MakePos creates a new Pos value with the given base, and (file-absolute) line and column.

NewFileBase returns a new *PosBase for a file with the given (relative and absolute) filenames.

NewInliningBase returns a copy of the orig PosBase with the given inlining index.

NewLinePragmaBase returns a new *PosBase for a line directive of the form //line filename:line:col /*line filename:line:col*/ at position pos.

FileSymPrefix is the linker symbol prefix that used to be used for linker pseudo-symbols representing file names.

It is expected that the front end or a phase in SSA will usually generate positions tagged with PosDefaultStmt, but note statement boundaries with PosIsStmt.

NoPos is a valid unknown position.

NoXPos is a valid unknown position.

A Pos encodes a source position consisting of a (line, column) number pair and a position base.

A PosBase encodes a filename and base position.

A PosTable tracks Pos -> XPos conversions and vice versa.

XPos is a more compact representation of Pos.