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, 57 insertions, 9 deletions

diff --git a/nexgb/dpms/dpms.go b/nexgb/dpms/dpms.go
index 8ffb2ee..d1142ce 100644
--- a/nexgb/dpms/dpms.go
+++ b/nexgb/dpms/dpms.go
@@ -2,7 +2,7 @@
 package dpms
 
 /*
-	This file was generated by dpms.xml on May 11 2012 1:58:35am EDT.
+	This file was generated by dpms.xml on May 11 2012 11:57:19pm EDT.
 	This file is automatically generated. Edit at your peril!
 */
 
@@ -40,14 +40,6 @@ func init() {
 	xgb.NewExtErrorFuncs["DPMS"] = 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'
 
 // Skipping definition for base type 'Bool'
@@ -64,6 +56,14 @@ 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'
+
+// Skipping definition for base type 'Card32'
+
 const (
 	DPMSModeOn      = 0
 	DPMSModeStandby = 1
@@ -79,6 +79,9 @@ type GetVersionCookie struct {
 // GetVersion sends a checked request.
 // If an error occurs, it will be returned with the reply by calling GetVersionCookie.Reply()
 func GetVersion(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uint16) GetVersionCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'GetVersion' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(getVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return GetVersionCookie{cookie}
@@ -87,6 +90,9 @@ func GetVersion(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uint1
 // GetVersionUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func GetVersionUnchecked(c *xgb.Conn, ClientMajorVersion uint16, ClientMinorVersion uint16) GetVersionCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'GetVersion' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(getVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
 	return GetVersionCookie{cookie}
@@ -168,6 +174,9 @@ type CapableCookie struct {
 // Capable sends a checked request.
 // If an error occurs, it will be returned with the reply by calling CapableCookie.Reply()
 func Capable(c *xgb.Conn) CapableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Capable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(capableRequest(c), cookie)
 	return CapableCookie{cookie}
@@ -176,6 +185,9 @@ func Capable(c *xgb.Conn) CapableCookie {
 // CapableUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func CapableUnchecked(c *xgb.Conn) CapableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Capable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(capableRequest(c), cookie)
 	return CapableCookie{cookie}
@@ -254,6 +266,9 @@ type GetTimeoutsCookie struct {
 // GetTimeouts sends a checked request.
 // If an error occurs, it will be returned with the reply by calling GetTimeoutsCookie.Reply()
 func GetTimeouts(c *xgb.Conn) GetTimeoutsCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'GetTimeouts' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(getTimeoutsRequest(c), cookie)
 	return GetTimeoutsCookie{cookie}
@@ -262,6 +277,9 @@ func GetTimeouts(c *xgb.Conn) GetTimeoutsCookie {
 // GetTimeoutsUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func GetTimeoutsUnchecked(c *xgb.Conn) GetTimeoutsCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'GetTimeouts' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(getTimeoutsRequest(c), cookie)
 	return GetTimeoutsCookie{cookie}
@@ -344,6 +362,9 @@ type SetTimeoutsCookie struct {
 // SetTimeouts sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func SetTimeouts(c *xgb.Conn, StandbyTimeout uint16, SuspendTimeout uint16, OffTimeout uint16) SetTimeoutsCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'SetTimeouts' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, false)
 	c.NewRequest(setTimeoutsRequest(c, StandbyTimeout, SuspendTimeout, OffTimeout), cookie)
 	return SetTimeoutsCookie{cookie}
@@ -352,6 +373,9 @@ func SetTimeouts(c *xgb.Conn, StandbyTimeout uint16, SuspendTimeout uint16, OffT
 // SetTimeoutsChecked sends a checked request.
 // If an error occurs, it can be retrieved using SetTimeoutsCookie.Check()
 func SetTimeoutsChecked(c *xgb.Conn, StandbyTimeout uint16, SuspendTimeout uint16, OffTimeout uint16) SetTimeoutsCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'SetTimeouts' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, false)
 	c.NewRequest(setTimeoutsRequest(c, StandbyTimeout, SuspendTimeout, OffTimeout), cookie)
 	return SetTimeoutsCookie{cookie}
@@ -399,6 +423,9 @@ type EnableCookie struct {
 // Enable sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func Enable(c *xgb.Conn) EnableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Enable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, false)
 	c.NewRequest(enableRequest(c), cookie)
 	return EnableCookie{cookie}
@@ -407,6 +434,9 @@ func Enable(c *xgb.Conn) EnableCookie {
 // EnableChecked sends a checked request.
 // If an error occurs, it can be retrieved using EnableCookie.Check()
 func EnableChecked(c *xgb.Conn) EnableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Enable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, false)
 	c.NewRequest(enableRequest(c), cookie)
 	return EnableCookie{cookie}
@@ -445,6 +475,9 @@ type DisableCookie struct {
 // Disable sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func Disable(c *xgb.Conn) DisableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Disable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, false)
 	c.NewRequest(disableRequest(c), cookie)
 	return DisableCookie{cookie}
@@ -453,6 +486,9 @@ func Disable(c *xgb.Conn) DisableCookie {
 // DisableChecked sends a checked request.
 // If an error occurs, it can be retrieved using DisableCookie.Check()
 func DisableChecked(c *xgb.Conn) DisableCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Disable' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, false)
 	c.NewRequest(disableRequest(c), cookie)
 	return DisableCookie{cookie}
@@ -491,6 +527,9 @@ type ForceLevelCookie struct {
 // ForceLevel sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func ForceLevel(c *xgb.Conn, PowerLevel uint16) ForceLevelCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'ForceLevel' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, false)
 	c.NewRequest(forceLevelRequest(c, PowerLevel), cookie)
 	return ForceLevelCookie{cookie}
@@ -499,6 +538,9 @@ func ForceLevel(c *xgb.Conn, PowerLevel uint16) ForceLevelCookie {
 // ForceLevelChecked sends a checked request.
 // If an error occurs, it can be retrieved using ForceLevelCookie.Check()
 func ForceLevelChecked(c *xgb.Conn, PowerLevel uint16) ForceLevelCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'ForceLevel' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, false)
 	c.NewRequest(forceLevelRequest(c, PowerLevel), cookie)
 	return ForceLevelCookie{cookie}
@@ -540,6 +582,9 @@ type InfoCookie struct {
 // Info sends a checked request.
 // If an error occurs, it will be returned with the reply by calling InfoCookie.Reply()
 func Info(c *xgb.Conn) InfoCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Info' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(true, true)
 	c.NewRequest(infoRequest(c), cookie)
 	return InfoCookie{cookie}
@@ -548,6 +593,9 @@ func Info(c *xgb.Conn) InfoCookie {
 // InfoUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func InfoUnchecked(c *xgb.Conn) InfoCookie {
+	if _, ok := c.Extensions["DPMS"]; !ok {
+		panic("Cannot issue request 'Info' using the uninitialized extension 'DPMS'. dpms.Init(connObj) must be called first.")
+	}
 	cookie := c.NewCookie(false, true)
 	c.NewRequest(infoRequest(c), cookie)
 	return InfoCookie{cookie}