Merge pull request #19279 from Natural-selection1/master

Improve keyword completion for 'let' and 'let mut'

crates/ide-completion/src/completions/expr.rs

@@ -365,7 +365,8 @@ pub(crate) fn complete_expr_path(
                     add_keyword("false", "false");
 
                     if in_condition || in_block_expr {
-                        add_keyword("let", "let");
+                        add_keyword("letm", "let mut $0");
+                        add_keyword("let", "let $0");
                     }
 
                     if after_if_expr {

crates/ide-completion/src/completions/keyword.rs

@@ -330,4 +330,34 @@ fn main() {
 ",
         )
     }
+
+    #[test]
+    fn completes_let_with_space() {
+        check_edit(
+            "let",
+            r#"
+fn main() {
+    $0
+}
+"#,
+            r#"
+fn main() {
+    let $0
+}
+"#,
+        );
+        check_edit(
+            "letm",
+            r#"
+fn main() {
+    $0
+}
+"#,
+            r#"
+fn main() {
+    let mut $0
+}
+"#,
+        );
+    }
 }

crates/ide-completion/src/tests/expression.rs

@@ -170,6 +170,7 @@ impl Unit {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -247,6 +248,7 @@ fn complete_in_block() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -297,6 +299,7 @@ fn complete_after_if_expr() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -370,6 +373,7 @@ fn completes_in_loop_ctx() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -942,6 +946,7 @@ fn foo() { if foo {} $0 }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -983,6 +988,7 @@ fn foo() { if foo {} el$0 }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1072,6 +1078,7 @@ fn foo() { if foo {} $0 let x = 92; }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1113,6 +1120,7 @@ fn foo() { if foo {} el$0 let x = 92; }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1154,6 +1162,7 @@ fn foo() { if foo {} el$0 { let x = 92; } }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1205,6 +1214,7 @@ pub struct UnstableThisShouldNotBeListed;
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1258,6 +1268,7 @@ pub struct UnstableButWeAreOnNightlyAnyway;
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1495,6 +1506,7 @@ fn main() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1945,6 +1957,7 @@ fn bar() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -2016,6 +2029,7 @@ fn foo() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod

crates/ide-completion/src/tests/item.rs

@@ -285,6 +285,7 @@ fn bar() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod

crates/ide-completion/src/tests/special.rs

@@ -1009,6 +1009,7 @@ fn here_we_go() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1059,6 +1060,7 @@ fn here_we_go() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1182,6 +1184,7 @@ fn bar() { qu$0 }
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod
@@ -1437,6 +1440,7 @@ fn foo() {
             kw if let
             kw impl
             kw let
+            kw letm
             kw loop
             kw match
             kw mod