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Remove serde requirement from FRAME macros (#8628)

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* Remove `serde` requirement from FRAME macros

Currently there is some implicit requirement on `serde` being present in
the `Cargo.toml` of a pallet when `GenesisConfig` is used. This pr
removes this requirement by using the serde attribute `serde(crate = "..")`.

* build a unique reexport of serde in impl_opaque_keys, by abusing paste doc concatenation

* Optimize

Co-authored-by: thiolliere <gui.thiolliere@gmail.com>
This commit is contained in:
Bastian Köcher
2021-04-16 12:42:37 +02:00
committed by GitHub
parent 7527bd758c
commit c8136bd1df
43 changed files with 29 additions and 128 deletions
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substrate/frame/support/src/genesis_config.rs
+3
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@@ -76,10 +76,13 @@ macro_rules! impl_outer_config {
}
$crate::paste::item! {
#[cfg(any(feature = "std", test))]
use $crate::serde as __genesis_config_serde_import__;
#[cfg(any(feature = "std", test))]
#[derive($crate::serde::Serialize, $crate::serde::Deserialize, Default)]
#[serde(rename_all = "camelCase")]
#[serde(deny_unknown_fields)]
#[serde(crate = "__genesis_config_serde_import__")]
pub struct $main {
$(
pub [< $snake $(_ $instance )? >]: $config,