Uses more QDEL_NULLs

code/modules/admin/buildmode.dm

@@ -376,10 +376,8 @@
 	return 1
 
 /datum/click_intercept/buildmode/proc/deselect_region()
-	qdel(cornerA)
-	cornerA = null
-	qdel(cornerB)
-	cornerB = null
+	QDEL_NULL(cornerA)
+	QDEL_NULL(cornerB)
 
 /datum/click_intercept/buildmode/proc/Reset()//Reset temporary variables
 	deselect_region()

code/modules/clothing/spacesuits/rig/modules/computer.dm

@@ -165,11 +165,9 @@
 			to_chat(user, "<span class='danger'>You purge the remaining scraps of data from your previous AI, freeing it for use.</span>")
 			if(integrated_ai)
 				integrated_ai.ghostize()
-				qdel(integrated_ai)
-				integrated_ai = null
+				QDEL_NULL(integrated_ai)
 			if(ai_card)
-				qdel(ai_card)
-				ai_card = null
+				QDEL_NULL(ai_card)
 		else if(user)
 			user.put_in_hands(ai_card)
 		else

code/modules/food_and_drinks/drinks/bottler/bottler.dm

@@ -287,8 +287,7 @@
 	flick("bottler_on", src)
 	spawn(45)
 		for(var/i = 1, i <= slots.len, i++)
-			qdel(slots[i])
-			slots[i] = null
+			QDEL_NULL(slots[i])
 		bottling = 0
 		drink_container.forceMove(loc)
 		updateUsrDialog()
@@ -406,4 +405,4 @@
 	else if(bottling)
 		icon_state = "bottler_on"
 	else
-		icon_state = "bottler_off"
+		icon_state = "bottler_off"

code/modules/hydroponics/gene_modder.dm

@@ -296,8 +296,7 @@
 							var/datum/plant_gene/core/gene = disk.gene
 							gene.value = min(gene.value, max_extract_pot)
 						disk.update_name()
-						qdel(seed)
-						seed = null
+						QDEL_NULL(seed)
 						update_icon()
 				if("replace")
 					if(disk && disk.gene && istype(disk.gene, G.type) && istype(G, /datum/plant_gene/core))
@@ -421,4 +420,4 @@
 /obj/item/weapon/storage/box/disks_plantgene/New()
 	..()
 	for(var/i in 1 to 7)
-		new /obj/item/weapon/disk/plantgene(src)
+		new /obj/item/weapon/disk/plantgene(src)

code/modules/hydroponics/hydroponics.dm

@@ -373,8 +373,7 @@
 	var/oldPlantName
 	if(myseed) // In case there's nothing in the tray beforehand
 		oldPlantName = myseed.plantname
-		qdel(myseed)
-		myseed = null
+		QDEL_NULL(myseed)
 	else
 		oldPlantName = "empty tray"
 	switch(rand(1,18))		// randomly pick predominative weed
@@ -422,8 +421,7 @@
 	var/oldPlantName = myseed.plantname
 	if(myseed.mutatelist.len > 0)
 		var/mutantseed = pick(myseed.mutatelist)
-		qdel(myseed)
-		myseed = null
+		QDEL_NULL(myseed)
 		myseed = new mutantseed
 	else
 		return
@@ -445,8 +443,7 @@
 /obj/machinery/hydroponics/proc/mutateweed() // If the weeds gets the mutagent instead. Mind you, this pretty much destroys the old plant
 	if( weedlevel > 5 )
 		if(myseed)
-			qdel(myseed)
-			myseed = null
+			QDEL_NULL(myseed)
 		var/newWeed = pick(/obj/item/seeds/liberty, /obj/item/seeds/angel, /obj/item/seeds/nettle/death, /obj/item/seeds/kudzu)
 		myseed = new newWeed
 		dead = 0
@@ -914,8 +911,7 @@
 			plant_health = 0
 			if(harvest)
 				harvest = FALSE //To make sure they can't just put in another seed and insta-harvest it
-			qdel(myseed)
-			myseed = null
+			QDEL_NULL(myseed)
 			plant_hud_set_health()
 			plant_hud_set_status()
 		adjustWeeds(-10) //Has a side effect of cleaning up those nasty weeds
@@ -935,8 +931,7 @@
 	else if(dead)
 		dead = 0
 		to_chat(user, "<span class='notice'>You remove the dead plant from [src].</span>")
-		qdel(myseed)
-		myseed = null
+		QDEL_NULL(myseed)
 		update_icon()
 		plant_hud_set_status()
 		plant_hud_set_health()
@@ -953,8 +948,7 @@
 	else
 		to_chat(user, "<span class='notice'>You harvest [myseed.getYield()] items from the [myseed.plantname].</span>")
 	if(!myseed.get_gene(/datum/plant_gene/trait/repeated_harvest))
-		qdel(myseed)
-		myseed = null
+		QDEL_NULL(myseed)
 		dead = 0
 	plant_hud_set_status()
 	plant_hud_set_health()
@@ -1041,4 +1035,4 @@
 	else
 		..()
 
