fix: split large epsilon fan-outs to avoid instruction size panic#278
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fix: split large epsilon fan-outs to avoid instruction size panic#278
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Summary
MAX_MATCH_PAYLOAD_SLOTSconstant (28) to bytecode moduleemit_epsilonto cascade large successor lists into multiple instructionsWhy
Tagged alternations with 27+ branches caused a panic at
ir.rs:302because theMatch64instruction can only hold 28 payload slots. The fix splits large fan-outs into a cascade of epsilon transitions, preserving NFA semantics.Reproducer:
Q = [A0: (id) @x0 A1: (id) @x1 ... A29: (id) @x29]