// The reference side of the web layout corpus (run.sh): rustc builds this for the target
// (a wasm32 cdylib run in node, or a host binary as the wasm64 reference) and it prints one line
// per row: `<type>|<size>|<align>|<field>=<offset>,...`.
#![allow(dead_code, static_mut_refs)]
include!("corpus.rs");

thread_local! {
    static OUT: RefCell<String> = RefCell::new(String::new());
}

fn line(s: String) {
    OUT.with(|o| {
        let mut o = o.borrow_mut();
        o.push_str(&s);
        o.push('\n');
    });
}

macro_rules! sz {
    ($($t:ty),* $(,)?) => {
        $( line(format!("{}|{}|{}|", stringify!($t), std::mem::size_of::<$t>(), std::mem::align_of::<$t>())); )*
    };
}

macro_rules! offs {
    ($t:ty: $($f:tt),*) => {
        line(format!("{}|{}|{}|{}", stringify!($t), std::mem::size_of::<$t>(), std::mem::align_of::<$t>(),
            [$(format!("{}={}", stringify!($f), std::mem::offset_of!($t, $f))),*].join(",")));
    };
}

fn table() -> String {
    run();
    OUT.with(|o| o.borrow().clone())
}

fn run() {
    OUT.with(|o| o.borrow_mut().clear());
    web_layout_rows_fn();
}

fn web_layout_rows_fn() {
    web_layout_rows!();
}

#[cfg(target_family = "wasm")]
static mut TABLE: Option<String> = None;

/// node: `table_ptr()` / `table_len()` after `make_table()`.
#[cfg(target_family = "wasm")]
#[no_mangle]
pub extern "C" fn make_table() {
    unsafe { TABLE = Some(table()) }
}
#[cfg(target_family = "wasm")]
#[no_mangle]
pub extern "C" fn table_ptr() -> *const u8 {
    unsafe { (*std::ptr::addr_of!(TABLE)).as_ref().unwrap().as_ptr() }
}
#[cfg(target_family = "wasm")]
#[no_mangle]
pub extern "C" fn table_len() -> usize {
    unsafe { (*std::ptr::addr_of!(TABLE)).as_ref().unwrap().len() }
}

#[cfg(not(target_family = "wasm"))]
fn main() {
    print!("{}", table());
}