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Dispatchable for teleporting assets (#2995)

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* Dispatchable for teleporting assets

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Update node/network/protocol/src/peer_set.rs

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Update xcm/src/v0/traits.rs

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
Gavin Wood
2021-05-10 16:13:46 +02:00
committed by GitHub
parent 6c0cb7f8d0
commit 36b9d23923
10 changed files with 290 additions and 168 deletions
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polkadot/xcm/xcm-executor/src/lib.rs
+7 -3
View File
@@ -40,8 +40,12 @@ pub use config::Config;
pub struct XcmExecutor<Config>(PhantomData<Config>);
impl<Config: config::Config> ExecuteXcm<Config::Call> for XcmExecutor<Config> {
type Call = Config::Call;
fn execute_xcm(origin: MultiLocation, message: Xcm<Config::Call>, weight_limit: Weight) -> Outcome {
fn execute_xcm_in_credit(
origin: MultiLocation,
message: Xcm<Config::Call>,
weight_limit: Weight,
mut weight_credit: Weight,
) -> Outcome {
// TODO: #2841 #HARDENXCM We should identify recursive bombs here and bail.
let mut message = Xcm::<Config::Call>::from(message);
let shallow_weight = match Config::Weigher::shallow(&mut message) {
@@ -60,7 +64,7 @@ impl<Config: config::Config> ExecuteXcm<Config::Call> for XcmExecutor<Config> {
return Outcome::Error(XcmError::WeightLimitReached(maximum_weight));
}
let mut trader = Config::Trader::new();
let result = Self::do_execute_xcm(origin, true, message, &mut 0, Some(shallow_weight), &mut trader);
let result = Self::do_execute_xcm(origin, true, message, &mut weight_credit, Some(shallow_weight), &mut trader);
drop(trader);
match result {
Ok(surplus) => Outcome::Complete(maximum_weight.saturating_sub(surplus)),