Fix stack overflow for self-nested pymap.

hs-lsong · hs-lsong · commit 33c3e328aeb7 · 2022-12-09T13:30:05.000-05:00
diff --git a/src/main/java/com/hubspot/jinjava/objects/collections/PyMap.java b/src/main/java/com/hubspot/jinjava/objects/collections/PyMap.java
@@ -58,4 +58,15 @@ public void putAll(Map<? extends String, ? extends Object> m) {
     }
     super.putAll(m);
   }
+
+  @Override
+  public int hashCode() {
+    int h = 0;
+    for (Entry<String, Object> entry : map.entrySet()) {
+      if (entry.getValue() != map && entry.getValue() != this) {
+        h += entry.hashCode();
+      }
+    }
+    return h;
+  }
 }

Original file line number	Diff line number	Diff line change
`@@ -58,4 +58,15 @@ public void putAll(Map<? extends String, ? extends Object> m) {`
`58`	`58`	`}`
`59`	`59`	`super.putAll(m);`
`60`	`60`	`}`
	`61`	`+`
	`62`	`+ @Override`
	`63`	`+ public int hashCode() {`
	`64`	`+ int h = 0;`
	`65`	`+ for (Entry<String, Object> entry : map.entrySet()) {`
	`66`	`+ if (entry.getValue() != map && entry.getValue() != this) {`
	`67`	`+ h += entry.hashCode();`
	`68`	`+ }`
	`69`	`+ }`
	`70`	`+ return h;`
	`71`	`+ }`
`61`	`72`	`}`