---
title: switchMetaParameterDefinition
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phaseswitchnodedefinition/switchmetaparameterdefinition
---

# switchMetaParameterDefinition

The meta parameter that holds the name of the child node to invoke.

## Declaration

```swift
var switchMetaParameterDefinition: PHASEStringMetaParameterDefinition { get }
```

## Discussion

Discussion The framework sets the value of this property to the init(switchMetaParameterDefinition:) argument.

## See Also

### Managing Child Nodes

- [addSubtree(_:switchValue:)](phase/phaseswitchnodedefinition/addsubtree(_:switchvalue:).md)