AppCode 2017.2 Help

Code Style. Swift


Use this page to configure formatting options for Swift files. View the result in the Preview pane on the right.

On this page:

Set from...

Click this link to reveal the list of languages to be used as the base for the current language code style. So doing, 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

ItemDescription
Use tab character
  • If this check box is selected, tab characters are used:
    • On pressing the key
    • For indentation
    • For code reformatting
  • When the check box is cleared, AppCode uses spaces instead of tabs.
Smart tabs
  • If this check box is selected, the part of indentation defined by the nesting of code blocks, is made of the tabs and (if necessary) spaces, while the part of indentation defined by the alignment is made only of spaces.
  • If this check box is cleared, only tabs are used. This means that a group of spaces that fits the specified tab size is automatically replaced with a tab, which may result in breaking fine alignment.

The Smart Tabs check box is available if the Use Tab Character check box is selected.

Tab sizeIn this text box, specify the number of spaces included in a tab.
IndentIn this text box, specify the number of spaces (or tabs if the Use Tab Character check box is selected) to be inserted for each indent level.
Continuation indentIn this text box, specify the number of spaces (or tabs if the Use Tab Character check box is selected) to be inserted between the elements of an array, in expressions, method declarations and method calls.
Keep indents on empty linesIf this check box is selected, then AppCode will keep indents on the empty lines as if they contained some code.
If this check box is not selected, AppCode will delete the tab characters and spaces.

Spaces

Use this tab to specify where you want spaces in your code. To have AppCode automatically insert a space at a location, select the check box 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, etc.) The right-hand pane shows preview.

Alignment takes precedence over indentation options.

Right Margin (columns)

Use Right Margin 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 Wrap on typing settings to specify how the edited text is fitted in the specified Right margin. 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.

Keep when reformatting

Use the check boxes to configure exceptions that AppCode will make when reformatting the source code. For example, by default, the Line breaks check box is selected. If your code contains lines that are shorter than a standard convention, you can convert them by disabling the Line breaks check box before you reformat the source code.

Wrapping options

ItemDescription
Wrapping style Wrap after modifier list: wrap the modifier list on next line, indent as the first modifier character.

Alignment options

ItemDescription
Align when multilineIf this check box 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 multilineIf this check box 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 check box is selected, the variables names, types and initializers are aligned in columns, each variable on next line, as in example:

Before

var myName: String var myTitle: String var myOrderNumber: Int

After

var myName: String var myTitle: String var myOrderNumber: Int
'else' on new lineUse this check box to have the corresponding statements or characters moved to the next line.
Special else if treatmentIf this check box is selected, else if statements are located in the same line.

Otherwise, else if statements are moved to the next line to the corresponding indent level.

Indent case branches If this check box is selected, the case statement is located at the corresponding indent level. Otherwise, case statement is placed at the same indent level with switch.

Braces placement options

ItemDescription
Braces placement style Use this drop-down list to specify the position of the opening brace in class declarations, method declarations, and other types of declarations. The available options are:
  • End of line - select this option to have the opening brace placed at the declaration line end.
  • Next line if wrapped - select this option to have the opening brace placed at the beginning of the line after the multiline declaration line.
  • Next line - select this option to have the opening brace placed at the beginning of the line after the declaration line.
  • Next line shifted - select this option to have the opening brace placed at the line after the declaration line being shifted to the corresponding indent level.
  • Next line each shifted - select this option to have the opening brace placed at the line after the declaration line being shifted to the corresponding indent level, and have the next line shifted to the next indent level as well.

Blank lines

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.

ItemDescription
Keep Maximum Blank LinesIn this area, specify the number of blank lines to be kept after reformatting in the specified locations.
Minimum Blank LinesIn the text boxes in this area, specify the number of blank lines to be present in the specified locations.
Last modified: 26 July 2017