Fix cycles during generating (fix #376, fix #323)

test/e2e/refWithCycle.5.ts

@@ -0,0 +1,11 @@
+export const only = true
+
+// Cycle in referenced schema
+// @see https://github.com/bcherny/json-schema-to-typescript/issues/376
+export const input = {
+  $schema: 'http://json-schema.org/draft-07/schema#',
+  type: 'object',
+  properties: {
+    owner: {$ref: 'test/resources/Person.json'}
+  }
+}

test/resources/MultiSchema/foo/bar/out/a.d.ts

@@ -0,0 +1,11 @@
+/* tslint:disable */
+/**
+ * This file was automatically generated by json-schema-to-typescript.
+ * DO NOT MODIFY IT BY HAND. Instead, modify the source JSONSchema file,
+ * and run json-schema-to-typescript to regenerate this file.
+ */
+
+export interface ASchema {
+  f: string;
+  g?: number;
+}

test/resources/MultiSchema/foo/bar/out/b.d.ts

@@ -0,0 +1,12 @@
+/* tslint:disable */
+/**
+ * This file was automatically generated by json-schema-to-typescript.
+ * DO NOT MODIFY IT BY HAND. Instead, modify the source JSONSchema file,
+ * and run json-schema-to-typescript to regenerate this file.
+ */
+
+export interface BSchema {
+  x?: string;
+  y: number;
+  [k: string]: unknown;
+}

test/resources/Person.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "type": "object",
+  "properties": {
+    "name": {
+      "type": "string"
+    },
+    "children": {
+      "$ref": "#"
+    }
+  }
+}