//! Completion for derives
use hir::{HasAttrs, MacroDef, MacroKind};
-use ide_db::helpers::FamousDefs;
+use ide_db::{
+ helpers::{import_assets::ImportAssets, insert_use::ImportScope},
+ SymbolKind,
+};
use itertools::Itertools;
use rustc_hash::FxHashSet;
-use syntax::ast;
+use syntax::{ast, SmolStr, SyntaxKind};
use crate::{
- context::CompletionContext,
- item::{CompletionItem, CompletionItemKind, CompletionKind},
- Completions,
+ completions::flyimport::compute_fuzzy_completion_order_key, context::CompletionContext,
+ item::CompletionItem, Completions, ImportEdit,
};
-pub(super) fn complete_derive(
- acc: &mut Completions,
- ctx: &CompletionContext,
- existing_derives: &[ast::Path],
-) {
- let core = FamousDefs(&ctx.sema, ctx.krate).core();
- let existing_derives: FxHashSet<_> = existing_derives
- .into_iter()
- .filter_map(|path| ctx.scope.speculative_resolve_as_mac(&path))
- .filter(|mac| mac.kind() == MacroKind::Derive)
- .collect();
+pub(super) fn complete_derive(acc: &mut Completions, ctx: &CompletionContext, attr: &ast::Attr) {
+ let core = ctx.famous_defs().core();
+ let existing_derives: FxHashSet<_> =
+ ctx.sema.resolve_derive_macro(attr).into_iter().flatten().flatten().collect();
for (name, mac) in get_derives_in_scope(ctx) {
if existing_derives.contains(&mac) {
}
let name = name.to_smol_str();
- let label;
let (label, lookup) = match core.zip(mac.module(ctx.db).map(|it| it.krate())) {
// show derive dependencies for `core`/`std` derives
Some((core, mac_krate)) if core == mac_krate => {
},
));
let lookup = components.join(", ");
- label = components.iter().rev().join(", ");
- (label.as_str(), Some(lookup))
+ let label = Itertools::intersperse(components.into_iter().rev(), ", ");
+ (SmolStr::from_iter(label), Some(lookup))
} else {
- (&*name, None)
+ (name, None)
}
}
- _ => (&*name, None),
+ _ => (name, None),
};
- let mut item = CompletionItem::new(CompletionKind::Attribute, ctx.source_range(), label);
- item.kind(CompletionItemKind::Attribute);
+ let mut item = CompletionItem::new(SymbolKind::Derive, ctx.source_range(), label);
if let Some(docs) = mac.docs(ctx.db) {
item.documentation(docs);
}
}
item.add_to(acc);
}
+
+ flyimport_derive(acc, ctx);
}
fn get_derives_in_scope(ctx: &CompletionContext) -> Vec<(hir::Name, MacroDef)> {
result
}
+fn flyimport_derive(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
+ if ctx.token.kind() != SyntaxKind::IDENT {
+ return None;
+ };
+ let potential_import_name = ctx.token.to_string();
+ let module = ctx.module?;
+ let parent = ctx.token.parent()?;
+ let user_input_lowercased = potential_import_name.to_lowercase();
+ let import_assets = ImportAssets::for_fuzzy_path(
+ module,
+ None,
+ potential_import_name,
+ &ctx.sema,
+ parent.clone(),
+ )?;
+ let import_scope = ImportScope::find_insert_use_container(&parent, &ctx.sema)?;
+ acc.add_all(
+ import_assets
+ .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind)
+ .into_iter()
+ .filter_map(|import| match import.original_item {
+ hir::ItemInNs::Macros(mac) => Some((import, mac)),
+ _ => None,
+ })
+ .filter(|&(_, mac)| mac.kind() == MacroKind::Derive)
+ .filter(|&(_, mac)| !ctx.is_item_hidden(&hir::ItemInNs::Macros(mac)))
+ .sorted_by_key(|(import, _)| {
+ compute_fuzzy_completion_order_key(&import.import_path, &user_input_lowercased)
+ })
+ .filter_map(|(import, mac)| {
+ let mut item = CompletionItem::new(
+ SymbolKind::Derive,
+ ctx.source_range(),
+ mac.name(ctx.db)?.to_smol_str(),
+ );
+ item.add_import(ImportEdit { import, scope: import_scope.clone() });
+ if let Some(docs) = mac.docs(ctx.db) {
+ item.documentation(docs);
+ }
+ Some(item.build())
+ }),
+ );
+ Some(())
+}
+
struct DeriveDependencies {
label: &'static str,
dependencies: &'static [&'static str],