Function Declarations. More...
Public Member Functions | |
as_ast (self) | |
get_id (self) | |
as_func_decl (self) | |
name (self) | |
arity (self) | |
domain (self, i) | |
range (self) | |
kind (self) | |
params (self) | |
__call__ (self, *args) | |
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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) | |
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use_pp (self) | |
Data Fields | |
ast | |
ctx | |
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ast = ast | |
ctx = _get_ctx(ctx) | |
Additional Inherited Members | |
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_repr_html_ (self) | |
Function Declarations.
Function declaration. Every constant and function have an associated declaration. The declaration assigns a name, a sort (i.e., type), and for function the sort (i.e., type) of each of its arguments. Note that, in Z3, a constant is a function with 0 arguments.
__call__ | ( | self, | |
* | args ) |
Create a Z3 application expression using the function `self`, and the given arguments. The arguments must be Z3 expressions. This method assumes that the sorts of the elements in `args` match the sorts of the domain. Limited coercion is supported. For example, if args[0] is a Python integer, and the function expects a Z3 integer, then the argument is automatically converted into a Z3 integer. >>> f = Function('f', IntSort(), RealSort(), BoolSort()) >>> x = Int('x') >>> y = Real('y') >>> f(x, y) f(x, y) >>> f(x, x) f(x, ToReal(x))
Definition at line 837 of file z3py.py.
arity | ( | self | ) |
Return the number of arguments of a function declaration. If `self` is a constant, then `self.arity()` is 0. >>> f = Function('f', IntSort(), RealSort(), BoolSort()) >>> f.arity() 2
Definition at line 768 of file z3py.py.
as_ast | ( | self | ) |
Return a pointer to the corresponding C Z3_ast object.
Reimplemented from AstRef.
Definition at line 748 of file z3py.py.
Referenced by AstRef.__del__(), BitVecRef.__invert__(), ArithRef.__neg__(), BitVecRef.__neg__(), ExprRef.arg(), BitVecNumRef.as_binary_string(), IntNumRef.as_binary_string(), AlgebraicNumRef.as_decimal(), RatNumRef.as_decimal(), BitVecNumRef.as_string(), IntNumRef.as_string(), RatNumRef.as_string(), ExprRef.decl(), ArrayRef.default(), RatNumRef.denominator(), AstRef.eq(), AstRef.get_id(), ExprRef.get_id(), FuncDeclRef.get_id(), PatternRef.get_id(), QuantifierRef.get_id(), SortRef.get_id(), AstRef.hash(), AlgebraicNumRef.index(), ExprRef.num_args(), AlgebraicNumRef.poly(), AstRef.sexpr(), and AstRef.translate().
as_func_decl | ( | self | ) |
domain | ( | self, | |
i ) |
Return the sort of the argument `i` of a function declaration. This method assumes that `0 <= i < self.arity()`. >>> f = Function('f', IntSort(), RealSort(), BoolSort()) >>> f.domain(0) Int >>> f.domain(1) Real
Definition at line 778 of file z3py.py.
Referenced by FuncDeclRef.__call__().
get_id | ( | self | ) |
Return unique identifier for object. It can be used for hash-tables and maps.
Reimplemented from AstRef.
Definition at line 751 of file z3py.py.
kind | ( | self | ) |
Return the internal kind of a function declaration. It can be used to identify Z3 built-in functions such as addition, multiplication, etc. >>> x = Int('x') >>> d = (x + 1).decl() >>> d.kind() == Z3_OP_ADD True >>> d.kind() == Z3_OP_MUL False
Definition at line 800 of file z3py.py.
Referenced by ArithSortRef.is_int(), and ArithSortRef.is_real().
name | ( | self | ) |
Return the name of the function declaration `self`. >>> f = Function('f', IntSort(), IntSort()) >>> f.name() 'f' >>> isinstance(f.name(), str) True
Definition at line 757 of file z3py.py.
Referenced by Datatype.__deepcopy__(), and Datatype.__repr__().
params | ( | self | ) |
Definition at line 813 of file z3py.py.
Referenced by ParamsRef.__deepcopy__(), ParamsRef.__del__(), ParamsRef.__repr__(), ParamsRef.set(), and ParamsRef.validate().
range | ( | self | ) |
Return the sort of the range of a function declaration. For constants, this is the sort of the constant. >>> f = Function('f', IntSort(), RealSort(), BoolSort()) >>> f.range() Bool
Definition at line 790 of file z3py.py.
Referenced by FuncDeclRef.__call__(), and FuncDeclRef.params().
ast |
Definition at line 749 of file z3py.py.
