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.
31 lines
1013 B
Plaintext
31 lines
1013 B
Plaintext
// Variadic heterogeneous type packs — step 3: `$args[$i]` in
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// fn-pointer type literals.
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//
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// `(*void, $args[0]) -> $args[1]` is the shape step 5's generic
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// `Into(Block) for Closure(..$args) -> $R` body needs for its
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// trampoline:
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// typed_fn : (*void, $args[0], $args[1], ...) -> $R =
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// xx block_self.sx_fn;
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// — the trampoline's invoke slot is typed against the pack
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// positions to bridge the Block ABI to the sx closure.
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//
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// This test exercises the same plumbing on a smaller scale: a
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// local var with a fn-pointer type whose param + return types
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// both interpolate through `$args[$i]`.
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#import "modules/std.sx";
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// Two concrete handlers that match the per-mono fn-pointer shape.
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double_i64 :: (env: *void, x: i64) -> i64 => x * 2;
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via_fnptr :: (..$args) -> $args[1] {
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fp : (*void, $args[0]) -> $args[1] = double_i64;
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return fp(null, args[0]);
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}
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main :: () -> i32 {
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n := via_fnptr(7, 0); // (i64, i64) → fp : (*void, i64) -> i64
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print("{}\n", n);
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return 0;
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}
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