Struct LineOffsetTable 

pub struct LineOffsetTable { /* private fields */ }

Pre-computed line-start byte-offset table for converting V8 byte offsets into Istanbul line/column positions in O(log n) per lookup.

The source is consumed once at construction; subsequent lookups are allocation-free.

Implementations

impl LineOffsetTable

pub fn from_source(source: &str) -> Self

Build a table from the full source text. The source must be UTF-8 with LF, CRLF, or CR line endings (mixed endings are tolerated).

pub fn position(&self, byte_offset: u32) -> IstanbulPosition

Convert a byte offset to a 1-indexed line + 0-indexed column.

Offsets at or past the end of the source clamp to the last line + remaining column.

Trait Implementations

impl Debug for LineOffsetTable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.