lib_ruby_parser/source/
source_line.rs

1#[repr(C)]
2#[derive(Debug, Clone, Default, PartialEq, Eq)]
3/// Representation of a source line in a source file
4pub struct SourceLine {
5    /// Start of the line (in bytes)
6    pub start: usize,
7
8    /// End of the line (in bytes)
9    pub end: usize,
10
11    /// `true` if line ends with EOF char (which is true for the last line in the file)
12    pub ends_with_eof: bool,
13}
14
15impl SourceLine {
16    /// Returns length of the line
17    pub fn len(&self) -> usize {
18        self.end - self.start
19    }
20
21    /// Returns true if SourceLine is empty (i.e. has `len = 0`)
22    pub fn is_empty(&self) -> bool {
23        self.len() == 0
24    }
25
26    /// Returns location of the last non-EOF, non-EOL character
27    pub fn line_end(&self) -> usize {
28        let mut result = self.end;
29        if !self.ends_with_eof {
30            result -= 1 // exclude trailing \n
31        }
32        result
33    }
34}

lib_ruby_parser/source/source_line.rs

lib_ruby_parser/source/
source_line.rs