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ForgePatch
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Coremods now have a primitive dependency capability. Also, we search mods dir for special 

"TweakClass" manifests. These are using the vanilla tweak mechanism to inject into
Minecraft. Helpful for other "platform" systems, when you don't want to have to deal
with json changes!
This commit is contained in:
Christian 2013-07-11 15:12:23 -04:00
parent 3dd0b5d496
commit caeb0afecf
7 changed files with 308 additions and 184 deletions
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4
fml/common/cpw/mods/fml/common/discovery/JarDiscoverer.java
View File

@ -40,9 +40,9 @@ public class JarDiscoverer implements ITypeDiscoverer
{
jar = new JarFile(candidate.getModContainer());
if (jar.getManifest()!=null && jar.getManifest().getMainAttributes().get("FMLCorePlugin") != null)
if (jar.getManifest()!=null && (jar.getManifest().getMainAttributes().get("FMLCorePlugin") != null || jar.getManifest().getMainAttributes().get("TweakClass") != null))
{
FMLLog.finest("Ignoring coremod %s", candidate.getModContainer());
FMLLog.finest("Ignoring coremod or tweak system %s", candidate.getModContainer());
return foundMods;
}
ZipEntry modInfo = jar.getEntry("mcmod.info");

6
fml/common/cpw/mods/fml/common/launcher/FMLTweaker.java
View File

@ -75,6 +75,7 @@ public class FMLTweaker implements ITweaker {
classLoader.addClassLoaderExclusion("LZMA.");
FMLLaunchHandler.configureForClientLaunch(classLoader, this);
runAdditionalTweaks(classLoader);
FMLLaunchHandler.appendCoreMods();
}
void computeCascadedTweaks(LaunchClassLoader classLoader)
@ -158,4 +159,9 @@ public class FMLTweaker implements ITweaker {
return jarLocation;
}
public void injectCascadingTweak(ITweaker tweaker)
{
cascadedTweaks.add(tweaker);
}
}

4
fml/common/cpw/mods/fml/common/patcher/ClassPatchManager.java
View File

@ -141,7 +141,7 @@ public class ClassPatchManager {
InputStream binpatchesCompressed = getClass().getResourceAsStream("/binpatches.pack.lzma");
if (binpatchesCompressed==null)
{
FMLRelaunchLog.log(Level.SEVERE, "The binary patch set is missing. Things are probably about to go very wrong.");
FMLRelaunchLog.log(Level.SEVERE, "The binary patch set is missing. Either you are in a development environment, or things are not going to work!");
return;
}
LzmaInputStream binpatchesDecompressed = new LzmaInputStream(binpatchesCompressed);
@ -152,7 +152,7 @@ public class ClassPatchManager {
}
catch (Exception e)
{
FMLRelaunchLog.log(Level.SEVERE, e, "Error occurred reading binary patches. Problems may occur");
FMLRelaunchLog.log(Level.SEVERE, e, "Error occurred reading binary patches. Expect severe problems!");
throw Throwables.propagate(e);
}

