IndexError
5896  return _to_ast_ref(Z3_ast_vector_get(self.ctx.ref(), self.vector, i), self.ctx)
5897 
5898  elif isinstance(i, slice):
5899  result = []
5900  for ii in range(*i.indices(self.__len__())):
5901  result.append(_to_ast_ref(
5902  Z3_ast_vector_get(self.ctx.ref(), self.vector, ii),
5903  self.ctx,
5904  ))
5905  return result
5906 
expr range(expr const &lo, expr const &hi)
Definition: z3++.h:4085
Z3_ast Z3_API Z3_ast_vector_get(Z3_context c, Z3_ast_vector v, unsigned i)
Return the AST at position i in the AST vector v.
def __len__(self)
Definition: z3py.py:5865
def __getitem__(self, i)
Definition: z3py.py:5878
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

Definition at line 5865 of file z3py.py.

Referenced by AstVector.__getitem__().

5865  def __len__(self):
5866  """Return the size of the vector `self`.
5867 
5868  >>> A = AstVector()
5869  >>> len(A)
5870  0
5871  >>> A.push(Int('x'))
5872  >>> A.push(Int('x'))
5873  >>> len(A)
5874  2
5875  """
5876  return int(Z3_ast_vector_size(self.ctx.ref(), self.vector))
5877 
unsigned Z3_API Z3_ast_vector_size(Z3_context c, Z3_ast_vector v)
Return the size of the given AST vector.
def __len__(self)
Definition: z3py.py:5865
def __repr__ (   self)

Definition at line 5993 of file z3py.py.

5993  def __repr__(self):
5994  return obj_to_string(self)
5995 
def __repr__(self)
Definition: z3py.py:5993
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

Definition at line 5907 of file z3py.py.

5907  def __setitem__(self, i, v):
5908  """Update AST at position `i`.
5909 
5910  >>> A = AstVector()
5911  >>> A.push(Int('x') + 1)
5912  >>> A.push(Int('y'))
5913  >>> A[0]
5914  x + 1
5915  >>> A[0] = Int('x')
5916  >>> A[0]
5917  x
5918  """
5919  if i >= self.__len__():
5920  raise IndexError
5921  Z3_ast_vector_set(self.ctx.ref(), self.vector, i, v.as_ast())
5922 
def __len__(self)
Definition: z3py.py:5865
def __setitem__(self, i, v)
Definition: z3py.py:5907
void Z3_API Z3_ast_vector_set(Z3_context c, Z3_ast_vector v, unsigned i, Z3_ast a)
Update position i of the AST vector v with the AST a.
def 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 5923 of file z3py.py.

5923  def push(self, v):
5924  """Add `v` in the end of the vector.
5925 
5926  >>> A = AstVector()
5927  >>> len(A)
5928  0
5929  >>> A.push(Int('x'))
5930  >>> len(A)
5931  1
5932  """
5933  Z3_ast_vector_push(self.ctx.ref(), self.vector, v.as_ast())
5934 
def push(self, v)
Definition: z3py.py:5923
void Z3_API Z3_ast_vector_push(Z3_context c, Z3_ast_vector v, Z3_ast a)
Add the AST a in the end of the AST vector v. The size of v is increased by one.
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

Definition at line 5935 of file z3py.py.

5935  def resize(self, sz):
5936  """Resize the vector to `sz` elements.
5937 
5938  >>> A = AstVector()
5939  >>> A.resize(10)
5940  >>> len(A)
5941  10
5942  >>> for i in range(10): A[i] = Int('x')
5943  >>> A[5]
5944  x
5945  """
5946  Z3_ast_vector_resize(self.ctx.ref(), self.vector, sz)
5947 
void Z3_API Z3_ast_vector_resize(Z3_context c, Z3_ast_vector v, unsigned n)
Resize the AST vector v.
def resize(self, sz)
Definition: z3py.py:5935
def sexpr (   self)
Return a textual representation of the s-expression representing the vector.

Definition at line 5996 of file z3py.py.

Referenced by Fixedpoint.__repr__(), and Optimize.__repr__().

5996  def sexpr(self):
5997  """Return a textual representation of the s-expression representing the vector."""
5998  return Z3_ast_vector_to_string(self.ctx.ref(), self.vector)
5999 
Z3_string Z3_API Z3_ast_vector_to_string(Z3_context c, Z3_ast_vector v)
Convert AST vector into a string.
def sexpr(self)
Definition: z3py.py:5996
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]

Definition at line 5971 of file z3py.py.

Referenced by AstVector.__copy__(), and AstVector.__deepcopy__().

5971  def translate(self, other_ctx):
5972  """Copy vector `self` to context `other_ctx`.
5973 
5974  >>> x = Int('x')
5975  >>> A = AstVector()
5976  >>> A.push(x)
5977  >>> c2 = Context()
5978  >>> B = A.translate(c2)
5979  >>> B
5980  [x]
5981  """
5982  return AstVector(
5983  Z3_ast_vector_translate(self.ctx.ref(), self.vector, other_ctx.ref()),
5984  ctx=other_ctx,
5985  )
5986 
def translate(self, other_ctx)
Definition: z3py.py:5971
Z3_ast_vector Z3_API Z3_ast_vector_translate(Z3_context s, Z3_ast_vector v, Z3_context t)
Translate the AST vector v from context s into an AST vector in context t.

Field Documentation

ctx
vector