optfield is a macro that, given a struct, generates another struct with
the same fields, but wrapped in Option<T>.
Minimum rustc version: 1.56.0
cargo add optfield
optfield takes the opt struct name as its first argument:
use optfield::optfield;
#[optfield(Opt)]
struct MyStruct<T> {
text: String,
number: i32,
generic: T,
}This will generate another struct that looks like:
struct Opt<T> {
text: Option<String>,
number: Option<i32>,
generic: Option<T>,
}optfield supports defining visibility, documentation, attributes and merge
methods. For more details and examples check its documentation.
Licensed under either of Apache License, Version 2.0 or MIT at your option.