On Thu, 9 May 2024 12:07:22 GMT, Chen Liang <li...@openjdk.org> wrote:
>> src/java.base/share/classes/java/lang/classfile/TypeKind.java line 139: >> >>> 137: case 'V' -> TypeKind.VoidType; >>> 138: default -> throw new IllegalArgumentException("Bad type: " >>> + s); >>> 139: }; >> >> This maps to a `tableswitch`, could you explain why a statically initialized >> array addressed with a custom hash code suppose to be faster? >> Thanks. > > I actually am not sure of the reason; it is indeed a tableswitch in bytecode. > @cl4es might know it better? Generally I agree with the API changes and with the `descriptor.isPrimitive()` test before requesting a descriptor string. However I'm missing the point of the other changes, which only replace this single `tableswitch` with something way more complicated, without clear performance gain. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/19109#discussion_r1595381124