Direct Return

Directly return the expression instead of assigning it to a variable first

• Identifier: direct_return
• Enabled by default: No
• Supports autocorrection: Yes
• Kind: style
• Analyzer rule: No
• Minimum Swift compiler version: 5.0.0
• Default configuration:

  Key	Value
  severity	warning

Non Triggering Examples

func f() -> Int {
    let b = 2
    let a = 1
    return b
}

struct S {
    var a: Int {
        var b = 1
        b = 2
        return b
    }
}

func f() -> Int {
    let b = 2
    f()
    return b
}

func f() -> Int {
    { i in
        let b = 2
        return i
    }(1)
}

Triggering Examples

func f() -> Int {
    let ↓b = 2
    return b
}

struct S {
    var a: Int {
        var ↓b = 1
        // comment
        return b
    }
}

func f() -> Bool {
    let a = 1, ↓b = true
    return b
}

func f() -> Int {
    { _ in
        let ↓b = 2
        return b
    }(1)
}

func f(i: Int) -> Int {
    if i > 1 {
        let ↓a = 2
        return a
    } else {
        let ↓b = 2, a = 1
        return b
    }
}