nesting.md

Pattern: Too many nested blocks

Issue: -

Description

Types should be nested at most 1 level deep, and statements should be nested at most 5 levels deep.

Examples of correct code:

class Class0 { class Class1 {} }


func func0() {
func func1() {
func func2() {
func func3() {
func func4() { func func5() {
}
}
}
}
}
}


struct Class0 { struct Class1 {} }


func func0() {
func func1() {
func func2() {
func func3() {
func func4() { func func5() {
}
}
}
}
}
}


enum Class0 { enum Class1 {} }


func func0() {
func func1() {
func func2() {
func func3() {
func func4() { func func5() {
}
}
}
}
}
}


enum Enum0 { enum Enum1 { case Case } }

Examples of incorrect code:

class A { class B { ↓class C {} } }


struct A { struct B { ↓struct C {} } }


enum A { enum B { ↓enum C {} } }


func func0() {
func func1() {
func func2() {
func func3() {
func func4() { func func5() {
↓func func6() {
}
}
}
}
}
}
}

Further Reading

• SwiftLint - Nesting