diff options
Diffstat (limited to 'src/lux/compiler/case.clj')
| -rw-r--r-- | src/lux/compiler/case.clj | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/src/lux/compiler/case.clj b/src/lux/compiler/case.clj index 64237f3db..20c90d661 100644 --- a/src/lux/compiler/case.clj +++ b/src/lux/compiler/case.clj @@ -82,22 +82,26 @@ (.visitJumpInsn Opcodes/GOTO $target)) (&a-case/$TupleTestAC ?members) - (doto writer - (.visitTypeInsn Opcodes/CHECKCAST "[Ljava/lang/Object;") - (-> (doto (.visitInsn Opcodes/DUP) - (.visitLdcInsn (int idx)) - (.visitInsn Opcodes/AALOAD) - (compile-match test $next $sub-else) - (.visitLabel $sub-else) - (.visitInsn Opcodes/POP) - (.visitJumpInsn Opcodes/GOTO $else) - (.visitLabel $next)) - (->> (|let [[idx test] idx+member - $next (new Label) - $sub-else (new Label)]) - (doseq [idx+member (->> ?members &/enumerate &/->seq)]))) - (.visitInsn Opcodes/POP) - (.visitJumpInsn Opcodes/GOTO $target)) + (if (&/|empty? ?members) + (doto writer + (.visitInsn Opcodes/POP) + (.visitJumpInsn Opcodes/GOTO $target)) + (doto writer + (.visitTypeInsn Opcodes/CHECKCAST "[Ljava/lang/Object;") + (-> (doto (.visitInsn Opcodes/DUP) + (.visitLdcInsn (int idx)) + (.visitInsn Opcodes/AALOAD) + (compile-match test $next $sub-else) + (.visitLabel $sub-else) + (.visitInsn Opcodes/POP) + (.visitJumpInsn Opcodes/GOTO $else) + (.visitLabel $next)) + (->> (|let [[idx test] idx+member + $next (new Label) + $sub-else (new Label)]) + (doseq [idx+member (->> ?members &/enumerate &/->seq)]))) + (.visitInsn Opcodes/POP) + (.visitJumpInsn Opcodes/GOTO $target))) (&a-case/$VariantTestAC ?tag ?count ?test) (doto writer |