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Token-swap-over-bridge pallet #944

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Merged
svyatonik merged 13 commits into from
Aug 2, 2021
Merged

Token-swap-over-bridge pallet #944

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489b8ea
token swap pallet
svyatonik Apr 28, 2021
6f4a9bc
token swap type (replay protection)
svyatonik May 13, 2021
5cd1b54
post-merge fixes
svyatonik Jun 21, 2021
ea43759
Merge branch 'master' into token-swap-pallet
svyatonik Jul 19, 2021
1da9403
post-merge fix
svyatonik Jul 19, 2021
06dac9f
Update modules/token-swap/src/lib.rs
svyatonik Jul 29, 2021
2dca550
Update modules/token-swap/src/lib.rs
svyatonik Jul 29, 2021
c968bbd
add missing comment part
svyatonik Jul 29, 2021
704845b
Merge branch 'token-swap-pallet' of https://github.com/paritytech/par…
svyatonik Jul 29, 2021
7d4a56e
Update modules/token-swap/src/lib.rs
svyatonik Jul 29, 2021
9fba1df
starting claim after lock period is over is forbidden
svyatonik Jul 29, 2021
ff5dd8e
Merge branch 'token-swap-pallet' of https://github.com/paritytech/par…
svyatonik Jul 29, 2021
1c58024
move spec_version and weight to arguments
svyatonik Jul 29, 2021
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Update modules/token-swap/src/lib.rs 
Co-authored-by: Tomasz Drwięga <[email protected]>
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@svyatonik @tomusdrw
svyatonik and tomusdrw authored Jul 29, 2021
commit 7d4a56e1704e06e7b879e96afcefebf46374bc24
2 changes: 1 addition & 1 deletion modules/token-swap/src/lib.rs
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Expand Up @@ -189,7 +189,7 @@ pub mod pallet {
/// `swap.target_balance_at_bridged_chain` is above existential deposit of the Bridged chain;
/// 3) the `target_public_at_bridged_chain` matches the `swap.target_account_at_bridged_chain`;
/// 4) the `bridged_currency_transfer_signature` is valid and generated by the owner of the
/// `target_public_at_bridged_chain` account.
/// `target_public_at_bridged_chain` account (read more about [`CallOrigin::TargetAccount`]).
///
/// Violating rule#1 will lead to losing your `source_balance_at_this_chain` tokens. Violating other
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@tomusdrw tomusdrw Jul 28, 2021

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Hmm, AFAICT if the swap is in Failed state you can still cancel it, no? So no funds should be lost.

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@svyatonik svyatonik Jul 29, 2021

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If you've signed any call that has succeeded at the target chain (e.g. system::remark), you can't cancel it on this chain.

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@tomusdrw tomusdrw Jul 29, 2021

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Oh, yeah, you're right. Actually given we allow arbitrary calls here, I'd suggest having the user provide weight as well. This will enable calling into proxy accounts, mutlisigs, etc. Also one less thing the pallet needs to know about the remote chain.

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@svyatonik svyatonik Jul 29, 2021

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Right. I've also moved bridged_chain_spec_version to arguments

/// rules will lead to losing message fees for this and other transactions + losing fees for message
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