444
fml/common/cpw/mods/fml/relauncher/CoreModManager.java
View File

@ -13,21 +13,10 @@
package cpw.mods.fml.relauncher;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.FileChannel.MapMode;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
@ -37,24 +26,59 @@ import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.logging.Level;
import com.google.common.collect.ObjectArrays;
import net.minecraft.launchwrapper.ITweaker;
import net.minecraft.launchwrapper.LaunchClassLoader;
import cpw.mods.fml.common.CertificateHelper;
import com.google.common.base.Strings;
import com.google.common.base.Throwables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.ObjectArrays;
import cpw.mods.fml.common.FMLLog;
import cpw.mods.fml.common.launcher.FMLTweaker;
import cpw.mods.fml.common.toposort.TopologicalSort;
import cpw.mods.fml.relauncher.IFMLLoadingPlugin.DependsOn;
import cpw.mods.fml.relauncher.IFMLLoadingPlugin.MCVersion;
import cpw.mods.fml.relauncher.IFMLLoadingPlugin.Name;
import cpw.mods.fml.relauncher.IFMLLoadingPlugin.TransformerExclusions;
public class CoreModManager
{
private static String[] rootPlugins = { "cpw.mods.fml.relauncher.FMLCorePlugin" , "net.minecraftforge.classloading.FMLForgePlugin" };
private static List<String> loadedCoremods = new ArrayList<String>();
private static Map<IFMLLoadingPlugin, File> pluginLocations;
private static List<IFMLLoadingPlugin> loadPlugins;
private static List<FMLPluginWrapper> loadPlugins;
private static boolean deobfuscatedEnvironment;
private static FMLTweaker tweaker;
private static File mcDir;
public static void handleLaunch(File mcDir, LaunchClassLoader classLoader)
private static class FMLPluginWrapper
{
public final String name;
public final IFMLLoadingPlugin coreModInstance;
public final List<String> predepends;
public final File location;
public FMLPluginWrapper(String name, IFMLLoadingPlugin coreModInstance, File location, String... predepends)
{
super();
this.name = name;
this.coreModInstance = coreModInstance;
this.location = location;
this.predepends = Lists.newArrayList(predepends);
}
@Override
public String toString()
{
return String.format("%s {%s}", this.name, this.predepends);
}
}
public static void handleLaunch(File mcDir, LaunchClassLoader classLoader, FMLTweaker tweaker)
{
CoreModManager.mcDir = mcDir;
CoreModManager.tweaker = tweaker;
try
{
// Are we in a 'decompiled' environment?
@ -73,20 +97,21 @@ public class CoreModManager
{
FMLRelaunchLog.fine("Enabling runtime deobfuscation");
}
pluginLocations = new HashMap<IFMLLoadingPlugin, File>();
loadPlugins = new ArrayList<IFMLLoadingPlugin>();
for (String s : rootPlugins)
try
{
try
{
FMLRelaunchLog.finest("Adding coremod for loading %s", s);
IFMLLoadingPlugin plugin = (IFMLLoadingPlugin) Class.forName(s, true, classLoader).newInstance();
loadPlugins.add(plugin);
}
catch (Exception e)
{
// HMMM
}
classLoader.registerTransformer("cpw.mods.fml.common.asm.transformers.PatchingTransformer");
}
catch (Exception e)
{
FMLRelaunchLog.log(Level.SEVERE, e, "The patch transformer failed to load! This is critical, loading cannot continue!");
throw Throwables.propagate(e);
}
loadPlugins = new ArrayList<FMLPluginWrapper>();
for (String rootPluginName : rootPlugins)
{
loadCoreMod(classLoader, rootPluginName, null);
}
if (loadPlugins.isEmpty())
@ -94,111 +119,23 @@ public class CoreModManager
throw new RuntimeException("A fatal error has occured - no valid fml load plugin was found - this is a completely corrupt FML installation.");
}
FMLRelaunchLog.fine("All core mods are successfully located");
FMLRelaunchLog.fine("All fundamental core mods are successfully located");
// Now that we have the root plugins loaded - lets see what else might be around
String commandLineCoremods = System.getProperty("fml.coreMods.load","");
for (String s : commandLineCoremods.split(","))
for (String coreModClassName : commandLineCoremods.split(","))
{
if (s.isEmpty())
if (coreModClassName.isEmpty())
{
continue;
}
FMLRelaunchLog.info("Found a command line coremod : %s", s);
try
{
classLoader.addTransformerExclusion(s);
Class<?> coreModClass = Class.forName(s, true, classLoader);
TransformerExclusions trExclusions = coreModClass.getAnnotation(IFMLLoadingPlugin.TransformerExclusions.class);
if (trExclusions!=null)
