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Ian Applebaum edited this page Jun 13, 2020 · 1 revision

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: Enabled
  • Supports autocorrection: Yes
  • Kind: style
  • Analyzer rule: No
  • Minimum Swift compiler version: 3.0.0
  • Default configuration: 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)
for item in collection {
for (key, value) in dictionary {
for (index, value) in enumerate(array) {
for var index = 0; index < 42; index++ {
guard condition else {
while condition {
} 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) {

Triggering Examples

↓if (condition) {
↓if(condition) {
↓if (condition == endIndex) {
↓if ((a || b) && (c || d)) {
↓if ((min...max).contains(value)) {
↓for (item in collection) {
↓for (var index = 0; index < 42; index++) {
↓for(item in collection) {
↓for(var index = 0; index < 42; index++) {
↓guard (condition) else {
↓while (condition) {
↓while(condition) {
} ↓while (condition) {
} ↓while(condition) {
do { ; } ↓while(condition) {
do { ; } ↓while (condition) {
↓switch (foo) {
do {
} ↓catch(let error as NSError) {
}
↓if (max(a, b) < c) {
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