variants.nim

type
    NodeKind = enum
        nkValue,
        nkLiteral,
        nkSymbol,
        nkPair,
        nkLookupVal,
        nkIf,
        nkIfAsync,
        nkInlineIf,
        nkFor,
        nkAsyncEach,
        nkAsyncAll,
        nkMacro,
        nkCaller,
        nkImport,
        nkFromImport,
        nkFunCall,
        nkFilter,
        nkFilterAsync,
        nkBlock,
        nkSuper,
        nkTemplateRef,
        nkExtends,
        nkInclude,
        nkSet,
        nkCapture,
        nkTemplateData,
        nkUnaryOp,
        nkBinaryOp,
        nkIn,
        nkOr,
        nkAnd,
        nkNot,
        nkAdd,
        nkConcat,
        nkSub,
        nkMul,
        nkDiv,
        nkFloorDiv,
        nkMod,
        nkPow,
        nkNeg,
        nkPos,
        nkCompare,
        nkCompareOperand,
        nkCallExtension,
        nkCallExtensionAsync
    Node* = ref NodeObj
    NodeObj = object
        nodeId* : int
        line*, column* : int
        case kind: NodeKind
        of nkValue, nkSymbol, nkLiteral, nkTemplateData:
            value: string
        of nkPair:
            pairKey, pairValue: string
        of nkLookupVal:
            lookupTarget, lookupVal: string
        of nkIf, nkInlineIf, nkIfAsync:
            ifCond, ifBody, ifElse: string
        of nkFor, nkAsyncEach, nkAsyncAll:
            forArr: seq[Node]
            forName, forBody, forElse: string
        of nkMacro, nkCaller:
            macroName, macroBody: string
            macroArgs: seq[string]
        of nkImport:
            importTemplate, importTarget: string
            importWithContext: bool
        of nkFromImport:
            fiTemplate: string
            fiName: seq[string]
            fiWithContext: bool
        of nkFunCall, nkFilter:
            funName: string
            funArgs: seq[string]
        of nkFilterAsync:
            filterName, filterSymbol: string
            filterArgs: seq[string]
        of nkBlock:
            blkName, blkBody: string
        of nkSuper:
            sBlockName, sSymbol: string
        of nkTemplateRef, nkExtends:
            templateName: string
        of nkInclude:
            incTemplateName: string
            incIgnoreMissing: bool
        of nkSet:
            setTargets: seq[string]
            setValue: string
        of nkCapture:
            captureBody: string
        of nkUnaryOp, nkNeg, nkPos:
            target: string
        of nkBinaryOp, nkIn, nkOr, nkAnd, nkNot, nkAdd, nkConcat, nkSub, nkMul, nkDiv, nkFloorDiv, nkMod, nkPow:
            left, right: string
        of nkCompare:
            expression: string
            ops: seq[string]
        of nkCompareOperand:
            opExpression, opType: string
        of nkCallExtension, nkCallExtensionAsync:
            extName, extProp: string
            extArgs, extContentArgs: seq[string]
    NodeListKind = enum
        nlkRoot,
        nlkGroup,
        nlkArray,
        nlkDict,
        nlkKeywordArgs
    NodeList* = ref NodeListObj
    NodeListObj = object
        listId* : int
        line*, column* : int
        case kind: NodeListKind
        of nlkRoot, nlkGroup, nlkArray, nlkDict, nlkKeywordArgs:
            children* : seq[Node]