ant-design-vue/components/radio/RadioButton.jsx

import Radio from './Radio'
import { getOptionProps } from '../_util/props-util'

export default {
  name: 'ARadioButton',
  props: {
    ...Radio.props,
    prefixCls: {
      default: 'ant-radio-button',
      type: String,
    },
  },
  inject: {
    radioGroupContext: { default: undefined },
  },
  render () {
    const props = getOptionProps(this)
    const radioProps = { props, on: { ...this.$listeners }}
    if (this.radioGroupContext) {
      radioProps.on.change = this.radioGroupContext.onRadioChange
      radioProps.props.checked = props.value === this.radioGroupContext.stateValue
      radioProps.props.disabled = props.disabled || this.radioGroupContext.disabled
    }
    return <Radio {...radioProps}>{this.$slots.default}</Radio>
  },
}