5 releases (1 stable)
1.0.0 | Aug 8, 2023 |
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0.1.0-dev.6 | Aug 5, 2023 |
0.1.0-dev.3 | Aug 4, 2023 |
0.1.0-dev.1 | Aug 3, 2023 |
0.0.0 |
|
#28 in #exports
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Used in 5 crates
(2 directly)
20KB
281 lines
Polkadot Parachain
placeholder //TODO Write content :) (https://github.com/paritytech/polkadot/issues/159)
lib.rs
:
Defines primitive types for creating or validating a parachain.
When compiled with standard library support, this crate exports a wasm
module that can be used to validate parachain WASM.
Parachain WASM
Polkadot parachain WASM is in the form of a module which imports a memory
instance and exports a function validate_block
.
validate
accepts as input two i32
values, representing a pointer/length pair
respectively, that encodes ValidationParams
.
validate
returns an u64
which is a pointer to an u8
array and its length.
The data in the array is expected to be a SCALE encoded ValidationResult
.
ASCII-diagram demonstrating the return data format:
[pointer][length]
32bit 32bit
^~~ returned pointer & length
The wasm-api (enabled only when std
feature is not enabled and wasm-api
feature is enabled)
provides utilities for setting up a parachain WASM module in Rust.
Dependencies
~15–30MB
~474K SLoC