For example, if `CGFloat` is used in a file where only `UIKit` is imported but not `CoreGraphics`, this will be a violation even if the file previously compiled.
This is because Swift allows referencing some declarations that are only transitively imported.
Enabling the `require_explicit_imports` configuration option will require that the module of every declaration referenced in a source file be explicitly imported.
This will add significant noise to the imports list, but has a few advantages:
1. It will be easier to understand all the dependencies explicitly referenced in a source file.
2. Correcting the `unused_import` rule will no longer introduce compilation errors in files that compiled prior to the correction.
If missing imports are added to a file when correcting it, the `sorted_imports` rule will be automatically run on that file.
If you with to allow some imports to be implicitly importable transitively, you may specify the `allowed_transitive_imports` configuration:
```yaml
unused_import:
require_explicit_imports: true
allowed_transitive_imports:
- module: Foundation
allowed_transitive_imports:
- CoreFoundation
- Darwin
- ObjectiveC
```
The MIT license doesn't require that all files be prepended with this
licensing or copyright information. Realm confirmed that they're ok with this
change. This will enable some companies to contribute to SwiftLint and the
date & authorship information will remain accessible via git source control.
JP Simard
Marcelo Fabri
Marcelo Fabri
Norio Nomura
Scott Hoyt