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psalm/docs/manipulating_code/refactoring_code.md
Matthew Brown 7a1a728cee Move docs into subfolders
2019-06-09 00:54:13 -04:00

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Refactoring Code

Sometimes you want to make big changes to your codebase like moving methods or classes.

Psalm has a refactoring tool you can access with either vendor/bin/psalm-refactor or vendor/bin/psalm --refactor, followed by appropriate commands.

Moving classes between namespaces

vendor/bin/psalm-refactor --move "Ns1\Foo" --into "Ns2" tells Psalm to move class Ns1\Foo into the namespace Ns2, so any reference to Ns1\Foo becomes Ns2\Foo).

Moving and renaming classes

vendor/bin/psalm-refactor --rename "Ns1\Foo" --to "Ns2\Bar\Baz" tells Psalm to move class Ns1\Foo into the namespace Ns2\Bar and rename it to Baz, so any reference to Ns1\Foo becomes Ns2\Bar\Baz).

Moving methods between classes

vendor/bin/psalm-refactor --move "Ns1\Foo::bar" --into "Ns2\Baz" tells Psalm to move a method named bar inside Ns1\Foo into the class Ns2\Baz, so any reference to Ns1\Foo::bar becomes Ns2\Baz::bar). Psalm currently allows you to move static methods between aribitrary classes, and instance methods into child classes of that instance.

Moving and renaming methods

vendor/bin/psalm-refactor --rename "Ns1\Foo::bar" --to "Ns2\Baz::bat" tells Psalm to move method Ns1\Foo::bar into the class Ns2\Baz and rename it to bat, so any reference to Ns1\Foo::bar becomes Ns2\Baz::bat).