schala/schala-repl/src/repl/repl_options.rs

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use crate::language::DebugAsk;
use std::io::{Read, Write};
use std::collections::HashSet;
use std::fs::File;
#[derive(Serialize, Deserialize)]
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pub struct ReplOptions {
pub debug_asks: HashSet<DebugAsk>,
pub show_total_time: bool,
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pub show_stage_times: bool,
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}
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impl ReplOptions {
pub fn new() -> ReplOptions {
ReplOptions {
debug_asks: HashSet::new(),
show_total_time: true,
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show_stage_times: false,
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}
}
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pub fn save_to_file(&self, filename: &str) {
let res = File::create(filename)
.and_then(|mut file| {
let buf = crate::serde_json::to_string(self).unwrap();
file.write_all(buf.as_bytes())
});
if let Err(err) = res {
println!("Error saving {} file {}", filename, err);
}
}
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pub fn load_from_file(filename: &str) -> Result<ReplOptions, ()> {
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File::open(filename)
.and_then(|mut file| {
let mut contents = String::new();
file.read_to_string(&mut contents)?;
Ok(contents)
})
.and_then(|contents| {
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let output: ReplOptions = crate::serde_json::from_str(&contents)?;
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Ok(output)
})
.map_err(|_| ())
}
}