-#undef HYDRO_CYCLES_PER_AGE
+#undef HYDRO_CYCLES_PER_AGE

code/modules/library/computers/checkout.dm

@@ -178,8 +178,7 @@
 				M = new manual_type()
 				dat += "<tr><td><A href='?src=[UID()];manual=[manualcount]'>[M.title]</A></td></tr>"
 				manualcount++
-				qdel(M)
-				M = null
+				QDEL_NULL(M)
 			dat += "</table>"
 			dat += "<BR><A href='?src=[UID()];switchscreen=0'>(Return to main menu)</A><BR>"
 

code/modules/mining/equipment_locker.dm

@@ -1040,8 +1040,7 @@
 		mark = 0
 		if(L.mob_size >= MOB_SIZE_LARGE)
 			L.underlays -= marked_image
-			qdel(marked_image)
-			marked_image = null
+			QDEL_NULL(marked_image)
 			var/backstab = check_target_facings(user, L)
 			var/def_check = L.getarmor(type = "bomb")
 			if(backstab == FACING_INIT_FACING_TARGET_TARGET_FACING_PERPENDICULAR || backstab == FACING_SAME_DIR)

code/modules/mob/living/silicon/robot/robot.dm

@@ -1206,8 +1206,7 @@ var/list/robot_verbs_default = list(
 	scrambledcodes = 1
 	//Disconnect it's camera so it's not so easily tracked.
 	if(src.camera)
-		qdel(src.camera)
-		src.camera = null
+		QDEL_NULL(src.camera)
 		// I'm trying to get the Cyborg to not be listed in the camera list
 		// Instead of being listed as "deactivated". The downside is that I'm going
 		// to have to check if every camera is null or not before doing anything, to prevent runtime errors.

code/modules/mob/living/simple_animal/bot/cleanbot.dm

@@ -167,9 +167,8 @@
 	mode = BOT_CLEANING
 	spawn(50)
 		if(mode == BOT_CLEANING)
-			qdel(target)
+			QDEL_NULL(target)
 			anchored = 0
-			target = null
 		mode = BOT_IDLE
 		icon_state = "cleanbot[on]"
 
@@ -222,4 +221,4 @@ text("<A href='?src=[UID()];power=1'>[on ? "On" : "Off"]</A>"))
 	if(istype(A,/obj/effect/decal/cleanable))
 		clean(A)
 	else
-		..()
+		..()

code/modules/modular_computers/file_system/programs/generic/ntnrc_client.dm

@@ -213,8 +213,7 @@
 		if("PRG_deletechannel")
 			. = 1
 			if(channel && ((channel.operator == src) || netadmin_mode))
-				qdel(channel)
-				channel = null
+				QDEL_NULL(channel)
 		if("PRG_setpassword")
 			. = 1
 			if(!channel || ((channel.operator != src) && !netadmin_mode))
@@ -228,4 +227,4 @@
 			if(newpassword == "nopassword")
 				channel.password = ""
 			else
-				channel.password = newpassword
+				channel.password = newpassword

code/modules/modular_computers/laptop_vendor.dm

@@ -32,11 +32,9 @@
 	state = 0
 	devtype = 0
 	if(fabricated_laptop)
-		qdel(fabricated_laptop)
-		fabricated_laptop = null
+		QDEL_NULL(fabricated_laptop)
 	if(fabricated_tablet)
-		qdel(fabricated_tablet)
-		fabricated_tablet = null
+		QDEL_NULL(fabricated_tablet)
 	dev_cpu = 1
 	dev_battery = 1
 	dev_disk = 1
@@ -303,4 +301,4 @@ obj/machinery/lapvend/attackby(obj/item/I, mob/user)
 			T.time = worldtime2text()
 			vendor_account.transaction_log.Add(T)
 			return 1
-		return 0
+		return 0

code/modules/ninja/suit/suit_initialisation.dm

@@ -29,8 +29,7 @@
 			sleep(10)
 			to_chat(usr, "<span style='color: #0000ff;'>Disconnecting neural-net interface...</span> <span style='color: #32CD32'><b>Success</b>.</span>")
 			if(usr.hud_used)
-				qdel(usr.hud_used)
-				usr.hud_used = null
+				QDEL_NULL(usr.hud_used)
 			usr.create_mob_hud()
 			usr.regenerate_icons()
 
@@ -65,8 +64,7 @@
 			sleep(5)
 			to_chat(usr, "<span style='color: #0000ff;'>Suit secured, extending neural-net interface...</span>")
 			if(usr.hud_used)
-				qdel(usr.hud_used)
-				usr.hud_used = null
+				QDEL_NULL(usr.hud_used)
 			usr.hud_used = new /datum/hud/human(usr, 'icons/mob/screen_ninja.dmi', "#ffffff", 255)
 			if(usr.hud_used)
 				usr.hud_used.show_hud(usr.hud_used.hud_version)
@@ -91,4 +89,4 @@
 			to_chat(usr, "<span style='color: #0000ff;'><b>NOTICE: </b>Suit de-activation protocals aborted.</span>")
 	else
 		to_chat(usr, "<span style='color: #ff0000;'><b>FĆAL �Rr�R</b>: ŧer nt recgnized, c-cntr-r䣧-ç äcked.")
-		return
+		return

code/modules/projectiles/firing.dm

@@ -43,8 +43,7 @@
 	if(targloc == curloc)
 		if(target) //if the target is right on our location we go straight to bullet_act()
 			target.bullet_act(BB, BB.def_zone)
-		qdel(BB)
-		BB = null
+		QDEL_NULL(BB)
 		return 1
 
 	BB.preparePixelProjectile(target, targloc, user, params, spread)

code/modules/spacepods/spacepod.dm

@@ -377,8 +377,7 @@
 				user.visible_message(user, "<span class='warning'>[user] is drilling through the [src]'s lock!</span>",
 					"<span class='notice'>You start drilling through the [src]'s lock!</span>")
 				if(do_after(user, 100 * W.toolspeed, target = src))
-					qdel(equipment_system.lock_system)
-					equipment_system.lock_system = null
+					QDEL_NULL(equipment_system.lock_system)
 					user.visible_message(user, "<span class='warning'>[user] has destroyed the [src]'s lock!</span>",
 						"<span class='notice'>You destroy the [src]'s lock!</span>")
 				else