@graphql-mesh/plugin-jit/esm/index.js

import { compileQuery, isCompiledQuery } from 'graphql-jit';
import { getDocumentString } from '@envelop/core';
import { createLruCache } from '@graphql-mesh/utils';
function createExecuteFnWithJit() {
    const compiledQueryByDocument = new WeakMap();
    const compiledQueryByDocumentStr = createLruCache();
    return function executeWithJit(args) {
        let compiledQuery = compiledQueryByDocument.get(args.document);
        if (compiledQuery == null) {
            const documentStr = getDocumentString(args.document);
            compiledQuery = compiledQueryByDocumentStr.get(documentStr);
            if (compiledQuery == null) {
                const compilationResult = compileQuery(args.schema, args.document, args.operationName, {
                    disableLeafSerialization: true,
                });
                if (isCompiledQuery(compilationResult)) {
                    compiledQuery = compilationResult;
                    compiledQueryByDocument.set(args.document, compiledQuery);
                    compiledQueryByDocumentStr.set(documentStr, compiledQuery);
                }
                else {
                    return compilationResult;
                }
            }
        }
        if (compiledQuery.subscribe) {
            return compiledQuery.subscribe(args.rootValue, args.contextValue, args.variableValues);
        }
        return compiledQuery.query(args.rootValue, args.contextValue, args.variableValues);
    };
}
export function useJIT() {
    const executeFnWithJit = createExecuteFnWithJit();
    return {
        onExecute({ setExecuteFn }) {
            setExecuteFn(executeFnWithJit);
        },
        onSubscribe({ setSubscribeFn }) {
            setSubscribeFn(executeFnWithJit);
        },
    };
}