946 lines
28 KiB
Rust
946 lines
28 KiB
Rust
//! `render` module provides utilities for rendering completion suggestions
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//! into code pieces that will be presented to user.
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pub(crate) mod macro_;
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pub(crate) mod function;
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pub(crate) mod enum_variant;
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pub(crate) mod const_;
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pub(crate) mod pattern;
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pub(crate) mod type_alias;
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mod builder_ext;
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use hir::{
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AsAssocItem, Documentation, HasAttrs, HirDisplay, ModuleDef, Mutability, ScopeDef, Type,
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};
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use ide_db::{helpers::SnippetCap, RootDatabase, SymbolKind};
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use syntax::TextRange;
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use test_utils::mark;
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use crate::{
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item::ImportEdit, CompletionContext, CompletionItem, CompletionItemKind, CompletionKind,
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CompletionScore,
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};
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use crate::render::{enum_variant::render_variant, function::render_fn, macro_::render_macro};
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pub(crate) fn render_field<'a>(
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ctx: RenderContext<'a>,
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field: hir::Field,
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ty: &Type,
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) -> CompletionItem {
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Render::new(ctx).add_field(field, ty)
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}
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pub(crate) fn render_tuple_field<'a>(
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ctx: RenderContext<'a>,
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field: usize,
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ty: &Type,
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) -> CompletionItem {
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Render::new(ctx).add_tuple_field(field, ty)
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}
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pub(crate) fn render_resolution<'a>(
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ctx: RenderContext<'a>,
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local_name: String,
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resolution: &ScopeDef,
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) -> Option<CompletionItem> {
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Render::new(ctx).render_resolution(local_name, None, resolution)
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}
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pub(crate) fn render_resolution_with_import<'a>(
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ctx: RenderContext<'a>,
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import_edit: ImportEdit,
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resolution: &ScopeDef,
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) -> Option<CompletionItem> {
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let local_name = match resolution {
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ScopeDef::ModuleDef(ModuleDef::Function(f)) => f.name(ctx.completion.db).to_string(),
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ScopeDef::ModuleDef(ModuleDef::Const(c)) => c.name(ctx.completion.db)?.to_string(),
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ScopeDef::ModuleDef(ModuleDef::TypeAlias(t)) => t.name(ctx.completion.db).to_string(),
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_ => import_edit.import_path.segments().last()?.to_string(),
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};
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Render::new(ctx).render_resolution(local_name, Some(import_edit), resolution).map(|mut item| {
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item.completion_kind = CompletionKind::Magic;
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item
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})
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}
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/// Interface for data and methods required for items rendering.
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#[derive(Debug)]
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pub(crate) struct RenderContext<'a> {
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completion: &'a CompletionContext<'a>,
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}
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impl<'a> RenderContext<'a> {
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pub(crate) fn new(completion: &'a CompletionContext<'a>) -> RenderContext<'a> {
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RenderContext { completion }
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}
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fn snippet_cap(&self) -> Option<SnippetCap> {
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self.completion.config.snippet_cap.clone()
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}
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fn db(&self) -> &'a RootDatabase {
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&self.completion.db
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}
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fn source_range(&self) -> TextRange {
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self.completion.source_range()
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}
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fn is_deprecated(&self, node: impl HasAttrs) -> bool {
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let attrs = node.attrs(self.db());
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attrs.by_key("deprecated").exists() || attrs.by_key("rustc_deprecated").exists()
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}
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fn is_deprecated_assoc_item(&self, as_assoc_item: impl AsAssocItem) -> bool {
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let db = self.db();
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let assoc = match as_assoc_item.as_assoc_item(db) {
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Some(assoc) => assoc,
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None => return false,
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};
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let is_assoc_deprecated = match assoc {
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hir::AssocItem::Function(it) => self.is_deprecated(it),
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hir::AssocItem::Const(it) => self.is_deprecated(it),
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hir::AssocItem::TypeAlias(it) => self.is_deprecated(it),
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};
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is_assoc_deprecated
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|| assoc.containing_trait(db).map(|trait_| self.is_deprecated(trait_)).unwrap_or(false)
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}
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fn docs(&self, node: impl HasAttrs) -> Option<Documentation> {
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node.docs(self.db())
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}
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fn active_name_and_type(&self) -> Option<(String, Type)> {
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if let Some(record_field) = &self.completion.record_field_syntax {
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mark::hit!(record_field_type_match);
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let (struct_field, _local) = self.completion.sema.resolve_record_field(record_field)?;
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Some((struct_field.name(self.db()).to_string(), struct_field.signature_ty(self.db())))
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} else if let Some(active_parameter) = &self.completion.active_parameter {
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mark::hit!(active_param_type_match);
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Some((active_parameter.name.clone(), active_parameter.ty.clone()))
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} else {
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None
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}
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}
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}
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/// Generic renderer for completion items.
