Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide_completion/src/context.rs')
| -rw-r--r-- | crates/ide_completion/src/context.rs | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/crates/ide_completion/src/context.rs b/crates/ide_completion/src/context.rs index 26f6c17805..965f9b356a 100644 --- a/crates/ide_completion/src/context.rs +++ b/crates/ide_completion/src/context.rs @@ -3,13 +3,14 @@ use std::iter; use base_db::SourceDatabaseExt; -use hir::{Local, Name, ScopeDef, Semantics, SemanticsScope, Type, TypeInfo}; +use hir::{known, Local, Name, ScopeDef, Semantics, SemanticsScope, Type, TypeInfo}; use ide_db::{ active_parameter::ActiveParameter, base_db::{FilePosition, SourceDatabase}, helpers::FamousDefs, RootDatabase, }; +use rustc_hash::FxHashSet; use syntax::{ algo::find_node_at_offset, ast::{self, HasName, NameOrNameRef}, @@ -85,6 +86,7 @@ pub(crate) enum ParamKind { Function, Closure, } + /// `CompletionContext` is created early during completion to figure out, where /// exactly is the cursor, syntax-wise. #[derive(Debug)] @@ -120,7 +122,10 @@ pub(crate) struct CompletionContext<'a> { pub(super) lifetime_ctx: Option<LifetimeContext>, pub(super) pattern_ctx: Option<PatternContext>, pub(super) path_context: Option<PathCompletionContext>, + pub(super) locals: Vec<(Name, Local)>, + /// Operator traits defined in the project + pub(super) ops_traits: FxHashSet<hir::Trait>, no_completion_required: bool, } @@ -308,6 +313,11 @@ impl<'a> CompletionContext<'a> { self.token.kind() == BANG && self.token.parent().map_or(false, |it| it.kind() == MACRO_CALL) } + /// Whether the given trait is an operator trait or not. + pub(crate) fn is_ops_trait(&self, trait_: hir::Trait) -> bool { + self.ops_traits.contains(&trait_) + } + /// A version of [`SemanticsScope::process_all_names`] that filters out `#[doc(hidden)]` items. pub(crate) fn process_all_names(&self, f: &mut dyn FnMut(Name, ScopeDef)) { let _p = profile::span("CompletionContext::process_all_names"); @@ -388,6 +398,17 @@ impl<'a> CompletionContext<'a> { locals.push((name, local)); } }); + let mut ops_traits = + FxHashSet::with_capacity_and_hasher(OP_TRAIT_LANG_NAMES.len(), Default::default()); + if let Some(krate) = krate { + let _p = profile::span("CompletionContext::new ops"); + for trait_ in + OP_TRAIT_LANG_NAMES.iter().filter_map(|item| hir::Trait::lang(db, krate, item)) + { + ops_traits.insert(trait_); + } + } + let mut ctx = CompletionContext { sema, scope, @@ -413,6 +434,7 @@ impl<'a> CompletionContext<'a> { locals, incomplete_let: false, no_completion_required: false, + ops_traits, }; ctx.expand_and_fill( original_file.syntax().clone(), @@ -889,6 +911,7 @@ fn pattern_context_for(pat: ast::Pat) -> PatternContext { }); PatternContext { refutability, is_param, has_type_ascription } } + fn find_node_with_range<N: AstNode>(syntax: &SyntaxNode, range: TextRange) -> Option<N> { syntax.covering_element(range).ancestors().find_map(N::cast) } @@ -915,6 +938,37 @@ fn has_ref(token: &SyntaxToken) -> bool { token.kind() == T![&] } +const OP_TRAIT_LANG_NAMES: &[hir::Name] = &[ + known::add_assign, + known::add, + known::bitand_assign, + known::bitand, + known::bitor_assign, + known::bitor, + known::bitxor_assign, + known::bitxor, + known::deref_mut, + known::deref, + known::div_assign, + known::div, + known::fn_mut, + known::fn_once, + known::r#fn, + known::index_mut, + known::index, + known::mul_assign, + known::mul, + known::neg, + known::not, + known::rem_assign, + known::rem, + known::shl_assign, + known::shl, + known::shr_assign, + known::shr, + known::sub, + known::sub, +]; #[cfg(test)] mod tests { use expect_test::{expect, Expect}; |