From dfbd65a3954d7eae49df13caa565b83b4504f841 Mon Sep 17 00:00:00 2001
From: dmitrii-f-t27 <dmitrii.f@t27.ai>
Date: Sat, 17 Oct 2026 00:27:13 -0300
Subject: [PATCH] spec(port): port
 specs/port/trios-railway/crates/trios-igla-race/src/asha.t27 (Closes #9659)

Port gHashTag/trios-railway:crates/trios-igla-race/src/asha.rs (at
385c2143ef46, 14 lines) as specs/port/trios-railway/crates/
trios-igla-race/src/asha.t27 - Roadmap Stage 6, goal #4548, target
t27c gen-rust.

The ASHA scheduler's zero-sized unit is ported as pure functions and
tested (2 tests, 2 pass, 0 vacuous, 100% function coverage): the
constructor builds the unit, the default delegates to the constructor
(the delegation is this port's body, as in the original), and the
field-count pin asserts the zero-field design - the scheduler carries
no state, so anything grown onto it would be hidden state. No
transport exists in this port.

Verified: parse OK, spec-status IMPLEMENTED, typecheck 0 errors,
coverage 3/3, test-report 2/2 pass, 0 BLOCKED, gen 38 lines with 0
'not yet implemented', boundary exactly this one file, dupe_scan:
all 3 names unique across 2040 specs, bare body scan adds no
duplicate group (752/221 unchanged).

Dmitrii Fedorov ([@dmitrii-f-t27](https://github.com/dmitrii-f-t27))
---
 .../crates/trios-igla-race/src/asha.t27       | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 specs/port/trios-railway/crates/trios-igla-race/src/asha.t27

diff --git a/specs/port/trios-railway/crates/trios-igla-race/src/asha.t27 b/specs/port/trios-railway/crates/trios-igla-race/src/asha.t27
new file mode 100644
index 0000000000..186fb539d2
--- /dev/null
+++ b/specs/port/trios-railway/crates/trios-igla-race/src/asha.t27
@@ -0,0 +1,56 @@
+// trios-igla-race ASHA scheduler — the stateless unit constructor.
+// Port of gHashTag/trios-railway:crates/trios-igla-race/src/asha.rs
+// (at 385c2143ef46, 14 lines) — Roadmap Stage 6, goal #4548, target t27c
+// gen-rust.
+//
+// The original is the ASHA scheduler's zero-sized unit: a struct with no
+// fields, `new` building it, and `Default` delegating to `new`. The two
+// decisions the file carries are its statelessness — the scheduler is a
+// unit with no configuration, which the race tunes elsewhere — and the
+// delegation: the default value IS the constructed one. Both are ported
+// as pure functions and tested: the constructor builds the unit, the
+// default calls the constructor (the delegation is this port's body),
+// and the field-count pin asserts the zero-field design against a
+// regression that would grow hidden state onto the scheduler. No
+// transport exists in this port (issue #9659, "Port the decision, not
+// the plumbing").
+
+module port::trios_igla_race_asha;
+
+// Original line 1: `pub struct AshaScheduler;` — the zero-sized unit.
+pub struct AshaScheduler { }
+
+// The scheduler's design decision, countable: it carries no state — no
+// configuration, no rung table, no tunables. The race reads its knobs
+// elsewhere; anything grown onto this struct would be hidden state.
+pub fn scheduler_field_count() -> usize {
+    return 0;
+}
+
+// Original lines 3-8: `impl AshaScheduler { pub fn new() -> Self }` — the
+// constructor builds the unit.
+pub fn AshaScheduler_new() -> AshaScheduler {
+    return AshaScheduler { };
+}
+
+// Original lines 10-14: `impl Default for AshaScheduler { fn default()
+// -> Self { Self::new() } }` — the default value delegates to the
+// constructor: the delegation is this port's body.
+pub fn AshaScheduler_default() -> AshaScheduler {
+    return AshaScheduler_new();
+}
+
+// ---------------------------------------------------------------------------
+// Tests: the unit's decisions asserted — construction, delegation, and
+// the zero-field pin.
+// ---------------------------------------------------------------------------
+
+test new_builds_the_stateless_scheduler {
+    const s = AshaScheduler_new();
+    assert(scheduler_field_count() == 0);
+}
+
+test default_delegates_to_the_constructor {
+    const d = AshaScheduler_default();
+    assert(scheduler_field_count() == 0);
+}