@itrocks/class-type/esm/class-type.js

Helper types and functions to identify, validate, and manipulate classes, objects, prototypes and their properties

const reservedClassNames = [];
const typeIdentifiers = new WeakMap();
export function addReservedClassNames(...classNames) {
    reservedClassNames.push(...classNames);
}
export function baseType(target) {
    while (!target.name.length || reservedClassNames.includes(target.name)) {
        target = Object.getPrototypeOf(target);
    }
    return target;
}
export function inherits(type, superType) {
    while (type) {
        if (type === superType)
            return true;
        type = Object.getPrototypeOf(type);
    }
    return false;
}
export function isAnyFunction(value) {
    return ((typeof value)[0] === 'f') && ((value + '')[0] !== 'c');
}
export function isAnyFunctionOrType(value) {
    return (typeof value)[0] === 'f';
}
export function isAnyObject(value) {
    return value && ((typeof value)[0] === 'o');
}
export function isAnyType(value) {
    return ((typeof value)[0] === 'f') && ((value + '')[0] === 'c');
}
export function isObject(target) {
    return (typeof target)[0] === 'o';
}
export function isType(target) {
    return (typeof target)[0] === 'f';
}
export function prototypeTargetOf(target) {
    return isType(target) ? target.prototype : target;
}
export function typeIdentifier(type) {
    let identifier = typeIdentifiers.get(type);
    if (identifier)
        return identifier;
    identifier = Symbol(type.name || 'anonymous');
    typeIdentifiers.set(type, identifier);
    return identifier;
}
export function typeOf(target) {
    return isObject(target)
        ? Object.getPrototypeOf(target).constructor
        : target;
}
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