853 lines
26 KiB
Rust
853 lines
26 KiB
Rust
//! Completion for attributes
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//!
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//! This module uses a bit of static metadata to provide completions
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//! for built-in attributes.
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use hir::HasAttrs;
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use ide_db::helpers::generated_lints::{CLIPPY_LINTS, DEFAULT_LINTS, FEATURES};
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use once_cell::sync::Lazy;
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use rustc_hash::{FxHashMap, FxHashSet};
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use syntax::{algo::non_trivia_sibling, ast, AstNode, Direction, NodeOrToken, SyntaxKind, T};
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use crate::{
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context::CompletionContext,
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item::{CompletionItem, CompletionItemKind, CompletionKind},
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Completions,
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};
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mod derive;
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mod lint;
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pub(crate) fn complete_attribute(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
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let attribute = ctx.attribute_under_caret.as_ref()?;
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match (attribute.path().and_then(|p| p.as_single_name_ref()), attribute.token_tree()) {
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(Some(path), Some(token_tree)) => match path.text().as_str() {
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"derive" => derive::complete_derive(acc, ctx, token_tree),
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"feature" => lint::complete_lint(acc, ctx, token_tree, FEATURES),
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"allow" | "warn" | "deny" | "forbid" => {
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lint::complete_lint(acc, ctx, token_tree.clone(), DEFAULT_LINTS);
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lint::complete_lint(acc, ctx, token_tree, CLIPPY_LINTS);
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}
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_ => (),
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},
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(None, Some(_)) => (),
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_ => complete_new_attribute(acc, ctx, attribute),
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}
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Some(())
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}
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fn complete_new_attribute(acc: &mut Completions, ctx: &CompletionContext, attribute: &ast::Attr) {
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let is_inner = attribute.kind() == ast::AttrKind::Inner;
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let attribute_annotated_item_kind =
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attribute.syntax().parent().map(|it| it.kind()).filter(|_| {
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is_inner
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// If we got nothing coming after the attribute it could be anything so filter it the kind out
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|| non_trivia_sibling(attribute.syntax().clone().into(), Direction::Next).is_some()
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});
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let attributes = attribute_annotated_item_kind.and_then(|kind| {
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if ast::Expr::can_cast(kind) {
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Some(EXPR_ATTRIBUTES)
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} else {
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KIND_TO_ATTRIBUTES.get(&kind).copied()
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}
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});
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let add_completion = |attr_completion: &AttrCompletion| {
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let mut item = CompletionItem::new(
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CompletionKind::Attribute,
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ctx.source_range(),
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attr_completion.label,
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);
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item.kind(CompletionItemKind::Attribute);
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if let Some(lookup) = attr_completion.lookup {
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item.lookup_by(lookup);
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}
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if let Some((snippet, cap)) = attr_completion.snippet.zip(ctx.config.snippet_cap) {
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item.insert_snippet(cap, snippet);
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}
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if is_inner || !attr_completion.prefer_inner {
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item.add_to(acc);
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}
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};
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match attributes {
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Some(applicable) => applicable
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.iter()
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.flat_map(|name| ATTRIBUTES.binary_search_by(|attr| attr.key().cmp(name)).ok())
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.flat_map(|idx| ATTRIBUTES.get(idx))
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.for_each(add_completion),
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None if is_inner => ATTRIBUTES.iter().for_each(add_completion),
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None => ATTRIBUTES.iter().filter(|compl| !compl.prefer_inner).for_each(add_completion),
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}
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// FIXME: write a test for this when we can
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ctx.scope.process_all_names(&mut |name, scope_def| {
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if let hir::ScopeDef::MacroDef(mac) = scope_def {
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if mac.kind() == hir::MacroKind::Attr {
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let mut item = CompletionItem::new(
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CompletionKind::Attribute,
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ctx.source_range(),
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name.to_string(),
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);
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item.kind(CompletionItemKind::Attribute);
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if let Some(docs) = mac.docs(ctx.sema.db) {
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item.documentation(docs);
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}
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item.add_to(acc);
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}
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}
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});
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}
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struct AttrCompletion {
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label: &'static str,
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lookup: Option<&'static str>,
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snippet: Option<&'static str>,
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prefer_inner: bool,
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}
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impl AttrCompletion {
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fn key(&self) -> &'static str {
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self.lookup.unwrap_or(self.label)
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}
