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, 7 deletions

diff --git a/nexgb/res/res.go b/nexgb/res/res.go
index 56f4691..c5700c3 100644
--- a/nexgb/res/res.go
+++ b/nexgb/res/res.go
@@ -2,7 +2,7 @@
 package res
 
 /*
-	This file was generated by res.xml on May 11 2012 1:58:36am EDT.
+	This file was generated by res.xml on May 11 2012 11:57:19pm EDT.
 	This file is automatically generated. Edit at your peril!
 */
 
@@ -40,6 +40,12 @@ func init() {
 	xgb.NewExtErrorFuncs["X-Resource"] = make(map[int]xgb.NewErrorFun)
 }
 
+// Skipping definition for base type 'Int8'
+
+// Skipping definition for base type 'Card16'
+
+// Skipping definition for base type 'Char'
+
 // Skipping definition for base type 'Card32'
 
 // Skipping definition for base type 'Double'
@@ -58,12 +64,6 @@ func init() {
 
 // Skipping definition for base type 'Byte'
 
-// Skipping definition for base type 'Int8'
-
-// Skipping definition for base type 'Card16'
-
-// Skipping definition for base type 'Char'
-
 type Client struct {
 	ResourceBase uint32
 	ResourceMask uint32
@@ -180,6 +180,9 @@ 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, ClientMajor byte, ClientMinor byte) QueryVersionCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajor, ClientMinor), cookie)
 	return QueryVersionCookie{cookie}
@@ -188,6 +191,9 @@ func QueryVersion(c *xgb.Conn, ClientMajor byte, ClientMinor byte) QueryVersionC
 // 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, ClientMajor byte, ClientMinor byte) QueryVersionCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryVersionRequest(c, ClientMajor, ClientMinor), cookie)
 	return QueryVersionCookie{cookie}
@@ -269,6 +275,9 @@ type QueryClientsCookie struct {
 // QueryClients sends a checked request.
 // If an error occurs, it will be returned with the reply by calling QueryClientsCookie.Reply()
 func QueryClients(c *xgb.Conn) QueryClientsCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClients' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryClientsRequest(c), cookie)
 	return QueryClientsCookie{cookie}
@@ -277,6 +286,9 @@ func QueryClients(c *xgb.Conn) QueryClientsCookie {
 // QueryClientsUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func QueryClientsUnchecked(c *xgb.Conn) QueryClientsCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClients' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryClientsRequest(c), cookie)
 	return QueryClientsCookie{cookie}
@@ -355,6 +367,9 @@ type QueryClientResourcesCookie struct {
 // QueryClientResources sends a checked request.
 // If an error occurs, it will be returned with the reply by calling QueryClientResourcesCookie.Reply()
 func QueryClientResources(c *xgb.Conn, Xid uint32) QueryClientResourcesCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClientResources' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryClientResourcesRequest(c, Xid), cookie)
 	return QueryClientResourcesCookie{cookie}
@@ -363,6 +378,9 @@ func QueryClientResources(c *xgb.Conn, Xid uint32) QueryClientResourcesCookie {
 // QueryClientResourcesUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func QueryClientResourcesUnchecked(c *xgb.Conn, Xid uint32) QueryClientResourcesCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClientResources' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryClientResourcesRequest(c, Xid), cookie)
 	return QueryClientResourcesCookie{cookie}
@@ -444,6 +462,9 @@ type QueryClientPixmapBytesCookie struct {
 // QueryClientPixmapBytes sends a checked request.
 // If an error occurs, it will be returned with the reply by calling QueryClientPixmapBytesCookie.Reply()
 func QueryClientPixmapBytes(c *xgb.Conn, Xid uint32) QueryClientPixmapBytesCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClientPixmapBytes' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(queryClientPixmapBytesRequest(c, Xid), cookie)
 	return QueryClientPixmapBytesCookie{cookie}
@@ -452,6 +473,9 @@ func QueryClientPixmapBytes(c *xgb.Conn, Xid uint32) QueryClientPixmapBytesCooki
 // QueryClientPixmapBytesUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func QueryClientPixmapBytesUnchecked(c *xgb.Conn, Xid uint32) QueryClientPixmapBytesCookie {
+	if _, ok := c.Extensions["X-RESOURCE"]; !ok {
+		panic("Cannot issue request 'QueryClientPixmapBytes' using the uninitialized extension 'X-Resource'. res.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(queryClientPixmapBytesRequest(c, Xid), cookie)
 	return QueryClientPixmapBytesCookie{cookie}