Function init

packages/zod/src/v4/core/core.ts:22–51

(inst: T, def: D)

  params?: { Parent?: typeof Class }
): $constructor<T, D> {
  function init(inst: T, def: D) {
    if (!inst._zod) {
      Object.defineProperty(inst, class="st">"_zod", {
        value: {
          def,
          constr: _,
          traits: new Set(),
        },
        enumerable: false,
      });
    }

    if (inst._zod.traits.has(name)) {
      return;
    }

    inst._zod.traits.add(name);

    initializer(inst, def);

    class="cm">// support prototype modifications
    const proto = _.prototype;
    const keys = Object.keys(proto);
    for (let i = 0; i < keys.length; i++) {
      const k = keys[i]!;
      if (!(k in inst)) {
        (inst as any)[k] = proto[k].bind(inst);
      }
    }
  }

  class="cm">// doesn't work if Parent has a constructor with arguments
  const Parent = params?.Parent ?? Object;