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-rw-r--r--src/tools/rust-analyzer/crates/ide-completion/src/render.rs1910
1 files changed, 1910 insertions, 0 deletions
diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/render.rs b/src/tools/rust-analyzer/crates/ide-completion/src/render.rs
new file mode 100644
index 000000000..946134b0f
--- /dev/null
+++ b/src/tools/rust-analyzer/crates/ide-completion/src/render.rs
@@ -0,0 +1,1910 @@
+//! `render` module provides utilities for rendering completion suggestions
+//! into code pieces that will be presented to user.
+
+pub(crate) mod macro_;
+pub(crate) mod function;
+pub(crate) mod const_;
+pub(crate) mod pattern;
+pub(crate) mod type_alias;
+pub(crate) mod variant;
+pub(crate) mod union_literal;
+pub(crate) mod literal;
+
+use hir::{AsAssocItem, HasAttrs, HirDisplay, ScopeDef};
+use ide_db::{
+ helpers::item_name, imports::import_assets::LocatedImport, RootDatabase, SnippetCap, SymbolKind,
+};
+use syntax::{AstNode, SmolStr, SyntaxKind, TextRange};
+
+use crate::{
+ context::{DotAccess, PathCompletionCtx, PathKind, PatternContext},
+ item::{Builder, CompletionRelevanceTypeMatch},
+ render::{
+ function::render_fn,
+ literal::render_variant_lit,
+ macro_::{render_macro, render_macro_pat},
+ },
+ CompletionContext, CompletionItem, CompletionItemKind, CompletionRelevance,
+};
+/// Interface for data and methods required for items rendering.
+#[derive(Debug, Clone)]
+pub(crate) struct RenderContext<'a> {
+ completion: &'a CompletionContext<'a>,
+ is_private_editable: bool,
+ import_to_add: Option<LocatedImport>,
+}
+
+impl<'a> RenderContext<'a> {
+ pub(crate) fn new(completion: &'a CompletionContext<'a>) -> RenderContext<'a> {
+ RenderContext { completion, is_private_editable: false, import_to_add: None }
+ }
+
+ pub(crate) fn private_editable(mut self, private_editable: bool) -> Self {
+ self.is_private_editable = private_editable;
+ self
+ }
+
+ pub(crate) fn import_to_add(mut self, import_to_add: Option<LocatedImport>) -> Self {
+ self.import_to_add = import_to_add;
+ self
+ }
+
+ fn snippet_cap(&self) -> Option<SnippetCap> {
+ self.completion.config.snippet_cap
+ }
+
+ fn db(&self) -> &'a RootDatabase {
+ self.completion.db
+ }
+
+ fn source_range(&self) -> TextRange {
+ self.completion.source_range()
+ }
+
+ fn completion_relevance(&self) -> CompletionRelevance {
+ CompletionRelevance {
+ is_private_editable: self.is_private_editable,
+ requires_import: self.import_to_add.is_some(),
+ ..Default::default()
+ }
+ }
+
+ fn is_immediately_after_macro_bang(&self) -> bool {
+ self.completion.token.kind() == SyntaxKind::BANG
+ && self
+ .completion
+ .token
+ .parent()
+ .map_or(false, |it| it.kind() == SyntaxKind::MACRO_CALL)
+ }
+
+ fn is_deprecated(&self, def: impl HasAttrs) -> bool {
+ let attrs = def.attrs(self.db());
+ attrs.by_key("deprecated").exists()
+ }
+
+ fn is_deprecated_assoc_item(&self, as_assoc_item: impl AsAssocItem) -> bool {
+ let db = self.db();
+ let assoc = match as_assoc_item.as_assoc_item(db) {
+ Some(assoc) => assoc,
+ None => return false,
+ };
+
+ let is_assoc_deprecated = match assoc {
+ hir::AssocItem::Function(it) => self.is_deprecated(it),
+ hir::AssocItem::Const(it) => self.is_deprecated(it),
+ hir::AssocItem::TypeAlias(it) => self.is_deprecated(it),
+ };
+ is_assoc_deprecated
+ || assoc
+ .containing_trait_or_trait_impl(db)
+ .map(|trait_| self.is_deprecated(trait_))
+ .unwrap_or(false)
+ }
+
+ // FIXME: remove this
+ fn docs(&self, def: impl HasAttrs) -> Option<hir::Documentation> {
+ def.docs(self.db())
+ }
+}
+
+pub(crate) fn render_field(
+ ctx: RenderContext<'_>,
+ dot_access: &DotAccess,
+ receiver: Option<hir::Name>,
+ field: hir::Field,
+ ty: &hir::Type,
+) -> CompletionItem {
+ let is_deprecated = ctx.is_deprecated(field);
+ let name = field.name(ctx.db());
+ let (name, escaped_name) = (name.to_smol_str(), name.escaped().to_smol_str());
+ let mut item = CompletionItem::new(
+ SymbolKind::Field,
+ ctx.source_range(),
+ field_with_receiver(receiver.as_ref(), &name),
+ );
+ item.set_relevance(CompletionRelevance {
+ type_match: compute_type_match(ctx.completion, ty),
+ exact_name_match: compute_exact_name_match(ctx.completion, name.as_str()),
+ ..CompletionRelevance::default()
+ });
+ item.detail(ty.display(ctx.db()).to_string())
+ .set_documentation(field.docs(ctx.db()))
+ .set_deprecated(is_deprecated)
+ .lookup_by(name.clone());
+ item.insert_text(field_with_receiver(receiver.as_ref(), &escaped_name));
+ if let Some(receiver) = &dot_access.receiver {
+ if let Some(original) = ctx.completion.sema.original_ast_node(receiver.clone()) {
+ if let Some(ref_match) = compute_ref_match(ctx.completion, ty) {
