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XCM builder pattern improvement - Accept impl Into<T> instead of just T #3708

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merged 12 commits into from
Apr 4, 2024

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franciscoaguirre
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The XCM builder pattern lets you build xcms like so:

let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128).into())
    .buy_execution((Parent, 1u128).into())
    .deposit_asset(All.into(), AccountId32 { id: [0u8; 32], network: None }.into())
    .build();

All the .into() become quite annoying to have to write.
I accepted impl Into<T> instead of T in the generated methods from the macro.
Now the previous example can be simplified as follows:

let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128))
    .buy_execution((Parent, 1u128))
    .deposit_asset(All, [0u8; 32])
    .build();

@franciscoaguirre franciscoaguirre requested a review from a team as a code owner March 14, 2024 22:57
@franciscoaguirre franciscoaguirre added the T6-XCM This PR/Issue is related to XCM. label Mar 15, 2024
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Should we add the builder pattern here as well? https://paritytech.github.io/xcm-docs/

@bkchr bkchr enabled auto-merge April 3, 2024 19:22
@acatangiu
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bot fmt

prdoc/pr_3708.prdoc Outdated Show resolved Hide resolved
@paritytech paritytech deleted a comment from command-bot bot Apr 4, 2024
@paritytech paritytech deleted a comment from command-bot bot Apr 4, 2024
@bkchr bkchr added this pull request to the merge queue Apr 4, 2024
Merged via the queue into master with commit c130ea9 Apr 4, 2024
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@bkchr bkchr deleted the xcm-builder-pattern-improvement branch April 4, 2024 13:10
@pgherveou
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just curious, @franciscoaguirre did you check whether or not this change impact the binary size ?

@franciscoaguirre
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Should we add the builder pattern here as well? https://paritytech.github.io/xcm-docs/

Definitely! I'm planning on moving those docs to rust docs to get them closer to the actual code and then I'll use the builder pattern there

@franciscoaguirre
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just curious, @franciscoaguirre did you check whether or not this change impact the binary size ?

No. Is it because of the impl that it might increase binary size much?

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Yeah probably not a concern but monomorphization might generate some extra code

Ank4n pushed a commit that referenced this pull request Apr 9, 2024
…st `T` (#3708)

The XCM builder pattern lets you build xcms like so:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128).into())
    .buy_execution((Parent, 1u128).into())
    .deposit_asset(All.into(), AccountId32 { id: [0u8; 32], network: None }.into())
    .build();
```

All the `.into()` become quite annoying to have to write.
I accepted `impl Into<T>` instead of `T` in the generated methods from
the macro.
Now the previous example can be simplified as follows:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128))
    .buy_execution((Parent, 1u128))
    .deposit_asset(All, [0u8; 32])
    .build();
```

---------

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>
dharjeezy pushed a commit to dharjeezy/polkadot-sdk that referenced this pull request Apr 9, 2024
…st `T` (paritytech#3708)

The XCM builder pattern lets you build xcms like so:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128).into())
    .buy_execution((Parent, 1u128).into())
    .deposit_asset(All.into(), AccountId32 { id: [0u8; 32], network: None }.into())
    .build();
```

All the `.into()` become quite annoying to have to write.
I accepted `impl Into<T>` instead of `T` in the generated methods from
the macro.
Now the previous example can be simplified as follows:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128))
    .buy_execution((Parent, 1u128))
    .deposit_asset(All, [0u8; 32])
    .build();
```

---------

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>
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5 participants