nelson.mixin.indexing.RedefinesBrace

Customize brace indexing of a class.

📝Syntax

classdef MyClass < nelson.mixin.indexing.RedefinesBrace

📥Input Arguments

Parameter	Description
obj	an object of a class deriving from nelson.mixin.indexing.RedefinesBrace.

📤Output Arguments

Parameter	Description
obj	an object supporting customized brace indexing.

📄Description

Derive from nelson.mixin.indexing.RedefinesBrace to give a class its own brace indexing behavior. A subclass implements the protected methods braceReference(obj, indexOp) (value of obj{...}), braceAssign(obj, indexOp, value) (obj{...} = value) and braceListLength(obj, indexOp, indexContext).

indexOp is a nelson.indexing.IndexingOperation whose Indices property is a cell array of the subscripts.

💡Examples

A cell-like container.

classdef Bag < nelson.mixin.indexing.RedefinesBrace
  properties
    Data
  end
  methods
    function obj = Bag(x)
      obj.Data = x;
    end
  end
  methods (Access = protected)
    function varargout = braceReference(obj, indexOp)
      varargout{1} = obj.Data{indexOp.Indices{1}};
    end
    function obj = braceAssign(obj, indexOp, val)
      obj.Data{indexOp.Indices{1}} = val;
    end
    function n = braceListLength(obj, indexOp, ctx)
      n = 1;
    end
  end
end

🕔Version History

Version	Description
2.0.0	initial version

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