import { DescEnum } from "./index.js";
/**
 * Reflection information for a protobuf enumeration.
 */
export interface EnumType {
    /**
     * The fully qualified name of the enumeration.
     */
    readonly typeName: string;
    readonly values: readonly EnumValueInfo[];
    /**
     * Find an enum value by its (protobuf) name.
     */
    findName(name: string): EnumValueInfo | undefined;
    /**
     * Find an enum value by its number.
     */
    findNumber(no: number): EnumValueInfo | undefined;
}
/**
 * Reflection information for a protobuf enumeration value.
 */
export interface EnumValueInfo {
    /**
     * The numeric enumeration value, as specified in the protobuf source.
     */
    readonly no: number;
    /**
     * The name of the enumeration value, as specified in the protobuf source.
     */
    readonly name: string;
    /**
     * The name of the enumeration value in generated code.
     */
    readonly localName: string;
}
/**
 * Create a new EnumType with the given values.
 */
export declare function createEnumType(typeName: string, values: (EnumValueInfo | Omit<EnumValueInfo, "localName">)[]): EnumType;
export declare function enumInfoZeroValue(values: (EnumValueInfo | Omit<EnumValueInfo, "localName">)[]): number;
export declare function enumDescZeroValue(info: DescEnum): number;
export declare function enumZeroValue<T extends EnumType>(info: T): number;
/**
 * Returns the normalized version of the enum value.
 * Null is cast to the default value.
 * String names are cast to the number enum.
 * If string and the value is unknown, throws an error.
 */
export declare function normalizeEnumValue(info: EnumType, value: string | number | null | undefined): number;