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rustfmt cli/

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This commit is contained in:
Richard Feldman 2019-09-18 19:00:01 -04:00
parent b0338d06dc
commit 08f9eb883d
1 changed files with 52 additions and 37 deletions
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89
cli/src/main.rs
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@ -1,13 +1,13 @@
extern crate roc;
use std::fs::File;
use std::io::prelude::*;
use roc::expr::Expr;
use roc::eval::{Evaluated, eval, call};
use roc::eval::Evaluated::*;
use roc::eval::{call, eval, Evaluated};
use roc::expr::Expr;
use roc::parse;
use roc::region::{Region, Located};
use roc::region::{Located, Region};
use std::fs::File;
use std::io;
use std::io::prelude::*;
fn main() -> std::io::Result<()> {
let argv = std::env::args().into_iter().collect::<Vec<String>>();
@ -22,7 +22,7 @@ fn main() -> std::io::Result<()> {
let expr = parse::parse_string(contents.as_str()).unwrap();
process_task(eval(expr))
},
}
None => {
println!("Usage: roc FILENAME.roc");
@ -34,11 +34,14 @@ fn main() -> std::io::Result<()> {
fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
match evaluated {
EvalError(region, problem) => {
println!("\n\u{001B}[4mruntime error\u{001B}[24m\n\n{} at {}\n",
format!("{}", problem), format!("line {}, column {}", region.start_line, region.start_col));
println!(
"\n\u{001B}[4mruntime error\u{001B}[24m\n\n{} at {}\n",
format!("{}", problem),
format!("line {}, column {}", region.start_line, region.start_col)
);
Ok(())
},
}
ApplyVariant(name, Some(mut vals)) => {
match name.as_str() {
"Echo" => {
@ -51,9 +54,13 @@ fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
format!("{}", err),
format!("line {}, column {}", region.start_line, region.start_col)
);
},
Some(val) => { panic!("TYPE MISMATCH in Echo: {}", format!("{}", val)); },
None => { panic!("TYPE MISMATCH in Echo: None"); }
}
Some(val) => {
panic!("TYPE MISMATCH in Echo: {}", format!("{}", val));
}
None => {
panic!("TYPE MISMATCH in Echo: None");
}
};
// Print the string to the console, since that's what Echo does!
@ -62,14 +69,17 @@ fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
// Continue with the callback.
let callback = vals.pop().unwrap();
process_task(
call(
Region { start_line: 0, start_col: 0, end_line: 0, end_col: 0 },
callback,
vec![with_zero_loc(Expr::EmptyRecord)]
)
)
},
process_task(call(
Region {
start_line: 0,
start_col: 0,
end_line: 0,
end_col: 0,
},
callback,
vec![with_zero_loc(Expr::EmptyRecord)],
))
}
"Read" => {
// Read a line from from stdin, since that's what Read does!
let mut input = String::new();
@ -79,18 +89,21 @@ fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
// Continue with the callback.
let callback = vals.pop().unwrap();
process_task(
call(
Region { start_line: 0, start_col: 0, end_line: 0, end_col: 0 },
callback,
vec![with_zero_loc(Expr::Str(input.trim().to_string()))]
)
)
},
process_task(call(
Region {
start_line: 0,
start_col: 0,
end_line: 0,
end_col: 0,
},
callback,
vec![with_zero_loc(Expr::Str(input.trim().to_string()))],
))
}
"Success" => {
// We finished all our tasks. Great! No need to print anything.
Ok(())
},
}
_ => {
// We don't recognize this variant, so display it and exit.
display_val(ApplyVariant(name, Some(vals)));
@ -98,7 +111,7 @@ fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
Ok(())
}
}
},
}
output => {
// We don't recognize this value, so display it and exit.
display_val(output);
@ -109,16 +122,18 @@ fn process_task(evaluated: Evaluated) -> std::io::Result<()> {
}
fn with_zero_loc<T>(val: T) -> Located<T> {
Located::new(val, Region {
start_line: 0,
start_col: 0,
Located::new(
val,
Region {
start_line: 0,
start_col: 0,
end_line: 0,
end_col: 0,
})
end_line: 0,
end_col: 0,
},
)
}
fn display_val(evaluated: Evaluated) {
println!("\n\u{001B}[4mroc out\u{001B}[24m\n\n{}\n", evaluated);
}