parser/produce

    cfunction
    src/core/parse.c on line 1055, column 1

    (parser/produce parser &opt wrap)

    Dequeue the next value in the parse queue. Will return nil if no 
    parsed values are in the queue, otherwise will dequeue the next 
    value. If `wrap` is truthy, will return a 1-element tuple that 
    wraps the result. This tuple can be used for source-mapping 
    purposes.