The dartfix
tool is a command-line interface for making automated updates to your Dart code. The tool isn‘t in the Dart SDK; instead, it’s distributed in the dartfix
package.
Important: Save a copy of your source code before making changes with
dartfix
. Unlike dartfmt, which makes only safe changes (usually to whitespace),dartfix
can make changes that you might need to undo or modify.
Before you can use the dartfix
tool, you need to install it, as described below. Then invoke it with the name of the directory that you want to update. When you're ready to make the suggested changes, add the --overwrite
option.
$ dartfix examples/misc ... summary of recommended changes ... $ dartfix examples/misc --overwrite
As of release 0.1.3, dartfix
can make the following changes to your code:
Convert code to use the following features added to Dart in 2.1:
mixin
keyword instead of class
.double
literals that end in .0
, and remove the .0
.Move named constructor type arguments from the name to the type.
For example, given class A<T> { A.from(Object obj) { } }
, dartfix
changes constructor invocations in the following way:
Original code: A.from<String>(anObject) // Invokes the `A.from` named constructor. Code produced by dartfix: A<String>.from(anObject) // Same, but the type is directly after `A`.
The easiest way to use dartfix
is to globally install it, so that it can be in your path:
$ pub global activate dartfix
Use the same command to update dartfix
. We recommend updating dartfix
whenever you update your Dart SDK or when a new feature is released.
If you want a new fix, first look at dartfix issues and star the fixes you want. If no issue exists for the fix, create a GitHub issue.