Mirror: The small sibling of the graphql package, slimmed down for client-side libraries.
kitten.sh
1import { getLocation } from 'graphql/language/location';
2import {
3 printLocation,
4 printSourceLocation,
5} from 'graphql/language/printLocation';
6
7export class GraphQLError extends Error {
8 constructor(
9 message,
10 nodes,
11 source,
12 positions,
13 path,
14 originalError,
15 extensions
16 ) {
17 super(message);
18
19 this.name = 'GraphQLError';
20 this.message = message;
21
22 if (path) this.path = path;
23 if (nodes) this.nodes = nodes;
24 if (source) this.source = source;
25 if (positions) this.positions = positions;
26 if (originalError) this.originalError = originalError;
27
28 let _extensions = extensions;
29 if (_extensions == null && originalError != null) {
30 const originalExtensions = originalError.extensions;
31 if (isObjectLike(originalExtensions)) {
32 _extensions = originalExtensions;
33 }
34 }
35
36 if (_extensions) {
37 this.extensions = _extensions;
38 }
39 }
40
41 toString() {
42 return printError(this);
43 }
44}
45
46/**
47 * Prints a GraphQLError to a string, representing useful location information
48 * about the error's position in the source.
49 */
50export function printError(error) {
51 let output = error.message;
52
53 if (error.nodes) {
54 for (const node of error.nodes) {
55 if (node.loc) {
56 output += '\n\n' + printLocation(node.loc);
57 }
58 }
59 } else if (error.source && error.locations) {
60 for (const location of error.locations) {
61 output += '\n\n' + printSourceLocation(error.source, location);
62 }
63 }
64
65 return output;
66}