Files
sx/examples/1405-ffi-jni-call-06-jdouble-return.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
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.
2026-06-12 09:31:53 +03:00

22 lines
503 B
Plaintext

// Phase 1 step 1.20 (PLAN-FFI.md): `#jni_call(f64)` (jdouble return).
// First non-integer return type for JNI — exercises the LLVM
// `double` ret path through CallDoubleMethod (vtable slot 58).
#import "modules/std.sx";
g_should_call : bool = false;
read_double :: (env: *void, target: *void) -> f64 {
#jni_env(env) {
#jni_call(f64)(target, "getValue", "()D")
}
}
main :: () -> i32 {
if g_should_call {
_ := read_double(null, null);
}
print("ok\n");
0
}