The Go Programming Language + try + unwrap

Go with slightly better error handling primitives. Checkout the demo directory.

try

try sugar

content, err := ioutil.ReadFile(filename)
try err or string

try desugared

...
if err != nil {
    return make([]string, 1)[0], err
}

The try statement expects two values.

1. the error variable
2. the type of the return value (this is needed because go has this convention of returning the zero value of a type incase of an error)

unwrap

unwrap sugar

fileContent, err := readFile("sample.txt")
unwrap err

unwrap desugared

...
if err != nil {
    panic(err)
}

The unwrap statement expects one value, the error variable.

bababooey

just like try but this doesn't need a type

content, err := ioutil.ReadFile(filename)
bababooey err

bababooey desugared

...
if err != nil {
    return nil, err
}

The bababooey statement expects one value, the error variable.

<<<

sugar for append

numbers := []int{1, 2, 3}
numbers = append(numbers, 4)

append desugared

numbers := []uint{1, 2, 3}
@numbers <<< 4

How to run it

nix develop
cd src
./make.bash