Merge pull request #2655 from ahoppen/6.0/framework-agnostic-tests

[6.0] Implement a version of `SwiftSyntaxMacrosTestsSupport` that is framework agnostic

Author: ahoppen

Package.swift

@@ -27,6 +27,10 @@ let package = Package(
     .library(name: "SwiftSyntaxMacros", targets: ["SwiftSyntaxMacros"]),
     .library(name: "SwiftSyntaxMacroExpansion", targets: ["SwiftSyntaxMacroExpansion"]),
     .library(name: "SwiftSyntaxMacrosTestSupport", targets: ["SwiftSyntaxMacrosTestSupport"]),
+    .library(
+      name: "SwiftSyntaxMacrosGenericTestSupport",
+      targets: ["SwiftSyntaxMacrosGenericTestSupport"]
+    ),
   ],
   targets: [
     // MARK: - Internal helper targets
@@ -40,7 +44,18 @@ let package = Package(
 
     .target(
       name: "_SwiftSyntaxTestSupport",
-      dependencies: ["SwiftBasicFormat", "SwiftSyntax", "SwiftSyntaxBuilder", "SwiftSyntaxMacroExpansion"]
+      dependencies: [
+        "_SwiftSyntaxGenericTestSupport",
+        "SwiftBasicFormat",
+        "SwiftSyntax",
+        "SwiftSyntaxBuilder",
+        "SwiftSyntaxMacroExpansion",
+      ]
+    ),
+
+    .target(
+      name: "_SwiftSyntaxGenericTestSupport",
+      dependencies: []
     ),
 
     .testTarget(
@@ -207,7 +222,19 @@ let package = Package(
     .target(
       name: "SwiftSyntaxMacrosTestSupport",
       dependencies: [
-        "_SwiftSyntaxTestSupport",
+        "SwiftSyntax",
+        "SwiftSyntaxMacroExpansion",
+        "SwiftSyntaxMacros",
+        "SwiftSyntaxMacrosGenericTestSupport",
+      ]
+    ),
+
+    // MARK: SwiftSyntaxMacrosGenericTestSupport
+
+    .target(
+      name: "SwiftSyntaxMacrosGenericTestSupport",
+      dependencies: [
+        "_SwiftSyntaxGenericTestSupport",
         "SwiftDiagnostics",
         "SwiftIDEUtils",
         "SwiftParser",

Release Notes/600.md

@@ -91,6 +91,10 @@
   - Description: `SyntaxIdentifier.indexInTree` allows the retrieval of a `SyntaxIdentifier` that identifies the syntax node independent of the syntax tree. `SyntaxIdentifier.fromIndexInTree` allows the creation for a `SyntaxIdentifier` from a tree-agnostic `SyntaxIdentifier.IndexInTree` and the tree's root node.
   - Pull request: https://github.com/apple/swift-syntax/pull/2594
 
+- `SwiftSyntaxMacrosGenericTestSupport`
+  - Description: A version of the `SwiftSyntaxMacrosTestSupport` module that doesn't depend on `Foundation` or `XCTest` and can thus be used to write macro tests using `swift-testing`. Since swift-syntax can't depend on swift-testing (which would incur a circular dependency since swift-testing depends on swift-syntax), users need to manually specify a failure handler like the following, that fails the swift-testing test: `Issue.record("\($0.message)", fileID: $0.location.fileID, filePath: $0.location.filePath, line: $0.location.line, column: $0.location.column)`
+  - Pull request: https://github.com/apple/swift-syntax/pull/2647
+
 ## API Behavior Changes
 
 ## Deprecations