Referenced by FuncDeclRef.__call__(), AstRef.__deepcopy__(), AstRef.__del__(), SortRef.__eq__(), SortRef.__ne__(), DatatypeSortRef.accessor(), FuncDeclRef.arity(), AstRef.as_ast(), ExprRef.as_ast(), QuantifierRef.as_ast(), FuncDeclRef.as_func_decl(), QuantifierRef.body(), FuncDeclRef.domain(), ArraySortRef.domain_n(), QuantifierRef.is_exists(), QuantifierRef.is_lambda(), FuncDeclRef.kind(), SortRef.name(), QuantifierRef.no_pattern(), QuantifierRef.num_no_patterns(), QuantifierRef.num_patterns(), QuantifierRef.num_vars(), FuncDeclRef.params(), QuantifierRef.pattern(), QuantifierRef.qid(), ArraySortRef.range(), FuncDeclRef.range(), DatatypeSortRef.recognizer(), QuantifierRef.skolem_id(), QuantifierRef.var_name(), QuantifierRef.var_sort(), and QuantifierRef.weight().
ctx |
Definition at line 766 of file z3py.py.
Referenced by ArithRef.__add__(), BitVecRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), AstMap.__contains__(), AstRef.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), Goal.__copy__(), ModelRef.__copy__(), AstMap.__deepcopy__(), AstRef.__deepcopy__(), AstVector.__deepcopy__(), Datatype.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), Goal.__deepcopy__(), ModelRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), ParamsRef.__deepcopy__(), Statistics.__deepcopy__(), AstMap.__del__(), AstRef.__del__(), AstVector.__del__(), Context.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), Goal.__del__(), ModelRef.__del__(), ParamDescrsRef.__del__(), ParamsRef.__del__(), ScopedConstructor.__del__(), ScopedConstructorList.__del__(), Solver.__del__(), Statistics.__del__(), ArithRef.__div__(), BitVecRef.__div__(), ExprRef.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), AstMap.__getitem__(), AstVector.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), AstMap.__len__(), AstVector.__len__(), ModelRef.__len__(), Statistics.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), ArithRef.__mul__(), BitVecRef.__mul__(), BoolRef.__mul__(), ExprRef.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), AstMap.__repr__(), ParamDescrsRef.__repr__(), ParamsRef.__repr__(), Statistics.__repr__(), BitVecRef.__rlshift__(), ArithRef.__rmod__(), BitVecRef.__rmod__(), ArithRef.__rmul__(), BitVecRef.__rmul__(), BitVecRef.__ror__(), ArithRef.__rpow__(), BitVecRef.__rrshift__(), BitVecRef.__rshift__(), ArithRef.__rsub__(), BitVecRef.__rsub__(), BitVecRef.__rxor__(), AstMap.__setitem__(), AstVector.__setitem__(), ArithRef.__sub__(), BitVecRef.__sub__(), BitVecRef.__xor__(), DatatypeSortRef.accessor(), ExprRef.arg(), FuncEntry.arg_value(), FuncInterp.arity(), Goal.as_expr(), Solver.assert_and_track(), Goal.assert_exprs(), Solver.assert_exprs(), QuantifierRef.body(), Solver.check(), Goal.convert_model(), AstRef.ctx_ref(), ExprRef.decl(), ModelRef.decls(), ArrayRef.default(), RatNumRef.denominator(), Goal.depth(), Goal.dimacs(), FuncDeclRef.domain(), ArraySortRef.domain_n(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), Goal.get(), ParamDescrsRef.get_documentation(), ModelRef.get_interp(), Statistics.get_key_value(), ParamDescrsRef.get_kind(), ParamDescrsRef.get_name(), ModelRef.get_sort(), ModelRef.get_universe(), Goal.inconsistent(), AstMap.keys(), Statistics.keys(), Solver.model(), SortRef.name(), QuantifierRef.no_pattern(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), FuncDeclRef.params(), QuantifierRef.pattern(), AlgebraicNumRef.poly(), Solver.pop(), Goal.prec(), AstVector.push(), Solver.push(), QuantifierRef.qid(), ArraySortRef.range(), FuncDeclRef.range(), DatatypeSortRef.recognizer(), Context.ref(), AstMap.reset(), Solver.reset(), AstVector.resize(), ParamsRef.set(), Solver.set(), AstVector.sexpr(), Goal.sexpr(), ModelRef.sexpr(), Goal.size(), ParamDescrsRef.size(), QuantifierRef.skolem_id(), AstRef.translate(), AstVector.translate(), Goal.translate(), ModelRef.translate(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().