INNER CODE UNIT · Rust

optional_string

logannye/rosalind · crates/receipt-wasm/src/lib.rs:311

fn optional_string(value: Option<&str>) -> String {
    value
        .map(|value| format!("\"{}\"", json_escape(value)))
        .unwrap_or_else(|| "null".to_string())
}

fn tri_bool(value: Option<bool>) -> &'static str {
    match value {
        Some(true) => "true",
        Some(false) => "false",
        None => "null",
    }
}

fn field_changes_json(changes: &[rosalind_receipt::FieldChange]) -> String {
    let body = changes
        .iter()
        .map(|change| {

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