UseToExportFieldsInManifest.md

description	ms.custom	ms.date	ms.topic	title
Use the *ToExport module manifest fields.	PSSA v1.22.1	06/28/2023	reference	UseToExportFieldsInManifest

UseToExportFieldsInManifest

Severity Level: Warning

Description

To improve the performance of module auto-discovery, module manifests should not use wildcards ('*') or null ($null) in the following entries:

• AliasesToExport
• CmdletsToExport
• FunctionsToExport
• VariablesToExport

Using wildcards or null has causes PowerShell to perform expensive work to analyze a module during module auto-discovery.

How

Use an explicit list in the entries.

Example 1

Suppose there are no functions in your module to export. Then,

Wrong

FunctionsToExport = $null

Correct

FunctionToExport = @()

Example 2

Suppose there are only two functions in your module, Get-Foo and Set-Foo that you want to export. Then,

Wrong

FunctionsToExport = '*'

Correct

FunctionToExport = @(Get-Foo, Set-Foo)