Package: globals
================

Version: 0.7.2 [2016-12-28]

BUG FIXES:

  o c(x, list()) where x is a Globals object would give an error
    reporting that the list does not have named elements.
  
  
Version: 0.7.1 [2016-10-13]

NEW FEATURES:

  o Globals() and as.Globals() now accepts an empty list
    as input as well.

BUG FIXES:

  o walkAST(quote( function(x=NULL) 0 )) would give a sanity check
    error due to the NULL argument.  Thank you GitHub user billy34
    for reporting on this.
  
  
Version: 0.7.0 [2016-09-08]

NEW FEATURES:

  o Added walkAST(), which can be used to tweak expressions.

  o Added globalsByName() for locating and retrieving a set of
    known global variables.

  o Added c(), $<-(), names(), unique() for Globals objects.
    Improved as.Globals() for lists.
  
  
Version: 0.6.1 [2016-01-31]

NEW FEATURES:

  o Now the error message of globalsOf(..., mustExist=TRUE) when
    it fails to locate a global also gives information on the
    expression that is problematic.

BUG FIXES:

  o cleanup() for Globals did not cleanup functions in core package
    environments named 'package:<name>'.
  
  
Version: 0.6.0 [2015-12-12]

NEW FEATURES:

  o findGlobals() is updated to handle the case where a local
    variable is overwriting a global one with the same name,
    e.g. { a <- b; b <- 1 }.  Now 'b' is correctly identified
    as a global object.  Previously it would have been missed.
    For backward compatibility, the previous behavior can be
    obtained using argument method="conservative".
  
  
Version: 0.5.0 [2015-10-13]

NEW FEATURES:

  o globalsOf() now returns attribute 'where' specifying where
    each global object is located.

BUG FIXES:

  o cleanup() now only drops objects that are *located* in one of
    the "base" packages; previously it would also drop copies of
    such objects, e.g. FUN <- base::sample.
  
  
Version: 0.4.1 [2015-10-05]

BUG FIXES:

  o globalsOf() failed to return global variables with value NULL.
    They were identified but silently dropped.
  
  
Version: 0.4.0 [2015-09-12]

NEW FEATURES:

  o findGlobals() and globalsOf() gained argument 'dotdotdot'.

  
Version: 0.3.1 [2015-06-10]

  o More test coverage.
  
  
Version: 0.3.0 [2015-06-08]

NEW FEATURES:

  o Renamed getGlobals() to globalsOf().
  
  
Version: 0.2.3 [2015-06-08]

NEW FEATURES:

  o Added [() for Globals.

  o findGlobals() and getGlobals() gained argument 'substitute'.

  o Added cleanup(..., method="internals").
  
  
Version: 0.2.2 [2015-05-20]

NEW FEATURES:

  o Added Globals class with methods cleanup() and packagesOf().
    Added as.Globals() to coerce lists to Globals objects.
  
  
Version: 0.2.1 [2015-05-20]

NEW FEATURES:

  o getGlobals() gained argument 'mustExist' for controlling whether
    to give an error when the corresponding object for an identified
    global cannot be found or to silently drop the missing global.

  o findGlobals() and getGlobals() gained argument 'method' for
    controlling whether a "conservative" or a "liberal" algorithm
    for identifying true globals should be used.
  
  
Version: 0.2.0 [2015-05-19]

  o Moved globals function from an in-house package to this package.
  
  
Version: 0.1.0 [2015-02-07]

  o Created.
