From f34492d7e515d6af6fecdc588241977f54471572 Mon Sep 17 00:00:00 2001
From: Christopher Chedeau <vjeuxx@gmail.com>
Date: Mon, 29 May 2017 12:49:25 -0700
Subject: [PATCH] Strip leading space for first combinators (#1807)

---
 src/printer.js                                |  4 +++-
 .../__snapshots__/jsfmt.spec.js.snap          | 21 +++++++++++++++++++
 tests/css_combinator/leading.css              |  8 +++++++
 .../nested-2/__snapshots__/jsfmt.spec.js.snap |  6 +++---
 .../nested/__snapshots__/jsfmt.spec.js.snap   |  4 ++--
 5 files changed, 37 insertions(+), 6 deletions(-)
 create mode 100644 tests/css_combinator/leading.css

diff --git a/src/printer.js b/src/printer.js
index 5da9b179..f68160b0 100644
--- a/src/printer.js
+++ b/src/printer.js
@@ -2690,7 +2690,9 @@ function genericPrintNoParens(path, options, print, args) {
     }
     case "selector-combinator": {
       if (n.value === "+" || n.value === ">" || n.value === "~") {
-        return concat([" ", n.value, " "]);
+        const parent = path.getParentNode();
+        const leading = parent.type === "selector-selector" && parent.nodes[0] === n ? "" : " ";
+        return concat([leading, n.value, " "]);
       }
       return n.value;
     }
diff --git a/tests/css_combinator/__snapshots__/jsfmt.spec.js.snap b/tests/css_combinator/__snapshots__/jsfmt.spec.js.snap
index 4f4c6a4f..d42b86db 100644
--- a/tests/css_combinator/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/css_combinator/__snapshots__/jsfmt.spec.js.snap
@@ -8,3 +8,24 @@ exports[`combinator.css 1`] = `
 }
 
 `;
+
+exports[`leading.css 1`] = `
+a {
+  > * {
+  }
+  &, > * {
+  }
+  + * {
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+a {
+  > * {
+  }
+  &, > * {
+  }
+  + * {
+  }
+}
+
+`;
diff --git a/tests/css_combinator/leading.css b/tests/css_combinator/leading.css
new file mode 100644
index 00000000..7030864e
--- /dev/null
+++ b/tests/css_combinator/leading.css
@@ -0,0 +1,8 @@
+a {
+  > * {
+  }
+  &, > * {
+  }
+  + * {
+  }
+}
diff --git a/tests/stylefmt/nested-2/__snapshots__/jsfmt.spec.js.snap b/tests/stylefmt/nested-2/__snapshots__/jsfmt.spec.js.snap
index 6593a22f..34d8b974 100644
--- a/tests/stylefmt/nested-2/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/stylefmt/nested-2/__snapshots__/jsfmt.spec.js.snap
@@ -29,13 +29,13 @@ color:blue;}  &:nth-child(5n+1) {
   &:nth-child(-n + 3) {
     color: green;
   }
-   > li > a {
+  > li > a {
     color: red;
   }
-   > li > li {
+  > li > li {
     color: blue;
   }
-   > p + p {
+  > p + p {
     color: green;
   }
 }
diff --git a/tests/stylefmt/nested/__snapshots__/jsfmt.spec.js.snap b/tests/stylefmt/nested/__snapshots__/jsfmt.spec.js.snap
index e7e20437..baae75f9 100644
--- a/tests/stylefmt/nested/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/stylefmt/nested/__snapshots__/jsfmt.spec.js.snap
@@ -20,12 +20,12 @@ padding: 10px;   .nested-2-1{
 .foo {
   font-size: 12px;
 
-   > .nested-1 {
+  > .nested-1 {
     padding: 10px;
     .nested-2-1 {
       color: red;
     }
-     + .nested-2-2 {
+    + .nested-2-2 {
       color: blue;
     }
   }