12bf61a9fc
- 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).
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
// Variadic heterogeneous type packs — `..$args` — impl matching
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// lock-in.
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//
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// Step 1d slice for the pack feature (see
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// ~/.claude/plans/lets-see-options-for-merry-dijkstra.md). Pins
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// today's concrete-only impl-matching behaviour: a user-declared
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// `impl Into(Block) for Closure(..$args) -> $R` does NOT match
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// any concrete closure source type. The xx cast site hits the
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// existing "no `Into(Block) for <src>` impl" diagnostic even
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// though the pack impl is reachable.
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//
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// Next commit (1d.B) teaches `tryUserConversion` /
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// `registerParamImpl` to walk a second `param_impl_pack_map`
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// when the concrete-key miss happens. Pack impls bind their
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// `$args` and `$R` to the concrete source closure's tail types
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// and return; monomorphisation proceeds against those bindings.
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//
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// The `Closure(s32, bool) -> bool` shape is not covered by
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// stdlib's hand-rolled impls (only `Closure() -> void` and
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// `Closure(bool) -> void`) and not covered by 96-block-multi-arg's
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// `Closure(s32, *void) -> void` impl, so the pack impl is the
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// only candidate.
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#import "modules/std.sx";
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#import "modules/ffi/objc_block.sx";
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impl Into(Block) for Closure(..$args) -> $R {
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convert :: (self: Closure(..$args) -> $R) -> Block {
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.{
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isa = @_NSConcreteStackBlock,
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flags = 0,
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reserved = 0,
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invoke = null,
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descriptor = xx @__sx_block_descriptor,
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sx_env = self.env,
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sx_fn = self.fn_ptr,
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}
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}
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}
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main :: () -> s32 {
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cl := (a: s32, b: bool) => true;
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b : *Block = xx cl;
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print("pack impl match ok\n");
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return 0;
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}
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