Function parseExpression

packages/form-render/src/models/expression.ts:67–99

(
  func: any,
  formData = {},
  parentPath: string | []
)

};

export const parseExpression = (
  func: any,
  formData = {},
  parentPath: string | []
) => {
  const parentData = get(formData, parentPath) || {};

  if (typeof func === 'string') {
    const funcBody = func
      .replace(/^{\s*{/g, '')
      .replace(/}\s*}$/g, '')
      .trim();
    let isHandleData =
      funcBody?.startsWith('formData') || funcBody?.startsWith('rootValue');

    let funcBodyStr = isHandleData ? parseFunc(funcBody) : funcBody;

    const funcStr = `
      return ${funcBodyStr
        .replace(/formData/g, JSON.stringify(formData))
        .replace(/rootValue/g, JSON.stringify(parentData))}
    `;
    try {
      const result = Function(funcStr)();
      return result;
    } catch (error) {
      console.log(error, funcStr, parentPath);
      return null; // 如果计算有错误，return null 最合适
    }
  }

  return func;
}

export function getRealDataPath(path) {
  if (typeof path !== 'string') {