Codification changes, Boolean slot bug fix

* Collapsed codification primitives (code, header) into a single block
* Added isEmptySlot() to BooleanArgMorph (thanks, Brian, for the bug
report!)

1 files changed, 13 insertions, 1 deletions

diff --git a/threads.js b/threads.js
index ab904ad..5aea6ec 100644
--- a/threads.js
+++ b/threads.js
@@ -83,7 +83,7 @@ ArgLabelMorph, localize*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.threads = '2013-July-04';
+modules.threads = '2013-July-09';
 
 var ThreadManager;
 var Process;
@@ -2291,6 +2291,18 @@ Process.prototype.reportTimer = function () {
     blocks - not needed to run or debug Snap
 */
 
+Process.prototype.doMapCodeOrHeader = function (aContext, anOption, aString) {
+    if (this.inputOption(anOption) === 'code') {
+        return this.doMapCode(aContext, aString);
+    }
+    if (this.inputOption(anOption) === 'header') {
+        return this.doMapHeader(aContext, aString);
+    }
+    throw new Error(
+        ' \'' + anOption + '\'\nis not a valid option'
+    );
+};
+
 Process.prototype.doMapHeader = function (aContext, aString) {
     if (aContext instanceof Context) {
         if (aContext.expression instanceof SyntaxElementMorph) {