import { DocumentNode } from 'graphql';
import { Model, ValidationMessage, ValidationResult } from '../../model';
import { ProjectSource } from '../../project/source';
import { ParsedProjectSource } from '../../config/parsed-project';
export interface ASTValidator {
    validate(ast: DocumentNode, model: Model): ReadonlyArray<ValidationMessage>;
}
export interface ParsedSourceValidator {
    validate(source: ParsedProjectSource): ReadonlyArray<ValidationMessage>;
}
export interface SourceValidator {
    validate(source: ProjectSource): ReadonlyArray<ValidationMessage>;
}
export declare function validateSource(source: ProjectSource): ValidationResult;
export declare function validateParsedProjectSource(source: ParsedProjectSource): ValidationResult;
export declare function validatePostMerge(ast: DocumentNode, model: Model): ValidationResult;