+ item.ref_match(ref_match, original.syntax().text_range().start());
+ }
+ }
+ }
+ item.build()
+}
+
+fn field_with_receiver(receiver: Option<&hir::Name>, field_name: &str) -> SmolStr {
+ receiver
+ .map_or_else(|| field_name.into(), |receiver| format!("{}.{}", receiver, field_name).into())
+}
+
+pub(crate) fn render_tuple_field(
+ ctx: RenderContext<'_>,
+ receiver: Option<hir::Name>,
+ field: usize,
+ ty: &hir::Type,
+) -> CompletionItem {
+ let mut item = CompletionItem::new(
+ SymbolKind::Field,
+ ctx.source_range(),
+ field_with_receiver(receiver.as_ref(), &field.to_string()),
+ );
+ item.detail(ty.display(ctx.db()).to_string()).lookup_by(field.to_string());
+ item.build()
+}
+
+pub(crate) fn render_type_inference(
+ ty_string: String,
+ ctx: &CompletionContext<'_>,
+) -> CompletionItem {
+ let mut builder =
+ CompletionItem::new(CompletionItemKind::InferredType, ctx.source_range(), ty_string);
+ builder.set_relevance(CompletionRelevance { is_definite: true, ..Default::default() });
+ builder.build()
+}
+
+pub(crate) fn render_path_resolution(
+ ctx: RenderContext<'_>,
+ path_ctx: &PathCompletionCtx,
+ local_name: hir::Name,
+ resolution: ScopeDef,
+) -> Builder {
+ render_resolution_path(ctx, path_ctx, local_name, None, resolution)
+}
+
+pub(crate) fn render_pattern_resolution(
+ ctx: RenderContext<'_>,
+ pattern_ctx: &PatternContext,
+ local_name: hir::Name,
+ resolution: ScopeDef,
+) -> Builder {
+ render_resolution_pat(ctx, pattern_ctx, local_name, None, resolution)
+}
+
+pub(crate) fn render_resolution_with_import(
+ ctx: RenderContext<'_>,
+ path_ctx: &PathCompletionCtx,
+ import_edit: LocatedImport,
+) -> Option<Builder> {
+ let resolution = ScopeDef::from(import_edit.original_item);
+ let local_name = scope_def_to_name(resolution, &ctx, &import_edit)?;
+
+ Some(render_resolution_path(ctx, path_ctx, local_name, Some(import_edit), resolution))
+}
+
+pub(crate) fn render_resolution_with_import_pat(
+ ctx: RenderContext<'_>,
+ pattern_ctx: &PatternContext,
+ import_edit: LocatedImport,
+) -> Option<Builder> {
+ let resolution = ScopeDef::from(import_edit.original_item);
+ let local_name = scope_def_to_name(resolution, &ctx, &import_edit)?;
+ Some(render_resolution_pat(ctx, pattern_ctx, local_name, Some(import_edit), resolution))
+}
+
+fn scope_def_to_name(
+ resolution: ScopeDef,
+ ctx: &RenderContext<'_>,
+ import_edit: &LocatedImport,
+) -> Option<hir::Name> {
+ Some(match resolution {
+ ScopeDef::ModuleDef(hir::ModuleDef::Function(f)) => f.name(ctx.completion.db),
+ ScopeDef::ModuleDef(hir::ModuleDef::Const(c)) => c.name(ctx.completion.db)?,
+ ScopeDef::ModuleDef(hir::ModuleDef::TypeAlias(t)) => t.name(ctx.completion.db),
+ _ => item_name(ctx.db(), import_edit.original_item)?,
+ })
+}
+
+fn render_resolution_pat(
+ ctx: RenderContext<'_>,
+ pattern_ctx: &PatternContext,
+ local_name: hir::Name,
+ import_to_add: Option<LocatedImport>,
+ resolution: ScopeDef,
+) -> Builder {
+ let _p = profile::span("render_resolution");
+ use hir::ModuleDef::*;
+
+ match resolution {
+ ScopeDef::ModuleDef(Macro(mac)) => {
+ let ctx = ctx.import_to_add(import_to_add);
+ return render_macro_pat(ctx, pattern_ctx, local_name, mac);
+ }
+ _ => (),
+ }
+
+ render_resolution_simple_(ctx, &local_name, import_to_add, resolution)
+}
+
+fn render_resolution_path(
+ ctx: RenderContext<'_>,
+ path_ctx: &PathCompletionCtx,
+ local_name: hir::Name,
+ import_to_add: Option<LocatedImport>,
+ resolution: ScopeDef,
+) -> Builder {
+ let _p = profile::span("render_resolution");
+ use hir::ModuleDef::*;
+
+ match resolution {
+ ScopeDef::ModuleDef(Macro(mac)) => {
+ let ctx = ctx.import_to_add(import_to_add);
+ return render_macro(ctx, path_ctx, local_name, mac);
+ }
+ ScopeDef::ModuleDef(Function(func)) => {
+ let ctx = ctx.import_to_add(import_to_add);
+ return render_fn(ctx, path_ctx, Some(local_name), func);
+ }
+ ScopeDef::ModuleDef(Variant(var)) => {
+ let ctx = ctx.clone().import_to_add(import_to_add.clone());
+ if let Some(item) =
+ render_variant_lit(ctx, path_ctx, Some(local_name.clone()), var, None)
+ {
+ return item;
+ }
+ }
+ _ => (),
+ }
+
+ let completion = ctx.completion;
+ let cap = ctx.snippet_cap();
+ let db = completion.db;
+ let config = completion.config;
+
+ let name = local_name.to_smol_str();
+ let mut item = render_resolution_simple_(ctx, &local_name, import_to_add, resolution);
+ if local_name.escaped().is_escaped() {
+ item.insert_text(local_name.escaped().to_smol_str());
+ }
+ // Add `<>` for generic types
+ let type_path_no_ty_args = matches!(
+ path_ctx,
+ PathCompletionCtx { kind: PathKind::Type { .. }, has_type_args: false, .. }
