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#[derive(MaxEncodedLen)] (#8737)

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* impl #[derive(MaxEncodedLen)] for structs

* impl #[derive(MaxEncodedLen)] for enums, unions

* break long comments onto multiple lines

* add doc for public item

* add examples to macro documentation

* move MaxEncodedLen macro docs, un-ignore doc-tests
This commit is contained in:
Peter Goodspeed-Niklaus
2021-05-07 10:18:09 +02:00
committed by GitHub
parent e1caa2979f
commit 17a1997d18
13 changed files with 442 additions and 0 deletions
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substrate/frame/support/procedural/src/lib.rs
+7
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@@ -28,6 +28,7 @@ mod debug_no_bound;
mod clone_no_bound;
mod partial_eq_no_bound;
mod default_no_bound;
mod max_encoded_len;
pub(crate) use storage::INHERENT_INSTANCE_NAME;
use proc_macro::TokenStream;
@@ -432,3 +433,9 @@ pub fn crate_to_pallet_version(input: TokenStream) -> TokenStream {
/// The number of module instances supported by the runtime, starting at index 1,
/// and up to `NUMBER_OF_INSTANCE`.
pub(crate) const NUMBER_OF_INSTANCE: u8 = 16;
/// Derive `MaxEncodedLen`.
#[proc_macro_derive(MaxEncodedLen)]
pub fn derive_max_encoded_len(input: TokenStream) -> TokenStream {
max_encoded_len::derive_max_encoded_len(input)
}