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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::io::{BufferedReader, File};
use regex::Regex;
pub struct ExpectedError {
pub line: uint,
pub kind: String,
pub msg: String,
}
pub static EXPECTED_PATTERN : &'static str = r"//~(?P<adjusts>\^*)\s*(?P<kind>\S*)\s*(?P<msg>.*)";
// Load any test directives embedded in the file
pub fn load_errors(re: &Regex, testfile: &Path) -> Vec<ExpectedError> {
let mut rdr = BufferedReader::new(File::open(testfile).unwrap());
rdr.lines().enumerate().filter_map(|(line_no, ln)| {
parse_expected(line_no + 1, ln.unwrap().as_slice(), re)
}).collect()
}
fn parse_expected(line_num: uint, line: &str, re: &Regex) -> Option<ExpectedError> {
re.captures(line).and_then(|caps| {
let adjusts = caps.name("adjusts").len();
let kind = caps.name("kind").to_ascii().to_lower().into_str().to_string();
let msg = caps.name("msg").trim().to_string();
debug!("line={} kind={} msg={}", line_num, kind, msg);
Some(ExpectedError {
line: line_num - adjusts,
kind: kind,
msg: msg,
})
})
}
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