Merge #9068

9068: Move more `CompletinoContext` fields to `ImmediateLocation` r=Veykril a=Veykril

bors r+

Co-authored-by: Lukas Wirth <[email protected]>

4 files changed, 41 insertions, 18 deletions

diff --git a/crates/ide_completion/src/completions/fn_param.rs b/crates/ide_completion/src/completions/fn_param.rs
index 0ea558489..cb90e8a3e 100644
--- a/crates/ide_completion/src/completions/fn_param.rs
+++ b/crates/ide_completion/src/completions/fn_param.rs
@@ -128,4 +128,19 @@ fn outer(text: String) {
             "#]],
         )
     }
+
+    #[test]
+    fn completes_non_ident_pat_param() {
+        check(
+            r#"
+struct Bar { bar: u32 }
+
+fn foo(Bar { bar }: Bar) {}
+fn foo2($0) {}
+"#,
+            expect![[r#"
+                bn Bar { bar }: Bar
+            "#]],
+        )
+    }
 }
diff --git a/crates/ide_completion/src/completions/keyword.rs b/crates/ide_completion/src/completions/keyword.rs
index e71a04b6e..0d035c611 100644
--- a/crates/ide_completion/src/completions/keyword.rs
+++ b/crates/ide_completion/src/completions/keyword.rs
@@ -4,7 +4,10 @@ use std::iter;
 
 use syntax::{SyntaxKind, T};
 
-use crate::{CompletionContext, CompletionItem, CompletionItemKind, CompletionKind, Completions};
+use crate::{
+    patterns::ImmediateLocation, CompletionContext, CompletionItem, CompletionItemKind,
+    CompletionKind, Completions,
+};
 
 pub(crate) fn complete_use_tree_keyword(acc: &mut Completions, ctx: &CompletionContext) {
     // complete keyword "crate" in use stmt
@@ -44,7 +47,7 @@ pub(crate) fn complete_expr_keyword(acc: &mut Completions, ctx: &CompletionConte
         cov_mark::hit!(no_keyword_completion_in_comments);
         return;
     }
-    if ctx.record_lit_syntax.is_some() {
+    if matches!(ctx.completion_location, Some(ImmediateLocation::RecordExpr(_))) {
         cov_mark::hit!(no_keyword_completion_in_record_lit);
         return;
     }
@@ -55,7 +58,6 @@ pub(crate) fn complete_expr_keyword(acc: &mut Completions, ctx: &CompletionConte
     let expects_item = ctx.expects_item();
 
     if ctx.has_impl_or_trait_prev_sibling() {
-        // FIXME this also incorrectly shows up after a complete trait/impl
         add_keyword("where", "where ");
         return;
     }
@@ -77,11 +79,8 @@ pub(crate) fn complete_expr_keyword(acc: &mut Completions, ctx: &CompletionConte
         add_keyword("pub", "pub ");
     }
 
-    if expects_item || expects_assoc_item || has_block_expr_parent || ctx.is_match_arm {
-        add_keyword("unsafe", "unsafe ");
-    }
-
     if expects_item || expects_assoc_item || has_block_expr_parent {
+        add_keyword("unsafe", "unsafe ");
         add_keyword("fn", "fn $1($2) {\n    $0\n}");
         add_keyword("const", "const $0");
         add_keyword("type", "type $0");
@@ -103,6 +102,9 @@ pub(crate) fn complete_expr_keyword(acc: &mut Completions, ctx: &CompletionConte
     }
 
     if ctx.expects_expression() {
+        if !has_block_expr_parent {
+            add_keyword("unsafe", "unsafe {\n    $0\n}");
+        }
         add_keyword("match", "match $1 {\n    $0\n}");
         add_keyword("while", "while $1 {\n    $0\n}");
         add_keyword("while let", "while let $1 = $2 {\n    $0\n}");
@@ -574,6 +576,7 @@ pub mod future {
         check(
             r#"fn main() { let _ = $0 }"#,
             expect![[r#"
+                kw unsafe
                 kw match
                 kw while
                 kw while let
@@ -634,6 +637,7 @@ fn foo() {
 }
 "#,
             expect![[r#"
+                kw unsafe
                 kw match
                 kw while
                 kw while let
diff --git a/crates/ide_completion/src/completions/mod_.rs b/crates/ide_completion/src/completions/mod_.rs
index 4f9415736..6a5746fb9 100644
--- a/crates/ide_completion/src/completions/mod_.rs
+++ b/crates/ide_completion/src/completions/mod_.rs
@@ -9,14 +9,14 @@ use ide_db::{
 };
 use rustc_hash::FxHashSet;
 
-use crate::CompletionItem;
+use crate::{patterns::ImmediateLocation, CompletionItem};
 
 use crate::{context::CompletionContext, item::CompletionKind, Completions};
 
 /// Complete mod declaration, i.e. `mod $0 ;`
 pub(crate) fn complete_mod(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
-    let mod_under_caret = match &ctx.mod_declaration_under_caret {
-        Some(mod_under_caret) if mod_under_caret.item_list().is_none() => mod_under_caret,
+    let mod_under_caret = match &ctx.completion_location {
+        Some(ImmediateLocation::ModDeclaration(mod_under_caret)) => mod_under_caret,
         _ => return None,
     };
 
diff --git a/crates/ide_completion/src/completions/record.rs b/crates/ide_completion/src/completions/record.rs
index e1526b70b..227c08d01 100644
--- a/crates/ide_completion/src/completions/record.rs
+++ b/crates/ide_completion/src/completions/record.rs
@@ -2,21 +2,21 @@
 use ide_db::{helpers::FamousDefs, SymbolKind};
 use syntax::ast::Expr;
 
-use crate::{item::CompletionKind, CompletionContext, CompletionItem, Completions};
+use crate::{
+    item::CompletionKind, patterns::ImmediateLocation, CompletionContext, CompletionItem,
+    Completions,
+};
 
 pub(crate) fn complete_record(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
-    let missing_fields = match (ctx.record_pat_syntax.as_ref(), ctx.record_lit_syntax.as_ref()) {
-        (None, None) => return None,
-        (Some(_), Some(_)) => unreachable!("A record cannot be both a literal and a pattern"),
-        (Some(record_pat), _) => ctx.sema.record_pattern_missing_fields(record_pat),
-        (_, Some(record_lit)) => {
-            let ty = ctx.sema.type_of_expr(&Expr::RecordExpr(record_lit.clone()));
+    let missing_fields = match &ctx.completion_location {
+        Some(ImmediateLocation::RecordExpr(record_expr)) => {
+            let ty = ctx.sema.type_of_expr(&Expr::RecordExpr(record_expr.clone()));
             let default_trait = FamousDefs(&ctx.sema, ctx.krate).core_default_Default();
             let impl_default_trait = default_trait
                 .zip(ty)
                 .map_or(false, |(default_trait, ty)| ty.impls_trait(ctx.db, default_trait, &[]));
 
-            let missing_fields = ctx.sema.record_literal_missing_fields(record_lit);
+            let missing_fields = ctx.sema.record_literal_missing_fields(record_expr);
             if impl_default_trait && !missing_fields.is_empty() {
                 let completion_text = "..Default::default()";
                 let mut item = CompletionItem::new(
@@ -32,6 +32,10 @@ pub(crate) fn complete_record(acc: &mut Completions, ctx: &CompletionContext) ->
 
             missing_fields
         }
+        Some(ImmediateLocation::RecordPat(record_pat)) => {
+            ctx.sema.record_pattern_missing_fields(record_pat)
+        }
+        _ => return None,
     };
 
     for (field, ty) in missing_fields {