Java tutorial
package com.weibo.lodil.mmap.impl; /* * Copyright 2011 Peter Lawrey * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import static org.objectweb.asm.Opcodes.ACC_BRIDGE; import static org.objectweb.asm.Opcodes.ACC_FINAL; import static org.objectweb.asm.Opcodes.ACC_PRIVATE; import static org.objectweb.asm.Opcodes.ACC_PROTECTED; import static org.objectweb.asm.Opcodes.ACC_PUBLIC; import static org.objectweb.asm.Opcodes.ACC_SUPER; import static org.objectweb.asm.Opcodes.ACC_SYNTHETIC; import static org.objectweb.asm.Opcodes.ACONST_NULL; import static org.objectweb.asm.Opcodes.ALOAD; import static org.objectweb.asm.Opcodes.ARETURN; import static org.objectweb.asm.Opcodes.ASTORE; import static org.objectweb.asm.Opcodes.ATHROW; import static org.objectweb.asm.Opcodes.BIPUSH; import static org.objectweb.asm.Opcodes.CHECKCAST; import static org.objectweb.asm.Opcodes.DLOAD; import static org.objectweb.asm.Opcodes.DRETURN; import static org.objectweb.asm.Opcodes.DSTORE; import static org.objectweb.asm.Opcodes.DUP; import static org.objectweb.asm.Opcodes.FLOAD; import static org.objectweb.asm.Opcodes.FRETURN; import static org.objectweb.asm.Opcodes.FSTORE; import static org.objectweb.asm.Opcodes.GETFIELD; import static org.objectweb.asm.Opcodes.GETSTATIC; import static org.objectweb.asm.Opcodes.GOTO; import static org.objectweb.asm.Opcodes.IADD; import static org.objectweb.asm.Opcodes.ICONST_0; import static org.objectweb.asm.Opcodes.ICONST_1; import static org.objectweb.asm.Opcodes.IFEQ; import static org.objectweb.asm.Opcodes.IFNULL; import static org.objectweb.asm.Opcodes.IF_ACMPEQ; import static org.objectweb.asm.Opcodes.IF_ACMPNE; import static org.objectweb.asm.Opcodes.IF_ICMPEQ; import static org.objectweb.asm.Opcodes.ILOAD; import static org.objectweb.asm.Opcodes.IMUL; import static org.objectweb.asm.Opcodes.INSTANCEOF; import static org.objectweb.asm.Opcodes.INVOKEINTERFACE; import static org.objectweb.asm.Opcodes.INVOKESPECIAL; import static org.objectweb.asm.Opcodes.INVOKESTATIC; import static org.objectweb.asm.Opcodes.INVOKEVIRTUAL; import static org.objectweb.asm.Opcodes.IRETURN; import static org.objectweb.asm.Opcodes.ISTORE; import static org.objectweb.asm.Opcodes.LCONST_0; import static org.objectweb.asm.Opcodes.LLOAD; import static org.objectweb.asm.Opcodes.LRETURN; import static org.objectweb.asm.Opcodes.LSTORE; import static org.objectweb.asm.Opcodes.NEW; import static org.objectweb.asm.Opcodes.POP; import static org.objectweb.asm.Opcodes.PUTFIELD; import static org.objectweb.asm.Opcodes.RETURN; import static org.objectweb.asm.Opcodes.V1_5; import java.nio.Buffer; import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.List; import org.objectweb.asm.ClassWriter; import org.objectweb.asm.FieldVisitor; import org.objectweb.asm.Label; import org.objectweb.asm.MethodVisitor; import org.objectweb.asm.Type; import sun.misc.Cleaner; import sun.nio.ch.DirectBuffer; import com.weibo.lodil.mmap.model.BCType; import com.weibo.lodil.mmap.model.Enum8FieldModel; import com.weibo.lodil.mmap.model.Enumerated16FieldModel; import com.weibo.lodil.mmap.model.FieldModel; import com.weibo.lodil.mmap.model.ObjectFieldModel; import com.weibo.lodil.mmap.model.TypeModel; @SuppressWarnings({ "rawtypes", "unused" }) public enum GenerateHugeArrays { // enum end with ; and then start methods ; private static final String collections = "com/weibo/lodil/mmap/"; public static byte[] dumpArrayList(final TypeModel tm) { final ClassWriter cw = new ClassWriter(0); FieldVisitor fv; MethodVisitor mv; final Class interfaceClass = tm.type(); final String name = interfaceClass.getName().replace('.', '/'); cw.visit( V1_5, ACC_PUBLIC + ACC_SUPER, name + "ArrayList", "L" + collections + "impl/AbstractHugeArrayList<L" + name + ";L" + name + "Allocation;L" + name + "Element;>;", collections + "impl/AbstractHugeArrayList", null); cw.visitSource(tm.type().getSimpleName() + "ArrayList.java", null); for (final FieldModel fm : tm.fields()) { if (fm instanceof Enum8FieldModel) { fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel", "L" + collections + "model/Enum8FieldModel;", "L" + collections + "model/Enum8FieldModel<Ljava/lang/annotation/ElementType;>;", null); fv.visitEnd(); } else if (fm instanceof Enumerated16FieldModel) { fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel", "L" + collections + "model/Enumerated16FieldModel;", "L" + collections + "model/Enumerated16FieldModel<Ljava/lang/String;>;", null); fv.visitEnd(); } } final List<FieldModel> fields = new ArrayList<FieldModel>(); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(L" + collections + "HugeArrayBuilder;)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(35, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKESPECIAL, collections + "impl/AbstractHugeArrayList", "<init>", "(L" + collections + "HugeArrayBuilder;)V"); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(29, l1); for (final FieldModel fm : tm.fields()) { if (fm instanceof Enum8FieldModel) { mv.visitVarInsn(ALOAD, 0); mv.visitTypeInsn(NEW, fm.bcModelType()); mv.visitInsn(DUP); mv.visitLdcInsn(fm.fieldName()); mv.visitIntInsn(BIPUSH, fm.fieldNumber()); mv.visitLdcInsn(Type.getType(fm.bcLFieldType())); mv.visitMethodInsn(INVOKESTATIC, fm.bcFieldType(), "values", "()[" + fm.bcLFieldType()); mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>", "(Ljava/lang/String;ILjava/lang/Class;[Ljava/lang/Enum;)V"); mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory", "()Ljava/lang/String;"); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V"); fields.add(fm); } else if (fm instanceof Enumerated16FieldModel) { mv.visitVarInsn(ALOAD, 0); mv.visitTypeInsn(NEW, fm.bcModelType()); mv.visitInsn(DUP); mv.visitLdcInsn(fm.fieldName()); mv.visitIntInsn(BIPUSH, fm.fieldNumber()); mv.visitLdcInsn(Type.getType(fm.bcLFieldType())); mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>", "(Ljava/lang/String;ILjava/lang/Class;)V"); mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory", "()Ljava/lang/String;"); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V"); fields.add(fm); } } mv.visitInsn(RETURN); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0); mv.visitLocalVariable("hab", "L" + collections + "HugeArrayBuilder;", null, l0, l4, 1); mv.visitMaxs(7, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "createAllocation", "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(43, l0); mv.visitTypeInsn(NEW, name + "Allocation"); mv.visitInsn(DUP); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", "allocationSize", "I"); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKESPECIAL, name + "Allocation", "<init>", "(IL" + collections + "impl/MappedFileChannel;)V"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitLocalVariable("mfc", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1); mv.visitMaxs(4, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "createElement", "(J)L" + name + "Element;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(48, l0); mv.visitTypeInsn(NEW, name + "Element"); mv.visitInsn(DUP); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(LLOAD, 1); mv.visitMethodInsn(INVOKESPECIAL, name + "Element", "<init>", "(L" + collections + "impl/AbstractHugeArrayList;J)V"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitLocalVariable("n", "J", null, l0, l1, 1); mv.visitMaxs(5, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "createImpl", "()L" + name + ";", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(53, l0); mv.visitTypeInsn(NEW, name + "Impl"); mv.visitInsn(DUP); mv.visitMethodInsn(INVOKESPECIAL, name + "Impl", "<init>", "()V"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitMaxs(2, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "compactStart", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(57, l0); for (final FieldModel fm : fields) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactStart", "()V"); } final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(58, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "compactOnAllocation", "(L" + name + "Allocation;J)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(65, l0); for (final FieldModel fm : fields) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitVarInsn(ALOAD, 1); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_string", fm.bcLStoreType()); mv.visitVarInsn(LLOAD, 2); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactScan", "(" + fm.bcLStoreType() + "J)V"); } final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(66, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0); mv.visitLocalVariable("allocation", "L" + name + "Allocation;", null, l0, l2, 1); mv.visitLocalVariable("thisSize", "J", null, l0, l2, 2); mv.visitMaxs(4, 4); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "compactEnd", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(69, l0); for (final FieldModel fm : fields) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactEnd", "()V"); } final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(70, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(74, l0); for (final FieldModel fm : fields) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "clear", "()V"); } final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(77, l3); mv.visitInsn(RETURN); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createImpl", "()Ljava/lang/Object;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(29, l0); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createImpl", "()L" + name + ";"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createElement", "(J)L" + collections + "impl/AbstractHugeElement;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(29, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(LLOAD, 1); mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createElement", "(J)L" + name + "Element;"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitLocalVariable("x0", "J", null, l0, l1, 1); mv.visitMaxs(3, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "compactOnAllocation", "(L" + collections + "api/HugeAllocation;J)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(29, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitTypeInsn(CHECKCAST, name + "Allocation"); mv.visitVarInsn(LLOAD, 2); mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "compactOnAllocation", "(L" + name + "Allocation;J)V"); mv.visitInsn(RETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitLocalVariable("x0", "L" + collections + "api/HugeAllocation;", null, l0, l1, 1); mv.visitLocalVariable("x1", "J", null, l0, l1, 2); mv.visitMaxs(4, 4); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createAllocation", "(L" + collections + "impl/MappedFileChannel;)L" + collections + "api/HugeAllocation;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(29, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createAllocation", "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0); mv.visitLocalVariable("x0", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1); mv.visitMaxs(2, 2); mv.visitEnd(); } cw.visitEnd(); final byte[] bytes = cw.toByteArray(); // ClassReader cr = new ClassReader(bytes); // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0); return bytes; } public static byte[] dumpAllocation(final TypeModel tm) { final ClassWriter cw = new ClassWriter(0); FieldVisitor fv; MethodVisitor mv; final Class interfaceClass = tm.type(); final String name = interfaceClass.getName().replace('.', '/'); cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name + "Allocation", null, "java/lang/Object", new String[] { collections + "api/HugeAllocation" }); cw.visitSource(tm.type().getSimpleName() + "Allocation.java", null); for (final FieldModel fm : tm.fields()) { fv = cw.visitField(0, "m_" + fm.fieldName(), fm.bcLStoreType(), null, null); fv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(IL" + collections + "impl/MappedFileChannel;)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(46, l0); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); for (final FieldModel fm : tm.fields()) { mv.visitVarInsn(ALOAD, 0); if (fm instanceof ObjectFieldModel) { mv.visitLdcInsn(Type.getType(fm.bcLFieldType())); mv.visitVarInsn(ILOAD, 1); mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "newArrayOfField", "(Ljava/lang/Class;I)[Ljava/lang/Object;"); mv.visitTypeInsn(CHECKCAST, fm.bcLStoreType()); } else { mv.visitVarInsn(ILOAD, 1); mv.visitVarInsn(ALOAD, 2); mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "newArrayOfField", "(IL" + collections + "impl/MappedFileChannel;)" + fm.bcLStoreType()); } mv.visitFieldInsn(PUTFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); } mv.visitInsn(RETURN); final Label l14 = new Label(); mv.visitLabel(l14); mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l14, 0); mv.visitLocalVariable("allocationSize", "I", null, l0, l14, 1); mv.visitLocalVariable("mfc", "L" + collections + "impl/MappedFileChannel;", null, l0, l14, 2); mv.visitMaxs(3, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(62, l0); for (final FieldModel fm : tm.fields()) { if (fm instanceof ObjectFieldModel) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitInsn(ACONST_NULL); mv.visitMethodInsn(INVOKESTATIC, "java/util/Arrays", "fill", "([Ljava/lang/Object;Ljava/lang/Object;)V"); } } final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(63, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l2, 0); mv.visitMaxs(2, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "destroy", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(66, l0); for (final FieldModel fm : tm.fields()) { if (!fm.isBufferStore()) { continue; } mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitTypeInsn(CHECKCAST, "java/nio/Buffer"); mv.visitMethodInsn(INVOKESTATIC, GenerateHugeArrays.class.getName().replace('.', '/'), "clean", "(Ljava/nio/Buffer;)V"); } final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(69, l3); mv.visitInsn(RETURN); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l4, 0); mv.visitLocalVariable("m", "Ljava/lang/Object;", null, l3, l4, 1); mv.visitMaxs(1, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "finalize", "()V", null, new String[] { "java/lang/Throwable" }); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(76, l0); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "finalize", "()V"); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(77, l1); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name + "Allocation", "destroy", "()V"); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLineNumber(78, l2); mv.visitInsn(RETURN); final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l3, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } cw.visitEnd(); final byte[] bytes = cw.toByteArray(); // ClassReader cr = new ClassReader(bytes); // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0); return bytes; } public static byte[] dumpElement(final TypeModel tm) { final ClassWriter cw = new ClassWriter(0); FieldVisitor fv; MethodVisitor mv; final String name = tm.bcType(); cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name + "Element", "L" + collections + "impl/AbstractHugeElement<L" + name + "Allocation;>;L" + name + ";Ljava/io/Externalizable;", collections + "impl/AbstractHugeElement", new String[] { name, "java/io/Externalizable" }); cw.visitSource(tm.type().getSimpleName() + "Element.java", null); { fv = cw.visitField(0, "allocation", "L" + name + "Allocation;", null, null); fv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(L" + collections + "impl/AbstractHugeArrayList;J)V", "(L" + collections + "impl/AbstractHugeArrayList<L" + name + ";L" + name + "Allocation;L" + name + "Element;>;J)V", null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(34, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitVarInsn(LLOAD, 2); mv.visitMethodInsn(INVOKESPECIAL, collections + "impl/AbstractHugeElement", "<init>", "(L" + collections + "impl/AbstractHugeContainer;J)V"); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(35, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "Element;", null, l0, l2, 0); mv.visitLocalVariable("list", "L" + collections + "impl/AbstractHugeArrayList;", "L" + collections + "impl/AbstractHugeArrayList<L" + name + ";L" + name + "Allocation;L" + name + "Element;>;", l0, l2, 1); mv.visitLocalVariable("n", "J", null, l0, l2, 2); mv.visitMaxs(4, 4); mv.visitEnd(); } for (final FieldModel fm : tm.fields()) { // /////// SETTER ////////// int maxLocals = 2 + fm.bcFieldSize(); mv = cw.visitMethod(ACC_PUBLIC, "set" + fm.titleFieldName(), "(" + fm.bcLFieldType() + ")V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(39, l0); int