Function evalTrackExpression

packages/amis-core/src/utils/helper.ts:2327–2380

(
  expression: string,
  data: Record<string, any>
)

}

export function evalTrackExpression(
  expression: string,
  data: Record<string, any>
) {
  if (typeof expression !== 'string') {
    return '';
  }

  const parts: Array<{
    type: 'text' | 'script';
    value: string;
  }> = [];
  while (true) {
    // 这个是自动提取的时候才会用到，用户配置不要用到这个语法
    const idx = expression.indexOf('<script>');
    if (idx === -1) {
      break;
    }
    const endIdx = expression.indexOf('</script>');
    if (endIdx === -1) {
      throw new Error(
        'Invalid trackExpression miss end script token `</script>`'
      );
    }
    if (idx) {
      parts.push({
        type: 'text',
        value: expression.substring(0, idx)
      });
    }

    parts.push({
      type: 'script',
      value: expression.substring(idx + 8, endIdx)
    });
    expression = expression.substring(endIdx + 9);
  }

  expression &&
    parts.push({
      type: 'text',
      value: expression
    });

  return parts
    .map(item => {
      if (item.type === 'text') {
        return tokenize(item.value, data);
      }

      return evalExpression(item.value, data);
    })
    .join('');
}

// 很奇怪的问题，react-json-view import 有些情况下 mod.default 才是 esModule
export function importLazyComponent(mod: any) {