+ ) && config.callable.is_some();
+ if type_path_no_ty_args {
+ if let Some(cap) = cap {
+ let has_non_default_type_params = match resolution {
+ ScopeDef::ModuleDef(hir::ModuleDef::Adt(it)) => it.has_non_default_type_params(db),
+ ScopeDef::ModuleDef(hir::ModuleDef::TypeAlias(it)) => {
+ it.has_non_default_type_params(db)
+ }
+ _ => false,
+ };
+
+ if has_non_default_type_params {
+ cov_mark::hit!(inserts_angle_brackets_for_generics);
+ item.lookup_by(name.clone())
+ .label(SmolStr::from_iter([&name, "<…>"]))
+ .trigger_call_info()
+ .insert_snippet(cap, format!("{}<$0>", local_name.escaped()));
+ }
+ }
+ }
+ if let ScopeDef::Local(local) = resolution {
+ let ty = local.ty(db);
+ if !ty.is_unknown() {
+ item.detail(ty.display(db).to_string());
+ }
+
+ item.set_relevance(CompletionRelevance {
+ type_match: compute_type_match(completion, &ty),
+ exact_name_match: compute_exact_name_match(completion, &name),
+ is_local: true,
+ ..CompletionRelevance::default()
+ });
+
+ if let Some(ref_match) = compute_ref_match(completion, &ty) {
+ item.ref_match(ref_match, path_ctx.path.syntax().text_range().start());
+ }
+ };
+ item
+}
+
+fn render_resolution_simple_(
+ ctx: RenderContext<'_>,
+ local_name: &hir::Name,
+ import_to_add: Option<LocatedImport>,
+ resolution: ScopeDef,
+) -> Builder {
+ let _p = profile::span("render_resolution");
+
+ let db = ctx.db();
+ let ctx = ctx.import_to_add(import_to_add);
+ let kind = res_to_kind(resolution);
+
+ let mut item = CompletionItem::new(kind, ctx.source_range(), local_name.to_smol_str());
+ item.set_relevance(ctx.completion_relevance())
+ .set_documentation(scope_def_docs(db, resolution))
+ .set_deprecated(scope_def_is_deprecated(&ctx, resolution));
+
+ if let Some(import_to_add) = ctx.import_to_add {
+ item.add_import(import_to_add);
+ }
+ item
+}
+
+fn res_to_kind(resolution: ScopeDef) -> CompletionItemKind {
+ use hir::ModuleDef::*;
+ match resolution {
+ ScopeDef::Unknown => CompletionItemKind::UnresolvedReference,
+ ScopeDef::ModuleDef(Function(_)) => CompletionItemKind::SymbolKind(SymbolKind::Function),
+ ScopeDef::ModuleDef(Variant(_)) => CompletionItemKind::SymbolKind(SymbolKind::Variant),
+ ScopeDef::ModuleDef(Macro(_)) => CompletionItemKind::SymbolKind(SymbolKind::Macro),
+ ScopeDef::ModuleDef(Module(..)) => CompletionItemKind::SymbolKind(SymbolKind::Module),
+ ScopeDef::ModuleDef(Adt(adt)) => CompletionItemKind::SymbolKind(match adt {
+ hir::Adt::Struct(_) => SymbolKind::Struct,
+ hir::Adt::Union(_) => SymbolKind::Union,
+ hir::Adt::Enum(_) => SymbolKind::Enum,
+ }),
+ ScopeDef::ModuleDef(Const(..)) => CompletionItemKind::SymbolKind(SymbolKind::Const),
+ ScopeDef::ModuleDef(Static(..)) => CompletionItemKind::SymbolKind(SymbolKind::Static),
+ ScopeDef::ModuleDef(Trait(..)) => CompletionItemKind::SymbolKind(SymbolKind::Trait),
+ ScopeDef::ModuleDef(TypeAlias(..)) => CompletionItemKind::SymbolKind(SymbolKind::TypeAlias),
+ ScopeDef::ModuleDef(BuiltinType(..)) => CompletionItemKind::BuiltinType,
+ ScopeDef::GenericParam(param) => CompletionItemKind::SymbolKind(match param {
+ hir::GenericParam::TypeParam(_) => SymbolKind::TypeParam,
+ hir::GenericParam::ConstParam(_) => SymbolKind::ConstParam,
+ hir::GenericParam::LifetimeParam(_) => SymbolKind::LifetimeParam,
+ }),
+ ScopeDef::Local(..) => CompletionItemKind::SymbolKind(SymbolKind::Local),
+ ScopeDef::Label(..) => CompletionItemKind::SymbolKind(SymbolKind::Label),
+ ScopeDef::AdtSelfType(..) | ScopeDef::ImplSelfType(..) => {
+ CompletionItemKind::SymbolKind(SymbolKind::SelfParam)
+ }
+ }
+}
+
+fn scope_def_docs(db: &RootDatabase, resolution: ScopeDef) -> Option<hir::Documentation> {
+ use hir::ModuleDef::*;
+ match resolution {
+ ScopeDef::ModuleDef(Module(it)) => it.docs(db),
+ ScopeDef::ModuleDef(Adt(it)) => it.docs(db),
+ ScopeDef::ModuleDef(Variant(it)) => it.docs(db),
+ ScopeDef::ModuleDef(Const(it)) => it.docs(db),
+ ScopeDef::ModuleDef(Static(it)) => it.docs(db),
+ ScopeDef::ModuleDef(Trait(it)) => it.docs(db),
+ ScopeDef::ModuleDef(TypeAlias(it)) => it.docs(db),
+ _ => None,
+ }
+}
+
+fn scope_def_is_deprecated(ctx: &RenderContext<'_>, resolution: ScopeDef) -> bool {
+ match resolution {
+ ScopeDef::ModuleDef(it) => ctx.is_deprecated_assoc_item(it),
+ ScopeDef::GenericParam(it) => ctx.is_deprecated(it),
+ ScopeDef::AdtSelfType(it) => ctx.is_deprecated(it),
+ _ => false,
+ }
+}
+
+fn compute_type_match(
+ ctx: &CompletionContext<'_>,
+ completion_ty: &hir::Type,
+) -> Option<CompletionRelevanceTypeMatch> {
+ let expected_type = ctx.expected_type.as_ref()?;
+
+ // We don't ever consider unit type to be an exact type match, since
+ // nearly always this is not meaningful to the user.
