// -------------------------------------------------------------------------------------
// instances
// -------------------------------------------------------------------------------------
/**
 * @category instances
 * @since 2.10.0
 */
export var getBooleanAlgebra = function (B) {
    return function () { return ({
        meet: function (x, y) { return function (a) { return B.meet(x(a), y(a)); }; },
        join: function (x, y) { return function (a) { return B.join(x(a), y(a)); }; },
        zero: function () { return B.zero; },
        one: function () { return B.one; },
        implies: function (x, y) { return function (a) { return B.implies(x(a), y(a)); }; },
        not: function (x) { return function (a) { return B.not(x(a)); }; }
    }); };
};
/**
 * Unary functions form a semigroup as long as you can provide a semigroup for the codomain.
 *
 * @example
 * import { Predicate, getSemigroup } from 'fp-ts/function'
 * import * as B from 'fp-ts/boolean'
 *
 * const f: Predicate<number> = (n) => n <= 2
 * const g: Predicate<number> = (n) => n >= 0
 *
 * const S1 = getSemigroup(B.SemigroupAll)<number>()
 *
 * assert.deepStrictEqual(S1.concat(f, g)(1), true)
 * assert.deepStrictEqual(S1.concat(f, g)(3), false)
 *
 * const S2 = getSemigroup(B.SemigroupAny)<number>()
 *
 * assert.deepStrictEqual(S2.concat(f, g)(1), true)
 * assert.deepStrictEqual(S2.concat(f, g)(3), true)
 *
 * @category instances
 * @since 2.10.0
 */
export var getSemigroup = function (S) {
    return function () { return ({
        concat: function (f, g) { return function (a) { return S.concat(f(a), g(a)); }; }
    }); };
};
/**
 * Unary functions form a monoid as long as you can provide a monoid for the codomain.
 *
 * @example
 * import { Predicate } from 'fp-ts/Predicate'
 * import { getMonoid } from 'fp-ts/function'
 * import * as B from 'fp-ts/boolean'
 *
 * const f: Predicate<number> = (n) => n <= 2
 * const g: Predicate<number> = (n) => n >= 0
 *
 * const M1 = getMonoid(B.MonoidAll)<number>()
 *
 * assert.deepStrictEqual(M1.concat(f, g)(1), true)
 * assert.deepStrictEqual(M1.concat(f, g)(3), false)
 *
 * const M2 = getMonoid(B.MonoidAny)<number>()
 *
 * assert.deepStrictEqual(M2.concat(f, g)(1), true)
 * assert.deepStrictEqual(M2.concat(f, g)(3), true)
 *
 * @category instances
 * @since 2.10.0
 */
export var getMonoid = function (M) {
    var getSemigroupM = getSemigroup(M);
    return function () { return ({
        concat: getSemigroupM().concat,
        empty: function () { return M.empty; }
    }); };
};
/**
 * @category instances
 * @since 2.10.0
 */
export var getSemiring = function (S) { return ({
    add: function (f, g) { return function (x) { return S.add(f(x), g(x)); }; },
    zero: function () { return S.zero; },
    mul: function (f, g) { return function (x) { return S.mul(f(x), g(x)); }; },
    one: function () { return S.one; }
}); };
/**
 * @category instances
 * @since 2.10.0
 */
export var getRing = function (R) {
    var S = getSemiring(R);
    return {
        add: S.add,
        mul: S.mul,
        one: S.one,
        zero: S.zero,
        sub: function (f, g) { return function (x) { return R.sub(f(x), g(x)); }; }
    };
};
// -------------------------------------------------------------------------------------
// utils
// -------------------------------------------------------------------------------------
/**
 * @since 2.11.0
 */
export var apply = function (a) {
    return function (f) {
        return f(a);
    };
};
/**
 * @since 2.0.0
 */
export function identity(a) {
    return a;
}
/**
 * @since 2.0.0
 */
export var unsafeCoerce = identity;
/**
 * @since 2.0.0
 */
export function constant(a) {
    return function () { return a; };
}
/**
 * A thunk that returns always `true`.
 *
 * @since 2.0.0
 */
export var constTrue = /*#__PURE__*/ constant(true);
/**
 * A thunk that returns always `false`.
 *
 * @since 2.0.0
 */
export var constFalse = /*#__PURE__*/ constant(false);
/**
 * A thunk that returns always `null`.
