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Swift3.1 crashes caused 2 file.
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| protocol A {} | |
| class O {} | |
| extension O: A {} |
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| struct F<X: O> where X: A { | |
| } | |
| extension F { | |
| func f() -> F { | |
| return F() | |
| } | |
| } |
条件は
1. Generics型にクラスを与え、重複した条件で束縛する。
2. extensionに自身を返す関数を定義。
3. クラスの定義とファイルを分離する。
の3つかしら
4. ReturnSelfFunction.swiftを先にswiftcに渡す という変態じみた条件がありました。
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実際にはFのwhere句は不要なので、削除すれば良いだけではある。