Struct ethcore::trace::ExecutiveVMTracer

pub struct ExecutiveVMTracer { /* fields omitted */ }

Simple VM tracer. Traces all operations.

Methods

impl ExecutiveVMTracer

pub fn toplevel() -> Self

Create a new top-level instance.

Trait Implementations

impl VMTracer for ExecutiveVMTracer

type Output = VMTrace

Data returned when draining the VMTracer.

fn trace_next_instruction(     &mut self,     _pc: usize,     _instruction: u8,     _current_gas: U256 ) -> bool

Trace the progression of interpreter to next instruction. If tracer returns false it won't be called again. @returns true if trace_prepare_execute and trace_executed should be called.

fn trace_prepare_execute(&mut self, pc: usize, instruction: u8, gas_cost: U256)

Trace the preparation to execute a single valid instruction.

fn trace_executed(     &mut self,     gas_used: U256,     stack_push: &[U256],     mem_diff: Option<(usize, &[u8])>,     store_diff: Option<(U256, U256)> )

Trace the finalised execution of a single valid instruction.

fn prepare_subtrace(&self, code: &[u8]) -> Self

Spawn subtracer which will be used to trace deeper levels of execution.

fn done_subtrace(&mut self, sub: Self)

Finalize subtracer.

fn drain(self) -> Option<VMTrace>

Consumes self and returns the VM trace.