import { GraphQLField } from "graphql";
import * as ts from "typescript";
import { ResolverArgument, ResolverDefinition, Metadata } from "../metadata.js";
import TSAstBuilder from "./TSAstBuilder.js";
import { ExportDefinition } from "../GraphQLAstExtensions.js";
/**
 * Codegen specifically for generating resolver methods for a given field.
 * Having this separate from the other codegen classes allows it to be used
 * for any codegen that needs to generate resolver methods.
 */
export default class ResolverCodegen {
    ts: TSAstBuilder;
    _resolvers: Metadata;
    _helpers: Set<string>;
    _derivedContextNames: Map<string, string>;
    constructor(ts: TSAstBuilder, _resolvers: Metadata);
    resolveMethod(fieldName: string, methodName: string, parentTypeName: string, sourceExport: ExportDefinition | null): ts.MethodDeclaration | null;
    isDefaultResolverSignature(fieldName: string, signature: ResolverDefinition): boolean;
    resolverParam(arg: ResolverArgument): ts.Expression;
    getDerivedContextName(path: string, exportName: string | null): string;
    maybeApplySemanticNullRuntimeCheck(field: GraphQLField<unknown, unknown>, method_: ts.MethodDeclaration | null, methodName: string): ts.MethodDeclaration | null;
    defaultResolverMethod(methodName: string): ts.MethodDeclaration;
}