Macro forest_filecoin::shim::fvm_latest::total_enum_map
source · macro_rules! total_enum_map { ($en:ident { $($item:ident => $value:expr),+ $(,)? }) => { ... }; }
Expand description
Create a mapping from enum items to values in a way that guarantees at compile time that we did not miss any member, in any of the prices, even if the enum gets a new member later.
§Example
use fvm::total_enum_map;
use std::collections::HashMap;
#[derive(Hash, Eq, PartialEq)]
enum Foo {
Bar,
Baz,
}
let foo_cost: HashMap<Foo, u8> = total_enum_map! {
Foo {
Bar => 10,
Baz => 20
}
};