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# pylint: disable=no-member
"""Async structures for TIRX"""

import inspect
from collections.abc import Callable

from tvm_ffi import register_object

from tvm.runtime import Object
from tvm.tirx import Expr, Var

from . import _ffi_api


@register_object("tirx.Predicate")
class Predicate(Object):
    """A predicate object for TIRX"""

    vars: list[Var]
    pred: Expr

    def __init__(self, f_pred: Callable[..., Expr]):
        vars = [Var(name, "int32") for name in inspect.signature(f_pred).parameters]
        pred = f_pred(*vars)
        self.__init_handle_by_constructor__(_ffi_api.Predicate, vars, pred)

    def apply(self, indices: list[Expr]) -> Expr:
        """Apply the predicate to the given indices"""
        return _ffi_api.PredicateApply(self, indices)
