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.
62 lines
2.1 KiB
Plaintext
62 lines
2.1 KiB
Plaintext
// `xx closure : Block` for an arbitrary closure signature.
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//
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// The stdlib (modules/ffi/objc_block.sx) declares hand-rolled
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// `Into(Block) for Closure() -> void` and `Closure(bool) -> void`
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// impls — the two most common Apple block shapes. Other signatures
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// need a per-shape `__block_invoke_<sig>` trampoline + `Into(Block)`
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// impl declared somewhere reachable (stdlib if shared, in-file if
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// app-specific).
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//
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// This test exercises the user-declared variant: signature
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// `Closure(i32, *void) -> void` (a two-arg block — not in stdlib).
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// If the impl is missing, the compiler emits a focused diagnostic
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// pointing at modules/ffi/objc_block.sx as the template.
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#import "modules/std.sx";
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#import "modules/ffi/objc_block.sx";
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// Trampoline matching `void (^)(int, void*)` — the C ABI Apple's
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// runtime calls. Forwards through to the sx closure with the
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// standard `(__sx_ctx, env, ...args)` shape.
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__block_invoke_void_i32_p :: (block_self: *Block, arg0: i32, arg1: *void) callconv(.c) {
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typed_fn : (*void, i32, *void) -> void = xx block_self.sx_fn;
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typed_fn(block_self.sx_env, arg0, arg1);
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}
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impl Into(Block) for Closure(i32, *void) -> void {
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convert :: (self: Closure(i32, *void) -> void) -> 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 = xx @__block_invoke_void_i32_p,
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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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// Side-effect capture so we can observe both args reached the
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// closure body.
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g_sum: i32 = 0;
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g_tag: *void = null;
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main :: () -> i32 {
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cl := (n: i32, tag: *void) => {
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g_sum = n + 1;
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g_tag = tag;
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};
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b : Block = xx cl;
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invoke_fn : (*Block, i32, *void) -> void callconv(.c) = xx b.invoke;
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sentinel: i32 = 42;
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invoke_fn(@b, 41, xx @sentinel);
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if g_sum != 42 { print("FAIL: g_sum expected 42, got {}\n", g_sum); return 1; }
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if g_tag == null { print("FAIL: g_tag null\n"); return 1; }
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print("block multi-arg ok: sum={}\n", g_sum);
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0
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}
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