Trait ethcore::trace::Tracer

pub trait Tracer: Send {
    type Output;
    fn prepare_trace_call(
        &mut self, 
        params: &ActionParams, 
        depth: usize, 
        is_builtin: bool
    );
    fn prepare_trace_create(&mut self, params: &ActionParams);
    fn done_trace_call(&mut self, gas_used: U256, output: &[u8]);
    fn done_trace_create(
        &mut self, 
        gas_used: U256, 
        code: &[u8], 
        address: Address
    );
    fn done_trace_failed(&mut self, error: &VmError);
    fn trace_suicide(
        &mut self, 
        address: Address, 
        balance: U256, 
        refund_address: Address
    );
    fn trace_reward(
        &mut self, 
        author: Address, 
        value: U256, 
        reward_type: RewardType
    );
    fn drain(self) -> Vec<Self::Output>;
}

This trait is used by executive to build traces.

Associated Types

type Output

Data returned when draining the Tracer.

Required methods

fn prepare_trace_call(
    &mut self,
    params: &ActionParams,
    depth: usize,
    is_builtin: bool
)

Prepares call trace for given params. Would panic if prepare/done_trace are not balanced.

fn prepare_trace_create(&mut self, params: &ActionParams)

Prepares create trace for given params. Would panic if prepare/done_trace are not balanced.

fn done_trace_call(&mut self, gas_used: U256, output: &[u8])

Finishes a successful call trace. Would panic if prepare/done_trace are not balanced.

fn done_trace_create(&mut self, gas_used: U256, code: &[u8], address: Address)

Finishes a successful create trace. Would panic if prepare/done_trace are not balanced.

fn done_trace_failed(&mut self, error: &VmError)

Finishes a failed trace. Would panic if prepare/done_trace are not balanced.

fn trace_suicide(
    &mut self,
    address: Address,
    balance: U256,
    refund_address: Address
)

Stores suicide info.

fn trace_reward(
    &mut self,
    author: Address,
    value: U256,
    reward_type: RewardType
)

Stores reward info.

fn drain(self) -> Vec<Self::Output>

Consumes self and returns all traces.

Implementors

impl Tracer for ExecutiveTracer

type Output = FlatTrace

impl Tracer for NoopTracer

type Output = FlatTrace