The standard library symbolmapstack package implements one of the three core compiler state tables, the other two being linking_mapstack and inlining_mapstack.
The symbolmapstack package implements the Symbolmapstack api.
The symbolmapstack package source code is in src/lib/compiler/front/typer-stuff/symbolmapstack/symbolmapstack.pkg.
The above information is manually maintained and may contain errors.
Symbolmapstack