RDC00114 — Implicit array declaration

Severity: Information · Family: RDC (Rubberduck Core analyzers) · Raised by: ImplicitArrayDeclarationAnalyzer

A ReDim statement declares the array it re-dimensions.

A ReDim gives an array its dimensions. When its name matches no variable and no constant - of the procedure, the module, another module or a library - the ReDim declares a new array of that name in the procedure (MS-VBAL §5.4.3.3), under Option Explicit too. A name that is misspelled, or a ReDim that was meant for an array of another module that is not declared yet, quietly becomes a new array, and the array meant is left as it was. The diagnostic is an opinion of the analyzer and not a condition of the language: both are legal VBA.

A Dim before the ReDim says that a new array is meant, and gives it its type: Option Explicit then catches a name that is misspelled.

That the name matched nothing is a fact the host vouches for, which knows every module and library the name could have matched. A name the ReDim hides - a procedure, a module or a function of a library of the same name - is another matter.

How it is raised

Situation	Example	Resolution
A `ReDim` of a name nothing declares.	`ReDim totals(1 To 12)`	Declare the array first: `Dim totals() As Currency`, then `ReDim totals(1 To 12)`.

Table of Contents

RDC00114 — Implicit array declaration

How it is raised

See also