Enum swc_core::base::sourcemap::DecodedMap

pub enum DecodedMap {
    Regular(SourceMap),
    Index(SourceMapIndex),
    Hermes(SourceMapHermes),
}

Available on crate feature __base only.

Represents the result of a decode operation

This represents either an actual sourcemap or a source map index. Usually the two things are too distinct to provide a common interface however for token lookup and writing back into a writer general methods are provided.

Variants

Regular(SourceMap)

Indicates a regular sourcemap

Index(SourceMapIndex)

Indicates a sourcemap index

Hermes(SourceMapHermes)

Indicates a sourcemap as generated by Metro+Hermes, as used by react-native

Implementations

impl DecodedMap

pub fn from_reader<R>(rdr: R) -> Result<DecodedMap, Error> where
    R: Read, 

Alias for decode.

pub fn to_writer<W>(&self, w: W) -> Result<(), Error> where
    W: Write, 

Writes a decoded sourcemap to a writer.

pub fn lookup_token(&self, line: u32, col: u32) -> Option<Token<'_>>

Shortcut to look up a token on either an index or a regular sourcemap. This method can only be used if the contained index actually contains embedded maps or it will not be able to look up anything.

pub fn get_original_function_name(
    &self,
    line: u32,
    col: u32,
    minified_name: Option<&str>,
    source_view: Option<&SourceView<'_>>
) -> Option<&str>

Returns the original function name.

minified_name and source_view are not always necessary. For instance hermes source maps can provide this information without access to the original sources.

Trait Implementations

impl Clone for DecodedMap

fn clone(&self) -> DecodedMap

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DecodedMap

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

Formats the value using the given formatter.