export declare enum TokenKind {
    LParen = 0,
    RParen = 1,
    LCurly = 2,
    RCurly = 3,
    Colon = 4,
    Lt = 5,
    Lte = 6,
    Gt = 7,
    Gte = 8,
    String = 9,
    Ident = 10,
    And = 11,
    Or = 12,
    Not = 13,
    Whitespace = 14,
    EOF = 15
}
export interface Token {
    kind: TokenKind;
    value: string;
    start: number;
    end: number;
}
export declare type RangeOperator = 'lt' | 'lte' | 'gt' | 'gte';
export interface LiteralNode {
    type: 'literal';
    value: string;
    isQuoted: boolean;
    isWildcard: boolean;
    start: number;
    end: number;
}
export interface ValueListNode {
    type: 'valueList';
    values: KQLNode[];
    start: number;
    end: number;
}
export interface IsNode {
    type: 'is';
    /** null when matching the default field (bare value expression) */
    field: LiteralNode | null;
    /** null when the input is incomplete (e.g. "field:") */
    value: LiteralNode | ValueListNode | null;
    start: number;
    end: number;
}
export interface RangeNode {
    type: 'range';
    field: LiteralNode;
    operator: RangeOperator;
    value: LiteralNode | null;
    start: number;
    end: number;
}
export interface NotNode {
    type: 'not';
    child: KQLNode | null;
    start: number;
    end: number;
}
export interface AndNode {
    type: 'and';
    children: KQLNode[];
    start: number;
    end: number;
}
export interface OrNode {
    type: 'or';
    children: KQLNode[];
    start: number;
    end: number;
}
export interface NestedNode {
    type: 'nested';
    field: LiteralNode;
    query: KQLNode | null;
    start: number;
    end: number;
}
export declare type KQLNode = OrNode | AndNode | NotNode | NestedNode | IsNode | RangeNode | ValueListNode | LiteralNode;
export interface KQLQuery {
    root: KQLNode | null;
    errors: ParseError[];
}
export interface ParseError {
    message: string;
    start: number;
    end: number;
}
export declare type SituationKind = 'NONE' | 'IN_FIELD' | 'AFTER_FIELD' | 'IN_VALUE' | 'IN_VALUE_LIST' | 'AFTER_EXPRESSION' | 'IN_NESTED';
export interface Situation {
    kind: SituationKind;
    prefix: string;
    replaceRange: {
        start: number;
        end: number;
    };
    /** Field name for value completion (IN_VALUE / IN_VALUE_LIST), dotted inside nested queries */
    fieldName?: string;
    /** Dotted nested path when inside path:{ } (IN_NESTED), e.g. "user.tags" */
    nestedPath?: string;
    /** True when the cursor is inside an existing quoted string */
    insideString?: boolean;
}