language-servers/rust-analyzer
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This crate will hold everything to small to be worth publishing
This commit is contained in:
Aleksey Kladov 2020-03-28 11:01:25 +01:00
parent a1fea0d34e
commit b764c38436
13 changed files with 163 additions and 104 deletions
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14
crates/ra_assists/src/handlers/add_custom_impl.rs
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@ -1,17 +1,13 @@
//! FIXME: write short doc here
use join_to_string::join;
use ra_syntax::{
ast::{self, AstNode},
Direction, SmolStr,
SyntaxKind::{IDENT, WHITESPACE},
TextRange, TextUnit,
};
use stdx::SepBy;
use crate::{Assist, AssistCtx, AssistId};
const DERIVE_TRAIT: &str = "derive";
// Assist: add_custom_impl
//
// Adds impl block for derived trait.
@ -38,7 +34,7 @@ pub(crate) fn add_custom_impl(ctx: AssistCtx) -> Option<Assist> {
.descendants_with_tokens()
.filter(|t| t.kind() == IDENT)
.find_map(|i| i.into_token())
.filter(|t| *t.text() == DERIVE_TRAIT)?
.filter(|t| *t.text() == "derive")?
.text()
.clone();
@ -63,8 +59,7 @@ pub(crate) fn add_custom_impl(ctx: AssistCtx) -> Option<Assist> {
.filter(|t| t != trait_token.text())
.collect::<Vec<SmolStr>>();
let has_more_derives = !new_attr_input.is_empty();
let new_attr_input =
join(new_attr_input.iter()).separator(", ").surround_with("(", ")").to_string();
let new_attr_input = new_attr_input.iter().sep_by(", ").surround_with("(", ")").to_string();
let new_attr_input_len = new_attr_input.len();
let mut buf = String::new();
@ -100,9 +95,10 @@ pub(crate) fn add_custom_impl(ctx: AssistCtx) -> Option<Assist> {
#[cfg(test)]
mod tests {
use super::*;
use crate::helpers::{check_assist, check_assist_not_applicable};
use super::*;
#[test]
fn add_custom_impl_for_unique_input() {
check_assist(