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import { ErrorHandler, FinishHandler } from "./publicTypes.ts";import { AnyObject, isObject, Key, ObjectTypeOf, SchemaObject } from "./types.ts";import { RULE, ValueSchemaError } from "./ValueSchemaError.ts";/** * apply schema object to data * @param schemaObject schema object * @param data data to apply * @param onError error handler * @param onFinishWithError finish handler * @param keyStack path to key that caused error * @returns applied data */export function applySchemaObjectCore<S extends SchemaObject>(schemaObject: S, data: unknown, onError: ErrorHandler, onFinishWithError: FinishHandler, keyStack: Key[]): ObjectTypeOf<S> {    if (!isObject(data)) {        const err = new ValueSchemaError(RULE.TYPE, data, keyStack);        const result = onError(err);        if (!isObject(result)) {            throw err;        }        return result as ObjectTypeOf<S>;    }    const appliedObject: AnyObject = {};    let hasError = false;    for (const key of Object.keys(schemaObject)) {        // A trick in order to call _applyTo() private method from the outside (like "friend")        appliedObject[key] = schemaObject[key]["_applyTo"](data[key], errorHandler, [...keyStack, key]);    }    if (hasError) {        onFinishWithError();    }    return appliedObject as ObjectTypeOf<S>;    /**     * error handler (to avoid "no-loop-func" error on eslint)     * @param err error object     * @returns error handler     */    function errorHandler(err: ValueSchemaError): unknown | void {        hasError = true;        return onError(err);    }}