import { InterpolationSamplingMode, InterpolationSamplingType } from "../../constants.js";
import NodeVar from "./NodeVar.js";

/**
 * {@link NodeBuilder} is going to create instances of this class during the build process
 * of nodes. They represent the final shader varyings that are going to be generated
 * by the builder. An array of node varyings is maintained in {@link NodeBuilder#varyings} for
 * this purpose.
 *
 * @augments NodeVar
 */
declare class NodeVarying extends NodeVar {
    /**
     * Constructs a new node varying.
     *
     * @param {string} name - The name of the varying.
     * @param {string} type - The type of the varying.
     * @param {?string} interpolationType - The interpolation type of the varying.
     * @param {?string} interpolationSampling - The interpolation sampling type of the varying.
     */
    constructor(
        name: string,
        type: string,
        interpolationType?: InterpolationSamplingType | null,
        interpolationSampling?: InterpolationSamplingMode | null,
    );
    /**
     * Whether this varying requires interpolation or not. This property can be used
     * to check if the varying can be optimized for a variable.
     *
     * @type {boolean}
     * @default false
     */
    needsInterpolation: boolean;
    /**
     * This flag can be used for type testing.
     *
     * @type {boolean}
     * @readonly
     * @default true
     */
    readonly isNodeVarying: boolean;
    /**
     * The interpolation type of the varying data.
     *
     * @type {?string}
     * @default null
     */
    interpolationType: InterpolationSamplingType | null;
    /**
     * The interpolation sampling type of varying data.
     *
     * @type {?string}
     * @default null
     */
    interpolationSampling: InterpolationSamplingMode | null;
}

export default NodeVarying;