"Cannot peek empty loop stack" in proc definition

[Hinaichigo]

When attempting to compile /vg/station, this error occurs twice:

Error at code\datums\sun.dm:74:7: Cannot peek empty loop stack
Error at code\datums\sun.dm:74:7: Cannot peek empty loop stack

at the following location:

74 /datum/sun/proc/occlusion(const/obj/machinery/power/solar/panel/S)
75 	var/ax = S.x //Start at the solar panel.
76 	var/ay = S.y
77 	var/i
78 	var/turf/T
79 
80 	for(i = 1 to 256) //No tiles shall stay unchecked. Since the loop stops when it hit level boundaries or opaque blocks, this can't cause too much problems
81 		ax += dx //Do step
82 		ay += dy
83 
84 		T = locate(round(ax, 0.5), round(ay, 0.5), S.z)
85 
86 		if(isnull(T))
87 			warning("Occlusion's locate returned null. [S] at ([S?.x],[S?.y],[S?.z]). ax: [ax], ay: [ay], dx: [dx], dy: [dy]")
88 			break
89 		if(T.x == 1 || T.x == world.maxx || T.y == 1 || T.y == world.maxy) // Not obscured if we reach the edge.
90 			break
91 		if(T.opacity) //Opaque objects block light.
92 			S.obscured = 1
93 			return
94 
95 	S.obscured = 0 //If hit the edge or stepped 20 times, not obscured.
96 	S.update_solar_exposure()

I thought it might be related to the fact that the arg is a const, but it still occurs even if it's changed to var.

[Hinaichigo]

It seems that this has been fixed.