1 files changed, 78 insertions, 0 deletions
diff --git a/src/core/lombok/bytecode/PreventNullAnalysisRemover.java b/src/core/lombok/bytecode/PreventNullAnalysisRemover.java
new file mode 100644
index 00000000..4dc08bb4
--- /dev/null
+++ b/src/core/lombok/bytecode/PreventNullAnalysisRemover.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.bytecode;
+
+import static lombok.bytecode.PostCompilationUtil.fixJSRInlining;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import lombok.core.DiagnosticsReceiver;
+import lombok.core.PostCompilerTransformation;
+
+import org.mangosdk.spi.ProviderFor;
+import org.objectweb.asm.ClassAdapter;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.MethodAdapter;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+@ProviderFor(PostCompilerTransformation.class)
+public class PreventNullAnalysisRemover implements PostCompilerTransformation {
+	
+	@Override public byte[] applyTransformations(byte[] original, String fileName, DiagnosticsReceiver diagnostics) {
+		if (!new ClassFileMetaData(original).usesMethod("lombok/Lombok", "preventNullAnalysis")) return null;
+		
+		byte[] fixedByteCode = fixJSRInlining(original);
+		
+		ClassReader reader = new ClassReader(fixedByteCode);
+		ClassWriter writer = new FixedClassWriter(reader, ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
+		
+		final AtomicBoolean changesMade = new AtomicBoolean();
+		
+		class PreventNullanalysisVisitor extends MethodAdapter {
+			PreventNullanalysisVisitor(MethodVisitor mv) {
+				super(mv);
+			}
+			
+			@Override public void visitMethodInsn(int opcode, String owner, String name, String desc) {
+				boolean hit = true;
+				if (hit && opcode != Opcodes.INVOKESTATIC) hit = false;
+				if (hit && !"preventNullAnalysis".equals(name)) hit = false;
+				if (hit && !"lombok/Lombok".equals(owner)) hit = false;
+				if (hit && !"(Ljava/lang/Object;)Ljava/lang/Object;".equals(desc)) hit = false;
+				if (hit) {
+					changesMade.set(true);
+				} else {
+					super.visitMethodInsn(opcode, owner, name, desc);
+				}
+			}
+		}
+		
+		reader.accept(new ClassAdapter(writer) {
+			@Override public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
+				return new PreventNullanalysisVisitor(super.visitMethod(access, name, desc, signature, exceptions));
+			}
+		}, 0);
+		return changesMade.get() ? writer.toByteArray() : null;
+	}
+}