Method hint

datafusion-cli/src/helper.rs:136–142

(&self, line: &str, _pos: usize, _ctx: &Context<'_>)

    type Hint = String;

    fn hint(&self, line: &str, _pos: usize, _ctx: &Context<'_>) -> Option<String> {
        if !line.is_empty() {
            self.show_hint.set(false);
        }
        (self.show_hint.get() && line.trim().is_empty())
            .then(|| DEFAULT_HINT_SUGGESTION.to_owned())
    }
}

/// returns true if the current position is after the open quote for