C# Auto Parens
Adds () automatically when you accept a method from the C# completion list, like Rider does. It leaves them out when the method is used as a value rather than called.
player.TakeDamage // accept "TakeDamage" with Enter/Tab
player.TakeDamage(|) // parameter hints open with the cursor inside
player.Jump // method without parameters
player.Jump()| // the cursor skips past the parentheses
When parentheses are not added
| Situation |
Example |
The argument expects a delegate (Action, Func, Predicate, UnityAction, EventHandler, *Callback, *Delegate, *Handler…) |
button.onClick.AddListener(OnClick) |
| Event subscription |
OnDeath += HandleDeath |
Inside nameof() |
nameof(Update) |
Already followed by ( or < |
Foo|(1, 2) |
| Inside a comment |
// call Foo |
| The accepted item is not a method (property, field, type…) |
transform.position |
How it works
The extension takes over Enter and Tab while the suggestion list is open in a C# file. It first accepts the suggestion as usual, then:
- Asks the completion provider whether the accepted word is a method.
- Asks the signature help provider whether the current argument is a delegate type.
- If it should be a call, types
(, so VS Code auto-closes it and shows parameter hints. If no overload takes parameters, the cursor moves past ).
The C# Auto Parens output channel logs each decision, for troubleshooting.
Requirements
A C# language extension that provides completions and signature help, such as C# or C# Dev Kit.
- C# Auto Suggest: opens the completion list as soon as you start typing an identifier.
- C# Smart Semicolon: typing
; inside parentheses moves it to the end of the line.
Development
npm install
npm test # compile, then run the unit and integration tests
npm run package # build the .vsix
The integration tests download a separate copy of VS Code into .vscode-test/ and run inside it.
Press F5 in VS Code to launch an Extension Development Host.
License
MIT
