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, 31 insertions, 1 deletions

diff --git a/nexgb/xevie/xevie.go b/nexgb/xevie/xevie.go
index ef02e2c..0628ffd 100644
--- a/nexgb/xevie/xevie.go
+++ b/nexgb/xevie/xevie.go
@@ -2,7 +2,7 @@
 package xevie
 
 /*
-	This file was generated by xevie.xml on May 11 2012 1:58:36am EDT.
+	This file was generated by xevie.xml on May 11 2012 11:57:19pm EDT.
 	This file is automatically generated. Edit at your peril!
 */
 
@@ -122,6 +122,9 @@ 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["XEVIE"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return QueryVersionCookie{cookie}
@@ -130,6 +133,9 @@ 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["XEVIE"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return QueryVersionCookie{cookie}
@@ -214,6 +220,9 @@ type StartCookie struct {
 // Start sends a checked request.
 // If an error occurs, it will be returned with the reply by calling StartCookie.Reply()
 func Start(c *xgb.Conn, Screen uint32) StartCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'Start' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(startRequest(c, Screen), cookie)
 	return StartCookie{cookie}
@@ -222,6 +231,9 @@ func Start(c *xgb.Conn, Screen uint32) StartCookie {
 // StartUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func StartUnchecked(c *xgb.Conn, Screen uint32) StartCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'Start' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(startRequest(c, Screen), cookie)
 	return StartCookie{cookie}
@@ -295,6 +307,9 @@ type EndCookie struct {
 // End sends a checked request.
 // If an error occurs, it will be returned with the reply by calling EndCookie.Reply()
 func End(c *xgb.Conn, Cmap uint32) EndCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'End' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(endRequest(c, Cmap), cookie)
 	return EndCookie{cookie}
@@ -303,6 +318,9 @@ func End(c *xgb.Conn, Cmap uint32) EndCookie {
 // EndUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func EndUnchecked(c *xgb.Conn, Cmap uint32) EndCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'End' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(endRequest(c, Cmap), cookie)
 	return EndCookie{cookie}
@@ -376,6 +394,9 @@ type SendCookie struct {
 // Send sends a checked request.
 // If an error occurs, it will be returned with the reply by calling SendCookie.Reply()
 func Send(c *xgb.Conn, Event Event, DataType uint32) SendCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'Send' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(sendRequest(c, Event, DataType), cookie)
 	return SendCookie{cookie}
@@ -384,6 +405,9 @@ func Send(c *xgb.Conn, Event Event, DataType uint32) SendCookie {
 // SendUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func SendUnchecked(c *xgb.Conn, Event Event, DataType uint32) SendCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'Send' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(sendRequest(c, Event, DataType), cookie)
 	return SendCookie{cookie}
@@ -465,6 +489,9 @@ type SelectInputCookie struct {
 // SelectInput sends a checked request.
 // If an error occurs, it will be returned with the reply by calling SelectInputCookie.Reply()
 func SelectInput(c *xgb.Conn, EventMask uint32) SelectInputCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'SelectInput' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(selectInputRequest(c, EventMask), cookie)
 	return SelectInputCookie{cookie}
@@ -473,6 +500,9 @@ func SelectInput(c *xgb.Conn, EventMask uint32) SelectInputCookie {
 // SelectInputUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func SelectInputUnchecked(c *xgb.Conn, EventMask uint32) SelectInputCookie {
+	if _, ok := c.Extensions["XEVIE"]; !ok {
+		panic("Cannot issue request 'SelectInput' using the uninitialized extension 'XEVIE'. xevie.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(selectInputRequest(c, EventMask), cookie)
 	return SelectInputCookie{cookie}