V010

ValidationStandard

check for validation.StringDoesNotMatch() call with empty message argument

The V010 analyzer reports when the second argument for a validation.StringDoesNotMatch() call is an empty string. It is preferred to provide a friendly validation message, rather than allowing the function to return the raw regular expression as the message, since not all practitioners may be familiar with regular expression syntax.

Examples

validation.StringDoesNotMatch(regexp.MustCompile(`^[!@#$%^&*()]+$`), "")

validation.StringDoesNotMatch(regexp.MustCompile(`^[!@#$%^&*()]+$`), "must not contain exclamation, at, octothorp, US dollar, percentage, carat, ampersand, star, or parenthesis symbols")

Ignoring reports

Singular reports can be ignored by adding a //lintignore:V010 Go code comment at the end of the offending line or on the line immediately preceding, e.g.

validation.StringDoesNotMatch(regexp.MustCompile(`^[!@#$%^&*()]+$`), "") //lintignore:V010

This page is generated from passes/V010/README.md, which lives beside the analyzer.