Questions tagged [precompile]
The precompile tag has no usage guidance.
7
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Converting a H256/bytes32 into a generic AccountId for EVM precompiles
Overview
We are building out a precompile for pallet-staking and have run into the tricky challenge of converting H256 types into generic AccountIds so that we can implement functions like nominate ...
- 1,164
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Frontier: What is trait LinearCostPrecompile about?
So it's often seen in Precompile implementations as a trait bound :
impl<T: LinearCostPrecompile> Precompile for T {
and the trait itself :
pub trait LinearCostPrecompile {
const BASE: u64;
...
- 3,702
1
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Moonbeam #[precompile] procedural macro and Rust generics compilation error
I'm trying to write something similar to Moonbeam's assets-erc20 precompile.
I'm using Moonbeam's #[precompile] procedural macros.
pub type AssetIdOf<R> =
<<R as pallet_evm::Config&...
- 1,707
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EVM precompile actions always returns error code -32603 when called
We have started implementing a precompile for our NFT pallet but when I try testing it locally using Remix IDE when calling all of its actions I always get the following message:
Internal JSON-RPC ...
- 325
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Precompile error.. main runtime: panicked at 'Digest item must match that calculated,'
I was adding a new precompile function to my parachain,
then when I ran my parachain and invoked one of the precompile functions, I got this error from one of the polkadot validators:
Relaychain ...
- 1,193
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How to print color log in terminal with no_std requirement?
I tried to use ansi_term to print logs because it is used in the Substrate repository for logging:
https://github.com/paritytech/substrate/blob/fece0657f20e15df94be5833b164dfacd44823eb/client/...
- 1,193
3
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Frontier: How to change EVM gas fee charged in calling precompile functions
Regarding the EVM gas fee used for calling precompile functions, how can I set that fee to zero so that the MetaMask will show zero fee at invoking those precompile functions?
I saw a demonstration of ...
- 1,193