45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
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use ra_syntax::{
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TextUnit, AstNode, SyntaxKind::COLONCOLON,
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ast,
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algo::generate,
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};
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use crate::assists::{AssistCtx, Assist};
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pub fn split_import(ctx: AssistCtx) -> Option<Assist> {
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let colon_colon = ctx
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.leaf_at_offset()
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.find(|leaf| leaf.kind() == COLONCOLON)?;
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let path = colon_colon.parent().and_then(ast::Path::cast)?;
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let top_path = generate(Some(path), |it| it.parent_path()).last()?;
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let use_tree = top_path.syntax().ancestors().find_map(ast::UseTree::cast);
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if use_tree.is_none() {
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return None;
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}
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let l_curly = colon_colon.range().end();
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let r_curly = top_path.syntax().range().end();
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ctx.build("split import", |edit| {
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edit.insert(l_curly, "{");
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edit.insert(r_curly, "}");
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edit.set_cursor(l_curly + TextUnit::of_str("{"));
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})
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::assists::check_assist;
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#[test]
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fn test_split_import() {
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check_assist(
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split_import,
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"use crate::<|>db::RootDatabase;",
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"use crate::{<|>db::RootDatabase};",
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)
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}
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}
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