Files
sx/examples/0824-protocols-same-name-method-wrapped-own-wins.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

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// E6BR-4 (own-wins) — a protocol method-signature names a same-name `Box` under
// every WRAPPER / COMPOUND form, and each must resolve SOURCE-AWARE (pinned to the
// protocol's defining module = main), selecting main's OWN `Box { m }` rather than
// the global last-wins `Box { a }` from the flat-imported `dep.sx`.
//
// The reconciled choke-point (resolveRegistrationSigTypeInSource → the recursive
// source-aware engine) recurses every structural shape and resolves the leaf
// author own-wins. The E6BR-4 RED CELL is the WRAPPED RETURN `() -> *Box`: pre-fix
// the wrapped sig fell to the no-author `type_bridge.resolveTemplateSignatureType`
// (global last-wins) and typed the result as `dep`'s `Box { a }`, so `bp.m` was
// `field 'm' not found on type 'Box'`. Discriminating returns: `*Box`, `?Box`,
// `(Box,Box)`, `[2]Box` (each observed by a `.m` access). Routing-only params:
// `*Box`, `?Box`, `[]Box`, `[2]Box`, `(Box,Box)`, nested `*?[]Box` — all resolved
// through the same `resolveCompound` recursion at protocol-decl registration.
#import "modules/std.sx";
#import "0824-protocols-same-name-method-wrapped-own-wins/dep.sx";
Box :: struct { m: i32; }
Holder :: struct { b: Box = ---; }
Provider :: protocol {
// discriminating wrapped/compound RETURNS
getp :: () -> *Box;
geto :: () -> ?Box;
gett :: () -> (Box, Box);
geta :: () -> [2]Box;
// routing-only wrapped/compound PARAMS
sump :: (p: *Box) -> i32;
sumo :: (o: ?Box) -> i32;
sums :: (s: []Box) -> i32;
suma :: (a: [2]Box) -> i32;
sumt :: (t: (Box, Box)) -> i32;
sumn :: (n: *?[]Box) -> i32;
}
impl Provider for Holder {
getp :: (self: *Holder) -> *Box { @self.b }
geto :: (self: *Holder) -> ?Box { self.b }
gett :: (self: *Holder) -> (Box, Box) { (self.b, self.b) }
geta :: (self: *Holder) -> [2]Box { r : [2]Box = ---; r[0] = self.b; r[1] = self.b; r }
sump :: (self: *Holder, p: *Box) -> i32 { p.m }
sumo :: (self: *Holder, o: ?Box) -> i32 { o!.m }
sums :: (self: *Holder, s: []Box) -> i32 { s[0].m }
suma :: (self: *Holder, a: [2]Box) -> i32 { a[0].m }
sumt :: (self: *Holder, t: (Box, Box)) -> i32 { t.0.m }
sumn :: (self: *Holder, n: *?[]Box) -> i32 { if n == null { 0 } else { 6 } }
}
main :: () -> i32 {
h : Holder = ---;
h.b.m = 7;
p : Provider = xx @h;
// discriminating returns — `.m` only resolves if each binds main's `Box`
bp := p.getp();
bo := p.geto();
bt := p.gett();
ba := p.geta();
// routing-only params, constructed in main and passed through the protocol
one : Box = ---; one.m = 1;
arr : [2]Box = ---; arr[0].m = 2; arr[1].m = 3;
sl : []Box = arr[0..2];
osl : ?[]Box = sl;
tup : (Box, Box) = (one, one);
sp := p.sump(@one);
so := p.sumo(one);
ss := p.sums(sl);
sa := p.suma(arr);
st := p.sumt(tup);
sn := p.sumn(@osl);
print("p={} o={} t={} a={} | sp={} so={} ss={} sa={} st={} sn={} dep={}\n",
bp.m, bo!.m, bt.0.m, ba[0].m, sp, so, ss, sa, st, sn, dep_box());
0
}