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#Debug Dump UI
The `int_debug_dump_ui` dumps the view-controller, view, and spot hierarchy. This is used in viewers like the *Seagull* client. This is a very expensive
message as it sends back a `if_event` with the name `debug_dump_ui_res` and the address `-333` with a very large payload of many embedded hashes.
##Hash linked list
The payload returned in `int_debug_dump_ui` is a *linked* list of sorts; There is a basic type of node that looks like:
```js
Node {
children: [Node],
type: "$node_class"
}
```
Ontop of the base node, the type defines a child class of the node:
* `vc` - View Controller
* `name` - The name of the view controller (human friendly)
* `action` - Current action name (human friendly)
* `ptr` - The base pointer of this view controller
* `view` - View
* `name` - The name of the view
* `ptr` - The pointer to the view
* `spot` - Spot inside a view controller's root view
* `name` - The name of the spot
* `ptr` - The pointer of this spot location
Note that all view controllers have one `main` spot, this is actually just the `view` (Every view has a view controller, and vice versa). So technically,
the spots beyond the `main` spot are actually children of the view managed by the view controller.
Another way to say that is that all `vc`'s will have one child and it will be a view.'
Example payload:
```ruby
{
type: "spot",
name: "root",
ptr: 0,
children: [
{
name: "dashboard"
type: "vc",
action: "index",
view: "dashboard",
ptr: 2,
children: [
{
type: "view",
name: "container (main)",
ptr: 3
children: [
{
type: "spot",
name: "content",
ptr: 4,
children: []
}
]
}
]
}
]
}
```
Version data entries
16 entries across 16 versions & 1 rubygems