graphql-paper/es/validations/validators/non-null-field.mjs

A flexible in-memory store based on a GraphQL Schema

import { isNonNullType } from 'graphql';
import { key } from '../../document/null-document.mjs';
import { FieldReturnTypeMismatch } from '../errors/field-return-type-mismatch.mjs';
var nonNullFieldValidator = {
  skipConnectionValue: false,
  skipNullValue: false,
  validate(_ref) {
    var {
      field,
      fieldValue,
      fieldConnections: connections
    } = _ref;
    if (isNonNullType(field.type)) {
      var hasConnectedNullDocument = (connections === null || connections === void 0 ? void 0 : connections.length) === 1 && (connections === null || connections === void 0 ? void 0 : connections.includes(key));
      var actual = hasConnectedNullDocument ? 'null document' : fieldValue === undefined ? 'undefined' : 'null';
      if (fieldValue == null && (hasConnectedNullDocument || !connections)) {
        throw new FieldReturnTypeMismatch({
          field: field,
          expected: 'non-null',
          actual
        });
      }
    }
  }
};
export { nonNullFieldValidator };
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