BSL198 — Duplicated conditions in If...Then...ElseIf... statements¶

Summary¶

Duplicated conditions in If...Then...ElseIf... statements

Identifiers¶

Field	Value
Rule code	`BSL198`
Compatible alias	`IfElseDuplicatedCondition`
Severity	`WARNING`
Enabled by default	Yes
Implemented	Yes
Tags	`suspicious`, `correctness`

Behavior¶

The public identifier BSL198 and alias IfElseDuplicatedCondition are stable.
The rule reports the cases documented on this page.
Suppressions and project configuration are applied before publication.
The rule requires neither an external analyzer nor network access.

Configuration and suppression¶

BSL### is the primary stable identifier. The compatible alias is accepted in select, ignore, and compatible block suppression comments.

[tool.onec-hbk-bsl]
select = ["BSL198"]
ignore = ["IfElseDuplicatedCondition"]

All three suppression families support both a current line and a range. When an opening comment follows code, it affects only that line. Use any one form:

noqa:

Value = "example";  // noqa: BSL198

bsl-disable:

Value = "example";  // bsl-disable: BSL198

compatible BSLLS form:

Value = "example";  // BSLLS:IfElseDuplicatedCondition-off

When the same opening comment is on a line by itself, it starts a range. Close it with the matching marker from the same family:

// noqa: BSL198
// code without this diagnostic
// noqa-enable: BSL198

// bsl-disable: BSL198
// code without this diagnostic
// bsl-enable: BSL198

// BSLLS:IfElseDuplicatedCondition-off
// code without this diagnostic
// BSLLS:IfElseDuplicatedCondition-on

To disable the rule until the end of the file, omit the closing noqa-enable, bsl-enable, or BSLLS:…-on marker.

Opening and closing markers must belong to the same family.

Description¶

If...Then...ElseIf... statement should not have duplicated conditions.

Examples¶

If p = 0 Then
    t = 0;
ElseIf p = 1 Then
    t = 1;
ElseIf p = 1 Then
    t = 2;
Else
    t = -1;
EndIf;