Experimental patch for https://github.com/kristiandupont/kanel/issues/571

kanel.patch

diff --git a/build/generators/resolveType.js b/build/generators/resolveType.js
index c5f92edb607ed6d5a71b0485ce85134e82c487b3..7982b8e3bb9028509ee8ed01e9d3d25f2ea09b6f 100644
--- a/build/generators/resolveType.js
+++ b/build/generators/resolveType.js
@@ -45,7 +45,7 @@ const getColumnFromReference = (reference, schemas) => {
         return { column, details: target };
     }
 };
-const getTypeFromReferences = (c, config, visited = new Set()) => {
+const getTypeFromReferences = (c, config, visited) => {
     const references = c
         .references;
     const referencedTypes = references.map((reference) => {
@@ -54,10 +54,6 @@ const getTypeFromReferences = (c, config, visited = new Set()) => {
             console.warn("Could not resolve reference", reference);
             return "unknown";
         }
-        if (visited.has(column)) {
-            console.warn("Could not resolve circular reference", reference);
-            return "unknown";
-        }
         return resolveType(column, details, config, visited);
     });
     const seenTypeNames = new Set();
@@ -90,8 +86,17 @@ const getTypeFromReferences = (c, config, visited = new Set()) => {
         };
     }
 };
-const resolveType = (c, d, config, visited = new Set()) => {
-    visited.add(c);
+const resolveType = (c, d, config, visited = new Map()) => {
+  if (visited.has(c)) {
+    const { state, value } = visited.get(c);
+    if (state === "pending") {
+      console.warn("Circular reference detected", c);
+      return "unknown";
+    }
+    return value;
+  }
+  visited.set(c, { state: "pending", value: undefined });
+  const type = (() => {
     // 1) Check for a @type tag.
     const typeFromComment = resolveTypeFromComment(c.comment);
     if (typeFromComment) {
@@ -209,5 +214,8 @@ const resolveType = (c, d, config, visited = new Set()) => {
     // 7) If not found, set to unknown and print a warning.
     console.warn(`Could not resolve type ${c.type.fullName} referenced in ${d.schemaName}.${c.name}`);
     return "unknown";
+  })();
+  visited.set(c, { state: "resolved", value: type });
+  return type;
 };
 exports.default = resolveType;