{
for (String st : trExclusions.value())
{
classLoader.addTransformerExclusion(st);
}
}
IFMLLoadingPlugin plugin = (IFMLLoadingPlugin) coreModClass.newInstance();
loadPlugins.add(plugin);
}
catch (Throwable e)
{
FMLRelaunchLog.log(Level.SEVERE,e,"Exception occured trying to load coremod %s",s);
throw new RuntimeException(e);
}
FMLRelaunchLog.info("Found a command line coremod : %s", coreModClassName);
loadCoreMod(classLoader, coreModClassName, null);
}
discoverCoreMods(mcDir, classLoader, loadPlugins);
discoverCoreMods(mcDir, classLoader);
for (IFMLLoadingPlugin plug : loadPlugins)
{
if (plug.getASMTransformerClass()!=null)
{
for (String xformClass : plug.getASMTransformerClass())
{
FMLRelaunchLog.finest("Registering transformer %s", xformClass);
classLoader.registerTransformer(xformClass);
}
}
}
// Deobfuscation transformer, always last
if (!deobfuscatedEnvironment)
{
classLoader.registerTransformer("cpw.mods.fml.common.asm.transformers.DeobfuscationTransformer");
}
FMLRelaunchLog.fine("Running coremod plugins");
Map<String,Object> data = new HashMap<String,Object>();
data.put("mcLocation", mcDir);
data.put("coremodList", loadPlugins);
data.put("runtimeDeobfuscationEnabled", !deobfuscatedEnvironment);
for (IFMLLoadingPlugin plugin : loadPlugins)
{
FMLRelaunchLog.fine("Running coremod plugin %s", plugin.getClass().getSimpleName());
data.put("coremodLocation", pluginLocations.get(plugin));
plugin.injectData(data);
String setupClass = plugin.getSetupClass();
if (setupClass != null)
{
try
{
IFMLCallHook call = (IFMLCallHook) Class.forName(setupClass, true, classLoader).newInstance();
Map<String,Object> callData = new HashMap<String, Object>();
callData.put("mcLocation", mcDir);
callData.put("classLoader", classLoader);
callData.put("coremodLocation", pluginLocations.get(plugin));
callData.put("deobfuscationFileName", FMLInjectionData.debfuscationDataName());
call.injectData(callData);
call.call();
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
FMLRelaunchLog.fine("Coremod plugin %s run successfully", plugin.getClass().getSimpleName());
String modContainer = plugin.getModContainerClass();
if (modContainer != null)
{
FMLInjectionData.containers.add(modContainer);
}
}
try
{
FMLRelaunchLog.fine("Validating minecraft");
Class<?> loaderClazz = Class.forName("cpw.mods.fml.common.Loader", true, classLoader);
Method m = loaderClazz.getMethod("injectData", Object[].class);
m.invoke(null, (Object)FMLInjectionData.data());
m = loaderClazz.getMethod("instance");
m.invoke(null);
FMLRelaunchLog.fine("Minecraft validated, launching...");
}
catch (Exception e)
{
// Load in the Loader, make sure he's ready to roll - this will initialize most of the rest of minecraft here
System.out.println("A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML");
throw new RuntimeException(e);
}
}
private static void discoverCoreMods(File mcDir, LaunchClassLoader classLoader, List<IFMLLoadingPlugin> loadPlugins)
private static void discoverCoreMods(File mcDir, LaunchClassLoader classLoader)
{
FMLRelaunchLog.fine("Discovering coremods");
File coreMods = setupCoreModDir(mcDir);
@ -241,6 +178,14 @@ public class CoreModManager
continue;
}
String cascadedTweaker = mfAttributes.getValue("TweakClass");
if (cascadedTweaker != null)
{
handleCascadingTweak(coreMod, jar, cascadedTweaker, classLoader);
loadedCoremods.add(coreMod.getName());
continue;
}
String fmlCorePlugin = mfAttributes.getValue("FMLCorePlugin");
if (fmlCorePlugin == null)
{
@ -258,59 +203,22 @@ public class CoreModManager
FMLRelaunchLog.log(Level.SEVERE, e, "Unable to convert file into a URL. weird");
continue;
}
try
{
FMLRelaunchLog.fine("Loading coremod %s", coreMod.getName());
classLoader.addTransformerExclusion(fmlCorePlugin);
Class<?> coreModClass = Class.forName(fmlCorePlugin, true, classLoader);
MCVersion requiredMCVersion = coreModClass.getAnnotation(IFMLLoadingPlugin.MCVersion.class);
String version = "";
if (requiredMCVersion == null)
{
FMLRelaunchLog.log(Level.WARNING, "The coremod %s does not have a MCVersion annotation, it may cause issues with this version of Minecraft", fmlCorePlugin);
}
else
{
version = requiredMCVersion.value();
}
if (!"".equals(version) && !FMLInjectionData.mccversion.equals(version))
{
