55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use std::env;
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use std::fs::File;
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use std::io::prelude::*;
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use std::fmt::Display;
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mod engine;
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use engine::Engine;
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mod fn_register;
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use fn_register::FnRegister;
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mod parser;
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// Todo (in no particular order):
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// * Doc some examples
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// * Hello world
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// * Functions and methods
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// * Registering types
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// * Maintaining state
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// * Overloading
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// * How it works
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// * Arity to 10?
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// * Better error handling in lexer
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// * Remove empty box values?
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fn showit<T: Display>(x: &mut T) -> () {
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println!("{}", x)
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}
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fn main() {
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for fname in env::args().skip(1) {
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let mut engine = Engine::new();
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&(showit as fn(x: &mut i32)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut i64)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut u32)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut u64)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut f32)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut f64)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut bool)->()).register(&mut engine, "print");
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&(showit as fn(x: &mut String)->()).register(&mut engine, "print");
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if let Ok(mut f) = File::open(fname.clone()) {
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let mut contents = String::new();
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if let Ok(_) = f.read_to_string(&mut contents) {
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match engine.eval(contents) {
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Ok(_) => (),
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Err(e) => {println!("Error: {:?}", e)}
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}
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}
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}
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}
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}
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