import { Device } from '../Device';
import { ShaderType, ShaderTypeOption } from '../enums';
/**
 * Constructor options for {@link Shader}
 *
 * @public
 */
export interface ShaderOptions {
    /**
     * The shader source code
     */
    source?: string;
    /**
     * The shader type e.g. VertexShader or Fragment shader
     */
    type: ShaderTypeOption;
    /**
     * A {@link https://developer.mozilla.org/en-US/docs/Web/API/WebGLShader | WebGLShader} object to be reused
     */
    handle?: WebGLShader;
}
/**
 * A wrapper class around the {@link https://developer.mozilla.org/en-US/docs/Web/API/WebGLShader | WebGLShader}
 *
 * @public
 */
export declare abstract class Shader {
    static readonly OptionsSymbol: unique symbol;
    /**
     * A unique id
     */
    readonly uid: string;
    /**
     * The graphics device
     */
    abstract readonly device: Device;
    /**
     * The shader source code
     */
    source: string;
    /**
     * The shader type as a  WebGL constant
     */
    type: ShaderType;
    /**
     * The shader type as readable name e.g. VertexShader or FragmentShader
     */
    typeName: string;
    /**
     * Whether compilation was successful
     */
    compiled: boolean;
    /**
     * Releases the shader handle
     */
    abstract destroy(): this;
    /**
     * Compiles the shader source code
     */
    abstract compile(): this;
    /**
     * Creates a clone of this shader
     */
    clone(): Shader;
}
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