import * as _ from "@preserves/core";
import * as _i_Actor from "../runtime/actor";

export const $Instance = Symbol.for("Instance");

export type _ptr = _i_Actor.Ref;

export type _val = _.Value<_ptr>;

export type Instance = {"name": string, "argument": _val};


export const _toPtr = (v: _val) => {let result: undefined | _ptr; result = _i_Actor.toRef(v); return result;};

export function Instance({name, argument}: {name: string, argument: _val}): Instance {return {"name": name, "argument": argument};}

export function asInstance(v: _val): Instance {
    let result = toInstance(v);
    if (result === void 0) throw new TypeError(`Invalid Instance: ${_.stringify(v)}`);
    return result;
}

export function toInstance(v: _val): undefined | Instance {
    let result: undefined | Instance;
    if (_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(v)) {
        let _tmp0: (null) | undefined;
        _tmp0 = _.is(v.label, $Instance) ? null : void 0;
        if (_tmp0 !== void 0) {
            let _tmp1: (string) | undefined;
            _tmp1 = typeof v[0] === 'string' ? v[0] : void 0;
            if (_tmp1 !== void 0) {
                let _tmp2: (_val) | undefined;
                _tmp2 = v[1];
                if (_tmp2 !== void 0) {result = {"name": _tmp1, "argument": _tmp2};};
            };
        };
    };
    return result;
}

export function fromInstance(_v: Instance): _val {return _.Record($Instance, [_v["name"], _v["argument"]]);}