import Component from '@glimmer/component';
import { Scale, ScaleIdentity } from "../scale";
import { Accessor, Encoding } from "../encoding";
/**
 * A valid Mark component must have a `data` arg.
 */
interface MarkArgs {
    data: any[];
}
/**
 * This is used internally by Marks to qualify a scale with the data arg
 * on the next tick of the runloop (to avoid mutating a property twice in
 * the same render).
 *
 * @param context - A Lineal Mark comonent
 * @param scale - The scale to qualify
 * @param encoding - The encoding whose accesor to use for data lookups
 * @param field - The name of the encoded channel (used for formatting error messages)
 * @throws - When the scale has an invalid range (which is not computed as
 *           part of scale qualification)
 */
declare function qualifyScale(context: Component<MarkArgs>, scale: Scale, encoding: Encoding, field: string, data?: any[]): void;
/**
 * Given an argument value and maybe a Scale object, determines what Scale should be
 * returned (the Scale, if provided, or an Identity "pass-through" scale if the arg is
 * a static value instead of a field or accessor.
 *
 * @param arg - An accessor, typically from a Mark component's args
 * @param scale - A scale, typically from a Mark component's args
 * @returns A scale, either the provided scale or a ScaleIdentity
 */
declare function scaleFrom(arg: Accessor, scale?: Scale): ScaleIdentity | Scale | undefined;
export { MarkArgs, qualifyScale, scaleFrom };