From b39bcd9a0cc742b158504b0ce9a03b15c3e13849 Mon Sep 17 00:00:00 2001
From: Tom Hvitved <hvitved@github.com>
Date: Wed, 11 Nov 2026 12:26:39 +0100
Subject: [PATCH] Unified: Populate `external_name_node` for enum case
 parameters

---
 unified/extractor/src/languages/swift/swift.rs              | 5 ++++-
 .../corpus/swift/types/enum-with-associated-values.output   | 6 ++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/unified/extractor/src/languages/swift/swift.rs b/unified/extractor/src/languages/swift/swift.rs
index 4599cc79f62f..db66b121af17 100644
--- a/unified/extractor/src/languages/swift/swift.rs
+++ b/unified/extractor/src/languages/swift/swift.rs
@@ -518,7 +518,10 @@ fn translation_rules() -> Vec<Rule<SwiftContext>> {
         rule!(
             (enumCaseParameter firstName: _? @@name type: @ty)
             =>
-            (parameter pattern: [(identifier #{name})] type: {ty})
+            (parameter
+                external_name_node: [(identifier #{name})]
+                pattern: [(identifier #{name})]
+                type: {ty})
         ),
         // An enum element with associated values (`case circle(radius: Double)`)
         // becomes a nested `class_like_declaration` whose constructor carries the
diff --git a/unified/extractor/tests/corpus/swift/types/enum-with-associated-values.output b/unified/extractor/tests/corpus/swift/types/enum-with-associated-values.output
index 655bc8e33040..81b0b893eedd 100644
--- a/unified/extractor/tests/corpus/swift/types/enum-with-associated-values.output
+++ b/unified/extractor/tests/corpus/swift/types/enum-with-associated-values.output
@@ -79,7 +79,8 @@ top_level source="⟨body⟩"
               member:
                 constructor_declaration source="circle(⟨parameter⟩)"
                   parameter:
-                    parameter source="⟨pattern⟩: ⟨type⟩"
+                    parameter source="⟨external_name_node⟩⟨pattern⟩: ⟨type⟩"
+                      external_name_node: identifier "radius" source="radius"
                       type: identifier "Double" source="Double"
                       pattern: identifier "radius" source="radius"
                   body: block source=""
@@ -89,7 +90,8 @@ top_level source="⟨body⟩"
               member:
                 constructor_declaration source="square(⟨parameter⟩)"
                   parameter:
-                    parameter source="⟨pattern⟩: ⟨type⟩"
+                    parameter source="⟨external_name_node⟩⟨pattern⟩: ⟨type⟩"
+                      external_name_node: identifier "side" source="side"
                       type: identifier "Double" source="Double"
                       pattern: identifier "side" source="side"
                   body: block source=""