export type SourceLocation = {
    line: number;
    col: number;
    start: number;
    end: number;
    /** Set when a node was grafted in rather than written by hand, so an
     *  error in generated code can name who is responsible. For a template
     *  fill, `name` is the hole the content came through; for a compile-time
     *  splice, it is the generator that produced it. */
    origin?: {
        kind: "template" | "filler" | "splice";
        name: string;
    };
};
/** A `//` comment. Declared here rather than reused from `../types.js`,
 *  because that aggregate module imports BaseNode. */
export type LineComment = {
    type: "comment";
    content: string;
    loc?: SourceLocation;
};
export type BaseNode = {
    loc?: SourceLocation;
    /** A same-line `//` comment attached for Agency source formatting.
     *  Never part of the owner's `loc`. */
    trailingComment?: LineComment;
};