# `Ichor.Node`
[🔗](https://github.com/joetjen/ichor_runtime/blob/v0.2.0/lib/ichor/node.ex#L1)

The default-fallback shape `Ichor.Actions` builds for a matched rule
that has more than one meaningful capture (a rule with exactly one
capture passes that capture's own value straight through instead):
`rule` names the matched rule, `captures` maps each capture name to its
already-evaluated value (or a list of values, for a name captured more
than once -- e.g. inside a `*`), and `span` locates the whole match
back in the original input.

# `source_span`

```elixir
@type source_span() ::
  {line :: pos_integer(), column :: pos_integer(), length :: non_neg_integer()}
```

Mirrors `Grammar.IR.Meta.source_span/0` (dev-only, in `ichor` proper): 1-based line, 1-based column, match length.

# `t`

```elixir
@type t() :: %Ichor.Node{
  captures: %{optional(atom()) => term() | [term()]},
  rule: atom(),
  span: source_span() | nil
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*