3855f2351e
vendors/ is a third-party namespace (stb_image, kb_text_shape, etc.);
test fixtures don't belong there. The .c/.h companion files for the
Phase-0 FFI baselines now sit alongside the .sx that drives them in
examples/, with matching basenames:
examples/ffi-01-primitives.{sx,c,h} <- was vendors/ffi_primitives/
examples/ffi-02-small-struct.{sx,c,h} <- was vendors/ffi_structs/
examples/ffi-03-large-struct.{sx,c,h} <- was vendors/ffi_large_struct/
examples/ffi-04-fp-struct.{sx,c,h} <- was vendors/ffi_fp_struct/
examples/ffi-05-string-args.{sx,c,h} <- was vendors/ffi_strings/
examples/ffi-06-callback.{sx,c,h} <- was vendors/ffi_callback/
examples/101-ffi-medium-struct.{sx,c} <- was vendors/ffi_medium_struct/
`#source` / `#include` paths in the .sx files become bare filenames
(no prefix) since imports.zig's base_dir resolution finds them
relative to the importing .sx file's directory.
`library/vendors/sx_ffi_resolve_test/` stays put — that one's the
whole point: regression coverage for the stdlib-search branch of
the resolution chain, so it must live where ONLY that branch can
find it.
94/94 regression tests pass.
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 "ffi-01-primitives.h";
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#source "ffi-01-primitives.c";
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};
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main :: () -> s32 {
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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_s64(huge) = {}\n", ffi_id_s64(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 : s32 = 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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