use std::io; use std::io::Write; use std::process::exit; mod cslice { // copied from https://github.com/dherman/cslice use std::marker::PhantomData; use std::slice; #[repr(C)] #[derive(Clone, Copy)] pub struct CSlice<'a, T> { base: *const T, len: usize, marker: PhantomData<&'a ()>, } impl<'a, T> AsRef<[T]> for CSlice<'a, T> { fn as_ref(&self) -> &[T] { unsafe { slice::from_raw_parts(self.base, self.len) } } } } #[no_mangle] pub extern "C" fn output_int32(x: i32) { println!("{}", x); } #[no_mangle] pub extern "C" fn output_int64(x: i64) { println!("{}", x); } #[no_mangle] pub extern "C" fn output_uint32(x: u32) { println!("{}", x); } #[no_mangle] pub extern "C" fn output_uint64(x: u64) { println!("{}", x); } #[no_mangle] pub extern "C" fn output_float64(x: f64) { // debug output to preserve the digits after the decimal points // to match python `print` function println!("{:?}", x); } #[no_mangle] pub extern "C" fn output_asciiart(x: i32) { let chars = " .,-:;i+hHM$*#@ "; if x < 0 { println!(""); } else { print!("{}", chars.chars().nth(x as usize).unwrap()); } } #[no_mangle] pub extern "C" fn output_str(x: &cslice::CSlice) { for e in x.as_ref().iter() { print!("{}", char::from(*e)); } println!(); } #[no_mangle] pub extern "C" fn output_int32_list(x: &cslice::CSlice) { print!("["); let mut it = x.as_ref().iter().peekable(); while let Some(e) = it.next() { if it.peek().is_none() { print!("{}", e); } else { print!("{}, ", e); } } println!("]"); } #[no_mangle] pub extern "C" fn __nac3_personality(_state: u32, _exception_object: u32, _context: u32) -> u32 { unimplemented!(); } #[no_mangle] pub extern "C" fn __nac3_raise(state: u32, exception_object: u32, context: u32) -> u32 { writeln!(io::stderr(), "__nac3_raise(state: {:#010x}, exception_object: {:#010x}, context: {:#010x})", state, exception_object, context ).unwrap(); exit(101); } #[no_mangle] pub extern "C" fn __nac3_end_catch() {} extern "C" { fn run() -> i32; } fn main() { unsafe { run(); } }