Add support for @host

Author: Nicolas Gallagher

History.md

@@ -9,20 +9,20 @@
 
  * add source map generation
 
-1.3.2 / 2013-10-18 
+1.3.2 / 2013-10-18
 ==================
 
  * fix whitespace and indentation in the Compressed compiler.
  * add @namespace support
  * add .stylesheet(node)
 
-1.3.1 / 2013-06-02 
+1.3.1 / 2013-06-02
 ==================
 
  * fix output of rules with no declarations for Identity compiler
  * fix defaulting of options
 
-1.3.0 / 2013-05-28 
+1.3.0 / 2013-05-28
 ==================
 
  * add ignoring of empty rulesets. Closes #7
@@ -33,38 +33,38 @@
  * fix trailing ; with comments within rules
  * fix comment indentation
 
-1.2.0 / 2013-05-21 
+1.2.0 / 2013-05-21
 ==================
 
  * add @document compilation. Closes #82
 
-1.1.0 / 2013-03-19 
+1.1.0 / 2013-03-19
 ==================
 
   * add omission of comments when compressed
   * add comment support
 
-1.0.5 / 2013-03-15 
+1.0.5 / 2013-03-15
 ==================
 
   * fix indentation of multiple selectors in @media. Closes #11
 
-1.0.4 / 2012-11-15 
+1.0.4 / 2012-11-15
 ==================
 
   * fix indentation
 
-1.0.3 / 2012-09-04 
+1.0.3 / 2012-09-04
 ==================
 
   * add __@charset__ support [rstacruz]
 
-1.0.2 / 2012-09-01 
+1.0.2 / 2012-09-01
 ==================
 
   * add component support
 
-1.0.1 / 2012-07-26 
+1.0.1 / 2012-07-26
 ==================
 
   * add "selectors" array support

lib/compress.js

@@ -155,6 +155,17 @@ Compiler.prototype['font-face'] = function(node){
     + this.emit('}');
 };
 
+/**
+ * Visit host node.
+ */
+
+Compiler.prototype.host = function(node){
+  return this.emit('@host', node.position, true)
+    + this.emit('{')
+    + this.mapVisit(node.rules)
+    + this.emit('}');
+};
+
 /**
  * Visit rule node.
  */

lib/identity.js

@@ -187,6 +187,21 @@ Compiler.prototype['font-face'] = function(node){
     + this.emit('\n}');
 };
 
+/**
+ * Visit host node.
+ */
+
+Compiler.prototype.host = function(node){
+  return this.emit('@host', node.position, true)
+    + this.emit(
+        ' {\n'
+        + this.indent(1))
+    + this.mapVisit(node.rules, '\n\n')
+    + this.emit(
+        this.indent(-1)
+        + '\n}');
+};
+
 /**
  * Visit rule node.
  */

test/cases/host.compressed.css

@@ -0,0 +1 @@
+@host{:scope{display:block;}}

test/cases/host.css

@@ -0,0 +1,5 @@
+@host {
+  :scope {
+    display: block;
+  }
+}