proposal: Go 2: add ? or ?() to the golang to handle the err return #66309
Description
Proposal Details
func exampleFunction() (any, error){
res, err := run()
err ? return nil, err
num, err := calc()
err ? return nil, errors.Errorf("calc is wrong. error is:%v", err)
// if the err need more than one line to handle
val, err := get()
if err != nil {
do1()
do2()
return nil, err
}
//or can use this( may be no need to add this):
err ? {
do1()
do2()
return nil, err
}
}
The ? can be ? or ?-> or ?! or some other symbol not using in golang before.
The ? can means if anything != nil ...
you can also add ?() to handle err return.
for example:
func exampleFunction() (any, error){
res, err := run()
err ?(nil, err) // means if err != nil return nil, err
num, err := calc()
err ?(nil, errors.Errorf("calc is wrong. error is:%v", err)) // means if err != nil return nil, errors.Errorf(balabala)
// if the err need more than one line to handle
val, err := get()
if err != nil {
do1()
do2()
return nil, err
}
//or can use this( may be no need to add this):
err ? {
do1()
do2()
return nil, err
}
}