Struct Writing 

pub struct Writing<'a> {
    pub kind: Kind,
    pub name: &'a str,
    pub prose: &'a str,
    pub who: &'a str,
    pub scope: Scope,
    pub cites: Vec<Cited>,
    pub course: Option<Course>,
}

A move somebody is writing, before the store gives it an id.

A struct and not seven arguments: four callers are coming — asking, trying, finding and deciding — and each cares about a different subset, so positionally they would be four call sites of None, Vec::new(), None where nobody can see which blank is which.

Fields

kind: Kind

name: &'a str

Unique within the tree. See Move::name.

prose: &'a str

who: &'a str

scope: Scope

Everything, unless this is a question, a hypothesis or a decision.

cites: Vec<Cited>

Only an attempt and a finding may carry one.

course: Option<Course>

Only a decision may carry one.

Implementations

impl<'a> Writing<'a>

pub fn new(kind: Kind, name: &'a str, prose: &'a str, who: &'a str) -> Self

The ordinary case: about everything, citing nothing, deciding nothing.