Defer font caching to font=

allowing us to cache the entire object

lib/canvas.js

@@ -108,7 +108,6 @@ function normalizedColor(prop) {
  */
 
 var parseFont = exports.parseFont = function(str){
-  if (cache[str]) return cache[str];
   var font = {}
     , captures = fontre.exec(str);
 
@@ -122,7 +121,7 @@ var parseFont = exports.parseFont = function(str){
   font.unit = captures[4];
   font.family = captures[5];
 
-  return cache[str] = font;
+  return font;
 };
 
 /**
@@ -480,11 +479,10 @@ Context2d.prototype.__defineGetter__('shadowColor', normalizedColor('lastShadowC
 Context2d.prototype.__defineSetter__('font', function(val){
   if ('string' == typeof val) {
     var font;
-    if (font = parseFont(val)) {
-      // TODO: cache
+    if (font = cache[val] || parseFont(val)) {
       // TODO: dpi
       this.lastFontString = val;
-      
+
       switch (font.unit) {
         case 'pt':
           font.size /= .75;
@@ -500,6 +498,10 @@ Context2d.prototype.__defineSetter__('font', function(val){
           break;
       }
 
+      // Cache font object
+      cache[val] = font;
+
+      // Set font
       this.setFont(
           font.weight
         , font.style
@@ -513,7 +515,6 @@ Context2d.prototype.__defineSetter__('font', function(val){
 /**
  * Get the current font.
  *
- * @see exports.parseFont()
  * @api public
  */