Raise error if function has duplicate argument names (#427)

nojanath · Jan 9, 2024 · f0d7319 · f0d7319
1 parent bcfe186
commit f0d7319
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/compiler/ksp_compiler.py b/compiler/ksp_compiler.py
@@ -903,6 +903,10 @@ def modifyFunctionDef(self, node, parent_function = None, function_params = None
         # as we visit the function definition, pass along information to nodes further down the tree of the function parameter names
         params = function_params + node.parameters
 
+        # verify that there are no duplicate argument names in the function definition
+        if len(set(params)) < len(params):
+            raise ksp_ast.ParseException(node, "Function contains duplicate argument names!")
+
         if node.return_value:
             params.append(node.return_value.identifier)