show arguments as dictionary with names, not as array

src/calltree.js

@@ -300,25 +300,39 @@ const jump_calltree_node = (_state, _current_calltree_node) => {
     with_location.active_calltree_node.id,
   )
 
-  return {...with_selected_calltree_node,
+  let value_explorer
-    value_explorer: next.current_calltree_node.toplevel
+
-      ? null
+  if(next.current_calltree_node.toplevel) {
-      : {
+    value_explorer = null
+  } else {
+
+    const args = show_body
+      ? active_frame(with_selected_calltree_node)
+        // function args node
+        .children[0]
+        .result
+        .value
+      : current_calltree_node.args
+
+    value_explorer = {
       index: loc.index,
       result: {
         ok: true,
         value: current_calltree_node.ok
           ?  {
-                '*arguments*': current_calltree_node.args,
+            '*arguments*': args,
             '*return*': current_calltree_node.value,
           }
           : {
-                '*arguments*': current_calltree_node.args,
+            '*arguments*': args,
             '*throws*': current_calltree_node.error,
           }
       }
-        },
+    }
+  }
 
+  return {...with_selected_calltree_node, 
+    value_explorer,
     selection_state: show_body
       ? null
       : {node: callsite_node}

test/test.js

@@ -2120,6 +2120,18 @@ const y = x()`
     assert_equal(map_expanded.children.length, 3)
   }),
 
+  test('value_explorer arguments', () => {
+    const i = test_initial_state(`
+      function foo(x, {y}) {
+      }
+
+      foo(1, {y: 2})
+    `)
+    const expanded = COMMANDS.calltree.click(i, root_calltree_node(i).children[0].id)
+    const args = expanded.value_explorer.result.value['*arguments*']
+    assert_equal(args, {x: 1, y: 2})
+  }),
+
   test('click native calltree node', () => {
     const s = test_initial_state(`Object.fromEntries([])`)
     const index = 0 // Where call starts