// mixed_scalar_tuple_sret_test — project #240: an over-cap tuple whose elements
// mix a scalar with slices/str (e.g. `(int, []u8, str)`) must lay out
// identically in both stages and round-trip through an sret return. Migrated
// from test/wcc/940_mixed_scalar_tuple_sret_run.c. Two silent, gate-blind
// cs!=ww divergences: callee SEND packed a leading scalar at the literal's
// (untyped-int, size 0) stride so trailing elements packed 8 bytes low; caller
// RECEIVE had no capacity gate so a 56B over-cap tuple was received via
// registers instead of the sret dest. The @test fns pin the runtime element
// values; T2 byte-id keeps cs==ww (rule 10). Each row covers an annotated and
// an inferred receive and a distinct scalar position.

package mixed_scalar_tuple_sret_test;

fn mk_int_slice_str() (int, []u8, str) = {
	let b: []u8; b.len = 5; b.cap = 9;
	let s: str = "abcd";
	return (42, b, s);
};

fn mk_int_slice_str_inferred() (int, []u8, str) = {
	let b: []u8; b.len = 6; b.cap = 8;
	let s: str = "xyz";
	return (17, b, s);
};

fn mk_slice_str_int() ([]u8, str, int) = {
	let b: []u8; b.len = 7; b.cap = 9;
	let s: str = "hello";
	return (b, s, 99);
};

fn mk_str_int_slice() (str, int, []u8) = {
	let s: str = "abcde";
	let b: []u8; b.len = 3; b.cap = 4;
	return (s, 77, b);
};

@test fn int_slice_str() void = {
	let t: (int, []u8, str) = mk_int_slice_str();
	assert(!(t.0 != 42));
	assert(!(len(t.1) != 5));
	assert(!(len(t.2) != 4));
};

@test fn int_slice_str_inferred() void = {
	let t = mk_int_slice_str_inferred();
	assert(!(t.0 != 17));
	assert(!(len(t.1) != 6));
	assert(!(len(t.2) != 3));
};

@test fn slice_str_int() void = {
	let t: ([]u8, str, int) = mk_slice_str_int();
	assert(!(len(t.0) != 7));
	assert(!(len(t.1) != 5));
	assert(!(t.2 != 99));
};

@test fn str_int_slice() void = {
	let t: (str, int, []u8) = mk_str_int_slice();
	assert(!(len(t.0) != 5));
	assert(!(t.1 != 77));
	assert(!(len(t.2) != 3));
};