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  • Ondřej Zajíček's avatar
    a2527ee5
    Filter: Improve handling of stack frames in filter bytecode · a2527ee5
    Ondřej Zajíček authored and Ondřej Zajíček's avatar Ondřej Zajíček committed 
    When f_line is done, we have to pop the stack frame. The old code just
removed nominal number of args/vars. Change it to use stored ventry value
modified by number of returned values. This allows to allocate variables
on a stack frame during execution of f_lines instead of just at start.

But we need to know the number of returned values for a f_line. It is 1
for term, 0 for cmd. Store that to f_line during linearization.
    a2527ee5
    Filter: Improve handling of stack frames in filter bytecode
    Ondřej Zajíček authored and Ondřej Zajíček's avatar Ondřej Zajíček committed 
    When f_line is done, we have to pop the stack frame. The old code just
removed nominal number of args/vars. Change it to use stored ventry value
modified by number of returned values. This allows to allocate variables
on a stack frame during execution of f_lines instead of just at start.

But we need to know the number of returned values for a f_line. It is 1
for term, 0 for cmd. Store that to f_line during linearization.