Struct StepView 

pub struct StepView<'a> { /* private fields */ }

One step of a StepTable.

Implementations

impl<'a> StepView<'a>

pub fn index(&self) -> usize

The step’s position in the trace.

pub fn pc(&self) -> u64

pub fn op(&self) -> u8

The opcode byte. A step whose backend spelled its mnemonic in a way no opcode is spelled has opcode::INVALID; StepView::mnemonic still has the spelling.

pub fn mnemonic(&self) -> &'a str

The mnemonic, as the backend spelled it.

pub fn gas(&self) -> u64

pub fn gas_cost(&self) -> u64

The cost as the tracer reports it; see TraceStep::gas_cost.

pub fn depth(&self) -> u64

pub fn error(&self) -> Option<&'a str>

pub fn stack(&self) -> Stack<'a>

pub fn memory(&self) -> Option<Bytes>

The memory the step starts with; None when the backend did not record memory. The bytes are shared with the trace when it holds them in full, and rebuilt from the writes before the step otherwise.

pub fn storage(&self) -> &'a BTreeMap<String, String>

The storage the backend reported for the step.

pub fn storage_diff(&self) -> &'a BTreeMap<String, StorageChange>

The slots the step changed.

pub fn transient_storage(&self) -> &'a BTreeMap<String, String>

The transient slots the step read or wrote, with their value after it.

pub fn return_data(&self) -> Option<&'a str>

The return data buffer before the step, as unprefixed hex; None when empty.

pub fn to_trace_step(&self) -> TraceStep

The step as a TraceStep of its own.

Trait Implementations

impl<'a> Clone for StepView<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for StepView<'a>

impl Debug for StepView<'_>

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for StepView<'_>

impl PartialEq for StepView<'_>

fn eq(&self, other: &Self) -> bool

Two steps are equal when they record the same thing.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for StepView<'_>

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Writes the step as a TraceStep is written: the flat fields and the snapshot.