Function to_field

src/selector.rs:183–209

(from: Vec<IDLValue>)

    Ok(res)
}
fn to_field(from: Vec<IDLValue>) -> Result<Vec<IDLField>> {
    let mut fs = Vec::with_capacity(from.len());
    for v in from.into_iter() {
        match v {
            IDLValue::Record(f) => match &f[..] {
                [IDLField {
                    val: IDLValue::Text(key),
                    ..
                }, IDLField { val, .. }] => {
                    let id = match key.parse::<u32>() {
                        Ok(id) => Label::Id(id),
                        Err(_) => Label::Named(key.to_string()),
                    };
                    fs.push(IDLField {
                        id,
                        val: val.clone(),
                    })
                }
                _ => return Err(anyhow!("expect function to return record {{ key; value }}")),
            },
            _ => return Err(anyhow!("expect function to return record {{ key; value }}")),
        }
    }
    fs.sort_unstable_by_key(|IDLField { id, .. }| id.get_id());
    check_unique(fs.iter().map(|f| &f.id))?;
    Ok(fs)
}

fn map(helper: &MyHelper, vs: Vec<IDLValue>, func: &str) -> Result<Vec<IDLValue>> {
    let mut new_helper = helper.spawn();