Struct PageTrace 

pub struct PageTrace {
    pub steps: Vec<TraceStep>,
    pub stopped: Option<Stop>,
}

One scenario’s run on one tier: a snapshot per top-level statement, until it stopped.

Fields

steps: Vec<TraceStep>

stopped: Option<Stop>

Implementations

impl PageTrace

pub fn at(&self, statement: usize) -> Option<&TraceStep>

The last step at or before statement.

pub fn compare(&self, candidate: &PageTrace) -> Divergence

Where candidate disagrees with self, the reference.

The runs are compared statement by statement, over the statements both reached. A reference stop at a statement the candidate did not execute (a page query that found no element, say) ends the comparison there: the candidate would have read the same page and failed the same way, since every earlier statement already agreed.

Trait Implementations

impl Clone for PageTrace

fn clone(&self) -> PageTrace

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PageTrace

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

Formats the value using the given formatter.

impl Default for PageTrace

fn default() -> PageTrace

Returns the “default value” for a type.

impl PartialEq for PageTrace

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PageTrace

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PageTrace

impl StructuralPartialEq for PageTrace