Module source_map 

Source mapping: IR path → YAML span, plus macro origin traces (02 §7).

Pure diagnostics — excluded from irHash (02 §12.2): moving a comment or a macro call site must not invalidate resume history.

Structs

MacroOriginFrame

One frame of a macro expansion chain.

SourceMapEntry

One source-map entry.

SourceSpan

A 1-based line/column span in a source file.