Add postfix completion for let else

Author: Alainx277

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

@@ -75,6 +75,11 @@ pub(crate) fn complete_postfix(
 
     let try_enum = TryEnum::from_ty(&ctx.sema, &receiver_ty.strip_references());
     if let Some(try_enum) = &try_enum {
+        let in_loop = dot_receiver
+            .syntax()
+            .ancestors()
+            .any(|n| matches!(n.kind(), WHILE_EXPR | LOOP_EXPR | FOR_EXPR));
+
         match try_enum {
             TryEnum::Result => {
                 postfix_snippet(
@@ -84,6 +89,17 @@ pub(crate) fn complete_postfix(
                 )
                 .add_to(acc, ctx.db);
 
+                postfix_snippet(
+                    "lete",
+                    "let Ok else {}",
+                    &if in_loop {
+                        format!("let Ok($1) = {receiver_text} else {{\n    ${{2|continue,break,return|}};\n}};\n$0")
+                    } else {
+                        format!("let Ok($1) = {receiver_text} else {{\n    return;\n}};\n$0")
+                    },
+                )
+                .add_to(acc, ctx.db);
+
                 postfix_snippet(
                     "while",
                     "while let Ok {}",
@@ -99,6 +115,17 @@ pub(crate) fn complete_postfix(
                 )
                 .add_to(acc, ctx.db);
 
+                postfix_snippet(
+                    "lete",
+                    "let Some else {}",
+                    &if in_loop {
+                        format!("let Some($1) = {receiver_text} else {{\n    ${{2|continue,break,return|}};\n}};\n$0")
+                    } else {
+                        format!("let Some($1) = {receiver_text} else {{\n    return;\n}};\n$0")
+                    },
+                )
+                .add_to(acc, ctx.db);
+
                 postfix_snippet(
                     "while",
                     "while let Some {}",
@@ -469,6 +496,56 @@ fn main() {
         );
     }
 
+    #[test]
+    fn option_letelse() {
+        check_edit(
+            "lete",
+            r#"
+//- minicore: option
+fn main() {
+    let bar = Some(true);
+    bar.$0
+}
+"#,
+            r#"
+fn main() {
+    let bar = Some(true);
+    let Some($1) = bar else {
+    return;
+};
+$0
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn option_letelse_loop() {
+        check_edit(
+            "lete",
+            r#"
+//- minicore: option
+fn main() {
+    let bar = Some(true);
+    loop {
+        bar.$0
+    }
+}
+"#,
+            r#"
+fn main() {
+    let bar = Some(true);
+    loop {
+        let Some($1) = bar else {
+    ${2|continue,break,return|};
+};
+$0
+    }
+}
+"#,
+        );
+    }
+
     #[test]
     fn result_match() {
         check_edit(