Main Content


Class: matlab.mixin.indexing.RedefinesParen
Namespace: matlab.mixin.indexing

Customize handling of object index references that begin with parentheses

Since R2021b


varargout = parenReference(obj,indexOp)


varargout = parenReference(obj,indexOp) handles index referencing operations that begin with parentheses, such as obj(idx) or obj(idx).prop{1}. The method returns the indexed values from obj. The indexOp object contains the indices being referenced.

Input Arguments

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Object that implements customized parentheses indexing by inheriting from matlab.mixin.indexing.RedefinesParen.

Types of indexing operations and indices referenced, specified as an array of IndexingOperation objects. For a parentheses reference, the first object in the array has a Type property of Paren.

Output Arguments

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The indexed values returned from the reference operation, specified as a cell array.



To learn about attributes of methods, see Method Attributes.


For a general framework that shows how to implement customized parentheses indexing, see matlab.mixin.indexing.RedefinesParen. For a runnable example of a mapping class that implements custom parentheses indexing, see Customize Parentheses Indexing for Mapping Class.

Extended Capabilities

Thread-Based Environment
Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

Version History

Introduced in R2021b