Update rule for long function declarations to specify effects (async, throws) should be written on the line after the closing paren (#205)

Author: calda

Package.swift

@@ -38,8 +38,8 @@ let package = Package(
 
     .binaryTarget(
       name: "SwiftFormat",
-      url: "https://github.com/calda/SwiftFormat/releases/download/0.51-beta-3/SwiftFormat.artifactbundle.zip",
-      checksum: "4b0516d911258b55c3960949f4a516a246f35a1dc7647a6440c66e1f1fe1a32e"),
+      url: "https://github.com/calda/SwiftFormat/releases/download/0.51-beta-6/SwiftFormat.artifactbundle.zip",
+      checksum: "8583456d892c99f970787b4ed756a7e0c83a0d9645e923bb4dae10d581c59bc3"),
 
     .binaryTarget(
       name: "SwiftLintBinary",

README.md

@@ -1152,7 +1152,7 @@ _You can enable the following settings in Xcode by running [this script](resourc
 
   </details>
 
-* <a id='long-function-declaration'></a>(<a href='#long-function-declaration'>link</a>) **Separate [long](https://github.com/airbnb/swift#column-width) function declarations with line breaks before each argument label and before the return signature.** Put the open curly brace on the next line so the first executable line doesn't look like it's another parameter. [![SwiftFormat: wrapArguments](https://img.shields.io/badge/SwiftFormat-wrapArguments-7B0051.svg)](https://github.com/nicklockwood/SwiftFormat/blob/master/Rules.md#wrapArguments) [![SwiftFormat: braces](https://img.shields.io/badge/SwiftFormat-braces-7B0051.svg)](https://github.com/nicklockwood/SwiftFormat/blob/master/Rules.md#braces)
+* <a id='long-function-declaration'></a>(<a href='#long-function-declaration'>link</a>) **Separate [long](https://github.com/airbnb/swift#column-width) function declarations with line breaks before each argument label, and before the return signature or any effects (`async`, `throws`).** Put the open curly brace on the next line so the first executable line doesn't look like it's another parameter. [![SwiftFormat: wrapArguments](https://img.shields.io/badge/SwiftFormat-wrapArguments-7B0051.svg)](https://github.com/nicklockwood/SwiftFormat/blob/master/Rules.md#wrapArguments) [![SwiftFormat: braces](https://img.shields.io/badge/SwiftFormat-braces-7B0051.svg)](https://github.com/nicklockwood/SwiftFormat/blob/master/Rules.md#braces)
 
   <details>
 
@@ -1192,6 +1192,17 @@ _You can enable the following settings in Xcode by running [this script](resourc
       populateUniverse() // this line blends in with the argument list
     }
 
+    // WRONG
+    func generateStars(
+      at location: Point,
+      count: Int,
+      color: StarColor,
+      withAverageDistance averageDistance: Float) async throws // these effects are easy to miss since they're visually associated with the last parameter
+      -> String 
+    {
+      populateUniverse()
+    }
+
     // RIGHT
     func generateStars(
       at location: Point,
@@ -1209,7 +1220,7 @@ _You can enable the following settings in Xcode by running [this script](resourc
       count: Int,
       color: StarColor,
       withAverageDistance averageDistance: Float)
-      throws -> String
+      async throws -> String
     {
       populateUniverse()
     }

Sources/AirbnbSwiftFormatTool/airbnb.swiftformat

@@ -12,6 +12,7 @@
 --wrapcollections before-first # wrapArguments
 --wrapconditions before-first # wrapArguments
 --wrapreturntype if-multiline #wrapArguments
+--wrapeffects if-multiline #wrapArguments
 --closingparen same-line # wrapArguments
 --wraptypealiases before-first # wrapArguments
 --funcattributes prev-line # wrapAttributes