Qinxuan Chen

The`#[serde(flatten)]` syntax is not supported with the feature `arbitrary_precision`

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example: ```rust use serde::{Deserialize, Serialize}; #[derive(Debug, Serialize, Deserialize)] struct Inner { inner: u32, } #[derive(Debug, Serialize, Deserialize)] pub struct Outer { out: u32, #[serde(flatten)] inner: Inner, } fn main() {...

How about moving `wasm-timer` into the rust-libp2p/misc ?

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How about moving [wasm-timer](https://github.com/tomaka/wasm-timer) into the `rust-libp2p/misc` dir, like #2641 did. /cc @mxinden @tomaka

handle forked blocks

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polkadot 0.8.28-1-99043f78-x86_64-linux-gnu: ``` 2021-02-23 14:06:48 ✨ Imported #3909354 (0xd780…2e37) 2021-02-23 14:06:53 💤 Idle (36 peers), best: #3909354 (0xd780…2e37), finalized #3909351 (0xd1d9…baae), ⬇ 56.0kiB/s ⬆ 77.9kiB/s 2021-02-23 14:06:54 ✨ Imported #3909355...

Deprecate `decl_*` macros

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Close #12248

Replace ed25519-dalek with ed25519-zebra

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## Description Replace the [ed25519-dalek](https://github.com/dalek-cryptography/ed25519-dalek) with [ed25519-zebra](https://github.com/ZcashFoundation/ed25519-zebra). ## Motivation I noticed that substrate has [replaced the ed25519 implementation with ed25519-zebra](https://github.com/paritytech/substrate/pull/11781), and I'm not sure if libp2p needs to be replaced...

pallet-sudo: add `CheckOnlySudo` signed extension

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## `CheckOnlySudo` SignedExtension The `CheckOnlySudo` is a signed extension for checking the signer of the transaction, and ensure the signed transactions are only valid if they are signed by root....

frame-support-test: migrate tests from `decl_*` macros to the new `pallet` macros

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## What does it do? This PR is a part of #12248 and it need #12401 to be merged firstly In this PR, I migrate the tests of `frame/support/test` from...

frame-support: migrate some tests from `decl_*` macros to the new `pallet` macros

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## What does it do? This PR is a part of #12248. After some discussion in #12326, most developers prefer to just remove the old `decl_*` macros. But there is...

- update `criterion` to v0.4.0 - update `trie-bench` to v0.34.0 https://github.com/paritytech/trie/pull/176