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bc: forbid negative array index #521

Merged
merged 1 commit into from
Mar 25, 2024
Merged

bc: forbid negative array index #521

merged 1 commit into from
Mar 25, 2024

Commits on Mar 25, 2024

  1. bc: forbid negative array index 

    * Negative array index is being caught when accessing a value (p instruction), but is not caught when assigning a value (P instruction)
* Adapt existing guard code from 'p' instruction
* For consistency with undefined-function error, replace YYERROR call with "last INSTR"
* Only the 2nd-from-top ope_stack element is needed; fetch it with splice instead of pop+push dance for $value
    @mknos
    mknos committed Mar 25, 2024
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