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#[derive(Debug)]
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struct Render<'a> {
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ctx: RenderContext<'a>,
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}
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impl<'a> Render<'a> {
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fn new(ctx: RenderContext<'a>) -> Render<'a> {
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Render { ctx }
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}
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fn add_field(&mut self, field: hir::Field, ty: &Type) -> CompletionItem {
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let is_deprecated = self.ctx.is_deprecated(field);
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let name = field.name(self.ctx.db());
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let mut item = CompletionItem::new(
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CompletionKind::Reference,
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self.ctx.source_range(),
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name.to_string(),
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)
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.kind(SymbolKind::Field)
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.detail(ty.display(self.ctx.db()).to_string())
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.set_documentation(field.docs(self.ctx.db()))
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.set_deprecated(is_deprecated);
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if let Some(score) = compute_score(&self.ctx, &ty, &name.to_string()) {
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item = item.set_score(score);
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}
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item.build()
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}
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fn add_tuple_field(&mut self, field: usize, ty: &Type) -> CompletionItem {
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CompletionItem::new(CompletionKind::Reference, self.ctx.source_range(), field.to_string())
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.kind(SymbolKind::Field)
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.detail(ty.display(self.ctx.db()).to_string())
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.build()
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}
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fn render_resolution(
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self,
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local_name: String,
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import_to_add: Option<ImportEdit>,
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resolution: &ScopeDef,
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) -> Option<CompletionItem> {
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let _p = profile::span("render_resolution");
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use hir::ModuleDef::*;
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let completion_kind = match resolution {
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ScopeDef::ModuleDef(BuiltinType(..)) => CompletionKind::BuiltinType,
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_ => CompletionKind::Reference,
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};
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let kind = match resolution {
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ScopeDef::ModuleDef(Function(func)) => {
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return render_fn(self.ctx, import_to_add, Some(local_name), *func);
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}
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ScopeDef::ModuleDef(Variant(_))
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if self.ctx.completion.is_pat_binding_or_const
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| self.ctx.completion.is_irrefutable_pat_binding =>
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{
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CompletionItemKind::SymbolKind(SymbolKind::Variant)
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}
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ScopeDef::ModuleDef(Variant(var)) => {
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let item = render_variant(self.ctx, import_to_add, Some(local_name), *var, None);
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return Some(item);
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}
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ScopeDef::MacroDef(mac) => {
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let item = render_macro(self.ctx, import_to_add, local_name, *mac);
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return item;
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}
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ScopeDef::ModuleDef(Module(..)) => CompletionItemKind::SymbolKind(SymbolKind::Module),
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ScopeDef::ModuleDef(Adt(adt)) => CompletionItemKind::SymbolKind(match adt {
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hir::Adt::Struct(_) => SymbolKind::Struct,
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hir::Adt::Union(_) => SymbolKind::Union,
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hir::Adt::Enum(_) => SymbolKind::Enum,
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}),
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ScopeDef::ModuleDef(Const(..)) => CompletionItemKind::SymbolKind(SymbolKind::Const),
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ScopeDef::ModuleDef(Static(..)) => CompletionItemKind::SymbolKind(SymbolKind::Static),
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ScopeDef::ModuleDef(Trait(..)) => CompletionItemKind::SymbolKind(SymbolKind::Trait),
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ScopeDef::ModuleDef(TypeAlias(..)) => {
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CompletionItemKind::SymbolKind(SymbolKind::TypeAlias)
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}
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ScopeDef::ModuleDef(BuiltinType(..)) => CompletionItemKind::BuiltinType,
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ScopeDef::GenericParam(param) => CompletionItemKind::SymbolKind(match param {
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hir::GenericParam::TypeParam(_) => SymbolKind::TypeParam,
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hir::GenericParam::LifetimeParam(_) => SymbolKind::LifetimeParam,
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hir::GenericParam::ConstParam(_) => SymbolKind::ConstParam,
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}),
