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.
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
// Phase 0 baseline (PLAN-FFI.md step 0.1): every primitive type passed
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// in/out of a C `#foreign` fn via `#import c { #include / #source }`.
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// Locks today's parameter + return ABI so Phase 1's lowering changes
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// (`#objc_call` / `#jni_call`) can't silently regress us.
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//
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// Note: c_import maps `signed char` to sx `u8` (see c_import.zig:541)
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// — narrow signed-char roundtrips are still surfaced here so any future
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// mapping change shows up as a snapshot diff.
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#import "modules/std.sx";
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#import c {
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#include "1209-ffi-01-primitives.h";
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#source "1209-ffi-01-primitives.c";
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};
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main :: () -> i32 {
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// Signed roundtrips
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print("ffi_id_int(-42) = {}\n", ffi_id_int(0 - 42));
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print("ffi_id_short(-1234) = {}\n", ffi_id_short(0 - 1234));
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print("ffi_id_i64(huge) = {}\n", ffi_id_i64(9000000000000000000));
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// Unsigned roundtrips
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print("ffi_id_uint(0xDEADBEEF) = {}\n", ffi_id_uint(0xDEADBEEF));
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print("ffi_id_ushort(0xFFFF) = {}\n", ffi_id_ushort(0xFFFF));
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print("ffi_id_u64(0x7FEE...) = {}\n", ffi_id_u64(0x7FEEDFACECAFEBEE));
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// Narrow char roundtrips (both map to u8 in current sx)
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print("ffi_id_schar(127) = {}\n", ffi_id_schar(127));
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print("ffi_id_uchar(255) = {}\n", ffi_id_uchar(255));
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// Floating point
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print("ffi_id_f32(3.5) = {}\n", ffi_id_f32(3.5));
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print("ffi_id_f64(1.5) = {}\n", ffi_id_f64(1.5));
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// Pointer roundtrip — proves *void survives the boundary
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sentinel : i32 = 42;
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p_in : *void = xx @sentinel;
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p_out := ffi_id_ptr(p_in);
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addr_in : u64 = xx p_in;
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addr_out : u64 = xx p_out;
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print("ffi_id_ptr roundtrip = {}\n", addr_in == addr_out);
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// Arithmetic helpers — exercise multi-arg ABI
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print("ffi_add_int(7, 8) = {}\n", ffi_add_int(7, 8));
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print("ffi_add_double(0.25, 0.75) = {}\n", ffi_add_double(0.25, 0.75));
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0
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}
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