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add EnsureWithSuccess (#12775)

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* add EnsureWithSuccess

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* add docs

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: parity-processbot <>
This commit is contained in:
Xiliang Chen
2022-11-26 04:29:56 +13:00
committed by GitHub
parent 5ca7dc1b87
commit 1ee7fe3697
2 changed files with 33 additions and 2 deletions
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substrate/frame/system/src/lib.rs
+30
View File
@@ -775,6 +775,7 @@ impl From<sp_version::RuntimeVersion> for LastRuntimeUpgradeInfo {
}
}
/// Ensure the origin is Root.
pub struct EnsureRoot<AccountId>(sp_std::marker::PhantomData<AccountId>);
impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, AccountId>
EnsureOrigin<O> for EnsureRoot<AccountId>
@@ -793,6 +794,7 @@ impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, Acco
}
}
/// Ensure the origin is Root and return the provided `Success` value.
pub struct EnsureRootWithSuccess<AccountId, Success>(
sp_std::marker::PhantomData<(AccountId, Success)>,
);
@@ -816,6 +818,31 @@ impl<
}
}
/// Ensure the origin is provided `Ensure` origin and return the provided `Success` value.
pub struct EnsureWithSuccess<Ensure, AccountId, Success>(
sp_std::marker::PhantomData<(Ensure, AccountId, Success)>,
);
impl<
O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>,
Ensure: EnsureOrigin<O>,
AccountId,
Success: TypedGet,
> EnsureOrigin<O> for EnsureWithSuccess<Ensure, AccountId, Success>
{
type Success = Success::Type;
fn try_origin(o: O) -> Result<Self::Success, O> {
Ensure::try_origin(o).map(|_| Success::get())
}
#[cfg(feature = "runtime-benchmarks")]
fn try_successful_origin() -> Result<O, ()> {
Ensure::try_successful_origin()
}
}
/// Ensure the origin is any `Signed` origin.
pub struct EnsureSigned<AccountId>(sp_std::marker::PhantomData<AccountId>);
impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, AccountId: Decode>
EnsureOrigin<O> for EnsureSigned<AccountId>
@@ -836,6 +863,7 @@ impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, Acco
}
}
/// Ensure the origin is `Signed` origin from the given `AccountId`.
pub struct EnsureSignedBy<Who, AccountId>(sp_std::marker::PhantomData<(Who, AccountId)>);
impl<
O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>,
@@ -864,6 +892,7 @@ impl<
}
}
/// Ensure the origin is `None`. i.e. unsigned transaction.
pub struct EnsureNone<AccountId>(sp_std::marker::PhantomData<AccountId>);
impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, AccountId>
EnsureOrigin<O> for EnsureNone<AccountId>
@@ -882,6 +911,7 @@ impl<O: Into<Result<RawOrigin<AccountId>, O>> + From<RawOrigin<AccountId>>, Acco
}
}
/// Always fail.
pub struct EnsureNever<T>(sp_std::marker::PhantomData<T>);
impl<O, T> EnsureOrigin<O> for EnsureNever<T> {
type Success = T;