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ScopeDef::Local(..) => CompletionItemKind::SymbolKind(SymbolKind::Local),
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ScopeDef::AdtSelfType(..) | ScopeDef::ImplSelfType(..) => {
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CompletionItemKind::SymbolKind(SymbolKind::SelfParam)
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}
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ScopeDef::Unknown => {
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let item = CompletionItem::new(
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CompletionKind::Reference,
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self.ctx.source_range(),
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local_name,
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)
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.kind(CompletionItemKind::UnresolvedReference)
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.add_import(import_to_add)
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.build();
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return Some(item);
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}
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};
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let mut item =
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CompletionItem::new(completion_kind, self.ctx.source_range(), local_name.clone());
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if let ScopeDef::Local(local) = resolution {
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let ty = local.ty(self.ctx.db());
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if !ty.is_unknown() {
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item = item.detail(ty.display(self.ctx.db()).to_string());
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}
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};
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let mut ref_match = None;
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if let ScopeDef::Local(local) = resolution {
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if let Some((active_name, active_type)) = self.ctx.active_name_and_type() {
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let ty = local.ty(self.ctx.db());
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if let Some(score) =
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compute_score_from_active(&active_type, &active_name, &ty, &local_name)
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{
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item = item.set_score(score);
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}
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ref_match = refed_type_matches(&active_type, &active_name, &ty, &local_name);
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}
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}
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// Add `<>` for generic types
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if self.ctx.completion.is_path_type
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&& !self.ctx.completion.has_type_args
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&& self.ctx.completion.config.add_call_parenthesis
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{
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if let Some(cap) = self.ctx.snippet_cap() {
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let has_non_default_type_params = match resolution {
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ScopeDef::ModuleDef(Adt(it)) => it.has_non_default_type_params(self.ctx.db()),
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ScopeDef::ModuleDef(TypeAlias(it)) => {
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it.has_non_default_type_params(self.ctx.db())
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}
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_ => false,
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};
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if has_non_default_type_params {
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mark::hit!(inserts_angle_brackets_for_generics);
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item = item
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.lookup_by(local_name.clone())
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.label(format!("{}<…>", local_name))
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.insert_snippet(cap, format!("{}<$0>", local_name));
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}
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}
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}
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Some(
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item.kind(kind)
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.add_import(import_to_add)
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.set_ref_match(ref_match)
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.set_documentation(self.docs(resolution))
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.set_deprecated(self.is_deprecated(resolution))
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.build(),
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)
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}
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fn docs(&self, resolution: &ScopeDef) -> Option<Documentation> {
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use hir::ModuleDef::*;
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match resolution {
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ScopeDef::ModuleDef(Module(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(Adt(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(Variant(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(Const(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(Static(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(Trait(it)) => it.docs(self.ctx.db()),
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ScopeDef::ModuleDef(TypeAlias(it)) => it.docs(self.ctx.db()),
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_ => None,
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}
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}
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fn is_deprecated(&self, resolution: &ScopeDef) -> bool {
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match resolution {
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ScopeDef::ModuleDef(it) => self.ctx.is_deprecated_assoc_item(*it),
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ScopeDef::MacroDef(it) => self.ctx.is_deprecated(*it),
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ScopeDef::GenericParam(it) => self.ctx.is_deprecated(*it),
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ScopeDef::AdtSelfType(it) => self.ctx.is_deprecated(*it),
