Examples of org.objectweb.asm.MethodVisitor.visitVarInsn()

org.objectweb.asm.MethodVisitor.visitVarInsn()
Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable. @param opcode the opcode of the local variable instruction to be visited.This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET. @param var the operand of the instruction to be visited. This operand isthe index of a local variable.

      mv.visitEnd();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "checkAndSetF", "(I)V", null, null);
    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ILOAD, 1);
      Label label = new Label();
      mv.visitJumpInsn(IFLT, label);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitVarInsn(ILOAD, 1);
      mv.visitFieldInsn(PUTFIELD, "pkg/Bean", "f", "I");

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    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ILOAD, 1);
      Label label = new Label();
      mv.visitJumpInsn(IFLT, label);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitVarInsn(ILOAD, 1);
      mv.visitFieldInsn(PUTFIELD, "pkg/Bean", "f", "I");
      Label end = new Label();
      mv.visitJumpInsn(GOTO, end);
      mv.visitLabel(label);

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      mv.visitCode();
      mv.visitVarInsn(ILOAD, 1);
      Label label = new Label();
      mv.visitJumpInsn(IFLT, label);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitVarInsn(ILOAD, 1);
      mv.visitFieldInsn(PUTFIELD, "pkg/Bean", "f", "I");
      Label end = new Label();
      mv.visitJumpInsn(GOTO, end);
      mv.visitLabel(label);
      mv.visitFrame(F_SAME, 0, null, 0, null);

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      mName = "get" + up(fName);
      mDesc = "()" + fDesc;
      mv = cv.visitMethod(ACC_PUBLIC, mName, mDesc, null, null);
      if (mv != null) {
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, fName, fDesc);
        mv.visitInsn(fType.getOpcode(IRETURN));
        mv.visitMaxs(fType.getSize(), 1);
        mv.visitEnd();
      }

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      mName = "set" + up(fName);
      mDesc = "(" + fDesc + ")V";
      mv = cv.visitMethod(ACC_PUBLIC, mName, mDesc, null, null);
      if (mv != null) {
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(fType.getOpcode(ILOAD), 1);
        mv.visitFieldInsn(PUTFIELD, name, fName, fDesc);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1 + fType.getSize(), 1 + fType.getSize());
        mv.visitEnd();

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      mDesc = "(" + fDesc + ")V";
      mv = cv.visitMethod(ACC_PUBLIC, mName, mDesc, null, null);
      if (mv != null) {
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(fType.getOpcode(ILOAD), 1);
        mv.visitFieldInsn(PUTFIELD, name, fName, fDesc);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1 + fType.getSize(), 1 + fType.getSize());
        mv.visitEnd();
      }

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    }
    MethodVisitor mv;
    mv = cv.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ALOAD, 0);
      mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
          "()V");
      mv.visitInsn(RETURN);
      mv.visitMaxs(1, 1);
      mv.visitEnd();

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    private ClassWriter createCtor(String namePath) throws Exception {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, namePath, null, SUPER_CLASS, null);
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, SUPER_CLASS, "<init>", "()V");
        Label line = new Label();
        mv.visitLineNumber(0, line);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);

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    private ClassWriter createCtorFast(String namePath) throws Exception {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, namePath, null, FAST_SUPER_CLASS, null);
        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, FAST_SUPER_CLASS, "<init>", "()V");
        Label line = new Label();
        mv.visitLineNumber(0, line);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);

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        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "call", CALL_SIG, null, null);
        
        mv.visitCode();
        Label line = new Label();
        mv.visitLineNumber(0, line);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, typePath);
        return mv;
    }


    @Deprecated

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