Control Statement

if, for, guard, switch, while, and catch statements shouldn’t unnecessarily wrap their conditionals or arguments in parentheses

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

  Key	Value
  severity	warning

Non Triggering Examples

if condition {}

if (a, b) == (0, 1) {}

if (a || b) && (c || d) {}

if (min...max).contains(value) {}

if renderGif(data) {}

renderGif(data)

guard condition else {}

while condition {}

do {} while condition {}

do { ; } while condition {}

switch foo {}

do {} catch let error as NSError {}

foo().catch(all: true) {}

if max(a, b) < c {}

switch (lhs, rhs) {}

if (f() { g() {} }) {}

if (a + f() {} == 1) {}

if ({ true }()) {}

Triggering Examples

↓if (condition) {}

↓if(condition) {}

↓if (condition == endIndex) {}

↓if ((a || b) && (c || d)) {}

↓if ((min...max).contains(value)) {}

↓guard (condition) else {}

↓while (condition) {}

↓while(condition) {}

do { ; } ↓while(condition) {}

do { ; } ↓while (condition) {}

↓switch (foo) {}

do {} ↓catch(let error as NSError) {}

↓if (max(a, b) < c) {}