FMLRelaunchLog.log(Level.SEVERE, "The coremod %s is requesting minecraft version %s and minecraft is %s. It will be ignored.", fmlCorePlugin, version, FMLInjectionData.mccversion);
continue;
}
else if (!"".equals(version))
{
FMLRelaunchLog.log(Level.FINE, "The coremod %s requested minecraft version %s and minecraft is %s. It will be loaded.", fmlCorePlugin, version, FMLInjectionData.mccversion);
}
TransformerExclusions trExclusions = coreModClass.getAnnotation(IFMLLoadingPlugin.TransformerExclusions.class);
if (trExclusions!=null)
{
for (String st : trExclusions.value())
{
classLoader.addTransformerExclusion(st);
}
}
IFMLLoadingPlugin plugin = (IFMLLoadingPlugin) coreModClass.newInstance();
loadPlugins.add(plugin);
pluginLocations .put(plugin, coreMod);
FMLRelaunchLog.fine("Loaded coremod %s", coreMod.getName());
}
catch (ClassNotFoundException cnfe)
{
FMLRelaunchLog.log(Level.SEVERE, cnfe, "Coremod %s: Unable to class load the plugin %s", coreMod.getName(), fmlCorePlugin);
}
catch (ClassCastException cce)
{
FMLRelaunchLog.log(Level.SEVERE, cce, "Coremod %s: The plugin %s is not an implementor of IFMLLoadingPlugin", coreMod.getName(), fmlCorePlugin);
}
catch (InstantiationException ie)
{
FMLRelaunchLog.log(Level.SEVERE, ie, "Coremod %s: The plugin class %s was not instantiable", coreMod.getName(), fmlCorePlugin);
}
catch (IllegalAccessException iae)
{
FMLRelaunchLog.log(Level.SEVERE, iae, "Coremod %s: The plugin class %s was not accessible", coreMod.getName(), fmlCorePlugin);
}
loadCoreMod(classLoader, fmlCorePlugin, coreMod);
}
}
private static void handleCascadingTweak(File coreMod, JarFile jar, String cascadedTweaker, LaunchClassLoader classLoader)
{
try
{
classLoader.addURL(coreMod.toURI().toURL());
Class<? extends ITweaker> newTweakClass = (Class<? extends ITweaker>) Class.forName(cascadedTweaker, true, classLoader);
ITweaker newTweak = newTweakClass.newInstance();
CoreModManager.tweaker.injectCascadingTweak(tweaker);
}
catch (Exception e)
{
FMLRelaunchLog.log(Level.INFO, e, "There was a problem trying to load the mod dir tweaker %s", coreMod.getAbsolutePath());
}
}
@ -344,4 +252,184 @@ public class CoreModManager
{
return loadedCoremods;
}
private static FMLPluginWrapper loadCoreMod(LaunchClassLoader classLoader, String coreModClass, File location)
{
String coreModName = coreModClass.substring(coreModClass.lastIndexOf('.')+1);
try
{
FMLRelaunchLog.fine("Instantiating coremod class %s", coreModName);
classLoader.addTransformerExclusion(coreModClass);
Class<?> coreModClazz = Class.forName(coreModClass, true, classLoader);
Name coreModNameAnn = coreModClazz.getAnnotation(IFMLLoadingPlugin.Name.class);
if (coreModNameAnn!=null && !Strings.isNullOrEmpty(coreModNameAnn.value()))
{
coreModName = coreModNameAnn.value();
FMLRelaunchLog.finest("coremod named %s is loading", coreModName);
}
MCVersion requiredMCVersion = coreModClazz.getAnnotation(IFMLLoadingPlugin.MCVersion.class);
if (!Arrays.asList(rootPlugins).contains(coreModClass) && (requiredMCVersion == null || Strings.isNullOrEmpty(requiredMCVersion.value())))
{
FMLRelaunchLog.log(Level.WARNING, "The coremod %s does not have a MCVersion annotation, it may cause issues with this version of Minecraft", coreModClass);
}
else if (requiredMCVersion!=null && !FMLInjectionData.mccversion.equals(requiredMCVersion.value()))
{
FMLRelaunchLog.log(Level.SEVERE, "The coremod %s is requesting minecraft version %s and minecraft is %s. It will be ignored.", coreModClass, requiredMCVersion.value(), FMLInjectionData.mccversion);
return null;
}
else if (requiredMCVersion!=null)
{
FMLRelaunchLog.log(Level.FINE, "The coremod %s requested minecraft version %s and minecraft is %s. It will be loaded.", coreModClass, requiredMCVersion.value(), FMLInjectionData.mccversion);
}
TransformerExclusions trExclusions = coreModClazz.getAnnotation(IFMLLoadingPlugin.TransformerExclusions.class);
if (trExclusions!=null)
{
for (String st : trExclusions.value())
{
classLoader.addTransformerExclusion(st);
}
}
DependsOn deplist = coreModClazz.getAnnotation(IFMLLoadingPlugin.DependsOn.class);
String[] dependencies = new String[0];
if (deplist != null)
{
dependencies = deplist.value();
}
IFMLLoadingPlugin plugin = (IFMLLoadingPlugin) coreModClazz.newInstance();
FMLPluginWrapper wrap = new FMLPluginWrapper(coreModName, plugin, location, dependencies);
