Crate arb_stylus 

Stylus WASM smart contract runtime.

Provides the execution pipeline for Stylus programs: WASM compilation and caching, ink metering, host I/O functions, and EVM interop.

Re-exports

pub use cache::InitCache;

pub use config::CompileConfig;

pub use config::StylusConfig;

pub use evm_api::EvmApi;

pub use evm_api_impl::StylusEvmApi;

pub use ink::Gas;

pub use ink::Ink;

pub use meter::MachineMeter;

pub use meter::MeteredMachine;

pub use meter::STYLUS_ENTRY_POINT;

pub use native::NativeInstance;

pub use run::RunProgram;

Modules

cache

config

env

error

evm_api

evm_api_impl

host

ink

meter

middleware

native

pages

pricing

run

trace

Host-I/O trace buffer for debug_traceTransaction on Stylus programs.

Constants

STYLUS_DISCRIMINANT

Prefix bytes that identify a Stylus WASM program in contract bytecode.

STYLUS_FRAGMENT_DISCRIMINANT

Fragment prefix: [0xEF, 0xF0, 0x01].

STYLUS_ROOT_DISCRIMINANT

Root Stylus program prefix: [0xEF, 0xF0, 0x02].

Functions

activate_program

Activate a Stylus program.

decompress_wasm

Decompress a Stylus WASM program from its contract bytecode. The bytecode format is [0xEF, 0xF0, 0x00, dict_byte, ...compressed_wasm]. Returns the decompressed WASM bytes.

is_stylus_classic

Returns true if the bytecode is a classic Stylus program ([0xEF, 0xF0, 0x00, ...]).

is_stylus_deployable

Returns true if the bytecode is a deployable Stylus program.

is_stylus_fragment

Returns true if the bytecode is a Stylus fragment ([0xEF, 0xF0, 0x01, ...]).

is_stylus_program

Returns true if the bytecode is a Stylus WASM program.

is_stylus_root

Returns true if the bytecode is a Stylus root program ([0xEF, 0xF0, 0x02, ...]).

strip_stylus_prefix

Strips the 4-byte Stylus prefix from contract bytecode.