forked from M-Labs/nac3
112 lines
2.3 KiB
Rust
112 lines
2.3 KiB
Rust
use std::io;
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use std::io::Write;
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use std::process::exit;
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mod cslice {
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// copied from https://github.com/dherman/cslice
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use std::marker::PhantomData;
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use std::slice;
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#[repr(C)]
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#[derive(Clone, Copy)]
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pub struct CSlice<'a, T> {
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base: *const T,
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len: usize,
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marker: PhantomData<&'a ()>,
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}
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impl<'a, T> AsRef<[T]> for CSlice<'a, T> {
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fn as_ref(&self) -> &[T] {
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unsafe { slice::from_raw_parts(self.base, self.len) }
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}
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}
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}
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#[no_mangle]
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pub extern "C" fn output_int32(x: i32) {
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println!("{}", x);
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}
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#[no_mangle]
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pub extern "C" fn output_int64(x: i64) {
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println!("{}", x);
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}
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#[no_mangle]
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pub extern "C" fn output_uint32(x: u32) {
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println!("{}", x);
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}
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#[no_mangle]
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pub extern "C" fn output_uint64(x: u64) {
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println!("{}", x);
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}
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#[no_mangle]
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pub extern "C" fn output_float64(x: f64) {
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// debug output to preserve the digits after the decimal points
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// to match python `print` function
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println!("{:?}", x);
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}
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#[no_mangle]
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pub extern "C" fn output_asciiart(x: i32) {
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let chars = " .,-:;i+hHM$*#@ ";
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if x < 0 {
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println!("");
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} else {
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print!("{}", chars.chars().nth(x as usize).unwrap());
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}
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}
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#[no_mangle]
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pub extern "C" fn output_str(x: &cslice::CSlice<u8>) {
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for e in x.as_ref().iter() {
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print!("{}", char::from(*e));
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}
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println!();
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}
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#[no_mangle]
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pub extern "C" fn output_int32_list(x: &cslice::CSlice<i32>) {
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print!("[");
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let mut it = x.as_ref().iter().peekable();
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while let Some(e) = it.next() {
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if it.peek().is_none() {
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print!("{}", e);
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} else {
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print!("{}, ", e);
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}
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}
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println!("]");
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}
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#[no_mangle]
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pub extern "C" fn __nac3_personality(_state: u32, _exception_object: u32, _context: u32) -> u32 {
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unimplemented!();
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}
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#[no_mangle]
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pub extern "C" fn __nac3_raise(state: u32, exception_object: u32, context: u32) -> u32 {
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writeln!(io::stderr(),
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"__nac3_raise(state: {:#010x}, exception_object: {:#010x}, context: {:#010x})",
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state,
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exception_object,
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context
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).unwrap();
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exit(101);
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}
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#[no_mangle]
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pub extern "C" fn __nac3_end_catch() {}
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extern "C" {
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fn run() -> i32;
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}
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fn main() {
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unsafe {
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run();
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}
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}
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