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Removed LambdaMetafactoryUtils

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This commit is contained in:
Konstantin Shandurenko 2021-02-23 18:45:24 +03:00
parent 692dcfed4c
commit ebb061ae39
1 changed files with 0 additions and 40 deletions
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40
src/main/java/net/minestom/server/utils/LambdaMetafactoryUtils.java
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@ -1,40 +0,0 @@
package net.minestom.server.utils;
import java.lang.invoke.LambdaMetafactory;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.function.Function;
import java.util.function.Supplier;
@SuppressWarnings("unchecked")
public class LambdaMetafactoryUtils {
private final static MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
public static <T> Supplier<T> getEmptyConstructor(Class<T> targetClass)
throws Throwable {
MethodHandle handle = LOOKUP.findConstructor(targetClass, MethodType.methodType(void.class));
return (Supplier<T>) LambdaMetafactory.metafactory(
LOOKUP,
"get",
MethodType.methodType(Supplier.class),
handle.type().generic(),
handle,
handle.type()
).getTarget().invokeExact();
}
public static <A, T> Function<A, T> getSingleArgumentConstructor(Class<T> targetClass, Class<A> argumentClass) throws Throwable {
MethodHandle handle = LOOKUP.findConstructor(targetClass, MethodType.methodType(void.class, argumentClass));
return (Function<A, T>) LambdaMetafactory.metafactory(
LOOKUP,
"apply",
MethodType.methodType(Function.class),
handle.type().generic(),
handle,
handle.type()
).getTarget().invokeExact();
}
}