Expressions. More...
Public Member Functions | |
as_ast (self) | |
get_id (self) | |
sort (self) | |
sort_kind (self) | |
__eq__ (self, other) | |
__hash__ (self) | |
__ne__ (self, other) | |
params (self) | |
decl (self) | |
kind (self) | |
num_args (self) | |
arg (self, idx) | |
children (self) | |
from_string (self, s) | |
serialize (self) | |
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__init__ (self, ast, ctx=None) | |
__del__ (self) | |
__deepcopy__ (self, memo={}) | |
__str__ (self) | |
__repr__ (self) | |
__eq__ (self, other) | |
__hash__ (self) | |
__nonzero__ (self) | |
__bool__ (self) | |
sexpr (self) | |
ctx_ref (self) | |
eq (self, other) | |
translate (self, target) | |
__copy__ (self) | |
hash (self) | |
py_value (self) | |
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use_pp (self) | |
Additional Inherited Members | |
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ast = ast | |
ctx = _get_ctx(ctx) | |
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_repr_html_ (self) | |
Expressions.
Constraints, formulas and terms are expressions in Z3. Expressions are ASTs. Every expression has a sort. There are three main kinds of expressions: function applications, quantifiers and bounded variables. A constant is a function application with 0 arguments. For quantifier free problems, all expressions are function applications.
__eq__ | ( | self, | |
other ) |
Return a Z3 expression that represents the constraint `self == other`. If `other` is `None`, then this method simply returns `False`. >>> a = Int('a') >>> b = Int('b') >>> a == b a == b >>> a is None False
Definition at line 1037 of file z3py.py.
Referenced by CheckSatResult.__ne__().
__hash__ | ( | self | ) |
__ne__ | ( | self, | |
other ) |
Return a Z3 expression that represents the constraint `self != other`. If `other` is `None`, then this method simply returns `True`. >>> a = Int('a') >>> b = Int('b') >>> a != b a != b >>> a is not None True
Definition at line 1058 of file z3py.py.
arg | ( | self, | |
idx ) |
Return argument `idx` of the application `self`. This method assumes that `self` is a function application with at least `idx+1` arguments. >>> a = Int('a') >>> b = Int('b') >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.arg(0) a >>> t.arg(1) b >>> t.arg(2) 0
Definition at line 1117 of file z3py.py.
Referenced by AstRef.__bool__(), and children().
as_ast | ( | self | ) |
Return a pointer to the corresponding C Z3_ast object.
Reimplemented from AstRef.
Reimplemented in PatternRef, and QuantifierRef.
Definition at line 1008 of file z3py.py.
children | ( | self | ) |
Return a list containing the children of the given expression >>> a = Int('a') >>> b = Int('b') >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.children() [a, b, 0]
Reimplemented in QuantifierRef.
Definition at line 1138 of file z3py.py.
decl | ( | self | ) |
Return the Z3 function declaration associated with a Z3 application. >>> f = Function('f', IntSort(), IntSort()) >>> a = Int('a') >>> t = f(a) >>> eq(t.decl(), f) True >>> (a + 1).decl() +
Definition at line 1079 of file z3py.py.
Referenced by params().
from_string | ( | self, | |
s ) |
get_id | ( | self | ) |
Return unique identifier for object. It can be used for hash-tables and maps.
Reimplemented from AstRef.
Reimplemented in PatternRef, and QuantifierRef.
Definition at line 1011 of file z3py.py.
kind | ( | self | ) |
Return the Z3 internal kind of a function application.
Definition at line 1094 of file z3py.py.
Referenced by sort_kind().
num_args | ( | self | ) |
Return the number of arguments of a Z3 application. >>> a = Int('a') >>> b = Int('b') >>> (a + b).num_args() 2 >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.num_args() 3
Definition at line 1101 of file z3py.py.
Referenced by AstRef.__bool__(), arg(), FuncEntry.arg_value(), FuncEntry.as_list(), and children().
params | ( | self | ) |
serialize | ( | self | ) |
sort | ( | self | ) |
Return the sort of expression `self`. >>> x = Int('x') >>> (x + 1).sort() Int >>> y = Real('y') >>> (x + y).sort() Real
Reimplemented in ArithRef, ArrayRef, BitVecRef, BoolRef, DatatypeRef, FiniteDomainRef, FPRef, QuantifierRef, and SeqRef.
Definition at line 1014 of file z3py.py.
Referenced by ArrayRef.domain(), ArrayRef.domain_n(), ArithRef.is_int(), ArithRef.is_real(), ArrayRef.range(), BitVecRef.size(), and sort_kind().
sort_kind | ( | self | ) |
Shorthand for `self.sort().kind()`. >>> a = Array('a', IntSort(), IntSort()) >>> a.sort_kind() == Z3_ARRAY_SORT True >>> a.sort_kind() == Z3_INT_SORT False
Definition at line 1026 of file z3py.py.