micropython

docs/rejected.txt

442:13aae946513b
2011-07-05 Paul Boddie Introduced Instance() in place of None as a result and for the value of the active expression where no definitive object can be deduced. Made all Instance values compare equal to each other in order to avoid duplication in sets. Improved Constant comparisons. Fixed assignment counting where many values are provided in a single assignment. Added inspection support for conditional expressions (since they are used in the standard library).
     1 Namespace Definitions
     2 =====================
     3 
     4 Attributes can be redefined in modules and classes, but this eliminates much
     5 of the potential for optimisation. However, names of classes and functions
     6 could be restricted to only refer to the same kinds of objects within the same
     7 namespace. If redefinition were to occur, or if multiple possibilities were
     8 present, these restrictions could be moderated as follows:
     9 
    10   * Classes assigned to the same name could provide the union of their
    11     attributes. This would, however, cause a potential collision of attribute
    12     definitions such as methods.
    13 
    14   * Functions, if they share compatible signatures, could share parameter list
    15     definitions.
    16 
    17 It is easier, however, to regard multiply defined classes and functions as
    18 non-constant and to either disallow optimisations or to actually prevent the
    19 program describing them from compiling.