Update AST location info to match SpiderMonkey

Part of #889

1 files changed, 10 insertions, 7 deletions

diff --git a/lib/handlebars/exception.js b/lib/handlebars/exception.js
index 8c5c2f6..3fde1c1 100644
--- a/lib/handlebars/exception.js
+++ b/lib/handlebars/exception.js
@@ -2,11 +2,14 @@
 var errorProps = ['description', 'fileName', 'lineNumber', 'message', 'name', 'number', 'stack'];
 
 function Exception(message, node) {
-  var line;
-  if (node && node.firstLine) {
-    line = node.firstLine;
-
-    message += ' - ' + line + ':' + node.firstColumn;
+  var loc = node && node.loc,
+      line,
+      column;
+  if (loc) {
+    line = loc.start.line;
+    column = loc.start.column;
+
+    message += ' - ' + line + ':' + column;
   }
 
   var tmp = Error.prototype.constructor.call(this, message);
@@ -16,9 +19,9 @@ function Exception(message, node) {
     this[errorProps[idx]] = tmp[errorProps[idx]];
   }
 
-  if (line) {
+  if (loc) {
     this.lineNumber = line;
-    this.column = node.firstColumn;
+    this.column = column;
   }
 }