invoke = INVOKESTATIC; if (fm.virtualGetSet()) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "container", "L" + collections + "impl/AbstractHugeContainer;"); mv.visitTypeInsn(CHECKCAST, name + "ArrayList"); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); invoke = INVOKEVIRTUAL; maxLocals++; } mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "allocation", "L" + name + "Allocation;"); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "offset", "I"); mv.visitVarInsn(loadFor(fm.bcType()), 1); mv.visitMethodInsn(invoke, fm.bcModelType(), "set", "(" + fm.bcLStoreType() + "I" + fm.bcLSetType() + ")V"); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "Element;", null, l0, l2, 0); mv.visitLocalVariable("elementType", "Ljava/lang/annotation/ElementType;", null, l0, l2, 1); mv.visitMaxs(maxLocals, 1 + fm.bcFieldSize()); mv.visitEnd(); // /////// GETTER ////////// mv = cw.visitMethod(ACC_PUBLIC, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType(), null, null); mv.visitCode(); final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(144, l3); BCType bcType = fm.bcType(); if (fm.virtualGetSet()) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "container", "L" + collections + "impl/AbstractHugeContainer;"); mv.visitTypeInsn(CHECKCAST, name + "ArrayList"); mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType()); bcType = BCType.Reference; } mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "allocation", "L" + name + "Allocation;"); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "offset", "I"); mv.visitMethodInsn(invoke, fm.bcModelType(), "get", "(" + fm.bcLStoreType() + "I)" + fm.bcLSetType()); if (!fm.bcLSetType().equals(fm.bcLFieldType())) { mv.visitTypeInsn(CHECKCAST, fm.bcFieldType()); } mv.visitInsn(returnFor(bcType)); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "L" + name + "Element;", null, l3, l4, 0); mv.visitMaxs(4, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PROTECTED, "updateAllocation0", "(I)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(170, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "container", "L" + collections + "impl/AbstractHugeContainer;"); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Element", "index", "J"); mv.visitMethodInsn(INVOKEVIRTUAL, collections + "impl/AbstractHugeContainer", "getAllocation", "(J)L" + collections + "api/HugeAllocation;"); mv.visitTypeInsn(CHECKCAST, name + "Allocation"); mv.visitFieldInsn(PUTFIELD, name + "Element", "allocation", "L" + name + "Allocation;"); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(171, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "Element;", null, l0, l2, 0); mv.visitLocalVariable("allocationSize", "I", null, l0, l2, 1); mv.visitMaxs(4, 2); mv.visitEnd(); } appendToStringHashCodeEqualsCopyOf(tm, cw, name + "Element", true); cw.visitEnd(); final byte[] bytes = cw.toByteArray(); // ClassReader cr = new ClassReader(bytes); // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0); return bytes; } private static void appendToStringHashCodeEqualsCopyOf(final TypeModel tm, final ClassWriter cw, final String name2, final boolean hasListField) { final String name = tm.bcType(); MethodVisitor mv; { mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(176, l0); mv.visitTypeInsn(NEW, "java/lang/StringBuilder"); mv.visitInsn(DUP); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V"); mv.visitLdcInsn(tm.type().getSimpleName() + "{"); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;"); String sep = ""; for (final FieldModel fm : tm.fields()) { final boolean text = CharSequence.class.isAssignableFrom(tm.type()); mv.visitLdcInsn(sep + fm.fieldName() + "=" + (text ? "'" : "")); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;"); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); String appendType = "Ljava/lang/Object;"; final Class fmType = fm.type(); if (fmType.isPrimitive()) { if ((fmType == byte.class) || (fmType == short.class)) { appendType = "I"; } else { appendType = fm.bcLFieldType(); } } mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(" + appendType + ")Ljava/lang/StringBuilder;"); sep = text ? "', " : ", "; } if (sep.startsWith("'")) { mv.visitIntInsn(BIPUSH, 39); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;"); } mv.visitIntInsn(BIPUSH, 125); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;"); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l1, 0); mv.visitMaxs(3, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "equals", "(Ljava/lang/Object;)Z", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(194, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); final Label l1 = new Label(); mv.visitJumpInsn(IF_ACMPNE, l1); mv.visitInsn(ICONST_1); mv.visitInsn(IRETURN); mv.visitLabel(l1); mv.visitLineNumber(195, l1); mv.visitVarInsn(ALOAD, 1); final Label l2 = new Label(); mv.visitJumpInsn(IFNULL, l2); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;"); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;"); final Label l3 = new Label(); mv.visitJumpInsn(IF_ACMPEQ, l3); mv.visitLabel(l2); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(l3); mv.visitLineNumber(197, l3); mv.visitVarInsn(ALOAD, 1); mv.visitTypeInsn(CHECKCAST, name2); mv.visitVarInsn(ASTORE, 2); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLineNumber(199, l4); final FieldModel[] fieldModels = tm.fields().clone(); Arrays.sort(fieldModels, new Comparator<FieldModel>() { // reverse sort the preferences to optimise the public int compare(final FieldModel o1, final FieldModel o2) { return o2.equalsPreference() - o1.equalsPreference(); } }); for (final FieldModel fm : fieldModels) { // System.out.println(fm.fieldName()); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); mv.visitVarInsn(ALOAD, 2); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); final Label l5 = new Label(); if (fm.isCallsNotEquals()) { mv.visitMethodInsn(INVOKESTATIC, fm.bcLModelType(), "notEquals", "(" + fm.bcLSetType() + fm.bcLSetType() + ")Z"); mv.visitJumpInsn(IFEQ, l5); } else { mv.visitJumpInsn(IF_ICMPEQ, l5); } mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(l5); } mv.visitInsn(ICONST_1); mv.visitInsn(IRETURN); final Label l17 = new Label(); mv.visitLabel(l17); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l17, 0); mv.visitLocalVariable("o", "Ljava/lang/Object;", null, l0, l17, 1); mv.visitLocalVariable("that", "L" + name2 + ";", null, l4, l17, 2); mv.visitMaxs(4, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "hashCode", "()I", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); int count = 0; for (final FieldModel fm : tm.fields()) { // if (count > 5) break; // System.out.println(fm.fieldName()); if (count > 0) { mv.visitIntInsn(BIPUSH, 31); mv.visitInsn(IMUL); } mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); if (fm.isCallsHashCode()) { mv.visitMethodInsn(INVOKESTATIC, fm.bcLModelType(), "hashCode", "(" + fm.bcLSetType() + ")I"); } if (count > 0) { mv.visitInsn(IADD); } count++; } mv.visitInsn(IRETURN); final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l3, 0); mv.visitMaxs(6, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "copyOf", "(L" + name + ";)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(240, l0); boolean copySimpleValues = false; for (final FieldModel fm : tm.fields()) { if (!fm.copySimpleValue() || !hasListField) { // if (true) { mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEINTERFACE, name, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(), "(" + fm.bcLFieldType() + ")V"); } else { copySimpleValues = true; } } final Label l4 = new Label(); final Label l6 = new Label(); if (copySimpleValues) { final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(243, l3); mv.visitVarInsn(ALOAD, 1); mv.visitTypeInsn(INSTANCEOF, name2); mv.visitJumpInsn(IFEQ, l4); final Label l5 = new Label(); mv.visitLabel(l5); mv.visitLineNumber(238, l5); mv.visitVarInsn(ALOAD, 1); mv.visitTypeInsn(CHECKCAST, name2); mv.visitVarInsn(ASTORE, 2); mv.visitLabel(l6); mv.visitLineNumber(239, l6); mv.visitVarInsn(ALOAD, 2); mv.visitFieldInsn(GETFIELD, name2, "container", "L" + collections + "impl/AbstractHugeContainer;"); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name2, "container", "L" + collections + "impl/AbstractHugeContainer;"); mv.visitJumpInsn(IF_ACMPNE, l4); for (final FieldModel fm : tm.fields()) { if (fm.copySimpleValue()) { mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name2, "allocation", "L" + name + "Allocation;"); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name2, "offset", "I"); mv.visitVarInsn(ALOAD, 2); mv.visitFieldInsn(GETFIELD, name2, "allocation", "L" + name + "Allocation;"); mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType()); mv.visitVarInsn(ALOAD, 2); mv.visitFieldInsn(GETFIELD, name2, "offset", "I"); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcStoreType(), "get", "(I)" + fm.bcLStoredType()); mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcStoreType(), "put", "(I" + fm.bcLStoredType() + ")" + fm.bcLStoreType()); mv.visitInsn(POP); } } } final Label l16 = new Label(); mv.visitLabel(l16); mv.visitLineNumber(238, l16); final Label l17 = new Label(); mv.visitJumpInsn(GOTO, l17); mv.visitLabel(l4); mv.visitLineNumber(241, l4); for (final FieldModel fm : tm.fields()) { if (fm.copySimpleValue()) { mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitMethodInsn(INVOKEINTERFACE, name, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(), "(" + fm.bcLFieldType() + ")V"); } } mv.visitLabel(l17); mv.visitLineNumber(251, l17); mv.visitInsn(RETURN); final Label l27 = new Label(); mv.visitLabel(l27); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l27, 0); mv.visitLocalVariable("t", "L" + name + ";", null, l0, l27, 1); if (copySimpleValues) { mv.visitLocalVariable("mte", "L" + name + "Element;", null, l6, l4, 2); } mv.visitMaxs(4, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "copyOf", "(Ljava/lang/Object;)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(275, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitTypeInsn(CHECKCAST, name); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "copyOf", "(L" + name + ";)V"); mv.visitInsn(RETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l1, 0); mv.visitLocalVariable("x0", "Ljava/lang/Object;", null, l0, l1, 1); mv.visitMaxs(2, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "writeExternal", "(Ljava/io/ObjectOutput;)V", null, new String[] { "java/io/IOException" }); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(185, l0); for (final FieldModel fm : tm.fields()) { mv.visitVarInsn(ALOAD, 1); if (fm.bcLSetType().equals(fm.bcLFieldType())) { mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "write", "(Ljava/io/ObjectOutput;" + fm.bcLSetType() + ")V"); } else { mv.visitLdcInsn(Type.getType(fm.bcLFieldType())); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType()); mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "write", "(Ljava/io/ObjectOutput;Ljava/lang/Class;" + fm.bcLSetType() + ")V"); } } final Label l13 = new Label(); mv.visitLabel(l13); mv.visitLineNumber(288, l13); mv.visitInsn(RETURN); final Label l14 = new Label(); mv.visitLabel(l14); mv.visitLocalVariable("this", "L" + name2 + ';', null, l0, l14, 0); mv.visitLocalVariable("out", "Ljava/io/ObjectOutput;", null, l0, l14, 1); mv.visitMaxs(4, 2); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "readExternal", "(Ljava/io/ObjectInput;)V", null, new String[] { "java/io/IOException", "java/lang/ClassNotFoundException" }); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(287, l0); for (final FieldModel fm : tm.fields()) { mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); if (fm.bcLSetType().equals(fm.bcLFieldType())) { mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "read", "(Ljava/io/ObjectInput;)" + fm.bcLSetType()); } else { mv.visitLdcInsn(Type.getType(fm.bcLFieldType())); mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "read", "(Ljava/io/ObjectInput;Ljava/lang/Class;)" + fm.bcLSetType()); mv.visitTypeInsn(CHECKCAST, fm.bcFieldType()); } mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(), "(" + fm.bcLFieldType() + ")V"); } final Label l13 = new Label(); mv.visitLabel(l13); mv.visitLineNumber(305, l13); mv.visitInsn(RETURN); final Label l14 = new Label(); mv.visitLabel(l14); mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l14, 0); mv.visitLocalVariable("in", "Ljava/io/ObjectInput;", null, l0, l14, 