styled.js

import { css } from "./css";

let h;
const setPragma = pragma => (h = pragma);

/**
 * Styled function
 * @param {String} tag
 */
function styled(tag) {
  const _ctx = this || {};

  return function () {
    const _args = arguments;

    return function Styled(props) {
      const _props = _ctx.p = Object.assign({}, props);
      const _previousClassName = _props.className;

      _ctx.o = /\s*go[0-9]+/g.test(_previousClassName);
      _props.className = css.apply(_ctx, _args) + (_previousClassName ? " " + _previousClassName : "");

      return h(
        tag,
        _props
      );
    };
  };
}

export { styled, setPragma };