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_ => false,
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}
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}
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}
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fn compute_score_from_active(
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active_type: &Type,
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active_name: &str,
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ty: &Type,
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name: &str,
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) -> Option<CompletionScore> {
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// Compute score
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// For the same type
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if active_type != ty {
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return None;
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}
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let mut res = CompletionScore::TypeMatch;
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// If same type + same name then go top position
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if active_name == name {
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res = CompletionScore::TypeAndNameMatch
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}
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Some(res)
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}
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fn refed_type_matches(
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active_type: &Type,
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active_name: &str,
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ty: &Type,
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name: &str,
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) -> Option<(Mutability, CompletionScore)> {
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let derefed_active = active_type.remove_ref()?;
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let score = compute_score_from_active(&derefed_active, &active_name, &ty, &name)?;
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Some((
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if active_type.is_mutable_reference() { Mutability::Mut } else { Mutability::Shared },
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score,
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))
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}
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fn compute_score(ctx: &RenderContext, ty: &Type, name: &str) -> Option<CompletionScore> {
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let (active_name, active_type) = ctx.active_name_and_type()?;
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compute_score_from_active(&active_type, &active_name, ty, name)
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}
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#[cfg(test)]
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mod tests {
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use std::cmp::Reverse;
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use expect_test::{expect, Expect};
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use test_utils::mark;
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use crate::{
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test_utils::{check_edit, do_completion, get_all_items, TEST_CONFIG},
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CompletionKind, CompletionScore,
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};
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fn check(ra_fixture: &str, expect: Expect) {
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let actual = do_completion(ra_fixture, CompletionKind::Reference);
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expect.assert_debug_eq(&actual);
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}
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fn check_scores(ra_fixture: &str, expect: Expect) {
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fn display_score(score: Option<CompletionScore>) -> &'static str {
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match score {
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Some(CompletionScore::TypeMatch) => "[type]",
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Some(CompletionScore::TypeAndNameMatch) => "[type+name]",
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None => "[]".into(),
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}
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}
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let mut completions = get_all_items(TEST_CONFIG, ra_fixture);
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completions.sort_by_key(|it| (Reverse(it.score()), it.label().to_string()));
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let actual = completions
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.into_iter()
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.filter(|it| it.completion_kind == CompletionKind::Reference)
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.map(|it| {
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let tag = it.kind().unwrap().tag();
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let score = display_score(it.score());
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format!("{} {} {}\n", tag, it.label(), score)
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})
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.collect::<String>();
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expect.assert_eq(&actual);
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}
|
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|
|
#[test]
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fn enum_detail_includes_record_fields() {
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check(
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r#"
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enum Foo { Foo { x: i32, y: i32 } }
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|
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fn main() { Foo::Fo$0 }
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"#,
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expect![[r#"
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[
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CompletionItem {
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label: "Foo",
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source_range: 54..56,
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delete: 54..56,
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insert: "Foo",
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kind: SymbolKind(
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|
Variant,
