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sx/examples/0829-packs-param-impl-mixed-pack-source-ambiguous.sx
agra 12bf61a9fc std: restructure step 3 — ffi/ moves, build.sx, math dir spelling, fixtures
- objc.sx, objc_block.sx (from std/) + sdl3/opengl/raylib/stb/stb_truetype/
  wasm vendor bindings (from modules/ root) -> modules/ffi/
- std/uikit.sx deleted: platform/uikit.sx already declares UIApplicationMain
  and imports objc; '#framework "UIKit"' cannot live in a file imported on
  macOS targets (unconditional link directive, UIKit is iOS-only), so the
  three iOS-only examples carry the 3-line glue inline. 1607/1608/1616 also
  un-rotted (dead ns_string -> 'xx "..."' Into conversions, callconv(.c)
  msgSend fn-ptrs) — all three build for ios-sim/ios again.
- math/math.sx -> math/scalar.sx; one spelling '#import "modules/math"'
  everywhere (4 pinned IR snapshots regenerated: dir import adds Vec2/Mat4
  to the type tables).
- compiler.sx -> build.sx (imports, CLAUDE.md bundling table, specs.md).
- testpkg/ + test_c.sx -> tests/fixtures/ (resolve CWD-relative from repo
  root, same as vendors/).
- library-internal imports use full modules/... paths (std.sx tail,
  platform/bundle.sx, fixtures).
2026-06-11 08:37:22 +03:00

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// E6BR-4 (MIXED pack source — the trap cell) — a pack-closure param-impl source
// `Closure(*Box, ..$args) -> $R` mixes a CONCRETE fixed prefix (`*Box`) with pack
// metadata (`..$args`, `$R`). The reconciled choke-point decides template-vs-author
// AT THE LEAF: `*Box` is resolved SOURCE-AWARE through `resolveCompound` while
// `..$args`/`$R` stay pack metadata via `PackResolver` — NOT a top-level
// "contains-unbound → no-author wrapper" router, which would send `*Box` down the
// global last-wins path (the trap both engines flagged). With two flat `Box`
// authors and none own, the concrete `*Box` prefix is a genuine collision and the
// build exits 1 — proving the prefix IS routed source-aware (it caught the
// ambiguity) while the pack parts did not spuriously error.
//
// Fail-before (pre-E6BR-4): the wrapped/pack source fell to the no-author
// `type_bridge.resolveTemplateSignatureType` wrapper (global last-wins, no
// diagnostic), so the `*Box` collision registered silently. Protects the pure-pack
// `Closure(..$args) -> $R` bridge in `library/modules/ffi/objc_block.sx` (0504 /
// 1302 / 1304 stay byte-identical), whose single author keeps the prefix-free path.
#import "modules/std.sx";
#import "0829-packs-param-impl-mixed-pack-source-ambiguous/a.sx";
#import "0829-packs-param-impl-mixed-pack-source-ambiguous/b.sx";
Block :: struct { tag: s32; }
Sink :: protocol(T: Type) {
convert :: () -> T;
}
impl Sink(Block) for Closure(*Box, ..$args) -> $R {
convert :: (self: Closure(*Box, ..$args) -> $R) -> Block {
.{ tag = 0 }
}
}
main :: () -> s32 {
0
}