ProcedureNotUsed

Locates procedures that are never invoked from user code.


New This feature is currently only available in pre-release builds (or the xmldoc asset doesn’t yet exist on main!).

Inspection type: CodeQualityIssues

Default severity: Warning

Reasoning

Unused procedures are dead code that should probably be removed. Note, a procedure may be effectively "not used" in code, but attached to some Shape object in the host document: in such cases the inspection result should be ignored

Remarks

Not all unused procedures can/should be removed: ignore any inspection results for event handler procedures and interface members that Rubberduck isn't recognizing as such. Public procedures of Standard Modules are not flagged by this inspection regardless of the presence or absence of user code references.

Quick-Fixes

The following quick-fixes are available for this inspection:

  • IgnoreOnce: Adds an '@Ignore annotation to ignore a specific inspection result. Applicable to all inspections whose results can be annotated in a module.
  • IgnoreInModule: Adds an '@IgnoreModule annotation to ignore a inspection results for a specific inspection inside a whole module. Applicable to all inspections whose results can be annotated in a module.
  • RemoveUnusedDeclaration: Removes the declaration for a constant, variable, procedure, or line label that isn't used. This operation can break the code if the declaration is actually in use but Rubberduck couldn't find where.

Examples

Each example is a self-contained MCVE showing the feature in a single specific scenario.

Standard Module
Named Module1 by default, these are general-purpose standard procedural modules.
Class Module
Named Class1 by default, these modules define the default interface for an object of that type.
Predeclared Class
A class module with its VB_PredeclaredId attribute set to True (with or without a @PredeclaredId annotation).
Interface Module
Abstract interfaces are class modules (with or without an @Interface annotation) whose default interface is not a class type intended to be instantiated.
UserForm Module
A predeclared class with a design-time visual designer using the MSForms UI framework.
Document Module
Owned by the host application, these class modules belong to the host document and may handle various events fired by the host application.

The following code should trigger this inspection:

Module1

Option Explicit
Private Sub DoSomething()
End Sub

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