Struct Provenance 

pub struct Provenance<C> {
    pub generation: Option<C>,
    pub setters: Vec<C>,
    pub execution: Vec<C>,
    pub causes: Vec<C>,
}

The changes one row change used, in role order: the generation source first, then each replaced setter in the authored column order, then the sources its operations used beyond those, then its foreign-key causes in execution order. A source that fills several roles appears once per role.

Fields

generation: Option<C>

The change that established the generation this change advanced.

setters: Vec<C>

The change that set each cell this change replaced.

execution: Vec<C>

The generation source and replaced setters its operations used that the net change does not already name (D5 Execution).

causes: Vec<C>

The direct changes and intermediate actions in the same write whose foreign-key actions produced this change (§9.6).

Implementations

impl<C> Provenance<C>

pub fn sources(&self) -> impl Iterator<Item = &C>

Every source, in role order, keeping repeats.

Trait Implementations

impl<C: Clone> Clone for Provenance<C>

fn clone(&self) -> Provenance<C>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<C: Debug> Debug for Provenance<C>

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

Formats the value using the given formatter.

impl<C: PartialEq> PartialEq for Provenance<C>

fn eq(&self, other: &Provenance<C>) -> 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<C: Eq> Eq for Provenance<C>

impl<C> StructuralPartialEq for Provenance<C>