Function navigate

crates/flowtrace-cli/src/explain.rs:84–91

Walk a dotted path through a schema, following `properties`, items, `oneOf` variant tags, and `$ref` indirections. Returns the SchemaObject at the target.

(root: &'a RootSchema, start: &'a SchemaObject, rest: &[&str])

/// `oneOf` variant tags, and `$ref` indirections. Returns the SchemaObject at
/// the target.
fn navigate<'a>(root: &'a RootSchema, start: &'a SchemaObject, rest: &[&str]) -> Result<SchemaObject> {
    let mut current: SchemaObject = resolve(root, start).clone();
    for seg in rest {
        current = step_into(root, &current, seg)
            .with_context(|| format!("could not descend into `{}`", seg))?;
    }
    Ok(current)
}

/// Follow `$ref` references through the root's definitions to land on a
/// concrete SchemaObject. Returns the input unchanged if no ref.