ensure we don't tostring nils

components/widget/widget_breakdown.lua

@@ -28,13 +28,13 @@ local Breakdown = Class.new(
 ---@param injector WidgetInjector?
 ---@return string?
 function Breakdown:make(injector)
-	return tostring(Breakdown:_breakdown(self.contents, self.classes, self.contentClasses))
+	return Breakdown:_breakdown(self.contents, self.classes, self.contentClasses)
 end
 
 ---@param contents (string|number)[]
 ---@param classes string[]
 ---@param contentClasses table<integer, string[]> --can have gaps in the outer table
----@return Html?
+---@return string?
 function Breakdown:_breakdown(contents, classes, contentClasses)
 	if type(contents) ~= 'table' or contents == {} then
 		return nil
@@ -54,7 +54,7 @@ function Breakdown:_breakdown(contents, classes, contentClasses)
 		div:node(infoboxCustomCell)
 	end
 
-	return div
+	return tostring(div)
 end
 
 return Breakdown

components/widget/widget_center.lua

@@ -27,12 +27,12 @@ local Center = Class.new(
 ---@param injector WidgetInjector?
 ---@return string?
 function Center:make(injector)
-	return tostring(Center:_create(self.content, self.classes))
+	return Center:_create(self.content, self.classes)
 end
 
 ---@param content (string|number)[]
 ---@param classes string[]
----@return Html?
+---@return string?
 function Center:_create(content, classes)
 	if Table.isEmpty(content) then
 		return nil
@@ -47,7 +47,7 @@ function Center:_create(content, classes)
 		centered:wikitext(item)
 	end
 
-	return mw.html.create('div'):node(centered)
+	return tostring(mw.html.create('div'):node(centered))
 end
 
 return Center

components/widget/widget_chronology.lua

@@ -25,11 +25,11 @@ local Chronology = Class.new(
 ---@param injector WidgetInjector?
 ---@return string?
 function Chronology:make(injector)
-	return tostring(Chronology:_chronology(self.links))
+	return Chronology:_chronology(self.links)
 end
 
 ---@param links table<string, string|number|nil>
----@return Html?
+---@return string?
 function Chronology:_chronology(links)
 	if links == nil or Table.size(links) == 0 then
 		return
@@ -49,7 +49,7 @@ function Chronology:_chronology(links)
 		next = links['next' .. index]
 	end
 
-	return chronologyContent
+	return tostring(chronologyContent)
 end
 
 ---@param previous string|number|nil

components/widget/widget_highlights.lua

@@ -25,11 +25,11 @@ local Highlights = Class.new(
 ---@param injector WidgetInjector?
 ---@return string?
 function Highlights:make(injector)
-	return tostring(Highlights:_highlights(self.list))
+	return Highlights:_highlights(self.list)
 end
 
 ---@param list (string|number)[]?
----@return Html?
+---@return string?
 function Highlights:_highlights(list)
 	if list == nil or Table.size(list) == 0 then
 		return nil
@@ -44,7 +44,7 @@ function Highlights:_highlights(list)
 
 	div:node(highlights)
 
-	return div
+	return tostring(div)
 end
 
 return Highlights

components/widget/widget_title.lua

@@ -24,18 +24,18 @@ local Title = Class.new(
 ---@param injector WidgetInjector?
 ---@return string?
 function Title:make(injector)
-	return tostring(Title:_create(self.content))
+	return Title:_create(self.content)
 end
 
 ---@param infoDescription string|number|nil
----@return Html
+---@return string
 function Title:_create(infoDescription)
 	local header = mw.html.create('div')
 	header	:addClass('infobox-header')
 			:addClass('wiki-backgroundcolor-light')
 			:addClass('infobox-header-2')
 			:wikitext(infoDescription)
-	return mw.html.create('div'):node(header)
+	return tostring(mw.html.create('div'):node(header))
 end
 
 return Title