feat: execute value-returning compile-time metadata helpers

2026-10-31 03:27:47 +01:00
parent ebae8e712c
commit ee7eeac894
6 changed files with 152 additions and 9 deletions
@@ -1405,6 +1405,7 @@ tagged_type_metadata_recompiles_owned_private_nominal_payloads test {
            `    Selected :: lib.Selected(lib.make())
            `    value Selected :: { value = 40 }
            `    if (lib.read(lib.make(), value) != 42) return -4
+            `    if (lib.score(lib.make(), 40) != 42) return -6
            `    snapshot Storage() :: {
            `        original = { values = [{ value = 19 }, { value = 21 }] },
            `        nested = { values = [true] },
@@ -1460,6 +1461,13 @@ tagged_type_metadata_recompiles_owned_private_nominal_payloads test {
            `read proc($input Metadata, value Selected(input)) i16 {
            `    return value.value + i16(input.payload.count)
            `}
+            `score proc(input Metadata, bias i16) i16 {
+            `    saved :: input
+            `    changed := input
+            `    changed.payload.children[0] = bool
+            `    if (saved.payload.children[0]? != Child) return -1
+            `    return i16(saved.payload.count) + bias
+            `}
            ,
        )
        defer arraylist.deinit(&imported)