Function parseExpression

packages/renderer-core/src/utils/common.ts:191–229

(a: any, b?: any, c = false)

}): any
function parseExpression(str: any, self: any, thisRequired?: boolean): any
function parseExpression(a: any, b?: any, c = false) {
  let str: any
  let self: any
  let thisRequired: boolean
  let logScope: string
  if (typeof a === 'object' && b === undefined) {
    str = a.str
    self = a.self
    thisRequired = a.thisRequired
    logScope = a.logScope
  } else {
    str = a
    self = b
    thisRequired = c
  }
  try {
    const contextArr = ['"use strict";', 'var __self = arguments[0];']
    contextArr.push('return ')
    let tarStr: string

    tarStr = (str.value || '').trim()

    // NOTE: use __self replace 'this' in the original function str
    // may be wrong in extreme case which contains '__self' already
    tarStr = tarStr.replace(/this(\W|$)/g, (_a: any, b: any) => `__self${b}`)
    tarStr = contextArr.join('\n') + tarStr

    // 默认调用顶层窗口的parseObj, 保障new Function的window对象是顶层的window对象
    if (inSameDomain() && (window.parent as any).__newFunc) {
      return (window.parent as any).__newFunc(tarStr)(self)
    }
    const code = `with(${thisRequired ? '{}' : '$scope || {}'}) { ${tarStr} }`
    return new Function('$scope', code)(self)
  } catch (err) {
    // @ts-ignore
    logger.error(`${logScope || ''} parseExpression.error`, err, str, self?.__self ?? self)
    return undefined
  }
}

export { parseExpression }