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package moe.nea.firmament.init;
import net.fabricmc.loader.api.FabricLoader;
import net.fabricmc.loader.api.MappingResolver;
import org.objectweb.asm.Type;
import java.util.List;
public class Intermediary {
private static final MappingResolver RESOLVER = FabricLoader.getInstance().getMappingResolver();
static InterMethod intermediaryMethod(Object object, InterClass returnType, InterClass... args) {
throw new AssertionError("Cannot be called at runtime");
}
static <T> InterClass intermediaryClass() {
throw new AssertionError("Cannot be called at runtime");
}
public static InterClass ofIntermediaryClass(String interClass) {
return new InterClass(Type.getObjectType(interClass.replace('.', '/')));
}
public static InterClass ofClass(Class<?> unmappedClass) {
return new InterClass(Type.getType(unmappedClass));
}
public static InterMethod ofMethod(String intermediary, String ownerType, InterClass returnType, InterClass... argTypes) {
return new InterMethod(intermediary, ofIntermediaryClass(ownerType), returnType, List.of(argTypes));
}
public record InterClass(
Type intermediary
) {
public Type mapped() {
if (intermediary().getSort() != Type.OBJECT)
return intermediary();
return Type.getObjectType(RESOLVER.mapClassName("intermediary", intermediary().getClassName())
.replace('.', '/'));
}
}
public record InterMethod(
String intermediary,
InterClass ownerType,
InterClass returnType,
List<InterClass> argumentTypes
) {
public Type intermediaryDesc() {
return Type.getMethodType(
returnType.intermediary(),
argumentTypes().stream().map(InterClass::intermediary).toArray(Type[]::new)
);
}
public Type mappedDesc() {
return Type.getMethodType(
returnType.mapped(),
argumentTypes().stream().map(InterClass::mapped).toArray(Type[]::new)
);
}
public String mapped() {
return RESOLVER.mapMethodName(
"intermediary",
ownerType.intermediary().getClassName(),
intermediary(),
intermediaryDesc().getDescriptor()
);
}
}
}
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