Remove newSystemVar

src/necsus/compiletime/localGen.nim

@@ -7,14 +7,7 @@ proc worldFields(name: string, dir: MonoDirective): seq[WorldField] =
     @[ (name, nnkBracketExpr.newTree(bindSym("SystemVarData"), dir.argType)) ]
 
 proc generateLocal(details: GenerateContext, arg: SystemArg, name: string, dir: MonoDirective): NimNode =
-    case details.hook
-    of Standard:
-        let varIdent = ident(name)
-        let argType = dir.argType
-        return quote:
-            `appStateIdent`.`varIdent` = newSystemVar[`argType`]()
-    else:
-        return newEmptyNode()
+    return newEmptyNode()
 
 proc systemArg(name: string, dir: MonoDirective): NimNode =
     let nameIdent = name.ident
@@ -23,7 +16,7 @@ proc systemArg(name: string, dir: MonoDirective): NimNode =
 
 let localGenerator* {.compileTime.} = newGenerator(
     ident = "Local",
-    interest = { Standard },
+    interest = {},
     generate = generateLocal,
     chooseName = chooseLocalName,
     worldFields = worldFields,

src/necsus/compiletime/sharedGen.nim

@@ -9,9 +9,6 @@ proc generateShared(details: GenerateContext, arg: SystemArg, name: string, dir:
     case details.hook
     of Standard:
         let varIdent = ident(name)
-        let argType = dir.argType
-        result.add quote do:
-            `appStateIdent`.`varIdent` = newSystemVar[`argType`]()
 
         # Fill in any values from arguments passed to the app
         for (inputName, inputDir) in details.inputs:

src/necsus/runtime/systemVar.nim

@@ -21,10 +21,6 @@ type
 
 proc extract[T](sysvar: SystemVar[T]): ptr SystemVarData[T] {.inline.} = cast[ptr SystemVarData[T]](sysvar)
 
-proc newSystemVar*[T](): SystemVarData[T] =
-    ## Constructor
-    SystemVarData[T](value: none(T))
-
 proc isEmpty*[T](sysvar: SystemVar[T]): bool {.inline.} =
     ## Returns whether a system variable has a value
     sysvar.extract.value.isNone