fix(openapi-typescript):transformSchemaObject support two-dimensional… (#1489)

* fix(openapi-typescript):transformSchemaObject support two-dimensional array

* chore(openapi-typescript): format prettier

Author: liangskyli

packages/openapi-typescript/src/transform/schema-object.ts

@@ -302,7 +302,16 @@ function transformSchemaObjectCore(
       }
       // standard array type
       else if (schemaObject.items) {
-        itemType = transformSchemaObject(schemaObject.items, options);
+        if (
+          "type" in schemaObject.items &&
+          schemaObject.items.type === "array"
+        ) {
+          itemType = ts.factory.createArrayTypeNode(
+            transformSchemaObject(schemaObject.items, options),
+          );
+        } else {
+          itemType = transformSchemaObject(schemaObject.items, options);
+        }
       }
 
       const min: number =
@@ -350,9 +359,9 @@ function transformSchemaObjectCore(
         }
       }
 
-      return ts.isTupleTypeNode(itemType)
+      return ts.isTupleTypeNode(itemType) || ts.isArrayTypeNode(itemType)
         ? itemType
-        : ts.factory.createArrayTypeNode(itemType); // wrap itemType in array type, but only if not a tuple already
+        : ts.factory.createArrayTypeNode(itemType); // wrap itemType in array type, but only if not a tuple or array already
     }
 
     // polymorphic, or 3.1 nullable

packages/openapi-typescript/test/transform/schema-object/object.test.ts

@@ -337,6 +337,42 @@ describe("transformSchemaObject > object", () => {
         },
       },
     ],
+    [
+      "options > two-dimensional array",
+      {
+        given: {
+          type: "object",
+          properties: {
+            array: {
+              type: "array",
+              items: {
+                items: [
+                  {
+                    type: "string",
+                  },
+                  {
+                    type: "boolean",
+                  },
+                ],
+                type: "array",
+                maxItems: 2,
+                minItems: 2,
+              },
+            },
+          },
+        },
+        want: `{
+    array?: [
+        string,
+        boolean
+    ][];
+}`,
+        options: {
+          ...DEFAULT_OPTIONS,
+          ctx: { ...DEFAULT_OPTIONS.ctx },
+        },
+      },
+    ],
   ];
 
   for (const [