Unary Plus sign in string concatenation (UnaryPlusInConcatenation)¶
| Type | Scope | Severity | Activated by default |
Minutes to fix |
Tags |
|---|---|---|---|---|---|
Error |
BSLOS |
Blocker |
Yes |
1 |
suspiciousbrainoverload |
Description¶
When concatenating strings, a developer may mistakenly write code String + + String2, i.e. the second plus, the platform recognizes as unary and tries to cast to a number, which in most cases will lead to a runtime exception
Snippets¶
Diagnostic ignorance in code¶
// BSLLS:UnaryPlusInConcatenation-off
// BSLLS:UnaryPlusInConcatenation-on
Parameter for config¶
"UnaryPlusInConcatenation": false