+ if expected_type.is_unit() {
+ return None;
+ }
+
+ if completion_ty == expected_type {
+ Some(CompletionRelevanceTypeMatch::Exact)
+ } else if expected_type.could_unify_with(ctx.db, completion_ty) {
+ Some(CompletionRelevanceTypeMatch::CouldUnify)
+ } else {
+ None
+ }
+}
+
+fn compute_exact_name_match(ctx: &CompletionContext<'_>, completion_name: &str) -> bool {
+ ctx.expected_name.as_ref().map_or(false, |name| name.text() == completion_name)
+}
+
+fn compute_ref_match(
+ ctx: &CompletionContext<'_>,
+ completion_ty: &hir::Type,
+) -> Option<hir::Mutability> {
+ let expected_type = ctx.expected_type.as_ref()?;
+ if completion_ty != expected_type {
+ let expected_type_without_ref = expected_type.remove_ref()?;
+ if completion_ty.autoderef(ctx.db).any(|deref_ty| deref_ty == expected_type_without_ref) {
+ cov_mark::hit!(suggest_ref);
+ let mutability = if expected_type.is_mutable_reference() {
+ hir::Mutability::Mut
+ } else {
+ hir::Mutability::Shared
+ };
+ return Some(mutability);
+ };
+ }
+ None
+}
+
+#[cfg(test)]
+mod tests {
+ use std::cmp;
+
+ use expect_test::{expect, Expect};
+ use ide_db::SymbolKind;
+ use itertools::Itertools;
+
+ use crate::{
+ item::CompletionRelevanceTypeMatch,
+ tests::{check_edit, do_completion, get_all_items, TEST_CONFIG},
+ CompletionItem, CompletionItemKind, CompletionRelevance, CompletionRelevancePostfixMatch,
+ };
+
+ #[track_caller]
+ fn check(ra_fixture: &str, kind: impl Into<CompletionItemKind>, expect: Expect) {
+ let actual = do_completion(ra_fixture, kind.into());
+ expect.assert_debug_eq(&actual);
+ }
+
+ #[track_caller]
+ fn check_kinds(ra_fixture: &str, kinds: &[CompletionItemKind], expect: Expect) {
+ let actual: Vec<_> =
+ kinds.iter().flat_map(|&kind| do_completion(ra_fixture, kind)).collect();
+ expect.assert_debug_eq(&actual);
+ }
+
+ #[track_caller]
+ fn check_relevance_for_kinds(ra_fixture: &str, kinds: &[CompletionItemKind], expect: Expect) {
+ let mut actual = get_all_items(TEST_CONFIG, ra_fixture, None);
+ actual.retain(|it| kinds.contains(&it.kind()));
+ actual.sort_by_key(|it| cmp::Reverse(it.relevance().score()));
+ check_relevance_(actual, expect);
+ }
+
+ #[track_caller]
+ fn check_relevance(ra_fixture: &str, expect: Expect) {
+ let mut actual = get_all_items(TEST_CONFIG, ra_fixture, None);
+ actual.retain(|it| it.kind() != CompletionItemKind::Snippet);
+ actual.retain(|it| it.kind() != CompletionItemKind::Keyword);
+ actual.retain(|it| it.kind() != CompletionItemKind::BuiltinType);
+ actual.sort_by_key(|it| cmp::Reverse(it.relevance().score()));
+ check_relevance_(actual, expect);
+ }
+
+ #[track_caller]
+ fn check_relevance_(actual: Vec<CompletionItem>, expect: Expect) {
+ let actual = actual
+ .into_iter()
+ .flat_map(|it| {
+ let mut items = vec![];
+
+ let tag = it.kind().tag();
+ let relevance = display_relevance(it.relevance());
+ items.push(format!("{} {} {}\n", tag, it.label(), relevance));
+
+ if let Some((mutability, _offset, relevance)) = it.ref_match() {
+ let label = format!("&{}{}", mutability.as_keyword_for_ref(), it.label());
+ let relevance = display_relevance(relevance);
+
+ items.push(format!("{} {} {}\n", tag, label, relevance));
+ }
+
+ items
+ })
+ .collect::<String>();
+
+ expect.assert_eq(&actual);
+
+ fn display_relevance(relevance: CompletionRelevance) -> String {
+ let relevance_factors = vec![
+ (relevance.type_match == Some(CompletionRelevanceTypeMatch::Exact), "type"),
+ (
+ relevance.type_match == Some(CompletionRelevanceTypeMatch::CouldUnify),
+ "type_could_unify",
+ ),
+ (relevance.exact_name_match, "name"),
+ (relevance.is_local, "local"),
+ (
+ relevance.postfix_match == Some(CompletionRelevancePostfixMatch::Exact),
+ "snippet",
+ ),
+ (relevance.is_op_method, "op_method"),
+ (relevance.requires_import, "requires_import"),
+ ]
+ .into_iter()
+ .filter_map(|(cond, desc)| if cond { Some(desc) } else { None })
+ .join("+");
+
+ format!("[{}]", relevance_factors)
+ }
+ }
+
+ #[test]
+ fn enum_detail_includes_record_fields() {
+ check(
+ r#"
+enum Foo { Foo { x: i32, y: i32 } }
+
+fn main() { Foo::Fo$0 }
+"#,
+ SymbolKind::Variant,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "Foo {…}",
+ source_range: 54..56,
+ delete: 54..56,
+ insert: "Foo { x: ${1:()}, y: ${2:()} }$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ detail: "Foo { x: i32, y: i32 }",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn enum_detail_includes_tuple_fields() {
+ check(
+ r#"
+enum Foo { Foo (i32, i32) }
+
+fn main() { Foo::Fo$0 }
+"#,
+ SymbolKind::Variant,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "Foo(…)",
+ source_range: 46..48,
+ delete: 46..48,
+ insert: "Foo(${1:()}, ${2:()})$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ detail: "Foo(i32, i32)",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn fn_detail_includes_args_and_return_type() {
+ check(
+ r#"
+fn foo<T>(a: u32, b: u32, t: T) -> (u32, T) { (a, t) }
+
+fn main() { fo$0 }
+"#,
+ SymbolKind::Function,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "foo(…)",
+ source_range: 68..70,
+ delete: 68..70,
+ insert: "foo(${1:a}, ${2:b}, ${3:t})$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "foo",