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),
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detail: "{ x: i32, y: i32 }",
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},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn enum_detail_doesnt_include_tuple_fields() {
|
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check(
|
|
r#"
|
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enum Foo { Foo (i32, i32) }
|
|
|
|
fn main() { Foo::Fo$0 }
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"#,
|
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expect![[r#"
|
|
[
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|
CompletionItem {
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|
label: "Foo(…)",
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|
source_range: 46..48,
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delete: 46..48,
|
|
insert: "Foo($0)",
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|
kind: SymbolKind(
|
|
Variant,
|
|
),
|
|
lookup: "Foo",
|
|
detail: "(i32, i32)",
|
|
trigger_call_info: true,
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn enum_detail_just_parentheses_for_unit() {
|
|
check(
|
|
r#"
|
|
enum Foo { Foo }
|
|
|
|
fn main() { Foo::Fo$0 }
|
|
"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "Foo",
|
|
source_range: 35..37,
|
|
delete: 35..37,
|
|
insert: "Foo",
|
|
kind: SymbolKind(
|
|
Variant,
|
|
),
|
|
detail: "()",
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn lookup_enums_by_two_qualifiers() {
|
|
check(
|
|
r#"
|
|
mod m {
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|
pub enum Spam { Foo, Bar(i32) }
|
|
}
|
|
fn main() { let _: m::Spam = S$0 }
|
|
"#,
|
|
expect![[r#"
|
|
[
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|
CompletionItem {
|
|
label: "Spam::Bar(…)",
|
|
source_range: 75..76,
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|
delete: 75..76,
|
|
insert: "Spam::Bar($0)",
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|
kind: SymbolKind(
|
|
Variant,
|
|
),
|
|
lookup: "Spam::Bar",
|
|
detail: "(i32)",
|
|
trigger_call_info: true,
|
|
},
|
|
CompletionItem {
|
|
label: "m",
|
|
source_range: 75..76,
|
|
delete: 75..76,
|
|
insert: "m",
|
|
kind: SymbolKind(
|
|
Module,
|
|
),
|
|
},
|
|
CompletionItem {
|
|
label: "m::Spam::Foo",
|
|
source_range: 75..76,
|
|
delete: 75..76,
|
|
insert: "m::Spam::Foo",
|
|
kind: SymbolKind(
|
|
Variant,
|
|
),
|
|
lookup: "Spam::Foo",
|
|
detail: "()",
|
|
},
|
|
CompletionItem {
|
|
label: "main()",
|
|
source_range: 75..76,
|
|
delete: 75..76,
|
|
insert: "main()$0",
|
|
kind: SymbolKind(
|
|
Function,
|
|
),
|
|
lookup: "main",
|
|
detail: "-> ()",
|
|
},
|
|
]
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn sets_deprecated_flag_in_items() {
|
|
check(
|
|
r#"
|
|
#[deprecated]
|
|
fn something_deprecated() {}
|
|
#[rustc_deprecated(since = "1.0.0")]
|
|
fn something_else_deprecated() {}
|
|
|
|
fn main() { som$0 }
|
|
"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "main()",
|
|
source_range: 127..130,
|
|
delete: 127..130,
|
|
insert: "main()$0",
|
|
kind: SymbolKind(
|
|
Function,
|
|
),
|
|
lookup: "main",
|
|
detail: "-> ()",
|
|
},
|
|
CompletionItem {
|
|
label: "something_deprecated()",
|
|
source_range: 127..130,
|
|
delete: 127..130,
|
|
insert: "something_deprecated()$0",
|
|
kind: SymbolKind(
|
|
Function,
|
|
),
|
|
lookup: "something_deprecated",
|
|
detail: "-> ()",
|
|
deprecated: true,
|
|
},
|
|
CompletionItem {
|
|
label: "something_else_deprecated()",
|
|
source_range: 127..130,
|
|
delete: 127..130,
|
|
insert: "something_else_deprecated()$0",
|
|
kind: SymbolKind(
|
|
Function,
|
|
),
|
|
lookup: "something_else_deprecated",
|
|
detail: "-> ()",
|
|
deprecated: true,
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
|
|
check(
|
|
r#"
|
|
struct A { #[deprecated] the_field: u32 }
|
|
fn foo() { A { the$0 } }
|
|
"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "the_field",
|
|
source_range: 57..60,
|
|
delete: 57..60,
|
|
insert: "the_field",
|
|
kind: SymbolKind(
|
|
Field,
|
|
),
|
|
detail: "u32",
|
|
deprecated: true,
|
|
},
|
|
]
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn renders_docs() {
|
|
check(
|
|
r#"
|
|
struct S {
|
|
/// Field docs
|
|
foo:
|
|
}
|
|
impl S {
|
|
/// Method docs
|
|
fn bar(self) { self.$0 }
|
|
}"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "bar()",
|
|
source_range: 94..94,
|
|
delete: 94..94,
|
|
insert: "bar()$0",
|
|
kind: Method,
|
|
lookup: "bar",
|
|
detail: "-> ()",
|
|
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(
|
|
r#"
|
|
use self::my$0;
|
|
|
|
/// mod docs
|
|
mod my { }
|
|
|
|
/// enum docs
|
|
enum E {
|
|
/// variant docs
|
|
V
|
|
}
|
|
use self::E::*;
|
|
"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "E",
|
|
source_range: 10..12,
|
|
delete: 10..12,
|
|
insert: "E",
|
|
kind: SymbolKind(
|
|
Enum,
|
|
),
|
|
documentation: Documentation(
|
|
"enum docs",
|
|
),
|
|
},
|
|
CompletionItem {
|
|
label: "V",
|
|
source_range: 10..12,
|
|
delete: 10..12,
|
|
insert: "V",
|
|
kind: SymbolKind(
|
|
Variant,
|
|
),
|
|
detail: "()",
|
|
documentation: Documentation(
|
|
"variant docs",
|
|
),
|
|
},
|
|
CompletionItem {
|
|
label: "my",
|
|
source_range: 10..12,
|
|
delete: 10..12,
|
|
insert: "my",
|
|
kind: SymbolKind(
|
|
Module,
|
|
),
|
|
documentation: Documentation(
|
|
"mod docs",
|
|
),
|
|
},
|
|
]
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn dont_render_attrs() {
|
|
check(
|
|
r#"
|
|
struct S;
|
|
impl S {
|
|
#[inline]
|
|
fn the_method(&self) { }
|
|
}
|
|
fn foo(s: S) { s.$0 }
|
|
"#,
|
|
expect![[r#"
|
|
[
|
|
CompletionItem {
|
|
label: "the_method()",
|
|
source_range: 81..81,
|
|
delete: 81..81,
|
|
insert: "the_method()$0",
|
|
kind: Method,
|
|
lookup: "the_method",
|
|
detail: "-> ()",
|
|
},
|
|
]
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn no_call_parens_if_fn_ptr_needed() {
|
|
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 }
|
|
}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn no_parens_in_use_item() {
|
|
mark::check!(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() {
|
|
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_score() {
|
|
mark::check!(active_param_type_match);
|
|
check_scores(
|
|
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_scores() {
|
|
mark::check!(record_field_type_match);
|
|
check_scores(
|
|
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_scores() {
|
|
check_scores(
|
|
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_scores(
|
|
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_scores(
|
|
r#"
|
|
struct WorldSnapshot { _f: () };
|
|
fn go(world: &WorldSnapshot) { go(w$0) }
|
|
"#,
|
|
expect![[r#"
|
|
lc world [type+name]
|
|
st WorldSnapshot []
|
|
fn go(…) []
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn too_many_arguments() {
|
|
check_scores(
|
|
r#"
|
|
struct Foo;
|
|
fn f(foo: &Foo) { f(foo, w$0) }
|
|
"#,
|
|
expect![[r#"
|
|
st Foo []
|
|
fn f(…) []
|
|
lc foo []
|
|
"#]],
|
|
);
|
|
}
|
|
}
|