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Implement try_mutate for storage value and storage double map (#5699)

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* impl try_mutate for storage value and storage double map

* Docs + Reuse `try_mutate` in `mutate`
This commit is contained in:
Shawn Tabrizi
2020-04-20 15:05:20 +02:00
committed by GitHub
parent 319a00fb1c
commit 7d9aa81bfc
8 changed files with 116 additions and 33 deletions
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substrate/frame/support/src/error.rs
+1 -1
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@@ -89,7 +89,7 @@ macro_rules! decl_error {
#[doc(hidden)]
__Ignore(
$crate::sp_std::marker::PhantomData<($generic, $( $inst_generic)?)>,
$crate::dispatch::Never,
$crate::Never,
),
$(
$( #[doc = $doc_attr] )*