1); mv.visitMaxs(3, 2); mv.visitEnd(); } } public static byte[] dumpImpl(final TypeModel tm) { final ClassWriter cw = new ClassWriter(0); FieldVisitor fv; MethodVisitor mv; final String name = tm.bcType(); cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name + "Impl", "Ljava/lang/Object;L" + name + ";L" + collections + "api/HugeElement<L" + name + ";>;Ljava/io/Externalizable;", "java/lang/Object", new String[] { name, collections + "api/HugeElement", "java/io/Externalizable" }); cw.visitSource(tm.getClass().getSimpleName() + "Impl.java", null); for (final FieldModel fm : tm.fields()) { fv = cw.visitField(ACC_PRIVATE, "m_" + fm.fieldName(), fm.bcLFieldType(), null, null); fv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(30, l0); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); mv.visitInsn(RETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l0, l1, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } for (final FieldModel fm : tm.fields()) { mv = cw.visitMethod(ACC_PUBLIC, "set" + fm.titleFieldName(), "(" + fm.bcLFieldType() + ")V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(47, l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(loadFor(fm.bcType()), 1); mv.visitFieldInsn(PUTFIELD, name + "Impl", "m_" + fm.fieldName(), fm.bcLFieldType()); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(48, l1); mv.visitInsn(RETURN); final Label l2 = new Label(); mv.visitLabel(l2); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l0, l2, 0); mv.visitLocalVariable("b", fm.bcLFieldType(), null, l0, l2, 1); mv.visitMaxs(1 + fm.bcFieldSize(), 1 + fm.bcFieldSize()); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType(), null, null); mv.visitCode(); final Label l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(45, l3); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, name + "Impl", "m_" + fm.fieldName(), fm.bcLFieldType()); mv.visitInsn(returnFor(fm.bcType())); final Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l3, l4, 0); mv.visitMaxs(1 + fm.bcFieldSize(), 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "index", "(J)V", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(175, l0); mv.visitTypeInsn(NEW, "java/lang/UnsupportedOperationException"); mv.visitInsn(DUP); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>", "()V"); mv.visitInsn(ATHROW); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l0, l1, 0); mv.visitLocalVariable("n", "J", null, l0, l1, 1); mv.visitMaxs(2, 3); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "index", "()J", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(180, l0); mv.visitInsn(LCONST_0); mv.visitInsn(LRETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l0, l1, 0); mv.visitMaxs(2, 1); mv.visitEnd(); } appendToStringHashCodeEqualsCopyOf(tm, cw, name + "Impl", false); { mv = cw.visitMethod(ACC_PUBLIC, "hugeElementType", "()L" + collections + "api/HugeElementType;", null, null); mv.visitCode(); final Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(236, l0); mv.visitFieldInsn(GETSTATIC, collections + "api/HugeElementType", "BeanImpl", "L" + collections + "api/HugeElementType;"); mv.visitInsn(ARETURN); final Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + "Impl;", null, l0, l1, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } cw.visitEnd(); final byte[] bytes = cw.toByteArray(); // ClassReader cr = new ClassReader(bytes); // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0); return bytes; } private static final int[] returnForArray = { IRETURN, LRETURN, DRETURN, FRETURN, ARETURN }; private static int returnFor(final BCType bcType) { return returnForArray[bcType.ordinal()]; } private static final int[] loadForArray = { ILOAD, LLOAD, DLOAD, FLOAD, ALOAD }; private static int loadFor(final BCType bcType) { return loadForArray[bcType.ordinal()]; } private static final int[] storeForArray = { ISTORE, LSTORE, DSTORE, FSTORE, ASTORE }; private static int storeFor(final BCType bcType) { return storeForArray[bcType.ordinal()]; } public static void clean(final Buffer buffer) { final Cleaner cleaner = ((DirectBuffer) buffer).cleaner(); if (cleaner != null) { cleaner.clean(); } } }