class CodeSizeEvaluator extends MethodVisitor implements Opcodes {

  private int minSize;

  private int maxSize;

  public CodeSizeEvaluator(final MethodVisitor mv) {
    this(Opcodes.ASM4, mv);
  }

  protected CodeSizeEvaluator(final int api, final MethodVisitor mv) {
    super(api, mv);
  }

  public int getMinSize() {
    return this.minSize;
  }

  public int getMaxSize() {
    return this.maxSize;
  }

  @Override
  public void visitInsn(final int opcode) {
    minSize += 1;
    maxSize += 1;
    if (mv != null) {
      mv.visitInsn(opcode);
    }
  }

  @Override
  public void visitIntInsn(final int opcode, final int operand) {
    if (opcode == SIPUSH) {
      minSize += 3;
      maxSize += 3;
    } else {
      minSize += 2;
      maxSize += 2;
    }
    if (mv != null) {
      mv.visitIntInsn(opcode, operand);
    }
  }

  @Override
  public void visitVarInsn(final int opcode, final int var) {
    if (var < 4 && opcode != RET) {
      minSize += 1;
      maxSize += 1;
    } else if (var >= 256) {
      minSize += 4;
      maxSize += 4;
    } else {
      minSize += 2;
      maxSize += 2;
    }
    if (mv != null) {
      mv.visitVarInsn(opcode, var);
    }
  }

  @Override
  public void visitTypeInsn(final int opcode, final String type) {
    minSize += 3;
    maxSize += 3;
    if (mv != null) {
      mv.visitTypeInsn(opcode, type);
    }
  }

  @Override
  public void visitFieldInsn(final int opcode, final String owner, final String name,
      final String desc) {
    minSize += 3;
    maxSize += 3;
    if (mv != null) {
      mv.visitFieldInsn(opcode, owner, name, desc);
    }
  }

  @Override
  public void visitMethodInsn(final int opcode, final String owner, final String name,
      final String desc) {
    if (opcode == INVOKEINTERFACE) {
      minSize += 5;
      maxSize += 5;
    } else {
      minSize += 3;
      maxSize += 3;
    }
    if (mv != null) {
      mv.visitMethodInsn(opcode, owner, name, desc);
    }
  }

  @Override
  public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs) {
    minSize += 5;
    maxSize += 5;
    if (mv != null) {
      mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
    }
  }

  @Override
  public void visitJumpInsn(final int opcode, final Label label) {
    minSize += 3;
    if (opcode == GOTO || opcode == JSR) {
      maxSize += 5;
    } else {
      maxSize += 8;
    }
    if (mv != null) {
      mv.visitJumpInsn(opcode, label);
    }
  }

  @Override
  public void visitLdcInsn(final Object cst) {
    if (cst instanceof Long || cst instanceof Double) {
      minSize += 3;
      maxSize += 3;
    } else {
      minSize += 2;
      maxSize += 3;
    }
    if (mv != null) {
      mv.visitLdcInsn(cst);
    }
  }

  @Override
  public void visitIincInsn(final int var, final int increment) {
    if (var > 255 || increment > 127 || increment < -128) {
      minSize += 6;
      maxSize += 6;
    } else {
      minSize += 3;
      maxSize += 3;
    }
    if (mv != null) {
      mv.visitIincInsn(var, increment);
    }
  }

  @Override
  public void visitTableSwitchInsn(final int min, final int max, final Label dflt,
      final Label... labels) {
    minSize += 13 + labels.length * 4;
    maxSize += 16 + labels.length * 4;
    if (mv != null) {
      mv.visitTableSwitchInsn(min, max, dflt, labels);
    }
  }

  @Override
  public void visitLookupSwitchInsn(final Label dflt, final int[] keys, final Label[] labels) {
    minSize += 9 + keys.length * 8;
    maxSize += 12 + keys.length * 8;
    if (mv != null) {
      mv.visitLookupSwitchInsn(dflt, keys, labels);
    }
  }

  @Override
  public void visitMultiANewArrayInsn(final String desc, final int dims) {<FILL_FUNCTION_BODY>}
}

    minSize += 4;
    maxSize += 4;
    if (mv != null) {
      mv.visitMultiANewArrayInsn(desc, dims);
    }
  
<methods>public void <init>(int) ,public void <init>(int, com.googlecode.aviator.asm.MethodVisitor) ,public com.googlecode.aviator.asm.AnnotationVisitor visitAnnotation(java.lang.String, boolean) ,public com.googlecode.aviator.asm.AnnotationVisitor visitAnnotationDefault() ,public void visitAttribute(com.googlecode.aviator.asm.Attribute) ,public void visitCode() ,public void visitEnd() ,public void visitFieldInsn(int, java.lang.String, java.lang.String, java.lang.String) ,public void visitFrame(int, int, java.lang.Object[], int, java.lang.Object[]) ,public void visitIincInsn(int, int) ,public void visitInsn(int) ,public void visitIntInsn(int, int) ,public transient void visitInvokeDynamicInsn(java.lang.String, java.lang.String, com.googlecode.aviator.asm.Handle, java.lang.Object[]) ,public void visitJumpInsn(int, com.googlecode.aviator.asm.Label) ,public void visitLabel(com.googlecode.aviator.asm.Label) ,public void visitLdcInsn(java.lang.Object) ,public void visitLineNumber(int, com.googlecode.aviator.asm.Label) ,public void visitLocalVariable(java.lang.String, java.lang.String, java.lang.String, com.googlecode.aviator.asm.Label, com.googlecode.aviator.asm.Label, int) ,public void visitLookupSwitchInsn(com.googlecode.aviator.asm.Label, int[], com.googlecode.aviator.asm.Label[]) ,public void visitMaxs(int, int) ,public void visitMethodInsn(int, java.lang.String, java.lang.String, java.lang.String) ,public void visitMultiANewArrayInsn(java.lang.String, int) ,public com.googlecode.aviator.asm.AnnotationVisitor visitParameterAnnotation(int, java.lang.String, boolean) ,public transient void visitTableSwitchInsn(int, int, com.googlecode.aviator.asm.Label, com.googlecode.aviator.asm.Label[]) ,public void visitTryCatchBlock(com.googlecode.aviator.asm.Label, com.googlecode.aviator.asm.Label, com.googlecode.aviator.asm.Label, java.lang.String) ,public void visitTypeInsn(int, java.lang.String) ,public void visitVarInsn(int, int) <variables>protected final non-sealed int api,protected com.googlecode.aviator.asm.MethodVisitor mv