Struct Mapping 

pub struct Mapping {
    pub generated_line: u32,
    pub generated_column: u32,
    pub source: u32,
    pub original_line: u32,
    pub original_column: u32,
    pub name: u32,
    pub is_range_mapping: bool,
}

A single decoded mapping entry. Compact at 28 bytes (6 × u32 + bool with padding).

Maps a position in the generated output to an optional position in an original source file. Stored contiguously in a Vec<Mapping> sorted by (generated_line, generated_column) for cache-friendly binary search.

Fields

generated_line: u32

0-based line in the generated output.

generated_column: u32

0-based column in the generated output.

source: u32

Index into SourceMap::sources. u32::MAX if this mapping has no source.

original_line: u32

0-based line in the original source (only meaningful when source != u32::MAX).

original_column: u32

0-based column in the original source (only meaningful when source != u32::MAX).

name: u32

Index into SourceMap::names. u32::MAX if this mapping has no name.

is_range_mapping: bool

Whether this mapping is a range mapping (ECMA-426).

Trait Implementations

impl Clone for Mapping

fn clone(&self) -> Mapping

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Mapping

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

Formats the value using the given formatter.

impl Copy for Mapping