Orkuncakilkaya
790eda6f73
Types phase 3 — the option/result safety pair. result/ok/err/try shipped in #46; this adds its companion option: - some(v) -> option (present value; any i32-width scalar) - none() -> option (empty; no magic -1 sentinel) - is_some / is_none -> bool - unwrap_or(o, fallback) -> int A heap %Option = { i32 present, i32 value }, bare builtins guarded by find_fn (a user fn of the same name still wins), gated by g_uses_option so unused programs compile byte-identically — same idiom as result. Wired: emit_call codegen + %Option decl (emit_decl) + g_uses_option (emit_core), reseeded seed, vocabulary sync (header/JetBrains/TextMate), builtin docs + inventory, and a self-asserting example (examples/library/optionresult.ludic + feat_case). All suites green incl. golden renders byte-identical and the bootstrap fixpoint. Tagged-union enums (variant payloads + binding match + exhaustiveness) are the deep type-system feature, split out to #56. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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| id | name | category | kind | tokens | sig | tip | order |
|---|---|---|---|---|---|---|---|
| fn-some | some | builtins | builtin | some | some(v) -> option | Wrap a present value in an option. | 16 |
Wraps a present value in an option — the value type that models maybe a value without a magic -1 sentinel. An option is either some(value) (this) or none (empty); test it with is_some / is_none and read it with unwrap_or. The payload is any i32-width scalar — int, fixed, bool, or entity.
Parameters:
v— the present value
program Targeting {
function nearest(count: int) -> option {
if count == 0 { return none() }
return some(count - 1) # the nearest target index
}
test "some carries the value" {
let t = unwrap_or(nearest(3), 0 - 1)
expect_eq(t, 2)
}
}