Update to PostCSS 5.0

lib/pixrem.js

@@ -50,10 +50,10 @@ Pixrem.prototype.postcss = function (css) {
 
   if (_options.html) {
     // First, check root font-size
-    css.eachRule(function (rule) {
+    css.walkRules(function (rule) {
       if (rule.parent && rule.parent.type === 'atrule') { return; }
       if (/^(html|:root)$/.test(rule.selectors)) {
-        rule.eachDecl(function (decl) {
+        rule.walkDecls(function (decl) {
           if (decl.prop === 'font-size') {
             _rootvalue = decl.value;
           } else if (decl.prop === 'font' && decl.value.match(/\d/)) {
@@ -65,7 +65,7 @@ Pixrem.prototype.postcss = function (css) {
   }
 
   //Then, for each rules
-  css.eachRule(function (rule) {
+  css.walkRules(function (rule) {
 
     // if options.at-rules is false AND it's not IE9-10: skip @rules
     if (!_options.atrules && !isIE9_10) {
@@ -100,9 +100,9 @@ Pixrem.prototype.postcss = function (css) {
             decl.value = value;
           } else {
             var clone = decl.clone({ value: value });
-            if (decl.before) {
-              clone.before = decl.before;
-              decl.before = reduceLineBreaks(decl.before);
+            if (decl.raws.before) {
+              clone.raws.before = decl.raws.before;
+              decl.raws.before = reduceLineBreaks(decl.raws.before);
             }
             rule.insertBefore(i, clone);
           }

package.json

@@ -24,7 +24,7 @@
   },
   "dependencies": {
     "browserslist": "^0.5.0",
-    "postcss": "^4.0.0",
+    "postcss": "^5.0.0",
     "reduce-css-calc": "^1.2.0"
   },
   "devDependencies": {