Trait SourceMapper 

pub trait SourceMapper: Send + Sync {
    // Required methods
    fn lookup_char_pos(&self, pos: BytePos) -> Loc;
    fn span_to_lines(&self, sp: Span) -> FileLinesResult;
    fn span_to_string(&self, sp: Span) -> String;
    fn span_to_filename(&self, sp: Span) -> Lrc<FileName> ;
    fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span>;
    fn call_span_if_macro(&self, sp: Span) -> Span;
    fn doctest_offset_line(&self, line: usize) -> usize;
    fn span_to_snippet(&self, sp: Span) -> Result<String, Box<SpanSnippetError>>;

    // Provided method
    fn map_raw_pos(&self, raw_pos: BytePos) -> BytePos { ... }
}

Required Methods

fn lookup_char_pos(&self, pos: BytePos) -> Loc

fn span_to_lines(&self, sp: Span) -> FileLinesResult

fn span_to_string(&self, sp: Span) -> String

fn span_to_filename(&self, sp: Span) -> Lrc<FileName>

fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span>

fn call_span_if_macro(&self, sp: Span) -> Span

fn doctest_offset_line(&self, line: usize) -> usize

fn span_to_snippet(&self, sp: Span) -> Result<String, Box<SpanSnippetError>>

Provided Methods

fn map_raw_pos(&self, raw_pos: BytePos) -> BytePos

This function is called to change the BytePos in AST into an unmapped, real value.

By default, it returns the raw value because by default, the AST stores original values.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl SourceMapper for SourceMap