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refactor: remove Axis::Unassigned; axis_of returns Option<Axis>

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Axis::Unassigned served two purposes that Option already covers:
  1. "this category has no assignment yet" → None
  2. "this category doesn't exist" → None

By removing the variant and changing axis_of to return Option<Axis>,
callers are forced by the compiler to handle the absent-category case
explicitly (via match or unwrap_or), rather than silently treating it
like a real axis value.

SetAxis { axis: String } also upgraded to SetAxis { axis: Axis }.
Previously, constructing SetAxis with an invalid string (e.g. "diagonal")
would compile and then silently fail at dispatch. Now the type only admits
valid axis values; the dispatch string-parser is gone.

Axis gains #[serde(rename_all = "lowercase")] so existing JSON command
files (smoke.jsonl, etc.) using "row"/"column"/"page" continue to work.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Ed L
2026-03-24 07:32:48 -07:00
parent 599f1adcbd
commit e680b098ec
8 changed files with 61 additions and 71 deletions
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9
src/command/dispatch.rs
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@ -2,7 +2,6 @@
use crate::model::Model;
use crate::model::cell::{CellKey, CellValue};
use crate::formula::parse_formula;
use crate::view::Axis;
use crate::persistence;
use crate::import::analyzer::{analyze_records, extract_array_at_path, FieldKind};
use super::types::{CellValueArg, Command, CommandResult};
@ -105,14 +104,8 @@ pub fn dispatch(model: &mut Model, cmd: &Command) -> CommandResult {
}
Command::SetAxis { category, axis } => {
let ax = match axis.to_lowercase().as_str() {
"row" | "rows" => Axis::Row,
"column" | "col" | "columns" => Axis::Column,
"page" | "pages" | "filter" => Axis::Page,
other => return CommandResult::err(format!("Unknown axis '{other}'")),
};
match model.active_view_mut() {
Some(view) => { view.set_axis(category, ax); CommandResult::ok() }
Some(view) => { view.set_axis(category, *axis); CommandResult::ok() }
None => CommandResult::err("No active view"),
}
}