import { Context } from 'egg';
import { RouteType } from './type';
import { SchemaObject } from 'openapi3-ts';
export declare type ParamGetterType = (ctx: Context, name: string, type: any) => any;
export declare type ParamSourceEnum = 'Any' | 'Query' | 'Body' | 'Param' | 'Header';
export interface ParamInfoType {
    /** 函数参数名 */
    name: string;
    /** 请求参数名 */
    paramName: string;
    getter?: ParamGetterType;
    /** 参数类型 */
    type: any;
    /** 参数来源 */
    source: ParamSourceEnum;
    hidden?: boolean;
    /**
     * @deprecated 使用 schema 替代
     * 增强参数类型，ts-metadata
     * */
    validateType?: any;
    /** 使用 OAS3 定义 */
    schema?: SchemaObject;
    /** 是否必选 */
    required?: boolean;
}
export declare function getMethodRules(target: any, key: string): {
    param: {
        [index: string]: ParamGetterType;
    };
    config: {
        [name: string]: {
            paramName: string;
            hidden?: boolean;
            source?: ParamSourceEnum;
        };
    };
};
export declare function FromCustom(custom: ParamGetterType, paramName?: string, config?: {
    hidden?: boolean;
    source?: ParamSourceEnum;
}): ParameterDecorator;
export declare function FromBody(paramName?: string): ParameterDecorator;
export declare function FromParam(paramName?: string): ParameterDecorator;
export declare function FromQuery(paramName?: string): ParameterDecorator;
export declare function FromHeader(paramName?: string): ParameterDecorator;
export declare function getParamData(ctx: Context, typeInfo?: RouteType): Promise<any[]>;
export declare function getParamDataObj(ctx: Context, typeInfo: RouteType): Promise<any>;