77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
/*
|
|
* Minecraft Forge
|
|
* Copyright (c) 2016-2020.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation version 2.1
|
|
* of the License.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
package net.minecraftforge.common.asm;
|
|
|
|
import java.nio.file.Path;
|
|
import java.util.EnumSet;
|
|
import java.util.List;
|
|
import java.util.concurrent.atomic.AtomicBoolean;
|
|
|
|
import org.objectweb.asm.Opcodes;
|
|
import org.objectweb.asm.Type;
|
|
import org.objectweb.asm.tree.AnnotationNode;
|
|
import org.objectweb.asm.tree.ClassNode;
|
|
import cpw.mods.modlauncher.serviceapi.ILaunchPluginService;
|
|
|
|
/**
|
|
* Removes the final modifier from fields with the @CapabilityInject annotation, prevents the JITer from in lining them so our runtime replacements can work.
|
|
*/
|
|
public class CapabilityInjectDefinalize implements ILaunchPluginService {
|
|
|
|
private final String CAP = "Lnet/minecraftforge/common/capabilities/Capability;"; //Don't directly reference this to prevent class loading.
|
|
private final String CAP_INJECT = "Lnet/minecraftforge/common/capabilities/CapabilityInject;"; //Don't directly reference this to prevent class loading.
|
|
|
|
@Override
|
|
public String name() {
|
|
return "capability_inject_definalize";
|
|
}
|
|
|
|
private static final EnumSet<Phase> YAY = EnumSet.of(Phase.AFTER);
|
|
private static final EnumSet<Phase> NAY = EnumSet.noneOf(Phase.class);
|
|
|
|
@Override
|
|
public EnumSet<Phase> handlesClass(Type classType, boolean isEmpty)
|
|
{
|
|
return isEmpty ? NAY : YAY;
|
|
}
|
|
|
|
private boolean hasHolder(List<AnnotationNode> lst)
|
|
{
|
|
return lst != null && lst.stream().anyMatch(n -> n.desc.equals(CAP_INJECT));
|
|
}
|
|
|
|
@Override
|
|
public boolean processClass(Phase phase, ClassNode classNode, Type classType)
|
|
{
|
|
final int flags = Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL;
|
|
AtomicBoolean changed = new AtomicBoolean();
|
|
classNode.fields.stream().filter(f -> ((f.access & flags) == flags) && f.desc.equals(CAP) && hasHolder(f.visibleAnnotations)).forEach(f ->
|
|
{
|
|
int prev = f.access;
|
|
f.access &= ~Opcodes.ACC_FINAL; //Strip final
|
|
f.access |= Opcodes.ACC_SYNTHETIC; //Add Synthetic so we can check in runtime.
|
|
changed.compareAndSet(false, prev != f.access);
|
|
});
|
|
|
|
return changed.get();
|
|
}
|
|
|
|
}
|