Struct NativeMapper 

pub struct NativeMapper { /* private fields */ }

Wrapper around NativePositionMapper for NAPI compatibility.

This provides the same functionality as NativePositionMapper but with a different JavaScript class name. Used internally by NativePlugin::get_mapper.

Implementations

impl NativeMapper

pub fn new(mapping: SourceMappingResult) -> Self

Creates a new mapper wrapping the given source mapping.

Arguments

• mapping - The source mapping result from macro expansion

pub fn is_empty(&self) -> bool

Checks if this mapper has no mapping data.

pub fn original_to_expanded(&self, pos: u32) -> u32

Converts a position in the original source to expanded source. See NativePositionMapper::original_to_expanded for details.

pub fn expanded_to_original(&self, pos: u32) -> Option<u32>

Converts a position in the expanded source back to original. See NativePositionMapper::expanded_to_original for details.

pub fn generated_by(&self, pos: u32) -> Option<String>

Returns the name of the macro that generated code at the given position. See NativePositionMapper::generated_by for details.

pub fn map_span_to_original( &self, start: u32, length: u32, ) -> Option<SpanResult>

Maps a span from expanded source to original source. See NativePositionMapper::map_span_to_original for details.

pub fn map_span_to_expanded(&self, start: u32, length: u32) -> SpanResult

Maps a span from original source to expanded source. See NativePositionMapper::map_span_to_expanded for details.

pub fn is_in_generated(&self, pos: u32) -> bool

Checks if a position is inside macro-generated code. See NativePositionMapper::is_in_generated for details.

Trait Implementations

impl FromNapiMutRef for NativeMapper

unsafe fn from_napi_mut_ref( env: napi_env, napi_val: napi_value, ) -> Result<&'static mut Self>

Safety

impl FromNapiRef for NativeMapper

unsafe fn from_napi_ref( env: napi_env, napi_val: napi_value, ) -> Result<&'static Self>

Safety

impl JavaScriptClassExt for NativeMapper

fn into_instance<'scope>( self, env: &'scope Env, ) -> Result<ClassInstance<'scope, Self>>

fn into_reference(self, env: Env) -> Result<Reference<Self>>

fn instance_of<'env, V: JsValue<'env>>(env: &Env, value: &V) -> Result<bool>

impl ObjectFinalize for NativeMapper

fn finalize(self, env: Env) -> Result<(), Error>

impl ToNapiValue for NativeMapper

unsafe fn to_napi_value(env: napi_env, val: NativeMapper) -> Result<napi_value>

Safety

fn into_unknown(self, env: &Env) -> Result<Unknown<'_>, Error>

impl TypeName for &NativeMapper

fn type_name() -> &'static str

fn value_type() -> ValueType

impl TypeName for &mut NativeMapper

fn type_name() -> &'static str

fn value_type() -> ValueType

impl TypeName for NativeMapper

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for &NativeMapper

unsafe fn validate(env: napi_env, napi_val: napi_value) -> Result<napi_value>

Safety

impl ValidateNapiValue for &mut NativeMapper

unsafe fn validate(env: napi_env, napi_val: napi_value) -> Result<napi_value>

Safety