Module rustc_span::source_map
source · Expand description
Types for tracking pieces of source code within a crate.
The SourceMap
tracks all the source code used within a single crate, mapping
from integer byte positions to the original source code location. Each bit
of source parsed during crate parsing (typically files, in-memory strings,
or various bits of macro expansion) cover a continuous range of bytes in the
SourceMap
and are represented by SourceFile
s. Byte positions are stored in
Span
and used pervasively in the compiler. They are absolute positions
within the SourceMap
, which upon request can be converted to line and column
information, source code snippets, etc.
Re-exports
Modules
Structs
- A FileLoader that uses std::fs to load real files.
- This is a SourceFile identifier that is used to correlate source files between subsequent compilation sessions (which is something we need to do during incremental compilation).
Traits
- An abstraction over the fs operations used by the Parser.
Functions
- Returns the span itself if it doesn’t come from a macro expansion, otherwise return the call site span up to the
enclosing_sp
by following theexpn_data
chain.