Struct Evm
pub struct Evm<'a, EXT, DB>where
DB: Database,{
pub context: Context<EXT, DB>,
pub handler: Handler<'a, Context<EXT, DB>, EXT, DB>,
}
Expand description
EVM instance containing both internal EVM context and external context and the handler that dictates the logic of EVM (or hardfork specification).
Fields§
§context: Context<EXT, DB>
Context of execution, containing both EVM and external context.
handler: Handler<'a, Context<EXT, DB>, EXT, DB>
Handler is a component of the of EVM that contains all the logic. Handler contains specification id and it different depending on the specified fork.
Implementations§
§impl<EXT, DB> Evm<'_, EXT, DB>where
DB: Database + DatabaseCommit,
impl<EXT, DB> Evm<'_, EXT, DB>where
DB: Database + DatabaseCommit,
pub fn transact_commit(
&mut self,
) -> Result<ExecutionResult, EVMError<<DB as Database>::Error>>
pub fn transact_commit( &mut self, ) -> Result<ExecutionResult, EVMError<<DB as Database>::Error>>
Commit the changes to the database.
§impl<'a> Evm<'a, (), EmptyDBTyped<Infallible>>
impl<'a> Evm<'a, (), EmptyDBTyped<Infallible>>
pub fn builder() -> EvmBuilder<'a, SetGenericStage, (), EmptyDBTyped<Infallible>>
pub fn builder() -> EvmBuilder<'a, SetGenericStage, (), EmptyDBTyped<Infallible>>
Returns evm builder with empty database and empty external context.
§impl<'a, EXT, DB> Evm<'a, EXT, DB>where
DB: Database,
impl<'a, EXT, DB> Evm<'a, EXT, DB>where
DB: Database,
pub fn new(
context: Context<EXT, DB>,
handler: Handler<'a, Context<EXT, DB>, EXT, DB>,
) -> Evm<'a, EXT, DB>
pub fn new( context: Context<EXT, DB>, handler: Handler<'a, Context<EXT, DB>, EXT, DB>, ) -> Evm<'a, EXT, DB>
Create new EVM.
pub fn modify(self) -> EvmBuilder<'a, HandlerStage, EXT, DB>
pub fn modify(self) -> EvmBuilder<'a, HandlerStage, EXT, DB>
Allow for evm setting to be modified by feeding current evm into the builder for modifications.
pub fn run_the_loop(
&mut self,
first_frame: Frame,
) -> Result<FrameResult, EVMError<<DB as Database>::Error>>
pub fn run_the_loop( &mut self, first_frame: Frame, ) -> Result<FrameResult, EVMError<<DB as Database>::Error>>
Runs main call loop.
§impl<EXT, DB> Evm<'_, EXT, DB>where
DB: Database,
impl<EXT, DB> Evm<'_, EXT, DB>where
DB: Database,
pub fn spec_id(&self) -> SpecId
pub fn spec_id(&self) -> SpecId
Returns specification (hardfork) that the EVM is instanced with.
SpecId depends on the handler.
pub fn preverify_transaction(
&mut self,
) -> Result<(), EVMError<<DB as Database>::Error>>
pub fn preverify_transaction( &mut self, ) -> Result<(), EVMError<<DB as Database>::Error>>
Pre verify transaction by checking Environment, initial gas spend and if caller has enough balance to pay for the gas.
pub fn transact_preverified(
&mut self,
) -> Result<ResultAndState, EVMError<<DB as Database>::Error>>
pub fn transact_preverified( &mut self, ) -> Result<ResultAndState, EVMError<<DB as Database>::Error>>
Transact pre-verified transaction
This function will not validate the transaction.
pub fn transact(
&mut self,
) -> Result<ResultAndState, EVMError<<DB as Database>::Error>>
pub fn transact( &mut self, ) -> Result<ResultAndState, EVMError<<DB as Database>::Error>>
Transact transaction
This function will validate the transaction.
pub fn handler_cfg(&self) -> &HandlerCfg
pub fn handler_cfg(&self) -> &HandlerCfg
Returns the reference of handler configuration
pub fn modify_spec_id(&mut self, spec_id: SpecId)
pub fn modify_spec_id(&mut self, spec_id: SpecId)
Modify spec id, this will create new EVM that matches this spec id.
pub fn into_context(self) -> Context<EXT, DB>
pub fn into_context(self) -> Context<EXT, DB>
Returns internal database and external struct.
pub fn into_db_and_env_with_handler_cfg(self) -> (DB, EnvWithHandlerCfg)
pub fn into_db_and_env_with_handler_cfg(self) -> (DB, EnvWithHandlerCfg)
Returns database and EnvWithHandlerCfg
.
pub fn into_context_with_handler_cfg(self) -> ContextWithHandlerCfg<EXT, DB>
pub fn into_context_with_handler_cfg(self) -> ContextWithHandlerCfg<EXT, DB>
Returns Context and HandlerCfg.
Trait Implementations§
Auto Trait Implementations§
impl<'a, EXT, DB> Freeze for Evm<'a, EXT, DB>
impl<'a, EXT, DB> !RefUnwindSafe for Evm<'a, EXT, DB>
impl<'a, EXT, DB> !Send for Evm<'a, EXT, DB>
impl<'a, EXT, DB> !Sync for Evm<'a, EXT, DB>
impl<'a, EXT, DB> Unpin for Evm<'a, EXT, DB>
impl<'a, EXT, DB> !UnwindSafe for Evm<'a, EXT, DB>
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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.