+ detail: "fn(u32, u32, T) -> (u32, T)",
+ trigger_call_info: true,
+ },
+ CompletionItem {
+ label: "main()",
+ source_range: 68..70,
+ delete: 68..70,
+ insert: "main()$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "main",
+ detail: "fn()",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn enum_detail_just_name_for_unit() {
+ check(
+ r#"
+enum Foo { Foo }
+
+fn main() { Foo::Fo$0 }
+"#,
+ SymbolKind::Variant,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "Foo",
+ source_range: 35..37,
+ delete: 35..37,
+ insert: "Foo$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ detail: "Foo",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn lookup_enums_by_two_qualifiers() {
+ check_kinds(
+ r#"
+mod m {
+ pub enum Spam { Foo, Bar(i32) }
+}
+fn main() { let _: m::Spam = S$0 }
+"#,
+ &[
+ CompletionItemKind::SymbolKind(SymbolKind::Function),
+ CompletionItemKind::SymbolKind(SymbolKind::Module),
+ CompletionItemKind::SymbolKind(SymbolKind::Variant),
+ ],
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "main()",
+ source_range: 75..76,
+ delete: 75..76,
+ insert: "main()$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "main",
+ detail: "fn()",
+ },
+ CompletionItem {
+ label: "m",
+ source_range: 75..76,
+ delete: 75..76,
+ insert: "m",
+ kind: SymbolKind(
+ Module,
+ ),
+ },
+ CompletionItem {
+ label: "m::Spam::Bar(…)",
+ source_range: 75..76,
+ delete: 75..76,
+ insert: "m::Spam::Bar(${1:()})$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ lookup: "Spam::Bar(…)",
+ detail: "m::Spam::Bar(i32)",
+ relevance: CompletionRelevance {
+ exact_name_match: false,
+ type_match: Some(
+ Exact,
+ ),
+ is_local: false,
+ is_item_from_trait: false,
+ is_name_already_imported: false,
+ requires_import: false,
+ is_op_method: false,
+ is_private_editable: false,
+ postfix_match: None,
+ is_definite: false,
+ },
+ },
+ CompletionItem {
+ label: "m::Spam::Foo",
+ source_range: 75..76,
+ delete: 75..76,
+ insert: "m::Spam::Foo$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ lookup: "Spam::Foo",
+ detail: "m::Spam::Foo",
+ relevance: CompletionRelevance {
+ exact_name_match: false,
+ type_match: Some(
+ Exact,
+ ),
+ is_local: false,
+ is_item_from_trait: false,
+ is_name_already_imported: false,
+ requires_import: false,
+ is_op_method: false,
+ is_private_editable: false,
+ postfix_match: None,
+ is_definite: false,
+ },
+ },
+ ]
+ "#]],
+ )
+ }
+
+ #[test]
+ fn sets_deprecated_flag_in_items() {
+ check(
+ r#"
+#[deprecated]
+fn something_deprecated() {}
+
+fn main() { som$0 }
+"#,
+ SymbolKind::Function,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "main()",
+ source_range: 56..59,
+ delete: 56..59,
+ insert: "main()$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "main",
+ detail: "fn()",
+ },
+ CompletionItem {
+ label: "something_deprecated()",
+ source_range: 56..59,
+ delete: 56..59,
+ insert: "something_deprecated()$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "something_deprecated",
+ detail: "fn()",
+ deprecated: true,
+ },
+ ]
+ "#]],
+ );
+
+ check(
+ r#"
+struct A { #[deprecated] the_field: u32 }
+fn foo() { A { the$0 } }
+"#,
+ SymbolKind::Field,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "the_field",
+ source_range: 57..60,
+ delete: 57..60,
+ insert: "the_field",
+ kind: SymbolKind(
+ Field,
+ ),
+ detail: "u32",
+ deprecated: true,
+ relevance: CompletionRelevance {
+ exact_name_match: false,
+ type_match: Some(
+ CouldUnify,
+ ),
+ is_local: false,
+ is_item_from_trait: false,
+ is_name_already_imported: false,
+ requires_import: false,
+ is_op_method: false,
+ is_private_editable: false,
+ postfix_match: None,
+ is_definite: false,
+ },
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn renders_docs() {
+ check_kinds(
+ r#"
+struct S {
+ /// Field docs
+ foo:
+}
+impl S {
+ /// Method docs
+ fn bar(self) { self.$0 }
+}"#,
+ &[CompletionItemKind::Method, CompletionItemKind::SymbolKind(SymbolKind::Field)],
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "bar()",
+ source_range: 94..94,
+ delete: 94..94,
+ insert: "bar()$0",
+ kind: Method,
+ lookup: "bar",
+ detail: "fn(self)",
+ documentation: Documentation(
+ "Method docs",
+ ),
+ },
+ CompletionItem {
+ label: "foo",
+ source_range: 94..94,
+ delete: 94..94,
+ insert: "foo",
+ kind: SymbolKind(
+ Field,
+ ),
+ detail: "{unknown}",
+ documentation: Documentation(
+ "Field docs",
+ ),
+ },
+ ]
+ "#]],
+ );
+
+ check_kinds(
+ r#"
+use self::my$0;
+
+/// mod docs
+mod my { }
+
+/// enum docs
+enum E {
+ /// variant docs
+ V
+}
+use self::E::*;
+"#,
+ &[
+ CompletionItemKind::SymbolKind(SymbolKind::Module),
+ CompletionItemKind::SymbolKind(SymbolKind::Variant),
+ CompletionItemKind::SymbolKind(SymbolKind::Enum),
+ ],
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "my",
+ source_range: 10..12,
+ delete: 10..12,
+ insert: "my",
+ kind: SymbolKind(
+ Module,
+ ),
+ documentation: Documentation(
+ "mod docs",
+ ),
+ },
+ CompletionItem {
+ label: "V",
+ source_range: 10..12,
+ delete: 10..12,
+ insert: "V$0",
+ kind: SymbolKind(
+ Variant,
+ ),
+ detail: "V",
+ documentation: Documentation(
+ "variant docs",
+ ),
+ },
+ CompletionItem {
