@graphql-mesh/runtime/esm/utils.js

import { BREAK, getNamedType, visit } from 'graphql';
import { MapperKind, mapSchema, memoize1 } from '@graphql-tools/utils';
export const isStreamOperation = memoize1(function isStreamOperation(astNode) {
    let isStream = false;
    visit(astNode, {
        Field: {
            enter(node) {
                if (node.directives?.some(d => d.name.value === 'stream')) {
                    isStream = true;
                    return BREAK;
                }
                return undefined;
            },
        },
    });
    return isStream;
});
export const isGraphQLJitCompatible = memoize1(function isGraphQLJitCompatible(schema) {
    let compatibleSchema = true;
    mapSchema(schema, {
        [MapperKind.INPUT_OBJECT_TYPE]: type => {
            const fieldMap = type.getFields();
            for (const fieldName in fieldMap) {
                const fieldObj = fieldMap[fieldName];
                const namedType = getNamedType(fieldObj.type);
                if (namedType.name === type.name) {
                    compatibleSchema = false;
                    return undefined;
                }
            }
            return undefined;
        },
    });
    if (compatibleSchema) {
        try {
            // eslint-disable-next-line no-new-func
            const a = new Function('return true');
            return a();
        }
        catch (e) {
            return false;
        }
    }
    return false;
});