Test inlay hints for fields

Author: fwcd

Sources/SourceKitLSP/Swift/SwiftLanguageServer.swift

@@ -1070,7 +1070,7 @@ extension SwiftLanguageServer {
       do {
         func bindings(_ symbols: [DocumentSymbol]) -> [DocumentSymbol] {
           symbols
-            .flatMap { bindings($0.children ?? []) + ($0.kind == .variable ? [$0] : []) }
+            .flatMap { bindings($0.children ?? []) + ([.variable, .field, .property].contains($0.kind) ? [$0] : []) }
         }
 
         let symbols = try symbolsResult.get()

Tests/SourceKitLSPTests/InlayHintsTests.swift

@@ -110,4 +110,50 @@ final class InlayHintsTests: XCTestCase {
       )
     ])
   }
+
+  func testFields() {
+    let text = """
+    class X {
+      let instanceMember = 3
+      static let staticMember = "abc"
+    }
+
+    struct Y {
+      var instanceMember = "def" + "ghi"
+      static let staticMember = 1 + 2
+    }
+
+    enum Z {
+      static let staticMember = 3.0
+    }
+    """
+    let hints = performInlayHintsRequest(text: text)
+    XCTAssertEqual(hints, [
+      InlayHint(
+        position: Position(line: 1, utf16index: 24),
+        category: .type,
+        label: "Int"
+      ),
+      InlayHint(
+        position: Position(line: 2, utf16index: 33),
+        category: .type,
+        label: "String"
+      ),
+      InlayHint(
+        position: Position(line: 6, utf16index: 36),
+        category: .type,
+        label: "String"
+      ),
+      InlayHint(
+        position: Position(line: 7, utf16index: 33),
+        category: .type,
+        label: "Int"
+      ),
+      InlayHint(
+        position: Position(line: 11, utf16index: 31),
+        category: .type,
+        label: "Double"
+      ),
+    ])
+  }
 }

Tests/SourceKitLSPTests/XCTestManifests.swift

@@ -96,6 +96,7 @@ extension InlayHintsTests {
     static let __allTests__InlayHintsTests = [
         ("testBindings", testBindings),
         ("testEmpty", testEmpty),
+        ("testFields", testFields),
         ("testRanged", testRanged),
     ]
 }