BSL004 — Empty code block

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Summary

Empty code block

Identifiers

Field	Value
Rule code	BSL004
Compatible alias	EmptyCodeBlock
Severity	ERROR
Enabled by default	Yes
Implemented	Yes
Tags	error-handling

Behavior

• The public identifier BSL004 and alias EmptyCodeBlock 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 = ["BSL004"]
ignore = ["EmptyCodeBlock"]

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: BSL004

• bsl-disable:

Value = "example";  // bsl-disable: BSL004

• compatible BSLLS form:

Value = "example";  // BSLLS:EmptyCodeBlock-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: BSL004
// code without this diagnostic
// noqa-enable: BSL004

// bsl-disable: BSL004
// code without this diagnostic
// bsl-enable: BSL004

// BSLLS:EmptyCodeBlock-off
// code without this diagnostic
// BSLLS:EmptyCodeBlock-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

Empty blocks are a sign of a possible error:

• Forgot to implement
• Deleted content

Empty blocks of code must be filled or removed.