Function apply

packages/shared/src/proxy.ts:20–42

(targetFn, thisArg, args)

      return new Proxy(value, {
        apply(targetFn, thisArg, args) {
          /**
           * Do nothing if .then not triggered by `await`
           */
          if (args.length !== 2 || args.some(arg => !isNativeFunction(arg))) {
            return Reflect.apply(targetFn, thisArg, args)
          }

          let shouldOmit = true
          args[0].call(thisArg, preventNativeAwait(new Proxy(target, {
            get: (target, prop, receiver) => {
              /**
               * Only omit `then` once, in `await` resolution, afterwards it should become normal
               */
              if (shouldOmit && prop === 'then') {
                shouldOmit = false
                return undefined
              }

              return Reflect.get(target, prop, receiver)
            },
          })))
        },
      })
    },
  })