xpcom/base/nsIMutable.idl

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  22  * Contributor(s):
  23  *       Boris Zbarsky <bzbarsky@mit.edu>  (Original Author)
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  38
  39 #include "nsISupports.idl"
  40
  41 /**
  42  * nsIMutable defines an interface to be implemented by objects which
  43  * can be made immutable.
  44  */
  45 [scriptable, uuid(321578d0-03c1-4d95-8821-021ac612d18d)]
  46 interface nsIMutable : nsISupports
  47 {
  48     /**
  49      * Control whether or not this object can be modified.  If the flag is
  50      * false, no modification is allowed.  Once the flag has been set to false,
  51      * it cannot be reset back to true -- attempts to do so throw
  52      * NS_ERROR_INVALID_ARG.
  53      */
  54     attribute boolean mutable;
  55 };