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const fn prefer_inner(self) -> AttrCompletion {
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AttrCompletion { prefer_inner: true, ..self }
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}
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}
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const fn attr(
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label: &'static str,
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lookup: Option<&'static str>,
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snippet: Option<&'static str>,
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) -> AttrCompletion {
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AttrCompletion { label, lookup, snippet, prefer_inner: false }
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}
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macro_rules! attrs {
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// attributes applicable to all items
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[@ { item $($tt:tt)* } {$($acc:tt)*}] => {
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attrs!(@ { $($tt)* } { $($acc)*, "deprecated", "doc", "dochidden", "docalias", "must_use", "no_mangle" })
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};
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// attributes applicable to all adts
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[@ { adt $($tt:tt)* } {$($acc:tt)*}] => {
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attrs!(@ { $($tt)* } { $($acc)*, "derive", "repr" })
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};
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// attributes applicable to all linkable things aka functions/statics
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[@ { linkable $($tt:tt)* } {$($acc:tt)*}] => {
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attrs!(@ { $($tt)* } { $($acc)*, "export_name", "link_name", "link_section" })
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};
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// error fallback for nicer error message
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[@ { $ty:ident $($tt:tt)* } {$($acc:tt)*}] => {
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compile_error!(concat!("unknown attr subtype ", stringify!($ty)))
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};
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// general push down accumulation
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[@ { $lit:literal $($tt:tt)*} {$($acc:tt)*}] => {
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attrs!(@ { $($tt)* } { $($acc)*, $lit })
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};
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[@ {$($tt:tt)+} {$($tt2:tt)*}] => {
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compile_error!(concat!("Unexpected input ", stringify!($($tt)+)))
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};
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// final output construction
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[@ {} {$($tt:tt)*}] => { &[$($tt)*] as _ };
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// starting matcher
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[$($tt:tt),*] => {
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attrs!(@ { $($tt)* } { "allow", "cfg", "cfg_attr", "deny", "forbid", "warn" })
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};
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}
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#[rustfmt::skip]
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static KIND_TO_ATTRIBUTES: Lazy<FxHashMap<SyntaxKind, &[&str]>> = Lazy::new(|| {
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use SyntaxKind::*;
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std::array::IntoIter::new([
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(
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SOURCE_FILE,
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attrs!(
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item,
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"crate_name", "feature", "no_implicit_prelude", "no_main", "no_std",
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"recursion_limit", "type_length_limit", "windows_subsystem"
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),
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),
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(MODULE, attrs!(item, "no_implicit_prelude", "path")),
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(ITEM_LIST, attrs!(item, "no_implicit_prelude")),
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(MACRO_RULES, attrs!(item, "macro_export", "macro_use")),
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(MACRO_DEF, attrs!(item)),
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(EXTERN_CRATE, attrs!(item, "macro_use", "no_link")),
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(USE, attrs!(item)),
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(TYPE_ALIAS, attrs!(item)),
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(STRUCT, attrs!(item, adt, "non_exhaustive")),
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(ENUM, attrs!(item, adt, "non_exhaustive")),
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(UNION, attrs!(item, adt)),
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(CONST, attrs!(item)),
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(
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FN,
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attrs!(
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item, linkable,
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"cold", "ignore", "inline", "must_use", "panic_handler", "proc_macro",
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"proc_macro_derive", "proc_macro_attribute", "should_panic", "target_feature",
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"test", "track_caller"
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),
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),
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(STATIC, attrs!(item, linkable, "global_allocator", "used")),
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(TRAIT, attrs!(item, "must_use")),
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(IMPL, attrs!(item, "automatically_derived")),
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(ASSOC_ITEM_LIST, attrs!(item)),
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(EXTERN_BLOCK, attrs!(item, "link")),
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(EXTERN_ITEM_LIST, attrs!(item, "link")),
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(MACRO_CALL, attrs!()),
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(SELF_PARAM, attrs!()),
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(PARAM, attrs!()),
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(RECORD_FIELD, attrs!()),
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(VARIANT, attrs!("non_exhaustive")),
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(TYPE_PARAM, attrs!()),
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(CONST_PARAM, attrs!()),
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(LIFETIME_PARAM, attrs!()),
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(LET_STMT, attrs!()),
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(EXPR_STMT, attrs!()),
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(LITERAL, attrs!()),
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(RECORD_EXPR_FIELD_LIST, attrs!()),
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(RECORD_EXPR_FIELD, attrs!()),
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(MATCH_ARM_LIST, attrs!()),
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(MATCH_ARM, attrs!()),
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(IDENT_PAT, attrs!()),
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(RECORD_PAT_FIELD, attrs!()),
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])
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.collect()
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});
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const EXPR_ATTRIBUTES: &[&str] = attrs!();
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/// https://doc.rust-lang.org/reference/attributes.html#built-in-attributes-index
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// Keep these sorted for the binary search!
