Struct ContextPrecompiles

pub struct ContextPrecompiles<DB: Database> { /* private fields */ }

Precompiles context.

Implementations

impl<DB: Database> ContextPrecompiles<DB>

pub fn new(spec_id: PrecompileSpecId) -> Self

Creates a new precompiles context at the given spec ID.

This is a cheap operation that does not allocate by reusing the global precompiles.

pub fn from_static_precompiles(precompiles: &'static Precompiles) -> Self

Creates a new precompiles context from the given static precompiles.

NOTE: The internal precompiles must not be StatefulMut or call will panic. This is done because the default precompiles are not stateful.

pub fn from_precompiles( precompiles: HashMap<Address, ContextPrecompile<DB>>, ) -> Self

Creates a new precompiles context from the given precompiles.

pub fn addresses_set(&self) -> HashSet<Address>

Returns precompiles addresses as a HashSet.

pub fn addresses<'a>( &'a self, ) -> Box<dyn ExactSizeIterator<Item = &'a Address> + 'a>

Returns precompiles addresses.

pub fn contains(&self, address: &Address) -> bool

Returns true if the precompiles contains the given address.

pub fn call( &mut self, address: &Address, bytes: &Bytes, gas_limit: u64, evmctx: &mut InnerEvmContext<DB>, ) -> Option<PrecompileResult>

Call precompile and executes it. Returns the result of the precompile execution.

Returns None if the precompile does not exist.

pub fn to_mut(&mut self) -> &mut HashMap<Address, ContextPrecompile<DB>>

Returns a mutable reference to the precompiles map.

Clones the precompiles map if it is shared.

Trait Implementations

impl<DB: Database> Clone for ContextPrecompiles<DB>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<DB: Database> Default for ContextPrecompiles<DB>

fn default() -> Self

Returns the “default value” for a type.

impl<DB: Database> Extend<(Address, ContextPrecompile<DB>)> for ContextPrecompiles<DB>

fn extend<T: IntoIterator<Item = (Address, ContextPrecompile<DB>)>>( &mut self, iter: T, )

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<DB: Database> Extend<PrecompileWithAddress> for ContextPrecompiles<DB>

fn extend<T: IntoIterator<Item = PrecompileWithAddress>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.