30 lines
836 B
Plaintext
30 lines
836 B
Plaintext
A chain of ``If``/``ElseIf`` statements is evaluated from top to bottom. At most, only one branch will be executed: the first one with a condition that evaluates to ``True``.
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Therefore, duplicating a condition automatically leads to dead code. Usually, this is due to a copy/paste error. At best, it's simply dead code and at worst, it's a bug that is likely to induce further bugs as the code is maintained, and obviously it could lead to unexpected behavior.
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== Noncompliant Code Example
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----
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If param = 1 Then
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OpenWindow()
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ElseIf param = 2 Then
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CloseWindow()
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ElseIf param = 1 Then ' Noncompliant
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MoveWindowToTheBackground()
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End If
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----
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== Compliant Solution
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----
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If param = 1 Then
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OpenWindow()
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ElseIf param = 2 Then
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CloseWindow()
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ElseIf param = 3 Then
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MoveWindowToTheBackground()
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End If
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----
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include::../see.adoc[]
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