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const ATTRIBUTES: &[AttrCompletion] = &[
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attr("allow(…)", Some("allow"), Some("allow(${0:lint})")),
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attr("automatically_derived", None, None),
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attr("cfg(…)", Some("cfg"), Some("cfg(${0:predicate})")),
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attr("cfg_attr(…)", Some("cfg_attr"), Some("cfg_attr(${1:predicate}, ${0:attr})")),
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attr("cold", None, None),
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attr(r#"crate_name = """#, Some("crate_name"), Some(r#"crate_name = "${0:crate_name}""#))
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.prefer_inner(),
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attr("deny(…)", Some("deny"), Some("deny(${0:lint})")),
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attr(r#"deprecated"#, Some("deprecated"), Some(r#"deprecated"#)),
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attr("derive(…)", Some("derive"), Some(r#"derive(${0:Debug})"#)),
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attr(r#"doc = "…""#, Some("doc"), Some(r#"doc = "${0:docs}""#)),
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attr(r#"doc(alias = "…")"#, Some("docalias"), Some(r#"doc(alias = "${0:docs}")"#)),
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attr(r#"doc(hidden)"#, Some("dochidden"), Some(r#"doc(hidden)"#)),
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attr(
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r#"export_name = "…""#,
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Some("export_name"),
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Some(r#"export_name = "${0:exported_symbol_name}""#),
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),
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attr("feature(…)", Some("feature"), Some("feature(${0:flag})")).prefer_inner(),
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attr("forbid(…)", Some("forbid"), Some("forbid(${0:lint})")),
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attr("global_allocator", None, None),
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attr(r#"ignore = "…""#, Some("ignore"), Some(r#"ignore = "${0:reason}""#)),
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attr("inline", Some("inline"), Some("inline")),
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attr("link", None, None),
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attr(r#"link_name = "…""#, Some("link_name"), Some(r#"link_name = "${0:symbol_name}""#)),
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attr(
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r#"link_section = "…""#,
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Some("link_section"),
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Some(r#"link_section = "${0:section_name}""#),
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),
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attr("macro_export", None, None),
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attr("macro_use", None, None),
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attr(r#"must_use"#, Some("must_use"), Some(r#"must_use"#)),
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attr("no_implicit_prelude", None, None).prefer_inner(),
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attr("no_link", None, None).prefer_inner(),
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attr("no_main", None, None).prefer_inner(),
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attr("no_mangle", None, None),
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attr("no_std", None, None).prefer_inner(),
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attr("non_exhaustive", None, None),
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attr("panic_handler", None, None),
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attr(r#"path = "…""#, Some("path"), Some(r#"path ="${0:path}""#)),
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attr("proc_macro", None, None),
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attr("proc_macro_attribute", None, None),
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attr("proc_macro_derive(…)", Some("proc_macro_derive"), Some("proc_macro_derive(${0:Trait})")),
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attr("recursion_limit = …", Some("recursion_limit"), Some("recursion_limit = ${0:128}"))
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.prefer_inner(),
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attr("repr(…)", Some("repr"), Some("repr(${0:C})")),
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attr("should_panic", Some("should_panic"), Some(r#"should_panic"#)),
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attr(
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r#"target_feature = "…""#,
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Some("target_feature"),
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Some(r#"target_feature = "${0:feature}""#),
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),
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attr("test", None, None),
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attr("track_caller", None, None),
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attr("type_length_limit = …", Some("type_length_limit"), Some("type_length_limit = ${0:128}"))
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.prefer_inner(),
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attr("used", None, None),
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attr("warn(…)", Some("warn"), Some("warn(${0:lint})")),
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attr(
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r#"windows_subsystem = "…""#,
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Some("windows_subsystem"),
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Some(r#"windows_subsystem = "${0:subsystem}""#),
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)
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.prefer_inner(),
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];
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fn parse_comma_sep_input(derive_input: ast::TokenTree) -> Option<FxHashSet<String>> {
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let (l_paren, r_paren) = derive_input.l_paren_token().zip(derive_input.r_paren_token())?;
