| ⊦ compatmode(str, val, st) ↔ val = noval ∨ is_break_mode(val) ∨ val = return(noval, void_type) ∨ is_return_mode(val) ∧ compat(str, val .val, val .type, st) ∨ is_throw_mode(val) ∧ val .refval ≠ jvmref ∧ compat(str, refval(val .refval), val .type, st) ∧ is_subtype(str, val .type, mkclasstype(`java.lang.Throwable' .class)) |