Expressions. More...
Public Member Functions | |
def | as_ast (self) |
def | get_id (self) |
def | sort (self) |
def | sort_kind (self) |
def | __eq__ (self, other) |
def | __ne__ (self, other) |
def | decl (self) |
def | num_args (self) |
def | arg (self, idx) |
def | children (self) |
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def | __init__ (self, ast, ctx=None) |
def | __del__ (self) |
def | __str__ (self) |
def | __repr__ (self) |
def | sexpr (self) |
def | as_ast (self) |
def | get_id (self) |
def | ctx_ref (self) |
def | eq (self, other) |
def | translate (self, target) |
def | hash (self) |
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def | use_pp (self) |
Additional Inherited Members | |
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ast | |
ctx | |
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.
def __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 == None False
Definition at line 775 of file z3py.py.
Referenced by CheckSatResult.__ne__(), and Probe.__ne__().
def __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 != None True
Definition at line 792 of file z3py.py.
def 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 841 of file z3py.py.
Referenced by ExprRef.children().
def children | ( | self | ) |
def 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 810 of file z3py.py.
def get_id | ( | self | ) |
Definition at line 749 of file z3py.py.
def 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 825 of file z3py.py.
Referenced by ExprRef.arg(), and ExprRef.children().
def sort | ( | self | ) |
Return the sort of expression `self`. >>> x = Int('x') >>> (x + 1).sort() Int >>> y = Real('y') >>> (x + y).sort() Real
Definition at line 752 of file z3py.py.
Referenced by ArrayRef.domain(), ArithRef.is_int(), ArithRef.is_real(), ArrayRef.range(), BitVecRef.size(), and ExprRef.sort_kind().