Mixins to debug "Pose stack not empty" crashes

PoseStackDebug.patch

Index: src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/TERDispatcherMixin.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/TERDispatcherMixin.java b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/TERDispatcherMixin.java
new file mode 100644
--- /dev/null	(date 1619418433751)
+++ b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/TERDispatcherMixin.java	(date 1619418433751)
@@ -0,0 +1,30 @@
+package blusunrize.immersiveengineering.mixin.coremods.client;
+
+import blusunrize.immersiveengineering.StackDuck;
+import com.mojang.blaze3d.matrix.MatrixStack;
+import net.minecraft.client.renderer.IRenderTypeBuffer;
+import net.minecraft.client.renderer.tileentity.TileEntityRenderer;
+import net.minecraft.client.renderer.tileentity.TileEntityRendererDispatcher;
+import net.minecraft.tileentity.TileEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(TileEntityRendererDispatcher.class)
+public class TERDispatcherMixin
+{
+	@Inject(method = "render", at = @At("HEAD"))
+	private static <T extends TileEntity>
+	void preRender(TileEntityRenderer<T> rendererIn, T tileEntityIn, float partialTicks, MatrixStack matrixStackIn, IRenderTypeBuffer bufferIn, CallbackInfo ci)
+	{
+		((StackDuck)matrixStackIn).saveDepth();
+	}
+
+	@Inject(method = "render", at = @At("TAIL"))
+	private static <T extends TileEntity>
+	void postRender(TileEntityRenderer<T> rendererIn, T tileEntityIn, float partialTicks, MatrixStack matrixStackIn, IRenderTypeBuffer bufferIn, CallbackInfo ci)
+	{
+		((StackDuck)matrixStackIn).assertMatched();
+	}
+}
Index: src/main/resources/immersiveengineering.mixins.json
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/resources/immersiveengineering.mixins.json b/src/main/resources/immersiveengineering.mixins.json
--- a/src/main/resources/immersiveengineering.mixins.json	(revision e193a8caf9879afc9004005fdc909cbad6da80c6)
+++ b/src/main/resources/immersiveengineering.mixins.json	(date 1619379406296)
@@ -22,7 +22,10 @@
     "accessors.TileEntityAccess",
     "accessors.TNTEntityAccess",
     "coremods.AbstractBlockStateMixin",
-    "coremods.ServerWorldMixin"
+    "coremods.ServerWorldMixin",
+    "coremods.client.ERenderManagerMixin",
+    "coremods.client.MatrixStackHack",
+    "coremods.client.TERDispatcherMixin"
   ],
   "client": [
     "accessors.client.FontResourceManagerAccess",
Index: src/main/java/blusunrize/immersiveengineering/StackDuck.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/blusunrize/immersiveengineering/StackDuck.java b/src/main/java/blusunrize/immersiveengineering/StackDuck.java
new file mode 100644
--- /dev/null	(date 1619418433759)
+++ b/src/main/java/blusunrize/immersiveengineering/StackDuck.java	(date 1619418433759)
@@ -0,0 +1,8 @@
+package blusunrize.immersiveengineering;
+
+public interface StackDuck
+{
+	void saveDepth();
+
+	void assertMatched();
+}
Index: src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/MatrixStackHack.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/MatrixStackHack.java b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/MatrixStackHack.java
new file mode 100644
--- /dev/null	(date 1619418433767)
+++ b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/MatrixStackHack.java	(date 1619418433767)
@@ -0,0 +1,70 @@
+package blusunrize.immersiveengineering.mixin.coremods.client;
+
+import blusunrize.immersiveengineering.StackDuck;
+import blusunrize.immersiveengineering.common.util.IELogger;
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.mojang.blaze3d.matrix.MatrixStack.Entry;
+import com.mojang.datafixers.util.Pair;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.ArrayList;
+import java.util.Deque;
+import java.util.List;
+
+@Mixin(MatrixStack.class)
+public class MatrixStackHack implements StackDuck
+{
+	@Shadow
+	@Final
+	private Deque<Entry> stack;
+	private final List<Pair<String, StackTraceElement[]>> opsSinceLastEmpty = new ArrayList<>();
+
+	@Inject(method = "push", at = @At("HEAD"))
+	public void pushHead(CallbackInfo ci)
+	{
+		opsSinceLastEmpty.add(Pair.of("push", Thread.currentThread().getStackTrace()));
+	}
+
+	@Inject(method = "pop", at = @At("TAIL"))
+	public void popHead(CallbackInfo ci)
+	{
+		if(stack.isEmpty())
+		{
+			opsSinceLastEmpty.clear();
+		}
+		else
+		{
+			opsSinceLastEmpty.add(Pair.of("pop", Thread.currentThread().getStackTrace()));
+		}
+	}
+
+	private int lastDepth = -1;
+
+	@Override
+	public void saveDepth()
+	{
+		lastDepth = stack.size();
+	}
+
+	@Override
+	public void assertMatched()
+	{
+		if(stack.size()!=lastDepth)
+		{
+			for(Pair<String, StackTraceElement[]> entry : opsSinceLastEmpty)
+			{
+				IELogger.logger.info("OP "+entry.getFirst());
+				for(StackTraceElement e : entry.getSecond())
+				{
+					IELogger.logger.info("  at "+e.toString());
+				}
+			}
+			throw new RuntimeException();
+		}
+	}
+}
Index: src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/ERenderManagerMixin.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/ERenderManagerMixin.java b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/ERenderManagerMixin.java
new file mode 100644
--- /dev/null	(date 1619418433739)
+++ b/src/main/java/blusunrize/immersiveengineering/mixin/coremods/client/ERenderManagerMixin.java	(date 1619418433739)
@@ -0,0 +1,29 @@
+package blusunrize.immersiveengineering.mixin.coremods.client;
+
+import blusunrize.immersiveengineering.StackDuck;
+import com.mojang.blaze3d.matrix.MatrixStack;
+import net.minecraft.client.renderer.IRenderTypeBuffer;
+import net.minecraft.client.renderer.entity.EntityRendererManager;
+import net.minecraft.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(EntityRendererManager.class)
+public class ERenderManagerMixin
+{
+	@Inject(method = "renderEntityStatic", at = @At("HEAD"))
+	private <E extends Entity>
+	void preRender(E entityIn, double xIn, double yIn, double zIn, float rotationYawIn, float partialTicks, MatrixStack matrixStackIn, IRenderTypeBuffer bufferIn, int packedLightIn, CallbackInfo ci)
+	{
+		((StackDuck)matrixStackIn).saveDepth();
+	}
+
+	@Inject(method = "renderEntityStatic", at = @At("TAIL"))
+	private <E extends Entity>
+	void postRender(E entityIn, double xIn, double yIn, double zIn, float rotationYawIn, float partialTicks, MatrixStack matrixStackIn, IRenderTypeBuffer bufferIn, int packedLightIn, CallbackInfo ci)
+	{
+		((StackDuck)matrixStackIn).assertMatched();
+	}
+}