+ label: "E",
+ source_range: 10..12,
+ delete: 10..12,
+ insert: "E",
+ kind: SymbolKind(
+ Enum,
+ ),
+ documentation: Documentation(
+ "enum docs",
+ ),
+ },
+ ]
+ "#]],
+ )
+ }
+
+ #[test]
+ fn dont_render_attrs() {
+ check(
+ r#"
+struct S;
+impl S {
+ #[inline]
+ fn the_method(&self) { }
+}
+fn foo(s: S) { s.$0 }
+"#,
+ CompletionItemKind::Method,
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "the_method()",
+ source_range: 81..81,
+ delete: 81..81,
+ insert: "the_method()$0",
+ kind: Method,
+ lookup: "the_method",
+ detail: "fn(&self)",
+ },
+ ]
+ "#]],
+ )
+ }
+
+ #[test]
+ fn no_call_parens_if_fn_ptr_needed() {
+ cov_mark::check!(no_call_parens_if_fn_ptr_needed);
+ check_edit(
+ "foo",
+ r#"
+fn foo(foo: u8, bar: u8) {}
+struct ManualVtable { f: fn(u8, u8) }
+
+fn main() -> ManualVtable {
+ ManualVtable { f: f$0 }
+}
+"#,
+ r#"
+fn foo(foo: u8, bar: u8) {}
+struct ManualVtable { f: fn(u8, u8) }
+
+fn main() -> ManualVtable {
+ ManualVtable { f: foo }
+}
+"#,
+ );
+ check_edit(
+ "type",
+ r#"
+struct RawIdentTable { r#type: u32 }
+
+fn main() -> RawIdentTable {
+ RawIdentTable { t$0: 42 }
+}
+"#,
+ r#"
+struct RawIdentTable { r#type: u32 }
+
+fn main() -> RawIdentTable {
+ RawIdentTable { r#type: 42 }
+}
+"#,
+ );
+ }
+
+ #[test]
+ fn no_parens_in_use_item() {
+ check_edit(
+ "foo",
+ r#"
+mod m { pub fn foo() {} }
+use crate::m::f$0;
+"#,
+ r#"
+mod m { pub fn foo() {} }
+use crate::m::foo;
+"#,
+ );
+ }
+
+ #[test]
+ fn no_parens_in_call() {
+ check_edit(
+ "foo",
+ r#"
+fn foo(x: i32) {}
+fn main() { f$0(); }
+"#,
+ r#"
+fn foo(x: i32) {}
+fn main() { foo(); }
+"#,
+ );
+ check_edit(
+ "foo",
+ r#"
+struct Foo;
+impl Foo { fn foo(&self){} }
+fn f(foo: &Foo) { foo.f$0(); }
+"#,
+ r#"
+struct Foo;
+impl Foo { fn foo(&self){} }
+fn f(foo: &Foo) { foo.foo(); }
+"#,
+ );
+ }
+
+ #[test]
+ fn inserts_angle_brackets_for_generics() {
+ cov_mark::check!(inserts_angle_brackets_for_generics);
+ check_edit(
+ "Vec",
+ r#"
+struct Vec<T> {}
+fn foo(xs: Ve$0)
+"#,
+ r#"
+struct Vec<T> {}
+fn foo(xs: Vec<$0>)
+"#,
+ );
+ check_edit(
+ "Vec",
+ r#"
+type Vec<T> = (T,);
+fn foo(xs: Ve$0)
+"#,
+ r#"
+type Vec<T> = (T,);
+fn foo(xs: Vec<$0>)
+"#,
+ );
+ check_edit(
+ "Vec",
+ r#"
+struct Vec<T = i128> {}
+fn foo(xs: Ve$0)
+"#,
+ r#"
+struct Vec<T = i128> {}
+fn foo(xs: Vec)
+"#,
+ );
+ check_edit(
+ "Vec",
+ r#"
+struct Vec<T> {}
+fn foo(xs: Ve$0<i128>)
+"#,
+ r#"
+struct Vec<T> {}
+fn foo(xs: Vec<i128>)
+"#,
+ );
+ }
+
+ #[test]
+ fn active_param_relevance() {
+ check_relevance(
+ r#"
+struct S { foo: i64, bar: u32, baz: u32 }
+fn test(bar: u32) { }
+fn foo(s: S) { test(s.$0) }
+"#,
+ expect![[r#"
+ fd bar [type+name]
+ fd baz [type]
+ fd foo []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn record_field_relevances() {
+ check_relevance(
+ r#"
+struct A { foo: i64, bar: u32, baz: u32 }
+struct B { x: (), y: f32, bar: u32 }
+fn foo(a: A) { B { bar: a.$0 }; }
+"#,
+ expect![[r#"
+ fd bar [type+name]
+ fd baz [type]
+ fd foo []
+ "#]],
+ )
+ }
+
+ #[test]
+ fn record_field_and_call_relevances() {
+ check_relevance(
+ r#"
+struct A { foo: i64, bar: u32, baz: u32 }
+struct B { x: (), y: f32, bar: u32 }
+fn f(foo: i64) { }
+fn foo(a: A) { B { bar: f(a.$0) }; }
+"#,
+ expect![[r#"
+ fd foo [type+name]
+ fd bar []
+ fd baz []
+ "#]],
+ );
+ check_relevance(
+ r#"
+struct A { foo: i64, bar: u32, baz: u32 }
+struct B { x: (), y: f32, bar: u32 }
+fn f(foo: i64) { }
+fn foo(a: A) { f(B { bar: a.$0 }); }
+"#,
+ expect![[r#"
+ fd bar [type+name]
+ fd baz [type]
+ fd foo []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn prioritize_exact_ref_match() {
+ check_relevance(
+ r#"
+struct WorldSnapshot { _f: () };
+fn go(world: &WorldSnapshot) { go(w$0) }
+"#,
+ expect![[r#"
+ lc world [type+name+local]
+ st WorldSnapshot {…} []
+ st &WorldSnapshot {…} [type]
+ st WorldSnapshot []
+ fn go(…) []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn too_many_arguments() {
+ cov_mark::check!(too_many_arguments);
+ check_relevance(
+ r#"
+struct Foo;
+fn f(foo: &Foo) { f(foo, w$0) }
+"#,
+ expect![[r#"
+ lc foo [local]
+ st Foo []
+ fn f(…) []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn score_fn_type_and_name_match() {
+ check_relevance(
+ r#"
+struct A { bar: u8 }
+fn baz() -> u8 { 0 }
+fn bar() -> u8 { 0 }
+fn f() { A { bar: b$0 }; }
+"#,
+ expect![[r#"
+ fn bar() [type+name]
+ fn baz() [type]
+ st A []
+ fn f() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn score_method_type_and_name_match() {
+ check_relevance(
+ r#"
+fn baz(aaa: u32){}
+struct Foo;
+impl Foo {
+fn aaa(&self) -> u32 { 0 }
+fn bbb(&self) -> u32 { 0 }
+fn ccc(&self) -> u64 { 0 }
+}
+fn f() {
+ baz(Foo.$0
+}
+"#,
+ expect![[r#"
+ me aaa() [type+name]
+ me bbb() [type]
+ me ccc() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn score_method_name_match_only() {
+ check_relevance(
+ r#"
+fn baz(aaa: u32){}
+struct Foo;
+impl Foo {
+fn aaa(&self) -> u64 { 0 }
+}
+fn f() {
+ baz(Foo.$0
+}
+"#,
+ expect![[r#"
+ me aaa() [name]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn suggest_ref_mut() {
+ cov_mark::check!(suggest_ref);
+ check_relevance(
+ r#"
+struct S;
+fn foo(s: &mut S) {}
+fn main() {
