# `Feel.Analysis.QuotedNames`
[🔗](https://github.com/FeeJai/BDM/blob/feel-v0.1.0/apps/feel/lib/feel/analysis/quoted_names.ex#L1)

The report of the names that were written in backticks (D-81).

A name in backticks, `` `first name` ``, is accepted whatever the dialect of DMN 1.6 says and whichever
names are in scope: the lexer checks that what is in them is a name in its canonical form
(`Feel.Syntax.Lexer`), so it is the name it would be without them. It is not FEEL as DMN 1.6 writes it,
though, and a model that uses it is one that an engine which follows only the specification does not accept.
So it is said, as an `:info` (D-46), **once for the expression**, at the first one, with all the names in
`details.names`. The code is `:quoted_name`: a caller that wants plain DMN 1.6 treats a diagnostic with that
code as an error, which is all the switch there is.

The parser marks a name, or the path that ends in one, with `quoted: span` in its metadata, the span of
what was in backticks (`Feel.AST`); this reads the syntax tree and so does not depend on what the names
resolve to.

    iex> {:ok, ast} = Feel.parse("`first name` + `tracking-id`")
    iex> [info] = Feel.Analysis.QuotedNames.diagnostics(ast)
    iex> {info.code, info.severity, info.span, info.details.names}
    {:quoted_name, :info, {0, 12}, ["first name", "tracking-id"]}
    iex> {:ok, ast} = Feel.parse("price + 1")
    iex> Feel.Analysis.QuotedNames.diagnostics(ast)
    []

# `diagnostics`

```elixir
@spec diagnostics(Feel.AST.t()) :: [Feel.Diagnostic.t()]
```

Returns the diagnostic for the names in backticks of a syntax tree: none if there are none, else one, at the
first.

---

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