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use std::{
io::{BufRead, Write},
sync::{Arc, Mutex},
};
use crate::{
data::{
self,
int::{INT_MAX, INT_MIN},
Data, MersDataWInfo, Type,
},
program::{self, run::CheckInfo},
};
use super::{
gen::{
function::{func, func_err},
IntR, OneOrNone,
},
Config,
};
impl Config {
/// `println: fn` prints to stdout and adds a newline to the end
/// `print: fn` prints to stdout
/// `eprintln: fn` prints to stderr and adds a newline to the end
/// `eprint: fn` prints to stderr
/// `debug: fn` debug-prints any value
/// `read_line: fn` reads a line from stdin and returns it
/// `exit: fn` exits the program with the given exit code. returns `<unreachable>`, just like `panic`
pub fn with_stdio(self) -> Self {
self
// .add_var(
// "read_line",
// data::function::Function {
// info: program::run::Info::neverused(),
// info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
// out: Ok(Arc::new(|a, _i| {
// if a.is_zero_tuple() {
// Ok(Type::newm(vec![
// Arc::new(data::tuple::TupleT(vec![Type::new(data::string::StringT)])),
// Arc::new(data::tuple::TupleT(vec![])),
// ]))
// } else {
// Err(CheckError::new().msg(vec![
// ("expected (), got ".to_owned(), None),
// (a.to_string(), Some(EColor::FunctionArgument)),
// ]))
// }
// })),
// run: Arc::new(|_a, _i| {
// Ok(if let Some(Ok(line)) = std::io::stdin().lines().next() {
// Data::one_tuple(Data::new(data::string::String(line)))
// } else {
// Data::empty_tuple()
// })
// }),
// inner_statements: None,
// },
// )
.add_var(
"exit",
func_err(|code: IntR<INT_MIN, INT_MAX>, i| {
if i.global
.allow_process_exit_via_exit
.load(std::sync::atomic::Ordering::Relaxed)
{
std::process::exit(code.0.try_into().unwrap_or(255));
} else {
format!("Program exited with status code {}", code.0).into()
}
}),
)
.add_var(
"read_line",
func(|_: (), i| {
let next_line = if let Some(stdin) = &mut *i.global.stdin.lock().unwrap() {
std::io::BufReader::new(stdin).lines().next()
} else {
std::io::stdin().lines().next()
};
Ok(if let Some(Ok(line)) = next_line {
OneOrNone(Some(line))
} else {
OneOrNone(None)
})
}),
)
.add_var(
"debug",
data::function::Function {
info: program::run::Info::neverused(),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
fixed_type: None,
fixed_type_out: Arc::new(Mutex::new(None)),
out: Ok(Arc::new(|a, _i| Ok(a.clone()))),
run: Arc::new(|a, i| {
let a2 = a.get();
let ty = a2.as_type();
let ty = ty.with_info(i);
let v = a2.with_info(i);
if let Some((_, stderr)) = &mut *i.global.stdout.lock().unwrap() {
let _ = write!(stderr, "{ty} :: {v}");
let _ = stderr.flush();
} else {
eprintln!("{ty} :: {v}");
}
drop(a2);
Ok(a)
}),
inner_statements: None,
},
)
.add_var(
"eprint",
data::function::Function {
info: program::run::Info::neverused(),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
fixed_type: None,
fixed_type_out: Arc::new(Mutex::new(None)),
out: Ok(Arc::new(|_a, _i| Ok(Type::empty_tuple()))),
run: Arc::new(|a, i| {
if let Some((_, stderr)) = &mut *i.global.stdout.lock().unwrap() {
let _ = write!(stderr, "{}", a.get().with_info(i));
let _ = stderr.flush();
} else {
eprint!("{}", a.get().with_info(i));
let _ = std::io::stderr().lock().flush();
}
Ok(Data::empty_tuple())
}),
inner_statements: None,
},
)
.add_var(
"eprintln",
data::function::Function {
info: program::run::Info::neverused(),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
fixed_type: None,
fixed_type_out: Arc::new(Mutex::new(None)),
out: Ok(Arc::new(|_a, _i| Ok(Type::empty_tuple()))),
run: Arc::new(|a, i| {
if let Some((_, stderr)) = &mut *i.global.stdout.lock().unwrap() {
let _ = writeln!(stderr, "{}", a.get().with_info(i));
let _ = stderr.flush();
} else {
eprintln!("{}", a.get().with_info(i));
}
Ok(Data::empty_tuple())
}),
inner_statements: None,
},
)
.add_var(
"print",
data::function::Function {
info: program::run::Info::neverused(),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
fixed_type: None,
fixed_type_out: Arc::new(Mutex::new(None)),
out: Ok(Arc::new(|_a, _i| Ok(Type::empty_tuple()))),
run: Arc::new(|a, i| {
if let Some((stdout, _)) = &mut *i.global.stdout.lock().unwrap() {
let _ = write!(stdout, "{}", a.get().with_info(i));
let _ = stdout.flush();
} else {
print!("{}", a.get().with_info(i));
let _ = std::io::stdout().lock().flush();
}
Ok(Data::empty_tuple())
}),
inner_statements: None,
},
)
.add_var(
"println",
data::function::Function {
info: program::run::Info::neverused(),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
fixed_type: None,
fixed_type_out: Arc::new(Mutex::new(None)),
out: Ok(Arc::new(|_a, _i| Ok(Type::empty_tuple()))),
run: Arc::new(|a, i| {
if let Some((stdout, _)) = &mut *i.global.stdout.lock().unwrap() {
let _ = writeln!(stdout, "{}", a.get().with_info(i));
let _ = stdout.flush();
} else {
println!("{}", a.get().with_info(i));
}
Ok(Data::empty_tuple())
}),
inner_statements: None,
},
)
}
}