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edu.illinois.nondex.instr.HashIteratorShufflerASMDump Maven / Gradle / Ivy
package edu.illinois.nondex.instr;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
public class HashIteratorShufflerASMDump implements Opcodes {
public static byte[] dump (String type, String baseName, String varName) {
ClassWriter cw = new ClassWriter(0);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(52, ACC_SUPER, baseName + "$HashIterator$HashIteratorShuffler", null, "java/lang/Object", null);
cw.visitInnerClass(baseName + "$" + type, baseName, type, ACC_STATIC);
cw.visitInnerClass(baseName + "$HashIterator", baseName, "HashIterator", ACC_ABSTRACT);
cw.visitInnerClass(baseName + "$HashIterator$HashIteratorShuffler", baseName + "$HashIterator", "HashIteratorShuffler", 0);
{
fv = cw.visitField(ACC_PRIVATE, "iter", "Ljava/util/Iterator;", "Ljava/util/Iterator;>;", null);
fv.visitEnd();
}
{
fv = cw.visitField(ACC_PRIVATE, "hashIter", "L" + baseName + "$HashIterator;", "L" + baseName + ".HashIterator;", null);
fv.visitEnd();
}
{
fv = cw.visitField(ACC_FINAL + ACC_SYNTHETIC, "this$1", "L" + baseName + "$HashIterator;", null, null);
fv.visitEnd();
}
{
mv = cw.visitMethod(ACC_PUBLIC, "", "(L" + baseName + "$HashIterator;L" + baseName + "$HashIterator;)V", "(L" + baseName + ".HashIterator;)V", null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitFieldInsn(PUTFIELD, baseName + "$HashIterator$HashIteratorShuffler", "this$1", "L" + baseName + "$HashIterator;");
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "", "()V", false);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 2);
mv.visitFieldInsn(PUTFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitTypeInsn(NEW, "java/util/ArrayList");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "", "()V", false);
mv.visitVarInsn(ASTORE, 3);
Label l0 = new Label();
mv.visitLabel(l0);
mv.visitFrame(F_FULL, 4, new Object[] {baseName + "$HashIterator$HashIteratorShuffler", baseName + "$HashIterator", baseName + "$HashIterator", "java/util/List"}, 0, new Object[] {});
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitMethodInsn(INVOKEVIRTUAL, baseName + "$HashIterator", "original_hasNext", "()Z", false);
Label l1 = new Label();
mv.visitJumpInsn(IFEQ, l1);
mv.visitVarInsn(ALOAD, 3);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitMethodInsn(INVOKEVIRTUAL, baseName + "$HashIterator", "original_next" + type, "()L" + baseName + "$" + type + ";", false);
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z", true);
mv.visitInsn(POP);
mv.visitJumpInsn(GOTO, l0);
mv.visitLabel(l1);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKESTATIC, "edu/illinois/nondex/shuffling/ControlNondeterminism", "shuffle", "(Ljava/util/List;)Ljava/util/List;", false);
mv.visitVarInsn(ASTORE, 3);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "iterator", "()Ljava/util/Iterator;", true);
mv.visitFieldInsn(PUTFIELD, baseName + "$HashIterator$HashIteratorShuffler", "iter", "Ljava/util/Iterator;");
mv.visitInsn(RETURN);
mv.visitMaxs(2, 4);
mv.visitEnd();
}
{
mv = cw.visitMethod(ACC_PUBLIC, "next" + type, "(I)L" + baseName + "$" + type + ";", "(I)L" + baseName + "$" + type + ";", null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator", "expectedModCount", "I");
Label l0 = new Label();
mv.visitJumpInsn(IF_ICMPEQ, l0);
mv.visitTypeInsn(NEW, "java/util/ConcurrentModificationException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/util/ConcurrentModificationException", "", "()V", false);
mv.visitInsn(ATHROW);
mv.visitLabel(l0);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "iter", "Ljava/util/Iterator;");
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
mv.visitTypeInsn(CHECKCAST, baseName + "$" + type);
mv.visitFieldInsn(PUTFIELD, baseName + "$HashIterator", varName, "L" + baseName + "$" + type + ";");
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "hashIter", "L" + baseName + "$HashIterator;");
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator", varName, "L" + baseName + "$" + type + ";");
mv.visitInsn(ARETURN);
mv.visitMaxs(2, 2);
mv.visitEnd();
}
{
mv = cw.visitMethod(ACC_PUBLIC, "hasNext", "()Z", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, baseName + "$HashIterator$HashIteratorShuffler", "iter", "Ljava/util/Iterator;");
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true);
mv.visitInsn(IRETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
}
