d9bb7a1693
Hiding character fetching behind this interface allows us to create more specific implementations when is appropriate. For instance, an instance of `Input` can be created for a `&str`, allowing for borrowing and more efficient peeking and traversing than if we were to fetch characters one at a time and placing them into a temporary buffer.
33 lines
914 B
Rust
33 lines
914 B
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 saphyr_parser::{Event, MarkedEventReceiver, Marker, Parser};
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/// A sink which discards any event sent.
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struct NullSink {}
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impl MarkedEventReceiver for NullSink {
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fn on_event(&mut self, _: Event, _: Marker) {}
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}
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fn main() {
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let args: Vec<_> = env::args().collect();
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let mut f = File::open(&args[1]).unwrap();
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let mut s = String::new();
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f.read_to_string(&mut s).unwrap();
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let mut sink = NullSink {};
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let mut parser = Parser::new_from_str(&s);
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// Load events using our sink as the receiver.
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let begin = std::time::Instant::now();
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parser.load(&mut sink, true).unwrap();
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let end = std::time::Instant::now();
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if args.len() == 3 && args[2] == "--short" {
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println!("{}", (end - begin).as_nanos());
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} else {
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println!("Loaded {}MiB in {:?}", s.len() / 1024 / 1024, end - begin);
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}
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}
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