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let mut input_derives = FxHashSet::default();
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let mut tokens = derive_input
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.syntax()
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.children_with_tokens()
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.filter_map(NodeOrToken::into_token)
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.skip_while(|token| token != &l_paren)
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.skip(1)
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.take_while(|token| token != &r_paren)
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.peekable();
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let mut input = String::new();
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while tokens.peek().is_some() {
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for token in tokens.by_ref().take_while(|t| t.kind() != T![,]) {
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input.push_str(token.text());
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}
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if !input.is_empty() {
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input_derives.insert(input.trim().to_owned());
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}
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input.clear();
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}
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Some(input_derives)
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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 expect_test::{expect, Expect};
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use crate::{test_utils::completion_list, CompletionKind};
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#[test]
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fn attributes_are_sorted() {
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let mut attrs = ATTRIBUTES.iter().map(|attr| attr.key());
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let mut prev = attrs.next().unwrap();
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attrs.for_each(|next| {
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assert!(
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prev < next,
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r#"ATTRIBUTES array is not sorted, "{}" should come after "{}""#,
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prev,
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next
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);
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prev = next;
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});
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}
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fn check(ra_fixture: &str, expect: Expect) {
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let actual = completion_list(ra_fixture, CompletionKind::Attribute);
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expect.assert_eq(&actual);
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}
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#[test]
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fn test_attribute_completion_inside_nested_attr() {
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check(r#"#[cfg($0)]"#, expect![[]])
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}
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#[test]
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fn test_attribute_completion_with_existing_attr() {
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check(
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r#"#[no_mangle] #[$0] mcall!();"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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"#]],
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)
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}
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#[test]
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fn complete_attribute_on_source_file() {
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check(
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r#"#![$0]"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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at deprecated
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at doc = "…"
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at doc(hidden)
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at doc(alias = "…")
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at must_use
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at no_mangle
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at crate_name = ""
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at feature(…)
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at no_implicit_prelude
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at no_main
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at no_std
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at recursion_limit = …
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at type_length_limit = …
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at windows_subsystem = "…"
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"#]],
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);
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}
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#[test]
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fn complete_attribute_on_module() {
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check(
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r#"#[$0] mod foo;"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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at deprecated
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at doc = "…"
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at doc(hidden)
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at doc(alias = "…")
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at must_use
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at no_mangle
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at path = "…"
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"#]],
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);
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check(
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r#"mod foo {#![$0]}"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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at deprecated
