• Command
• Trusted Indication
• Information
• System Notification

WithdrawAsset(Assets)

Used for teleporting assets between two systems.

ReceiveTeleportedAsset(Assets)

QueryResponse {
    #[codec(compact)]
    query_id: QueryId,
    response: Response,
    max_weight: Weight,
    querier: Option<Location>,
}

1. Error handler register
2. Appendix register

enum Instruction {
    /* snip */
    WithdrawAsset(Assets),
    /* snip */
}

enum Instruction {
    /* snip */
    BuyExecution {
        fees: Asset,
        weight_limit: WeightLimit,
    },
    /* snip */
}

enum Instruction {
    /* snip */
    DepositAsset {
        assets: AssetFilter,
        beneficiary: Location,
    },
    /* snip */
}

Xcm(vec![
    WithdrawAsset((Here, amount).into()),
    BuyExecution {
        fees: (Here, amount).into(),
        weight_limit: Limited(sanity_check_weight_limit)
    },
    DepositAsset { assets: All.into(), beneficiary: AccountId32 { ... }.into() },
])

Xcm(vec![
    WithdrawAsset((Here, amount).into()),
    BuyExecution {
        fees: (Here, amount).into(),
        weight_limit: Limited(sanity_check_weight_limit)
    },
    DepositAsset { assets: All.into(), beneficiary: AccountId32 { ... }.into() },
    RefundSurplus,
    DepositAsset { assets: All.into(), beneficiary: sender }
])

Xcm(vec![
    WithdrawAsset(reanchored_asset),
    ClearOrigin, // <- Why is this needed?
    /* ...custom instructions... */
])

let xcm_for_reserve = Xcm(vec![
    DepositReserveAsset {
        assets: All.into(),
        dest: location,
        xcm: Xcm(vec![
            DepositAsset {
                assets: All.into(),
                beneficiary: AccountId32 { ... }.into(),
            },
        ]),
    },
]);

Xcm(vec![
    ReserveAssetDeposited(reanchored_asset),
    ClearOrigin, // <- Why is this needed?
    /* ...custom instructions... */
])

1. Blog series introducing XCM: Parts 1, 2, and 3.
2. XCM Format repository
3. XCM Docs