snix_glue/builtins/
utils.rs

1use bstr::ByteSlice;
2use snix_eval::{
3    CatchableErrorKind, CoercionKind, ErrorKind, NixAttrs, NixString, Value,
4    generators::{self, GenCo},
5};
6
7pub(super) async fn strong_importing_coerce_to_string(
8    co: &GenCo,
9    val: Value,
10) -> Result<NixString, CatchableErrorKind> {
11    let val = generators::request_force(co, val).await;
12    generators::request_string_coerce(
13        co,
14        val,
15        CoercionKind {
16            strong: true,
17            import_paths: true,
18        },
19    )
20    .await
21}
22
23pub(super) async fn select_string(
24    co: &GenCo,
25    attrs: &NixAttrs,
26    key: &str,
27) -> Result<Result<Option<String>, CatchableErrorKind>, ErrorKind> {
28    if let Some(attr) = attrs.select(key) {
29        match strong_importing_coerce_to_string(co, attr.clone()).await {
30            Err(cek) => return Ok(Err(cek)),
31            Ok(str) => return Ok(Ok(Some(str.to_str()?.to_owned()))),
32        }
33    }
34
35    Ok(Ok(None))
36}
snix_glue/builtins/utils.rs

snix_glue/builtins/
utils.rs
