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use std::io::{Write, stdout, stdin};
use chrysanthemum::*;
use chrysanthemum::ast::*;
fn main() {
println!("chrysanthemum");
let mut input = String::new();
loop {
println!("infer, check, or execute? (i/c/e)");
print!("\x1b[1m==> \x1b[22m");
stdout().flush().unwrap();
input.clear();
stdin().read_line(&mut input).unwrap();
match input.trim() {
"i" | "g" | "infer" => {
println!("enter partially annotated expression to fully infer");
print!("\x1b[1m====> \x1b[22m");
stdout().flush().unwrap();
input.clear();
stdin().read_line(&mut input).unwrap();
simple::infer(Context::new(), parser::parse(&input));
},
"c" | "t" | "check" | "typecheck" => {
println!("enter fully annotated expression to typecheck");
print!("\x1b[1m====> \x1b[22m");
stdout().flush().unwrap();
input.clear();
stdin().read_line(&mut input).unwrap();
simple::check(Context::new(), parser::parse(&input), Type::Empty);
},
"e" | "r" | "execute" | "run" => {
println!("enter expression to execute");
print!("\x1b[1m====> \x1b[22m");
stdout().flush().unwrap();
input.clear();
stdin().read_line(&mut input).unwrap();
println!("{:?}", simple::execute(Context::new(), parser::parse(&input)));
},
_ => println!("invalid option {}. please try again.", input.trim())
}
}
}
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