bjoernager/rust
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Inline implementation of lookup_line

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to simplify the implementation and avoid unnecessary
conversions from `Option<usize>` to `isize` and back.
This commit is contained in:
Tomasz Miąsko 2021-07-05 00:00:00 +00:00
parent aa65b08b1d
commit 1719d45013
2 changed files with 16 additions and 25 deletions
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21
compiler/rustc_span/src/tests.rs
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@ -2,18 +2,21 @@ use super::*;
#[test]
fn test_lookup_line() {
let lines = &[BytePos(3), BytePos(17), BytePos(28)];
let source = "abcdefghijklm\nabcdefghij\n...".to_owned();
let sf =
SourceFile::new(FileName::Anon(0), source, BytePos(3), SourceFileHashAlgorithm::Sha256);
assert_eq!(sf.lines.as_slice(), &[BytePos(3), BytePos(17), BytePos(28)]);
assert_eq!(lookup_line(lines, BytePos(0)), -1);
assert_eq!(lookup_line(lines, BytePos(3)), 0);
assert_eq!(lookup_line(lines, BytePos(4)), 0);
assert_eq!(sf.lookup_line(BytePos(0)), None);
assert_eq!(sf.lookup_line(BytePos(3)), Some(0));
assert_eq!(sf.lookup_line(BytePos(4)), Some(0));
assert_eq!(lookup_line(lines, BytePos(16)), 0);
assert_eq!(lookup_line(lines, BytePos(17)), 1);
assert_eq!(lookup_line(lines, BytePos(18)), 1);
assert_eq!(sf.lookup_line(BytePos(16)), Some(0));
assert_eq!(sf.lookup_line(BytePos(17)), Some(1));
assert_eq!(sf.lookup_line(BytePos(18)), Some(1));
assert_eq!(lookup_line(lines, BytePos(28)), 2);
assert_eq!(lookup_line(lines, BytePos(29)), 2);
assert_eq!(sf.lookup_line(BytePos(28)), Some(2));
assert_eq!(sf.lookup_line(BytePos(29)), Some(2));
}
#[test]