On Tue, 24 May 2022 17:26:52 GMT, Roger Riggs <rri...@openjdk.org> wrote:
> Did you consider switch (class) {...} in PrimitiveTypeInfo.get?
I don't think we can switch on class instances yet. Even with preview enabled,
best I can get is (for type incompatibility of `Class<?>` and `Class<Integer>`,
etc.)
return switch (cl) {
case Class<?> e && e == int.class -> 1;
case Class<?> e && e == long.class -> 2;
case Class<?> e && e == boolean.class -> 3;
case Class<?> e && e == short.class -> 4;
case Class<?> e && e == byte.class -> 5;
case Class<?> e && e == char.class -> 6;
case Class<?> e && e == float.class -> 7;
case Class<?> e && e == double.class -> 8;
default -> 0;
};
to avoid type incompatibility; this is in turn implemented by a bootstrap
method and a loop, which is of course obviously much slower.
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PR: https://git.openjdk.java.net/jdk/pull/8801
