rust-analyzer/crates/completion/src/completions.rs

pub(crate) mod attribute;
pub(crate) mod dot;
pub(crate) mod record;
pub(crate) mod pattern;
pub(crate) mod fn_param;
pub(crate) mod keyword;
pub(crate) mod snippet;
pub(crate) mod qualified_path;
pub(crate) mod unqualified_path;
pub(crate) mod postfix;
pub(crate) mod macro_in_item_position;
pub(crate) mod trait_impl;
pub(crate) mod mod_;

use crate::item::{Builder, CompletionItem};

/// Represents an in-progress set of completions being built.
#[derive(Debug, Default)]
pub struct Completions {
    buf: Vec<CompletionItem>,
}

impl Completions {
    pub fn add(&mut self, item: CompletionItem) {
        self.buf.push(item.into())
    }

    pub fn add_all<I>(&mut self, items: I)
    where
        I: IntoIterator,
        I::Item: Into<CompletionItem>,
    {
        items.into_iter().for_each(|item| self.add(item.into()))
    }
}

impl Into<Vec<CompletionItem>> for Completions {
    fn into(self) -> Vec<CompletionItem> {
        self.buf
    }
}

impl Builder {
    /// Convenience method, which allows to add a freshly created completion into accumulator
    /// without binding it to the variable.
    pub(crate) fn add_to(self, acc: &mut Completions) {
        acc.add(self.build())
    }
}