Files
pezkuwi-subxt/polkadot/xcm/procedural/tests/ui/builder_pattern/unexpected_attribute.rs
T
Francisco Aguirre b3841b6b71 Different XCM builders, default one requires fee payment (#2253)
Adding on top of the new builder pattern for creating XCM programs, I'm
adding some more APIs:

```rust
let paying_fees: Xcm<()> = Xcm::builder() // Only allow paying for fees
  .withdraw_asset() // First instruction has to load the holding register
  .buy_execution() // Second instruction has to be `buy_execution`
  .build();

let paying_fees_invalid: Xcm<()> = Xcm::builder()
  .withdraw_asset()
  .build(); // Invalid, need to pay for fees

let not_paying_fees: Xcm<()> = Xcm::builder_unpaid()
  .unpaid_execution() // Needed
  .withdraw_asset()
  .deposit_asset()
  .build();

let all_goes: Xcm<()> = Xcm::builder_unsafe() // You can do anything
  .withdraw_asset()
  .deposit_asset()
  .build();
```

The invalid bits are because the methods don't even exist on the types
that you'd want to call them on.

---------

Co-authored-by: command-bot <>
2023-11-21 16:09:40 +01:00

33 lines
1.0 KiB
Rust

// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! Test error when using wrong attribute.
use xcm_procedural::Builder;
struct Xcm<Call>(pub Vec<Instruction<Call>>);
#[derive(Builder)]
enum Instruction<Call> {
#[builder(funds_holding)]
WithdrawAsset(u128),
BuyExecution { fees: u128 },
UnpaidExecution { weight_limit: (u32, u32) },
Transact { call: Call },
}
fn main() {}