trie: implement clone() method (#852)

* Add Clone() for StringMap * Fix for std::string addition * trie: broken return key. * clonetrie: correct handle leakage. Co-authored-by: Kyle Sanderson <[email protected]>
2020-07-14 20:11:23 -07:00
parent b8ae4e617b
commit 5fa25e70ad
3 changed files with 60 additions and 1 deletions
@@ -52,6 +52,14 @@ methodmap StringMap < Handle
 	// The StringMap must be freed via delete or CloseHandle().
 	public native StringMap();

+	// Clones a string map, returning a new handle with the same size and data.
+	// This should NOT be confused with CloneHandle. This is a completely new
+	// handle with the same data but no relation to the original. It should be
+	// closed when no longer needed with delete or CloseHandle().
+	//
+	// @return              New handle to the cloned string map
+	public native StringMap Clone();
+
 	// Sets a value in a hash map, either inserting a new entry or replacing an old one.
 	//
 	// @param key        Key string.