+ let mut s = S;
+ foo($0);
+}
+ "#,
+ expect![[r#"
+ lc s [name+local]
+ lc &mut s [type+name+local]
+ st S []
+ st &mut S [type]
+ st S []
+ fn foo(…) []
+ fn main() []
+ "#]],
+ );
+ check_relevance(
+ r#"
+struct S;
+fn foo(s: &mut S) {}
+fn main() {
+ let mut s = S;
+ foo(&mut $0);
+}
+ "#,
+ expect![[r#"
+ lc s [type+name+local]
+ st S [type]
+ st S []
+ fn foo(…) []
+ fn main() []
+ "#]],
+ );
+ check_relevance(
+ r#"
+struct S;
+fn foo(s: &mut S) {}
+fn main() {
+ let mut ssss = S;
+ foo(&mut s$0);
+}
+ "#,
+ expect![[r#"
+ lc ssss [type+local]
+ st S [type]
+ st S []
+ fn foo(…) []
+ fn main() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn suggest_deref() {
+ check_relevance(
+ r#"
+//- minicore: deref
+struct S;
+struct T(S);
+
+impl core::ops::Deref for T {
+ type Target = S;
+
+ fn deref(&self) -> &Self::Target {
+ &self.0
+ }
+}
+
+fn foo(s: &S) {}
+
+fn main() {
+ let t = T(S);
+ let m = 123;
+
+ foo($0);
+}
+ "#,
+ expect![[r#"
+ lc m [local]
+ lc t [local]
+ lc &t [type+local]
+ st S []
+ st &S [type]
+ st S []
+ st T []
+ fn foo(…) []
+ fn main() []
+ md core []
+ "#]],
+ )
+ }
+
+ #[test]
+ fn suggest_deref_mut() {
+ check_relevance(
+ r#"
+//- minicore: deref_mut
+struct S;
+struct T(S);
+
+impl core::ops::Deref for T {
+ type Target = S;
+
+ fn deref(&self) -> &Self::Target {
+ &self.0
+ }
+}
+
+impl core::ops::DerefMut for T {
+ fn deref_mut(&mut self) -> &mut Self::Target {
+ &mut self.0
+ }
+}
+
+fn foo(s: &mut S) {}
+
+fn main() {
+ let t = T(S);
+ let m = 123;
+
+ foo($0);
+}
+ "#,
+ expect![[r#"
+ lc m [local]
+ lc t [local]
+ lc &mut t [type+local]
+ st S []
+ st &mut S [type]
+ st S []
+ st T []
+ fn foo(…) []
+ fn main() []
+ md core []
+ "#]],
+ )
+ }
+
+ #[test]
+ fn locals() {
+ check_relevance(
+ r#"
+fn foo(bar: u32) {
+ let baz = 0;
+
+ f$0
+}
+"#,
+ expect![[r#"
+ lc baz [local]
+ lc bar [local]
+ fn foo(…) []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn enum_owned() {
+ check_relevance(
+ r#"
+enum Foo { A, B }
+fn foo() {
+ bar($0);
+}
+fn bar(t: Foo) {}
+"#,
+ expect![[r#"
+ ev Foo::A [type]
+ ev Foo::B [type]
+ en Foo []
+ fn bar(…) []
+ fn foo() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn enum_ref() {
+ check_relevance(
+ r#"
+enum Foo { A, B }
+fn foo() {
+ bar($0);
+}
+fn bar(t: &Foo) {}
+"#,
+ expect![[r#"
+ ev Foo::A []
+ ev &Foo::A [type]
+ ev Foo::B []
+ ev &Foo::B [type]
+ en Foo []
+ fn bar(…) []
+ fn foo() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn suggest_deref_fn_ret() {
+ check_relevance(
+ r#"
+//- minicore: deref
+struct S;
+struct T(S);
+
+impl core::ops::Deref for T {
+ type Target = S;
+
+ fn deref(&self) -> &Self::Target {
+ &self.0
+ }
+}
+
+fn foo(s: &S) {}
+fn bar() -> T {}
+
+fn main() {
+ foo($0);
+}
+"#,
+ expect![[r#"
+ st S []
+ st &S [type]
+ st S []
+ st T []
+ fn bar() []
+ fn &bar() [type]
+ fn foo(…) []
+ fn main() []
+ md core []
+ "#]],
+ )
+ }
+
+ #[test]
+ fn op_function_relevances() {
+ check_relevance(
+ r#"
+#[lang = "sub"]
+trait Sub {
+ fn sub(self, other: Self) -> Self { self }
+}
+impl Sub for u32 {}
+fn foo(a: u32) { a.$0 }
+"#,
+ expect![[r#"
+ me sub(…) (as Sub) [op_method]
+ "#]],
+ );
+ check_relevance(
+ r#"
+struct Foo;
+impl Foo {
+ fn new() -> Self {}
+}
+#[lang = "eq"]
+pub trait PartialEq<Rhs: ?Sized = Self> {
+ fn eq(&self, other: &Rhs) -> bool;
+ fn ne(&self, other: &Rhs) -> bool;
+}
+
+impl PartialEq for Foo {}
+fn main() {
+ Foo::$0
+}
+"#,
+ expect![[r#"
+ fn new() []
+ me eq(…) (as PartialEq) [op_method]
+ me ne(…) (as PartialEq) [op_method]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn struct_field_method_ref() {
+ check_kinds(
+ r#"
+struct Foo { bar: u32 }
+impl Foo { fn baz(&self) -> u32 { 0 } }
+
+fn foo(f: Foo) { let _: &u32 = f.b$0 }
+"#,
+ &[CompletionItemKind::Method, CompletionItemKind::SymbolKind(SymbolKind::Field)],
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "baz()",
+ source_range: 98..99,
+ delete: 98..99,
+ insert: "baz()$0",
+ kind: Method,
+ lookup: "baz",
+ detail: "fn(&self) -> u32",
+ ref_match: "&@96",
+ },
+ CompletionItem {
+ label: "bar",
+ source_range: 98..99,
+ delete: 98..99,
+ insert: "bar",
+ kind: SymbolKind(
+ Field,
+ ),
+ detail: "u32",
+ ref_match: "&@96",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn qualified_path_ref() {
+ check_kinds(
+ r#"
+struct S;
+
+struct T;
+impl T {
+ fn foo() -> S {}
+}
+
+fn bar(s: &S) {}
+
+fn main() {
+ bar(T::$0);
+}
+"#,
+ &[CompletionItemKind::SymbolKind(SymbolKind::Function)],
+ expect![[r#"
+ [
+ CompletionItem {
+ label: "foo()",
+ source_range: 95..95,
+ delete: 95..95,
+ insert: "foo()$0",
+ kind: SymbolKind(
+ Function,
+ ),
+ lookup: "foo",
+ detail: "fn() -> S",
+ ref_match: "&@92",
+ },
+ ]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn generic_enum() {
+ check_relevance(
+ r#"
+enum Foo<T> { A(T), B }
+// bar() should not be an exact type match
+// because the generic parameters are different
+fn bar() -> Foo<u8> { Foo::B }
+// FIXME baz() should be an exact type match
+// because the types could unify, but it currently
+// is not. This is due to the T here being
+// TyKind::Placeholder rather than TyKind::Missing.
