Trait World 

pub trait World<T: Tracer>: StorageInterface + Sized {
    // Required methods
    fn decommit(&mut self, hash: U256) -> Program<T, Self>;
    fn decommit_code(&mut self, hash: U256) -> Vec<u8> ;

    // Provided method
    fn precompiles(&self) -> &impl Precompiles { ... }
}

Encapsulates VM interaction with the external world. This includes VM storage and decomitting (loading) bytecodes for execution.

Required Methods

fn decommit(&mut self, hash: U256) -> Program<T, Self>

Loads a bytecode with the specified hash.

This method will be called every time a contract is called. Caching and decoding is the world implementor’s job.

fn decommit_code(&mut self, hash: U256) -> Vec<u8>

Loads bytecode bytes for the decommit opcode.

Provided Methods

fn precompiles(&self) -> &impl Precompiles

Returns precompiles to be used.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T: Tracer> World<T> for TestWorld<T>