Line data    Source code

       1              : //! Byte spans in the script text.
       2              : 
       3              : /// A span of bytes in the script text.
       4              : #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Hash)]
       5              : pub struct TextSpan {
       6              :     /// The byte offset of the start
       7              :     pub offset: u32,
       8              :     /// The length in bytes
       9              :     pub length: u32,
      10              : }
      11              : 
      12              : impl TextSpan {
      13       917865 :     pub const fn new(offset: u32, length: u32) -> Self {
      14       917865 :         Self { offset, length }
      15       917865 :     }
      16              : 
      17              :     /// The end offset (exclusive)
      18       543444 :     pub const fn end(&self) -> u32 {
      19       543444 :         self.offset + self.length
      20       543444 :     }
      21              : 
      22              :     /// The smallest span that covers both spans
      23        11772 :     pub fn cover(self, other: TextSpan) -> TextSpan {
      24        11772 :         let begin = self.offset.min(other.offset);
      25        11772 :         let end = self.end().max(other.end());
      26        11772 :         TextSpan::new(begin, end - begin)
      27        11772 :     }
      28              : }
      29              : 
      30              : impl From<TextSpan> for dashql_buffers::parser::TextSpan {
      31            0 :     fn from(span: TextSpan) -> Self {
      32            0 :         dashql_buffers::parser::TextSpan::new(span.offset, span.length)
      33            0 :     }
      34              : }