getElement

Get struct element from struct type

Since R2023b

Syntax

StructElemObj = getElement(StructTypeObj, elementName)

Description

StructElemObj = getElement(StructTypeObj, elementName) returns the struct element object with the name elementName contained in the struct type object, StructTypeObj.

Examples

Configure Struct Elements of a StructType

To configure struct elements of a struct type, use the addElement, getElement, and removeElement functions.

In this example, the dictionary MyInterfaces.sldd contains one struct type.

archDataObj = Simulink.dictionary.archdata.open("MyInterfaces.sldd")

archDataObj = 

  ArchitecturalData with properties:

    DictionaryFileName: 'MyInterfaces.sldd'
            Interfaces: [0×0 Simulink.dictionary.archdata.DataInterface]
             DataTypes: [1×1 Simulink.dictionary.archdata.StructType]
             Constants: [0×0 Simulink.dictionary.archdata.Constant]

Get the struct type object using the getDataType function. The struct type object contains two struct element objects.

structTypeObj = getDataType(archDataObj,"structType1")

structTypeObj = 

  StructType with properties:

           Name: 'structType1'
    Description: ''
       Elements: [1×2 Simulink.dictionary.archdata.StructElement]
          Owner: [1×1 Simulink.dictionary.ArchitecturalData]

To create a struct element object and add it to the struct type, use the addElement function.

structElemObj3 = addElement(structTypeObj,"structElement3")

structElemObj3 = 

  StructElement with properties:

           Name: 'structElement3'
           Type: [1×1 Simulink.dictionary.archdata.ValueType]
    Description: ''
     Dimensions: '1'
          Owner: [1×1 Simulink.dictionary.archdata.StructType]

To access an existing function element, use the getElement function.

structElemObj2 = getElement(structTypeObj,"structElement2")

structElemObj2 = 

  StructElement with properties:

           Name: 'structElement2'
           Type: [1×1 Simulink.dictionary.archdata.ValueType]
    Description: ''
     Dimensions: '1'
          Owner: [1×1 Simulink.dictionary.archdata.StructType]

To remove a struct element from a struct type, use the removeElement function.

removeElement(structTypeObj,"structElement1")

The struct type object now contains only two struct elements, structElement2 and structElement3

structTypeObj.Elements(1)

ans = 

  StructElement with properties:

           Name: 'structElement2'
           Type: [1×1 Simulink.dictionary.archdata.ValueType]
    Description: ''
     Dimensions: '1'
          Owner: [1×1 Simulink.dictionary.archdata.StructType]

structTypeObj.Elements(2)

ans = 

  StructElement with properties:

           Name: 'structElement3'
           Type: [1×1 Simulink.dictionary.archdata.ValueType]
    Description: ''
     Dimensions: '1'
          Owner: [1×1 Simulink.dictionary.archdata.StructType]

Input Arguments

StructTypeObj — Struct type

Simulink.dictionary.archdata.StructType object

Struct type containing the struct element, specified as a Simulink.dictionary.archdata.StructType object.

elementName — Element name

character vector | string scalar

Struct element name, specified as a character vector or string scalar.

Data Types: char | string

Output Arguments

StructElemObj — Struct element

Simulink.dictionary.archdata.StructElement object

Struct element with the specified name, returned as a Simulink.dictionary.archdata.StructElement object.

Version History

Introduced in R2023b