panic when an extension request is issued before an extension has been initialized. but give a nice error message for the happy people.

1 files changed, 7 insertions, 1 deletions

diff --git a/nexgb/ge/ge.go b/nexgb/ge/ge.go
index 42a60ea..e7592d8 100644
--- a/nexgb/ge/ge.go
+++ b/nexgb/ge/ge.go
@@ -2,7 +2,7 @@
 package ge
 
 /*
-	This file was generated by ge.xml on May 11 2012 1:58:35am EDT.
+	This file was generated by ge.xml on May 11 2012 11:57:19pm EDT.
 	This file is automatically generated. Edit at your peril!
 */
 
@@ -72,6 +72,9 @@ type QueryVersionCookie struct {
 // QueryVersion sends a checked request.
 // If an error occurs, it will be returned with the reply by calling QueryVersionCookie.Reply()
 func QueryVersion(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uint16) QueryVersionCookie {
+	if _, ok := c.Extensions["GENERIC EVENT EXTENSION"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'Generic Event Extension'. ge.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return QueryVersionCookie{cookie}
@@ -80,6 +83,9 @@ func QueryVersion(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uin
 // QueryVersionUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func QueryVersionUnchecked(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uint16) QueryVersionCookie {
+	if _, ok := c.Extensions["GENERIC EVENT EXTENSION"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'Generic Event Extension'. ge.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return QueryVersionCookie{cookie}