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https://github.com/rust-lang/rust-analyzer.git
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1834bae5b8
This wasn't a right decision in the first place, the feature flag was broken in the last rustfmt release, and syntax highlighting of imports is more important anyway
89 lines
2.5 KiB
Rust
89 lines
2.5 KiB
Rust
use crate::completion::{CompletionContext, Completions};
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/// Completes constats and paths in patterns.
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pub(super) fn complete_pattern(acc: &mut Completions, ctx: &CompletionContext) {
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if !ctx.is_pat_binding {
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return;
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}
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// FIXME: ideally, we should look at the type we are matching against and
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// suggest variants + auto-imports
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let names = ctx.analyzer.all_names(ctx.db);
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for (name, res) in names.into_iter() {
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let r = res.as_ref();
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let def = match r.take_types().or_else(|| r.take_values()) {
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Some(hir::Resolution::Def(def)) => def,
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_ => continue,
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};
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match def {
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hir::ModuleDef::Enum(..)
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| hir::ModuleDef::EnumVariant(..)
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| hir::ModuleDef::Const(..)
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| hir::ModuleDef::Module(..) => (),
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_ => continue,
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}
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acc.add_resolution(ctx, name.to_string(), &res)
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}
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}
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#[cfg(test)]
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mod tests {
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use crate::completion::{do_completion, CompletionItem, CompletionKind};
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use insta::assert_debug_snapshot_matches;
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fn complete(code: &str) -> Vec<CompletionItem> {
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do_completion(code, CompletionKind::Reference)
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}
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#[test]
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fn completes_enum_variants_and_modules() {
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let completions = complete(
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r"
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enum E { X }
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use self::E::X;
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const Z: E = E::X;
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mod m {}
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static FOO: E = E::X;
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struct Bar { f: u32 }
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fn foo() {
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match E::X {
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<|>
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}
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}
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",
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);
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assert_debug_snapshot_matches!(completions, @r###"
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⋮[
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⋮ CompletionItem {
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⋮ label: "E",
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⋮ source_range: [246; 246),
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⋮ delete: [246; 246),
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⋮ insert: "E",
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⋮ kind: Enum,
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⋮ },
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⋮ CompletionItem {
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⋮ label: "X",
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⋮ source_range: [246; 246),
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⋮ delete: [246; 246),
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⋮ insert: "X",
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⋮ kind: EnumVariant,
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⋮ },
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⋮ CompletionItem {
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⋮ label: "Z",
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⋮ source_range: [246; 246),
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⋮ delete: [246; 246),
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⋮ insert: "Z",
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⋮ kind: Const,
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⋮ },
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⋮ CompletionItem {
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⋮ label: "m",
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⋮ source_range: [246; 246),
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⋮ delete: [246; 246),
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⋮ insert: "m",
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⋮ kind: Module,
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⋮ },
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⋮]
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"###);
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}
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}
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