loadPlugins.add(wrap);
FMLRelaunchLog.fine("Loaded coremod %s", coreModName);
return wrap;
}
catch (ClassNotFoundException cnfe)
{
if (!Lists.newArrayList(rootPlugins).contains(coreModClass))
FMLRelaunchLog.log(Level.SEVERE, cnfe, "Coremod %s: Unable to class load the plugin %s", coreModName, coreModClass);
else
FMLRelaunchLog.fine("Skipping root plugin %s", coreModClass);
}
catch (ClassCastException cce)
{
FMLRelaunchLog.log(Level.SEVERE, cce, "Coremod %s: The plugin %s is not an implementor of IFMLLoadingPlugin", coreModName, coreModClass);
}
catch (InstantiationException ie)
{
FMLRelaunchLog.log(Level.SEVERE, ie, "Coremod %s: The plugin class %s was not instantiable", coreModName, coreModClass);
}
catch (IllegalAccessException iae)
{
FMLRelaunchLog.log(Level.SEVERE, iae, "Coremod %s: The plugin class %s was not accessible", coreModName, coreModClass);
}
return null;
}
private static void sortCoreMods()
{
TopologicalSort.DirectedGraph<FMLPluginWrapper> sortGraph = new TopologicalSort.DirectedGraph<FMLPluginWrapper>();
Map<String, FMLPluginWrapper> pluginMap = Maps.newHashMap();
for (FMLPluginWrapper plug : loadPlugins)
{
sortGraph.addNode(plug);
pluginMap.put(plug.name, plug);
}
for (FMLPluginWrapper plug : loadPlugins)
{
for (String dep : plug.predepends)
{
if (!pluginMap.containsKey(dep))
{
FMLRelaunchLog.log(Level.SEVERE, "Missing coremod dependency - the coremod %s depends on coremod %s which isn't present.", plug.name, dep);
throw new RuntimeException();
}
sortGraph.addEdge(plug, pluginMap.get(dep));
}
}
try
{
loadPlugins = TopologicalSort.topologicalSort(sortGraph);
FMLRelaunchLog.fine("Sorted coremod list %s", loadPlugins);
}
catch (Exception e)
{
FMLLog.log(Level.SEVERE, e, "There was a problem performing the coremod sort");
throw Throwables.propagate(e);
}
}
public static void injectTransformers(LaunchClassLoader classLoader)
{
for (FMLPluginWrapper wrap : loadPlugins)
{
IFMLLoadingPlugin plug = wrap.coreModInstance;
if (plug.getASMTransformerClass()!=null)
{
for (String xformClass : plug.getASMTransformerClass())
{
FMLRelaunchLog.finest("Registering transformer %s", xformClass);
classLoader.registerTransformer(xformClass);
}
}
}
FMLRelaunchLog.fine("Running coremod plugins");
Map<String,Object> data = new HashMap<String,Object>();
data.put("mcLocation", mcDir);
data.put("coremodList", loadPlugins);
data.put("runtimeDeobfuscationEnabled", !deobfuscatedEnvironment);
for (FMLPluginWrapper pluginWrapper : loadPlugins)
{
IFMLLoadingPlugin plugin = pluginWrapper.coreModInstance;
FMLRelaunchLog.fine("Running coremod plugin %s", pluginWrapper.name);
data.put("coremodLocation", pluginWrapper.location);
plugin.injectData(data);
String setupClass = plugin.getSetupClass();
if (setupClass != null)
{
try
{
IFMLCallHook call = (IFMLCallHook) Class.forName(setupClass, true, classLoader).newInstance();
Map<String,Object> callData = new HashMap<String, Object>();
callData.put("mcLocation", mcDir);
callData.put("classLoader", classLoader);
callData.put("coremodLocation", pluginWrapper.location);
callData.put("deobfuscationFileName", FMLInjectionData.debfuscationDataName());
call.injectData(callData);
call.call();
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
FMLRelaunchLog.fine("Coremod plugin %s run successfully", plugin.getClass().getSimpleName());
String modContainer = plugin.getModContainerClass();
if (modContainer != null)
{
FMLInjectionData.containers.add(modContainer);
}
}
// Deobfuscation transformer, always last
if (!deobfuscatedEnvironment)
{
classLoader.registerTransformer("cpw.mods.fml.common.asm.transformers.DeobfuscationTransformer");
}
try
{
FMLRelaunchLog.fine("Validating minecraft");
Class<?> loaderClazz = Class.forName("cpw.mods.fml.common.Loader", true, classLoader);
Method m = loaderClazz.getMethod("injectData", Object[].class);
m.invoke(null, (Object)FMLInjectionData.data());
m = loaderClazz.getMethod("instance");
m.invoke(null);
FMLRelaunchLog.fine("Minecraft validated, launching...");
}
catch (Exception e)
{
// Load in the Loader, make sure he's ready to roll - this will initialize most of the rest of minecraft here
System.out.println("A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML");
throw new RuntimeException(e);
}
}
}

