remove error type

value.nim

@@ -4,10 +4,7 @@ type
   NdType* = enum
     ndNil, ndBool, ndFloat, ndString,
     ndFunct,
-    ndError,
   
-const errorTypes = {ndError}
-
 type
   NdValue* = object
     case ndType*: NdType:
@@ -22,8 +19,6 @@ type
       of ndFunct:
         placeholder*: string
         entryII*: int # entry instruction index
-      of errorTypes:
-        message*: string
   
   NatReturn* = object
     ok*: bool
@@ -43,12 +38,6 @@ proc `$`*(val: NdValue): string =
       return val.stringValue
     of ndFunct:
       return &"Function object: {val.entryII}"
-    of errorTypes:
-      let ename = $val.ndType
-      return &"{ename[2..^1]}: {val.message}"
-
-proc isError*(val: NdValue): bool =
-  val.ndType in errorTypes
 
 proc isFalsey*(val: NdValue): bool =
   val.ndType in {ndNil} or (val.ndType == ndBool and not val.boolValue)
@@ -71,8 +60,6 @@ proc equal*(val, right: NdValue): bool =
         val.stringValue == right.stringValue
       of ndFunct:
         val.entryII == right.entryII
-      of errorTypes:
-        false # error comparison is undefined
 
 # NIM VALUE TO KON VALUE WRAPPERS
 
@@ -91,9 +78,6 @@ proc newNdFunction*(ii: int): NdValue =
 proc toNdValue*: NdValue =
   NdValue(ndType: ndNil)
 
-proc ndError*(msg: string): NdValue =
-  NdValue(ndType: ndError, message: msg)
-
 # NatReturn misc
 
 proc natError*(msg: string): NatReturn {.inline.} =