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at doc = "…"
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at doc(hidden)
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at doc(alias = "…")
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at must_use
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at no_mangle
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at no_implicit_prelude
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"#]],
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);
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}
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#[test]
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fn complete_attribute_on_macro_rules() {
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check(
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r#"#[$0] macro_rules! foo {}"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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at deprecated
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at doc = "…"
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at doc(hidden)
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at doc(alias = "…")
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at must_use
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at no_mangle
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at macro_export
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at macro_use
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"#]],
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);
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}
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#[test]
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fn complete_attribute_on_macro_def() {
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check(
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r#"#[$0] macro foo {}"#,
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expect![[r#"
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at allow(…)
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at cfg(…)
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at cfg_attr(…)
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at deny(…)
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at forbid(…)
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at warn(…)
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at deprecated
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at doc = "…"
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at doc(hidden)
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at doc(alias = "…")
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at must_use
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at no_mangle
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"#]],
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);
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}
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#[test]
|
|
fn complete_attribute_on_extern_crate() {
|
|
check(
|
|
r#"#[$0] extern crate foo;"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at macro_use
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_use() {
|
|
check(
|
|
r#"#[$0] use foo;"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_type_alias() {
|
|
check(
|
|
r#"#[$0] type foo = ();"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_struct() {
|
|
check(
|
|
r#"#[$0] struct Foo;"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at derive(…)
|
|
at repr(…)
|
|
at non_exhaustive
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_enum() {
|
|
check(
|
|
r#"#[$0] enum Foo {}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at derive(…)
|
|
at repr(…)
|
|
at non_exhaustive
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_const() {
|
|
check(
|
|
r#"#[$0] const FOO: () = ();"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_static() {
|
|
check(
|
|
r#"#[$0] static FOO: () = ()"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at export_name = "…"
|
|
at link_name = "…"
|
|
at link_section = "…"
|
|
at global_allocator
|
|
at used
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_trait() {
|
|
check(
|
|
r#"#[$0] trait Foo {}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at must_use
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_impl() {
|
|
check(
|
|
r#"#[$0] impl () {}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at automatically_derived
|
|
"#]],
|
|
);
|
|
check(
|
|
r#"impl () {#![$0]}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_extern_block() {
|
|
check(
|
|
r#"#[$0] extern {}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at link
|
|
"#]],
|
|
);
|
|
check(
|
|
r#"extern {#![$0]}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at link
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_variant() {
|
|
check(
|
|
r#"enum Foo { #[$0] Bar }"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at non_exhaustive
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_fn() {
|
|
check(
|
|
r#"#[$0] fn main() {}"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
at deprecated
|
|
at doc = "…"
|
|
at doc(hidden)
|
|
at doc(alias = "…")
|
|
at must_use
|
|
at no_mangle
|
|
at export_name = "…"
|
|
at link_name = "…"
|
|
at link_section = "…"
|
|
at cold
|
|
at ignore = "…"
|
|
at inline
|
|
at must_use
|
|
at panic_handler
|
|
at proc_macro
|
|
at proc_macro_derive(…)
|
|
at proc_macro_attribute
|
|
at should_panic
|
|
at target_feature = "…"
|
|
at test
|
|
at track_caller
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_on_expr() {
|
|
check(
|
|
r#"fn main() { #[$0] foo() }"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at deny(…)
|
|
at forbid(…)
|
|
at warn(…)
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn complete_attribute_in_source_file_end() {
|
|
check(
|
|
r#"#[$0]"#,
|
|
expect![[r#"
|
|
at allow(…)
|
|
at automatically_derived
|
|
at cfg(…)
|
|
at cfg_attr(…)
|
|
at cold
|
|
at deny(…)
|
|
at deprecated
|
|
at derive(…)
|
|
at doc = "…"
|
|
at doc(alias = "…")
|
|
at doc(hidden)
|
|
at export_name = "…"
|
|
at forbid(…)
|
|
at global_allocator
|
|
at ignore = "…"
|
|
at inline
|
|
at link
|
|
at link_name = "…"
|
|
at link_section = "…"
|
|
at macro_export
|
|
at macro_use
|
|
at must_use
|
|
at no_mangle
|
|
at non_exhaustive
|
|
at panic_handler
|
|
at path = "…"
|
|
at proc_macro
|
|
at proc_macro_attribute
|
|
at proc_macro_derive(…)
|
|
at repr(…)
|
|
at should_panic
|
|
at target_feature = "…"
|
|
at test
|
|
at track_caller
|
|
at used
|
|
at warn(…)
|
|
"#]],
|
|
);
|
|
}
|
|
}
|