fb68273eed
Bugs fixed: - %= and the new assignment operators were not emitting error on invalid types. - List globals referenced in another global were duplicated entirely. - Properly recognize -option in the command line. Rest: - Complete overhaul of the internal data structure. - Got rid of the symbol table plus mini-trees, and made everything one big tree plus an auxiliary symbol table. - No more special case hacks like using tuples instead of lists... - Got rid of the EXPR hack. - Dict-based, rather than list-based. Allows adding arbitrary data to any node or symbol entry. - Added a few coverage tests for the new code. - Return values can now be chained; the functions parameter requirement is gone. Still not fully convinced, though. My guess is that a parser object should be passed between functions instead. Will do for now.