+fn baz<T>() -> Foo<T> { Foo::B }
+fn foo() {
+ let foo: Foo<u32> = Foo::B;
+ let _: Foo<u32> = f$0;
+}
+"#,
+ expect![[r#"
+ lc foo [type+local]
+ ev Foo::A(…) [type_could_unify]
+ ev Foo::B [type_could_unify]
+ fn foo() []
+ en Foo []
+ fn bar() []
+ fn baz() []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn postfix_exact_match_is_high_priority() {
+ cov_mark::check!(postfix_exact_match_is_high_priority);
+ check_relevance_for_kinds(
+ r#"
+mod ops {
+ pub trait Not {
+ type Output;
+ fn not(self) -> Self::Output;
+ }
+
+ impl Not for bool {
+ type Output = bool;
+ fn not(self) -> bool { if self { false } else { true }}
+ }
+}
+
+fn main() {
+ let _: bool = (9 > 2).not$0;
+}
+ "#,
+ &[CompletionItemKind::Snippet, CompletionItemKind::Method],
+ expect![[r#"
+ sn not [snippet]
+ me not() (use ops::Not) [type_could_unify+requires_import]
+ sn if []
+ sn while []
+ sn ref []
+ sn refm []
+ sn match []
+ sn box []
+ sn dbg []
+ sn dbgr []
+ sn call []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn postfix_inexact_match_is_low_priority() {
+ cov_mark::check!(postfix_inexact_match_is_low_priority);
+ check_relevance_for_kinds(
+ r#"
+struct S;
+impl S {
+ fn f(&self) {}
+}
+fn main() {
+ S.$0
+}
+ "#,
+ &[CompletionItemKind::Snippet, CompletionItemKind::Method],
+ expect![[r#"
+ me f() []
+ sn ref []
+ sn refm []
+ sn match []
+ sn box []
+ sn dbg []
+ sn dbgr []
+ sn call []
+ sn let []
+ sn letm []
+ "#]],
+ );
+ }
+
+ #[test]
+ fn flyimport_reduced_relevance() {
+ check_relevance(
+ r#"
+mod std {
+ pub mod io {
+ pub trait BufRead {}
+ pub struct BufReader;
+ pub struct BufWriter;
+ }
+}
+struct Buffer;
+
+fn f() {
+ Buf$0
+}
+"#,
+ expect![[r#"
+ st Buffer []
+ fn f() []
+ md std []
+ tt BufRead (use std::io::BufRead) [requires_import]
+ st BufReader (use std::io::BufReader) [requires_import]
+ st BufWriter (use std::io::BufWriter) [requires_import]
+ "#]],
+ );
+ }
+
+ #[test]
+ fn completes_struct_with_raw_identifier() {
+ check_edit(
+ "type",
+ r#"
+mod m { pub struct r#type {} }
+fn main() {
+ let r#type = m::t$0;
+}
+"#,
+ r#"
+mod m { pub struct r#type {} }
+fn main() {
+ let r#type = m::r#type;
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_fn_with_raw_identifier() {
+ check_edit(
+ "type",
+ r#"
+mod m { pub fn r#type {} }
+fn main() {
+ m::t$0
+}
+"#,
+ r#"
+mod m { pub fn r#type {} }
+fn main() {
+ m::r#type()$0
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_macro_with_raw_identifier() {
+ check_edit(
+ "let!",
+ r#"
+macro_rules! r#let { () => {} }
+fn main() {
+ $0
+}
+"#,
+ r#"
+macro_rules! r#let { () => {} }
+fn main() {
+ r#let!($0)
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_variant_with_raw_identifier() {
+ check_edit(
+ "type",
+ r#"
+enum A { r#type }
+fn main() {
+ let a = A::t$0
+}
+"#,
+ r#"
+enum A { r#type }
+fn main() {
+ let a = A::r#type$0
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_field_with_raw_identifier() {
+ check_edit(
+ "fn",
+ r#"
+mod r#type {
+ pub struct r#struct {
+ pub r#fn: u32
+ }
+}
+
+fn main() {
+ let a = r#type::r#struct {};
+ a.$0
+}
+"#,
+ r#"
+mod r#type {
+ pub struct r#struct {
+ pub r#fn: u32
+ }
+}
+
+fn main() {
+ let a = r#type::r#struct {};
+ a.r#fn
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_const_with_raw_identifier() {
+ check_edit(
+ "type",
+ r#"
+struct r#struct {}
+impl r#struct { pub const r#type: u8 = 1; }
+fn main() {
+ r#struct::t$0
+}
+"#,
+ r#"
+struct r#struct {}
+impl r#struct { pub const r#type: u8 = 1; }
+fn main() {
+ r#struct::r#type
+}
+"#,
+ )
+ }
+
+ #[test]
+ fn completes_type_alias_with_raw_identifier() {
+ check_edit(
+ "type type",
+ r#"
+struct r#struct {}
+trait r#trait { type r#type; }
+impl r#trait for r#struct { type t$0 }
+"#,
+ r#"
+struct r#struct {}
+trait r#trait { type r#type; }
+impl r#trait for r#struct { type r#type = $0; }
+"#,
+ )
+ }
+
+ #[test]
+ fn field_access_includes_self() {
+ check_edit(
+ "length",
+ r#"
+struct S {
+ length: i32
+}
+
+impl S {
+ fn some_fn(&self) {
+ let l = len$0
+ }
+}
+"#,
+ r#"
+struct S {
+ length: i32
+}
+
+impl S {
+ fn some_fn(&self) {
+ let l = self.length
+ }
+}
+"#,
+ )
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-28 05:56:25 +0000