//ww:run-exit 0
// #34 close: append() accepts a struct CALL rvalue element — GP
// register-class receive (24B str+i32), odd sub-8 (3B), and sized
// tail (4B) shapes, evaluated pre-grow into a per-site scratch.
package main;
type gp24 = struct { name: str, id: i32 };
type odd3 = struct { a: u8, b: u8, c: u8 };
type tail4 = struct { v: i32 };
fn mkgp(id: i32) gp24 = { let e: gp24; e.name = "x"; e.id = id; return e; };
fn mkodd() odd3 = { let e: odd3; e.a = 1u8; e.b = 2u8; e.c = 3u8; return e; };
fn mktail() tail4 = { let e: tail4; e.v = 5; return e; };
fn main() i32 = {
	let gs: []gp24 = [];
	append(gs, mkgp(7));
	append(gs, mkgp(9));
	if (gs.len != 2 || gs[0].id != 7 || gs[1].id != 9) { return 1; };
	if (gs[0].name.len != 1) { return 2; };
	let os_: []odd3 = [];
	append(os_, mkodd());
	if (os_[0].a != 1u8 || os_[0].c != 3u8) { return 3; };
	let ts: []tail4 = [];
	append(ts, mktail());
	if (ts[0].v != 5) { return 4; };
	return 0;
};