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Optimize NavigationListener Iteration
I don't know what the person who wrote that code was smoking, but I don't think it was good. Gets rid of the WeakHashMap that mojang was abusing purely to be lazy on clean up, and handles registering and deregistering navigation upon world add/remove operations.
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Aikar
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b65586112b
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627ccd793f
2 changed files with 173 additions and 0 deletions
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 7 Mar 2016 22:43:26 -0500
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Subject: [PATCH] Optimize NavigationListener Iteration
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I don't know what the person who wrote that code was smoking, but I
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don't think it was good.
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Gets rid of the WeakHashMap that mojang was abusing purely to be lazy
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on clean up, and handles registering and deregistering navigation
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upon world add/remove operations.
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diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/NavigationAbstract.java
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+++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
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@@ -0,0 +0,0 @@ public abstract class NavigationAbstract {
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this.b = world;
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this.g = entityinsentient.getAttributeInstance(GenericAttributes.FOLLOW_RANGE);
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this.s = this.a();
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- this.b.C().a(this);
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+ //this.b.C().a(this); // Paper
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}
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protected abstract Pathfinder a();
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diff --git a/src/main/java/net/minecraft/server/NavigationListener.java b/src/main/java/net/minecraft/server/NavigationListener.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/NavigationListener.java
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+++ b/src/main/java/net/minecraft/server/NavigationListener.java
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@@ -0,0 +0,0 @@
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package net.minecraft.server;
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+import java.util.ArrayList; // Paper
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+import java.util.List; // Paper
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import java.util.WeakHashMap;
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public class NavigationListener implements IWorldAccess {
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private static final Object a = new Object();
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- private final WeakHashMap<NavigationAbstract, Object> b = new WeakHashMap();
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+ private final List<NavigationAbstract> navigators = new ArrayList<>(); // Paper
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public NavigationListener() {}
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+
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public void a(NavigationAbstract navigationabstract) {
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- this.b.put(navigationabstract, NavigationListener.a);
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+ this.add(navigationabstract); // Paper
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}
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+ // Paper start
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+ public void add(NavigationAbstract navigationabstract) {
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+ this.navigators.add(navigationabstract);
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+ }
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+ public void remove(NavigationAbstract navigationabstract) {
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+ this.navigators.remove(navigationabstract);
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+ }
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+ // Paper end
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+
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public void a(World world, BlockPosition blockposition, IBlockData iblockdata, IBlockData iblockdata1, int i) {
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if (this.a(world, blockposition, iblockdata, iblockdata1)) {
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- NavigationAbstract[] anavigationabstract = (NavigationAbstract[]) this.b.keySet().toArray(new NavigationAbstract[0]);
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- NavigationAbstract[] anavigationabstract1 = anavigationabstract;
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- int j = anavigationabstract.length;
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+ // Paper start
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+ //NavigationAbstract[] anavigationabstract = (NavigationAbstract[]) this.navigators.keySet().toArray(new NavigationAbstract[0]);
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+ //NavigationAbstract[] anavigationabstract1 = anavigationabstract;
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+ int j = this.navigators.size();
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+
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for (int k = 0; k < j; ++k) {
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- NavigationAbstract navigationabstract = anavigationabstract1[k];
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+ NavigationAbstract navigationabstract = this.navigators.get(k);
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+ // Paper end
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if (navigationabstract != null && !navigationabstract.i()) {
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PathEntity pathentity = navigationabstract.k();
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
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this.getChunkAt(i, j).a(entity);
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this.entityList.add(entity);
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this.b(entity);
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+ if (entity instanceof EntityInsentient) { this.getNavListener().add(((EntityInsentient) entity).navigation); } // Paper
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return true;
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}
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}
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@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
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}
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// CraftBukkit end
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} // Spigot
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+ if (entity instanceof EntityInsentient) { this.getNavListener().remove(((EntityInsentient) entity).navigation); } // Paper
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this.c(entity);
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}
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--
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@ -3609,6 +3609,81 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
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+ return this.b.getType(blockposition.down()).b();
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/NavigationListener.java b/src/main/java/net/minecraft/server/NavigationListener.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/NavigationListener.java
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@@ -0,0 +0,0 @@
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+package net.minecraft.server;
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+
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+import java.util.WeakHashMap;
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+
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+public class NavigationListener implements IWorldAccess {
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+
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+ private static final Object a = new Object();
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+ private final WeakHashMap<NavigationAbstract, Object> b = new WeakHashMap();
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+
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+ public NavigationListener() {}
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+
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+ public void a(NavigationAbstract navigationabstract) {
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+ this.b.put(navigationabstract, NavigationListener.a);
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+ }
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+
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+ public void a(World world, BlockPosition blockposition, IBlockData iblockdata, IBlockData iblockdata1, int i) {
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+ if (this.a(world, blockposition, iblockdata, iblockdata1)) {
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+ NavigationAbstract[] anavigationabstract = (NavigationAbstract[]) this.b.keySet().toArray(new NavigationAbstract[0]);
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+ NavigationAbstract[] anavigationabstract1 = anavigationabstract;
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+ int j = anavigationabstract.length;
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+
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+ for (int k = 0; k < j; ++k) {
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+ NavigationAbstract navigationabstract = anavigationabstract1[k];
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+
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+ if (navigationabstract != null && !navigationabstract.i()) {
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+ PathEntity pathentity = navigationabstract.k();
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+
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+ if (pathentity != null && !pathentity.b() && pathentity.d() != 0) {
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+ PathPoint pathpoint = navigationabstract.c.c();
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+ double d0 = blockposition.distanceSquared(((double) pathpoint.a + navigationabstract.a.locX) / 2.0D, ((double) pathpoint.b + navigationabstract.a.locY) / 2.0D, ((double) pathpoint.c + navigationabstract.a.locZ) / 2.0D);
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+ int l = (pathentity.d() - pathentity.e()) * (pathentity.d() - pathentity.e());
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+
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+ if (d0 < (double) l) {
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+ navigationabstract.j();
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+ }
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+ }
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+ }
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+ }
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+
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+ }
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+ }
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+
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+ protected boolean a(World world, BlockPosition blockposition, IBlockData iblockdata, IBlockData iblockdata1) {
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+ AxisAlignedBB axisalignedbb = iblockdata.d(world, blockposition);
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+ AxisAlignedBB axisalignedbb1 = iblockdata1.d(world, blockposition);
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+
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+ return axisalignedbb != axisalignedbb1 && (axisalignedbb == null || !axisalignedbb.equals(axisalignedbb1));
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+ }
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+
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+ public void a(BlockPosition blockposition) {}
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+
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+ public void a(int i, int j, int k, int l, int i1, int j1) {}
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+
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+ public void a(EntityHuman entityhuman, SoundEffect soundeffect, SoundCategory soundcategory, double d0, double d1, double d2, float f, float f1) {}
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+
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+ public void a(int i, boolean flag, double d0, double d1, double d2, double d3, double d4, double d5, int... aint) {}
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+
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+ public void a(Entity entity) {}
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+
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+ public void b(Entity entity) {}
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+
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+ public void a(SoundEffect soundeffect, BlockPosition blockposition) {}
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+
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+ public void a(int i, BlockPosition blockposition, int j) {}
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+
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+ public void a(EntityHuman entityhuman, int i, BlockPosition blockposition, int j) {}
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+
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+ public void b(int i, BlockPosition blockposition, int j) {}
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+}
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diff --git a/src/main/java/net/minecraft/server/PathfinderGoalFloat.java b/src/main/java/net/minecraft/server/PathfinderGoalFloat.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
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