66 lines
2.6 KiB
Java
66 lines
2.6 KiB
Java
package org.embeddedt.modernfix.util;
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import com.google.common.collect.ImmutableMap;
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import net.minecraftforge.fml.ModList;
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import net.minecraftforge.forgespi.language.IModFileInfo;
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import org.embeddedt.modernfix.ModernFix;
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import org.embeddedt.modernfix.core.ModernFixMixinPlugin;
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import org.spongepowered.asm.mixin.transformer.ClassInfo;
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import java.lang.reflect.Field;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.jar.Attributes;
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import java.util.jar.Manifest;
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public class ClassInfoManager {
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private static Map<String, ClassInfo> classInfoCache = null;
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public static void clear() {
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if(!ModernFixMixinPlugin.instance.isOptionEnabled("perf.clear_mixin_classinfo.ClassInfoManager"))
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return;
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if(classInfoCache == null) {
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try {
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Field field = ClassInfo.class.getDeclaredField("cache");
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field.setAccessible(true);
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classInfoCache = (Map<String, ClassInfo>)field.get(null);
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} catch(ReflectiveOperationException | RuntimeException e) {
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e.printStackTrace();
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return;
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}
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}
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try {
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classInfoCache.entrySet().removeIf(entry -> !entry.getKey().equals("java/lang/Object") && (entry.getValue() == null || !entry.getValue().isMixin()));
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} catch(RuntimeException e) {
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e.printStackTrace();
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}
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// Clear manifest entries
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int numManifestsCleared = 0;
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for(IModFileInfo mod : ModList.get().getModFiles()) {
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Manifest manifest = mod.getFile().getSecureJar().getManifest();
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if(manifest.getEntries() instanceof HashMap<String, Attributes> entryMap) {
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for (Map.Entry<String, Attributes> entry : entryMap.entrySet()) {
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Attributes attributes = entry.getValue();
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if (attributes.size() == 1 && attributes.getValue("SHA-256-Digest") != null) {
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try {
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entry.setValue(EmptyAttributes.INSTANCE);
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numManifestsCleared++;
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} catch (RuntimeException ignored) {
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}
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}
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}
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}
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}
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if(numManifestsCleared > 0)
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ModernFix.LOGGER.info("Cleared {} manifest attributes", numManifestsCleared);
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}
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static class EmptyAttributes extends Attributes {
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public static final EmptyAttributes INSTANCE = new EmptyAttributes();
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EmptyAttributes() {
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super(1);
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this.map = ImmutableMap.of();
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}
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}
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}
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