import { ParameterDefinition } from '../parameters/parameter-models';
/**
 * Service in the ParserModule that validates command metadata for the executed command
 */
export declare class ParametersValidator {
    /**
     * Creates a new instance
     */
    constructor();
    /**
     * Validates command metadata ensuring that:
     * - Indices are sequential starting at 1
     * - No names are duplicated
     * - Optional parameters always come after required
     * @param definitions Parameter metdata for the executed command
     * @param commandName name of the exuted command for throwing informative errors
     */
    validate(definitions: ParameterDefinition[], commandName: string): void;
    /**
     * Ensures that parameter indices are sequential, starting at 1
     * @param definitions Parameter metdata for the executed command
     * @param commandName name of the exuted command for throwing informative errors
     */
    private isSequential;
    /**
     * Ensures that all parameters have distinct names
     * @param definitions Parameter metdata for the executed command
     * @param commandName name of the exuted command for throwing informative errors
     */
    private disctintNames;
    /**
     * Ensures optional parameters are always after required
     * @param definitions Parameter metdata for the executed command
     * @param commandName name of the exuted command for throwing informative errors
     */
    private optionalsAfterRequired;
    /**
     * Ensures that an array parameter is the last parameter index
     * @param definitions Parameter metadata for the executed command
     * @param commandName name of the executed command for throwing informative errors
     */
    private nothingAfterArrays;
    /**
     * Utility function that returns a readable description of the parameter metadata for more informative errors
     * @param definitions Parameter metadata for the executed command
     */
    private printParameter;
}