Redundant Nil Coalescing

nil coalescing operator is only evaluated if the lhs is nil, coalescing operator with nil as rhs is redundant

• Identifier: redundant_nil_coalescing
• Enabled by default: Disabled
• Supports autocorrection: Yes
• Kind: idiomatic
• Analyzer rule: No
• Minimum Swift compiler version: 3.0.0
• Default configuration: warning

Non Triggering Examples

var myVar: Int?; myVar ?? 0

Triggering Examples

var myVar: Int? = nil; myVar↓ ?? nil

var myVar: Int? = nil; myVar↓??nil