[typer] Reuse PolyType objects

2025-11-01 09:12:30 +00:00 · 2022-12-20 13:38:08 +00:00
parent 2c3e572566
commit 6f06b0e08a
1 changed files with 8 additions and 5 deletions
@@ -317,12 +317,15 @@ class Unifier {
      objectType.kind === "Object" &&
      objectType.properties.has(name[0])
    ) {
-      const newType: Type = {
-        kind: "Poly",
-      };
+      let type = objectType.properties.get(name[0])!;
+      if (type.kind === "Poly") {
+        return type;
+      }

-      objectType.properties.set(name[0], newType);
-      return newType;
+      type = { kind: "Poly" };
+
+      objectType.properties.set(name[0], type);
+      return type;
    }

    return null;