A HashMap method call causes `Map contains invalid Jass scripts that couldn't be compiled by war3`

[GetLocalPlayer]

Don't know how to describe this better and what to ask, so this is probably gonna be in veins.
This specific line of code
https://github.com/GetLocalPlayer/CH/blob/7f021f6c009921779ef45acffcca52291b1d011b/wurst/Items/ItemAlias.wurst#L104
does not allow to load a map test. WC3 log says:

7/12 21:34:47.410  Map contains invalid Jass scripts that couldn't be compiled by war3, file: war3map.j @ 28930, error: unknown compile error on line 28930
7/12 21:34:47.410  Map contains invalid Jass scripts that couldn't be compiled by war3, file: war3map.j @ 28953, error: unknown compile error on line 28953
7/12 21:34:47.410  Map contains invalid Jass scripts that couldn't be compiled by war3, file: war3map.j @ 28954, error: unknown compile error on line 28954
7/12 21:34:47.410  Map contains invalid Jass scripts that couldn't be compiled by war3, file: war3map.j @ 28957, error: unknown compile error on line 28957

compiled.j

function call_nullTimer_add_ItemAlias_ItemAlias takes integer this_1, string w__wurst_stackPos returns nothing
	local player p
	local real pos_x_1
	local real pos_y_1
	local integer charges
	local integer data
	local integer index
/* ---- 28930 */ local item alias 
	local item receiver
	local item receiver_1
	local item receiver_2
	local real tuple_temp
	local real tuple_temp_1
	set wurst_stack[wurst_stack_depth] = w__wurst_stackPos
	set wurst_stack_depth = wurst_stack_depth + 1
	set p = item_getPlayer(droppedItem[this_1])
	set tuple_temp = item_getPos(droppedItem[this_1])
	set tuple_temp_1 = item_getPos_return_y
	set pos_x_1 = tuple_temp
	set pos_y_1 = tuple_temp_1
	set charges = item_getCharges(droppedItem[this_1])
	set data = item_getUserData(droppedItem[this_1])
	call item_setVisible(droppedItem[this_1], false)
	set index = dispatch_LinkedList_LinkedList_LinkedList_indexOf(ItemAlias_itemIds, droppedItemId[this_1], "when calling indexOf in ItemAlias, line 99")
	set receiver = createItem(dispatch_LinkedList_LinkedList_LinkedList_get(ItemAlias_aliasIds, index, "when calling get in ItemAlias, line 100"), pos_x_1, pos_y_1)
	call item_setPlayer(receiver, p, true)
	set receiver_1 = receiver
	call item_setCharges(receiver_1, charges)
	set receiver_2 = receiver_1
	call item_setUserData(receiver_2, data)
/* ---- 28953 */ set alias = receiver_2
/* ---- 28954 */ call dispatch_HashMap_HashMap_HashMap_put(itemByAlias_2014[this_1], itemToIndex(alias), itemToIndex(droppedItem[this_1]), "when calling put in ItemAlias, line 104")
	set wurst_stack_depth = wurst_stack_depth - 1
	set p = null
/* ---- 28957 */ set alias = null
	set receiver = null
	set receiver_1 = null
	set receiver_2 = null
endfunction

[Frotty]

the code looks correct, so I suspect that "alias" is a reserved keyword. Please try renaming the variable or enabling the "optimize" option in wurst_run.args which will rename all variables.
If this is indeed the case, I will add it to the restricted names.

[GetLocalPlayer]

You're right. It works.

[Frotty]

👍 I added aliasto the restricted names.