# `Statifier.Machine.Content.Log`
[🔗](https://github.com/riddler/statifier-ex/blob/v2.0.0/lib/statifier/machine/content/log.ex#L1)

A compiled `<log>` executable-content node (spec 4.7) - the interned
counterpart to `Statifier.Document.Log`. `label` is the optional
diagnostic label; `expr` is the optional `Machine.expr()` to evaluate and
log; `expr_location` is `attribute_locations[:expr]`'s value span, `nil`
when `expr` was never written.

Its `Statifier.ExecutableContent` implementation lives right below the
struct: this file is the whole node, top to bottom, with no dispatcher
anywhere else in the tree.

# `t`

```elixir
@type t() :: %Statifier.Machine.Content.Log{
  c_index: non_neg_integer(),
  expr: Statifier.Machine.expr() | nil,
  expr_location: Statifier.Parser.Location.t() | nil,
  label: String.t() | nil,
  location: Statifier.Parser.Location.t()
}
```

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