d8076b9333
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.
38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
// FFI plan step 5.2 — generic `Into(Block) for Closure(..$args) ->
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// $R` impl. One impl in stdlib covers every closure shape; the
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// compiler monomorphises the impl body per call shape and emits a
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// dedicated `__invoke` `callconv(.c)` trampoline + Block literal
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// (via `#insert build_block_convert($args, $R);`).
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//
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// This test exercises a closure shape (`Closure(i64, i64) -> void`)
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// that has NO hand-rolled `Into(Block)` impl in
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// `library/modules/ffi/objc_block.sx`. Before step 5.2 lands,
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// `xx cl : Block` errors out with the "no Into(Block) for
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// cl_i64_i64__void" focused diagnostic. After the generic impl
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// lands, the same call resolves through the pack-shaped impl and
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// the per-shape trampoline ferries control back to the sx closure.
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//
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// The block is invoked directly through `b.invoke` (a typed
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// `callconv(.c)` fn-pointer) — the same shape the Apple Block
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// runtime calls when a UIKit/Foundation API hands the block back
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// to its registered invoke.
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#import "modules/std.sx";
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#import "modules/ffi/objc_block.sx";
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g_a: i64 = 0;
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g_b: i64 = 0;
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main :: () -> i32 {
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cl := (a: i64, b: i64) => { g_a = a; g_b = b; };
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blk : Block = xx cl;
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invoke_fn : (*Block, i64, i64) -> void callconv(.c) = xx blk.invoke;
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invoke_fn(@blk, 10, 20);
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if g_a != 10 { print("FAIL: g_a={}\n", g_a); return 1; }
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if g_b != 20 { print("FAIL: g_b={}\n", g_b); return 1; }
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print("generic-into-block ok: a={} b={}\n", g_a, g_b);
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0
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}
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