1
fml/common/cpw/mods/fml/relauncher/FMLCorePlugin.java
View File

@ -27,7 +27,6 @@ public class FMLCorePlugin implements IFMLLoadingPlugin
public String[] getASMTransformerClass()
{
return new String[] {
"cpw.mods.fml.common.asm.transformers.PatchingTransformer",
"cpw.mods.fml.common.asm.transformers.AccessTransformer",
"cpw.mods.fml.common.asm.transformers.MarkerTransformer",
"cpw.mods.fml.common.asm.transformers.SideTransformer",

13
fml/common/cpw/mods/fml/relauncher/FMLLaunchHandler.java
View File

@ -87,7 +87,7 @@ public class FMLLaunchHandler
try
{
CoreModManager.handleLaunch(minecraftHome, classLoader);
CoreModManager.handleLaunch(minecraftHome, classLoader, tweaker);
}
catch (Throwable t)
{
@ -101,4 +101,15 @@ public class FMLLaunchHandler
{
return side;
}
private void injectPostfixTransformers()
{
CoreModManager.injectTransformers(classLoader);
}
public static void appendCoreMods()
{
INSTANCE.injectPostfixTransformers();
}
}

20
fml/common/cpw/mods/fml/relauncher/IFMLLoadingPlugin.java
View File

@ -102,4 +102,24 @@ public interface IFMLLoadingPlugin
{
public String value() default "";
}
/**
* Name this coremod something other than the "short class name"
* @author cpw
*
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Name
{
public String value() default "";
}
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface DependsOn
{
public String[] value() default {};
}
}