TNodeKind = enum
  nkNone, nkEmpty, nkIdent, nkSym, nkType, nkCharLit, nkIntLit, nkInt8Lit,
  nkInt16Lit, nkInt32Lit, nkInt64Lit, nkUIntLit, nkUInt8Lit, nkUInt16Lit,
  nkUInt32Lit, nkUInt64Lit, nkFloatLit, nkFloat32Lit, nkFloat64Lit,
  nkFloat128Lit, nkStrLit, nkRStrLit, nkTripleStrLit, nkNilLit, nkComesFrom,
  nkDotCall, nkCommand, nkCall, nkCallStrLit, nkInfix, nkPrefix, nkPostfix,
  nkHiddenCallConv, nkExprEqExpr, nkExprColonExpr, nkIdentDefs, nkVarTuple,
  nkPar, nkObjConstr, nkCurly, nkCurlyExpr, nkBracket, nkBracketExpr,
  nkPragmaExpr, nkRange, nkDotExpr, nkCheckedFieldExpr, nkDerefExpr, nkIfExpr,
  nkElifExpr, nkElseExpr, nkLambda, nkDo, nkAccQuoted, nkTableConstr, nkBind,
  nkClosedSymChoice, nkOpenSymChoice, nkHiddenStdConv, nkHiddenSubConv, nkConv,
  nkCast, nkStaticExpr, nkAddr, nkHiddenAddr, nkHiddenDeref, nkObjDownConv,
  nkObjUpConv, nkChckRangeF, nkChckRange64, nkChckRange, nkStringToCString,
  nkCStringToString, nkAsgn, nkFastAsgn, nkGenericParams, nkFormalParams,
  nkOfInherit, nkImportAs, nkProcDef, nkMethodDef, nkConverterDef, nkMacroDef,
  nkTemplateDef, nkIteratorDef, nkOfBranch, nkElifBranch, nkExceptBranch,
  nkElse, nkAsmStmt, nkPragma, nkPragmaBlock, nkIfStmt, nkWhenStmt, nkForStmt,
  nkParForStmt, nkWhileStmt, nkCaseStmt, nkTypeSection, nkVarSection,
  nkLetSection, nkConstSection, nkConstDef, nkTypeDef, nkYieldStmt, nkDefer,
  nkTryStmt, nkFinally, nkRaiseStmt, nkReturnStmt, nkBreakStmt, nkContinueStmt,
  nkBlockStmt, nkStaticStmt, nkDiscardStmt, nkStmtList, nkImportStmt,
  nkImportExceptStmt, nkExportStmt, nkExportExceptStmt, nkFromStmt,
  nkIncludeStmt, nkBindStmt, nkMixinStmt, nkUsingStmt, nkCommentStmt,
  nkStmtListExpr, nkBlockExpr, nkStmtListType, nkBlockType, nkWith, nkWithout,
  nkTypeOfExpr, nkObjectTy, nkTupleTy, nkTupleClassTy, nkTypeClassTy,
  nkStaticTy, nkRecList, nkRecCase, nkRecWhen, nkRefTy, nkPtrTy, nkVarTy,
  nkConstTy, nkOutTy, nkDistinctTy, nkProcTy, nkIteratorTy, nkSinkAsgn,
  nkEnumTy, nkEnumFieldDef, nkArgList, nkPattern, nkHiddenTryStmt, nkClosure,
  nkGotoState, nkState, nkBreakState, nkFuncDef, nkTupleConstr, nkError,
  nkModuleRef, nkReplayAction, nkNilRodNode, nkOpenSym

nkCallKinds = {nkCall, nkInfix, nkPrefix, nkPostfix, nkCommand, nkCallStrLit,
               nkHiddenCallConv}