 *
 * @since 2.0.0
 */
export var constNull = /*#__PURE__*/ constant(null);
/**
 * A thunk that returns always `undefined`.
 *
 * @since 2.0.0
 */
export var constUndefined = /*#__PURE__*/ constant(undefined);
/**
 * A thunk that returns always `void`.
 *
 * @since 2.0.0
 */
export var constVoid = constUndefined;
export function flip(f) {
    return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        if (args.length > 1) {
            return f(args[1], args[0]);
        }
        return function (a) { return f(a)(args[0]); };
    };
}
export function flow(ab, bc, cd, de, ef, fg, gh, hi, ij) {
    switch (arguments.length) {
        case 1:
            return ab;
        case 2:
            return function () {
                return bc(ab.apply(this, arguments));
            };
        case 3:
            return function () {
                return cd(bc(ab.apply(this, arguments)));
            };
        case 4:
            return function () {
                return de(cd(bc(ab.apply(this, arguments))));
            };
        case 5:
            return function () {
                return ef(de(cd(bc(ab.apply(this, arguments)))));
            };
        case 6:
            return function () {
                return fg(ef(de(cd(bc(ab.apply(this, arguments))))));
            };
        case 7:
            return function () {
                return gh(fg(ef(de(cd(bc(ab.apply(this, arguments)))))));
            };
        case 8:
            return function () {
                return hi(gh(fg(ef(de(cd(bc(ab.apply(this, arguments))))))));
            };
        case 9:
            return function () {
                return ij(hi(gh(fg(ef(de(cd(bc(ab.apply(this, arguments)))))))));
            };
    }
    return;
}
/**
 * @since 2.0.0
 */
export function tuple() {
    var t = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        t[_i] = arguments[_i];
    }
    return t;
}
/**
 * @since 2.0.0
 */
export function increment(n) {
    return n + 1;
}
/**
 * @since 2.0.0
 */
export function decrement(n) {
    return n - 1;
}
/**
 * @since 2.0.0
 */
export function absurd(_) {
    throw new Error('Called `absurd` function which should be uncallable');
}
/**
 * Creates a tupled version of this function: instead of `n` arguments, it accepts a single tuple argument.
 *
 * @example
 * import { tupled } from 'fp-ts/function'
 *
 * const add = tupled((x: number, y: number): number => x + y)
 *
 * assert.strictEqual(add([1, 2]), 3)
 *
 * @since 2.4.0
 */
export function tupled(f) {
    return function (a) { return f.apply(void 0, a); };
}
/**
 * Inverse function of `tupled`
 *
 * @since 2.4.0
 */
export function untupled(f) {
    return function () {
        var a = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            a[_i] = arguments[_i];
        }
        return f(a);
    };
}
export function pipe(a, ab, bc, cd, de, ef, fg, gh, hi) {
    switch (arguments.length) {
        case 1:
            return a;
        case 2:
            return ab(a);
        case 3:
            return bc(ab(a));
        case 4:
            return cd(bc(ab(a)));
        case 5:
            return de(cd(bc(ab(a))));
        case 6:
            return ef(de(cd(bc(ab(a)))));
        case 7:
            return fg(ef(de(cd(bc(ab(a))))));
        case 8:
            return gh(fg(ef(de(cd(bc(ab(a)))))));
        case 9:
            return hi(gh(fg(ef(de(cd(bc(ab(a))))))));
        default: {
            var ret = arguments[0];
            for (var i = 1; i < arguments.length; i++) {
                ret = arguments[i](ret);
            }
            return ret;
        }
    }
}
/**
 * Type hole simulation
 *
 * @since 2.7.0
 */
export var hole = absurd;
/**
 * @since 2.11.0
 */
export var SK = function (_, b) { return b; };
/**
 * Use `Predicate` module instead.
 *
 * @category zone of death
 * @since 2.0.0
 * @deprecated
 */
export function not(predicate) {
    return function (a) { return !predicate(a); };
}
/**
 * Use `Endomorphism` module instead.
 *
 * @category zone of death
 * @since 2.10.0
 * @deprecated
 */
export var getEndomorphismMonoid = function () { return ({
    concat: function (first, second) { return flow(first, second); },
    empty: identity
}); };