Struct ConcatSourceMapBuilder

pub struct ConcatSourceMapBuilder { /* private fields */ }

The ConcatSourceMapBuilder is a helper to concat sourcemaps.

Implementations

impl ConcatSourceMapBuilder

pub fn with_capacity( names_len: usize, sources_len: usize, tokens_len: usize, token_chunks_len: usize, ) -> Self

Create new ConcatSourceMapBuilder with pre-allocated capacity.

Allocating capacity before adding sourcemaps with add_sourcemap avoids memory copies and increases performance.

Alternatively, use from_sourcemaps.

pub fn from_sourcemaps(sourcemap_and_line_offsets: &[(&SourceMap, u32)]) -> Self

Create new ConcatSourceMapBuilder from an array of SourceMaps and line offsets.

This avoids memory copies versus creating builder with ConcatSourceMapBuilder::default() and then adding sourcemaps individually with add_sourcemap.

Example

let builder = ConcatSourceMapBuilder::from_sourcemaps(&[
  (&sourcemap1, 0),
  (&sourcemap2, 100),
]);
let combined_sourcemap = builder.into_sourcemap();

pub fn add_sourcemap(&mut self, sourcemap: &SourceMap, line_offset: u32)

pub fn into_sourcemap(self) -> SourceMap

Trait Implementations

impl Debug for ConcatSourceMapBuilder

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

Formats the value using the given formatter.

impl Default for ConcatSourceMapBuilder

fn default() -> ConcatSourceMapBuilder

Returns the “default value” for a type.