Code Style. Swift
Use this page to configure formatting options for Swift files. When you change these settings, the Preview pane shows how this will affect your code.
Click this link to reveal the list of languages to be used as the base for the current language code style. Only the settings that are applicable to the current language are taken. All the other settings are not affected.
Click Reset to discard changes and return to the initial set of code style settings.
Tabs and Indents
|Use tab character|
The Smart Tabs checkbox is available if the Use tab character checkbox is selected.
|Tab size||In this field, specify the number of spaces included in a tab.|
|Indent||In this field, specify the number of spaces (or tabs if the Use tab character checkbox is selected) to be inserted for each indent level.|
|Continuation indent||In this field, specify the number of spaces (or tabs if the Use tab character checkbox is selected) to be inserted between the elements of an array, in expressions, method declarations and method calls.|
|Keep indents on empty lines||If this checkbox is selected, AppCode will keep indents on the empty lines as if they contained some code.|
If this checkbox is cleared, AppCode will delete the tab characters and spaces.
|Indent multiline strings||If this checkbox is selected, the multiline strings will be indented.|
|Directives||Follow code indent: if the checkbox is selected, conditional compilation blocks will be indented to match the surrounding code.|
Indent children: if the checkbox is selected, the statements within conditional compilation blocks will be indented.
The option is available when the Follow code indent is selected.
Use this tab to specify where you want spaces in your code. To have AppCode automatically insert a space at a location, select the checkbox next to this location in the list. The results are displayed in the Preview pane.
Wrapping and braces
In this tab, customize the code style options, which AppCode will apply on reformatting the source code. The left-hand pane contains the list of exceptions (Keep when reformatting), and placement and alignment options for the various code constructs (lists, statements, operations, annotations, and so on) The right-hand pane shows preview.
Alignment takes precedence over indentation options.
Right Margin (columns)
Use the Hard wrap at field to specify a margin space required on the right side of an element. If you select Default option then a value of the right margin from the global settings is used.
Wrap on typing
Use the Wrap on typing settings to specify how the edited text is fitted in the specified Hard wrap at. You can select one the following options:
Default: in this case AppCode uses the Wrap on typing option that is specified in the global settings.
Yes: in this case AppCode uses the value specified in the Right Margin field.
No: in this case this option is switched off and a line can exceed the value specified in the right margin.
Use the Visual guides field to specify multiple right margins. You can leave a default value or enter the number of spaces for your margin. If you want to specify several margins, enter numbers separated by comma.
Keep when reformatting
Use the checkboxes to configure exceptions that AppCode will make when reformatting the source code. For example, by default, the Line breaks checkbox is selected. If your code contains lines that are shorter than a standard convention, you can convert them by disabling the Line breaks checkbox before you reformat the source code.
|Line breaks||If this option is selected, line breaks will be kept after reformatting the code. Otherwise, the lines that are shorter than a standard convention will be merged into one line.||Selected|
|Comment at first column||If this option is selected, comments placed at the first column won't change their position after reformatting the code. Otherwise, such comments will align with the next line of code.||Selected|
|Blocks and (trailing) closures in one line||If this option is selected, single-line blocks and trailing closures will be kept in one line after reformatting the code. Otherwise, they will expand into multiple lines.||Deselected|
|Methods and functions in one line||If this option is selected, single-line functions and methods will be kept in one line after reformatting the code. Otherwise, they will expand into multiple lines.||Deselected|
|Empty type declarations in one line||If this option is selected, empty type declarations will be kept in one line after reformatting the code. Otherwise, they will expand into multiple lines.||Deselected|
|Closure arguments in one line||If this option is selected, simple closure arguments in parentheses ||Selected|
The wrapping style applies to the various code constructs, specified in the left-hand pane (for example, method call arguments, or assignment statements).
From this list, select the desired wrapping style:
|Align when multiline||If this checkbox is selected, a code construct starts at the same column on each next line. Otherwise, the position of a code construct is determined by the current indentation level.|
|Align parenthesised when multiline||If this checkbox is selected, a parenthesised code construct starts at the column of the opening parenthesis each next line. Otherwise, the position of a code construct is determined by the current indentation level.|
|Align in columns|
If this checkbox is selected, the variables names, types and initializers are aligned in columns, each variable on next line, as in example:
var myName: String var myTitle: String var myOrderNumber: Int
var myName: String var myTitle: String var myOrderNumber: Int
|Select this checkbox to have the specified character or characters moved to the next line when the lines are wrapped.|
|'else' on new line||Use this checkbox to have the corresponding statements or characters moved to the next line.|
|New line after ||Select this checkbox to have the code after the specified character moved to a new line.|
|Special else if treatment|
If this checkbox is selected,
|Indent case branches|| If this checkbox is selected, the |
Braces placement options
|Braces placement style|
Use this list to specify the position of the opening brace in class declarations, method declarations, and other types of declarations. The available options are:
From this list, choose the braces introduction method for
Use this tab to define where and how many blank lines you want AppCode to retain and insert in your code after reformatting. For each type of location, specify the number of blank lines to be inserted. The results are displayed in the Preview pane.
|Keep Maximum Blank Lines||In this area, specify the number of blank lines to be kept after reformatting in the specified locations.|
|Minimum Blank Lines|
In the text boxes in this area, specify the number of blank lines to be present in the specified locations.
Use this tab to configure formatting options for generated code.
|Prefer Void over ()||Select this checkbox to have the |
|Prefer explicit return|
Select this checkbox to have the
If you want to get rid of explicit
|Line comment at first column||Select this checkbox to have generated line comments placed in the first column.|
|Add a space at comment start||Select this checkbox to have a space placed after |
This option is available only if the Line comment at first column checkbox is cleared.
|Block comment at first column||Select this checkbox to have generated block comments placed in the first column.|