Update SyntaxTree.swift

phlegmaticprogrammer · Jul 26, 2021 · 6df3914 · 6df3914
1 parent d02e783
commit 6df3914
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Sources/ParsingKit/SyntaxTree.swift b/Sources/ParsingKit/SyntaxTree.swift
@@ -51,6 +51,10 @@ public final class SyntaxTree : Hashable {
         })
     }
 
+    subscript (_ index : Int) -> SyntaxTree {
+        return children[index]
+    }
+
     public func explode() -> Set<SyntaxTree> {
         var trees : Set<SyntaxTree> = []
         for i in 0 ..< countCases {