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|
use crate::completion::{CompletionContext, Completions};
/// Completes constats and paths in patterns.
pub(super) fn complete_pattern(acc: &mut Completions, ctx: &CompletionContext) {
if !ctx.is_pat_binding {
return;
}
// TODO: ideally, we should look at the type we are matching against and
// suggest variants + auto-imports
let names = ctx.resolver.all_names(ctx.db);
for (name, res) in names.into_iter() {
let r = res.as_ref();
let def = match r.take_types().or(r.take_values()) {
Some(hir::Resolution::Def(def)) => def,
_ => continue,
};
match def {
hir::ModuleDef::Enum(..)
| hir::ModuleDef::EnumVariant(..)
| hir::ModuleDef::Const(..)
| hir::ModuleDef::Module(..) => (),
_ => continue,
}
acc.add_resolution(ctx, name.to_string(), &res)
}
}
#[cfg(test)]
mod tests {
use insta::assert_debug_snapshot_matches;
use crate::completion::{CompletionItem, CompletionKind, do_completion};
fn complete(code: &str) -> Vec<CompletionItem> {
do_completion(code, CompletionKind::Reference)
}
#[test]
fn completes_enum_variants_and_modules() {
let completions = complete(
r"
enum E { X }
use self::E::X;
const Z: E = E::X;
mod m {}
static FOO: E = E::X;
struct Bar { f: u32 }
fn foo() {
match E::X {
<|>
}
}
",
);
assert_debug_snapshot_matches!(completions, @r###"[
CompletionItem {
label: "E",
source_range: [246; 246),
delete: [246; 246),
insert: "E",
kind: Enum
},
CompletionItem {
label: "X",
source_range: [246; 246),
delete: [246; 246),
insert: "X",
kind: EnumVariant
},
CompletionItem {
label: "Z",
source_range: [246; 246),
delete: [246; 246),
insert: "Z",
kind: Const
},
CompletionItem {
label: "m",
source_range: [246; 246),
delete: [246; 246),
insert: "m",
kind: Module
}
]"###);
}
}
|
