From fae89605547d684d39e0065fc4286f8608428d5f Mon Sep 17 00:00:00 2001
From: Alan Du <alanhdu@gmail.com>
Date: Fri, 4 Jan 2019 13:36:31 -0500
Subject: Remove extra space when joining lines in use items

---
 crates/ra_editor/src/typing.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/crates/ra_editor/src/typing.rs b/crates/ra_editor/src/typing.rs
index dd3d0f260..5876f9e20 100644
--- a/crates/ra_editor/src/typing.rs
+++ b/crates/ra_editor/src/typing.rs
@@ -256,6 +256,11 @@ fn join_single_use_tree(edit: &mut TextEditBuilder, node: SyntaxNodeRef) -> Opti
 fn compute_ws(left: SyntaxNodeRef, right: SyntaxNodeRef) -> &'static str {
     match left.kind() {
         L_PAREN | L_BRACK => return "",
+        L_CURLY => {
+            if let USE_TREE = right.kind() {
+                return "";
+            }
+        }
         _ => (),
     }
     match right.kind() {
@@ -330,6 +335,20 @@ fn foo() {
         );
     }
 
+    #[test]
+    fn test_join_lines_use_items() {
+        // No space after the '{'
+        check_join_lines(
+            r"
+<|>use ra_syntax::{
+    TextUnit, TextRange,
+};",
+            r"
+<|>use ra_syntax::{TextUnit, TextRange,
+};",
+        );
+    }
+
     #[test]
     fn test_join_lines_use_tree() {
         check_join_lines(
-- 
cgit v1.2.3


From 182ec76f135d0b213d6abea486521e81796bca46 Mon Sep 17 00:00:00 2001
From: Alan Du <alanhdu@gmail.com>
Date: Fri, 4 Jan 2019 22:01:11 -0500
Subject: Address join lines use items right }

---
 crates/ra_editor/src/typing.rs | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/crates/ra_editor/src/typing.rs b/crates/ra_editor/src/typing.rs
index 5876f9e20..2befd5266 100644
--- a/crates/ra_editor/src/typing.rs
+++ b/crates/ra_editor/src/typing.rs
@@ -188,10 +188,14 @@ fn remove_newline(
         edit.delete(TextRange::from_to(prev.range().start(), node.range().end()));
     } else if prev.kind() == COMMA && next.kind() == R_CURLY {
         // Removes: comma, newline (incl. surrounding whitespace)
-        // Adds: a single whitespace
+        let space = if let Some(USE_TREE) = prev.prev_sibling().map(|p| p.kind()) {
+            ""
+        } else {
+            " "
+        };
         edit.replace(
             TextRange::from_to(prev.range().start(), node.range().end()),
-            " ".to_string(),
+            space.to_string(),
         );
     } else if let (Some(_), Some(next)) = (ast::Comment::cast(prev), ast::Comment::cast(next)) {
         // Removes: newline (incl. surrounding whitespace), start of the next comment
@@ -336,7 +340,7 @@ fn foo() {
     }
 
     #[test]
-    fn test_join_lines_use_items() {
+    fn test_join_lines_use_items_left() {
         // No space after the '{'
         check_join_lines(
             r"
@@ -349,6 +353,20 @@ fn foo() {
         );
     }
 
+    #[test]
+    fn test_join_lines_use_items_right() {
+        // No space after the '{'
+        check_join_lines(
+            r"
+use ra_syntax::{
+<|>    TextUnit, TextRange,
+};",
+            r"
+use ra_syntax::{
+<|>    TextUnit, TextRange};",
+        );
+    }
+
     #[test]
     fn test_join_lines_use_tree() {
         check_join_lines(
-- 
cgit v1.2.3


From 19c641390d2d152cddf9616aef51fa291260d289 Mon Sep 17 00:00:00 2001
From: Alan Du <alanhdu@gmail.com>
Date: Fri, 4 Jan 2019 22:06:36 -0500
Subject: Fix join_lines use_items right w/ and w/o comma

---
 crates/ra_editor/src/typing.rs | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/crates/ra_editor/src/typing.rs b/crates/ra_editor/src/typing.rs
index 2befd5266..1b568e96c 100644
--- a/crates/ra_editor/src/typing.rs
+++ b/crates/ra_editor/src/typing.rs
@@ -188,8 +188,8 @@ fn remove_newline(
         edit.delete(TextRange::from_to(prev.range().start(), node.range().end()));
     } else if prev.kind() == COMMA && next.kind() == R_CURLY {
         // Removes: comma, newline (incl. surrounding whitespace)
-        let space = if let Some(USE_TREE) = prev.prev_sibling().map(|p| p.kind()) {
-            ""
+        let space = if let Some(left) = prev.prev_sibling() {
+            compute_ws(left, next)
         } else {
             " "
         };
@@ -269,6 +269,11 @@ fn compute_ws(left: SyntaxNodeRef, right: SyntaxNodeRef) -> &'static str {
     }
     match right.kind() {
         R_PAREN | R_BRACK => return "",
+        R_CURLY => {
+            if let USE_TREE = left.kind() {
+                return "";
+            }
+        }
         DOT => return "",
         _ => (),
     }
@@ -355,7 +360,21 @@ fn foo() {
 
     #[test]
     fn test_join_lines_use_items_right() {
-        // No space after the '{'
+        // No space after the '}'
+        check_join_lines(
+            r"
+use ra_syntax::{
+<|>    TextUnit, TextRange
+};",
+            r"
+use ra_syntax::{
+<|>    TextUnit, TextRange};",
+        );
+    }
+
+    #[test]
+    fn test_join_lines_use_items_right_comma() {
+        // No space after the '}'
         check_join_lines(
             r"
 use ra_syntax::{
-- 
cgit v1.2.3