ant-design/components/locale-provider/index.tsx

import React from 'react';
import { changeConfirmLocale } from '../modal/locale';

export default class LocaleProvider extends React.Component {
  static propTypes = {
    locale: React.PropTypes.object,
  }

  static childContextTypes = {
    antLocale: React.PropTypes.object,
  }

  getChildContext() {
    return {
      antLocale: this.props.locale,
    };
  }

  componentDidMount() {
    this.componentDidUpdate();
  }

  componentDidUpdate() {
    const { locale } = this.props;
    changeConfirmLocale(locale && locale.Modal);
  }

  componentWillUnMount() {
    changeConfirmLocale();
  }

  render() {
    return React.Children.only(this.props.children);
  }
}