pub fn autocomplete(
world: &dyn World,
document: Option<&Document>,
source: &Source,
cursor: usize,
explicit: bool,
) -> Option<(usize, Vec<Completion>)>Expand description
Autocomplete a cursor position in a source file.
Returns the position from which the completions apply and a list of completions.
When explicit is true, the user requested the completion by pressing
control and space or something similar.
Passing a document (from a previous compilation) is optional, but enhances
the autocompletions. Label completions, for instance, are only generated
when the document is available.