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Yukihiro "Matz" Matsumoto
613b03ac18
when running scripts via mruby -e or file, return values are unused. this adds a no_return_value flag to skip generating unnecessary code. for parallel assignment like a,b = 1,2: - before: 18 bytes, 5 registers, creates temporary array - after: 5 bytes, 3 registers, direct register assignment, no RETURN the flag is set only for the main program, not for libraries loaded with -r option. eval() and mirb continue returning values correctly. Co-authored-by: Claude <noreply@anthropic.com>