1 | 'use strict';
|
2 | const getDocumentationUrl = require('./utils/get-documentation-url');
|
3 |
|
4 | const inferMethod = arguments_ => {
|
5 | if (arguments_.length > 0) {
|
6 | const [firstArgument] = arguments_;
|
7 | if (
|
8 | firstArgument.type === 'Literal' &&
|
9 | typeof firstArgument.value === 'number'
|
10 | ) {
|
11 | return 'alloc';
|
12 | }
|
13 | }
|
14 |
|
15 | return 'from';
|
16 | };
|
17 |
|
18 | const create = context => {
|
19 | return {
|
20 | 'NewExpression[callee.name="Buffer"]': node => {
|
21 | const method = inferMethod(node.arguments);
|
22 | const range = [
|
23 | node.range[0],
|
24 | node.callee.range[1]
|
25 | ];
|
26 |
|
27 | context.report({
|
28 | node,
|
29 | message: `\`new Buffer()\` is deprecated, use \`Buffer.${method}()\` instead.`,
|
30 | fix: fixer => fixer.replaceTextRange(range, `Buffer.${method}`)
|
31 | });
|
32 | }
|
33 | };
|
34 | };
|
35 |
|
36 | module.exports = {
|
37 | create,
|
38 | meta: {
|
39 | type: 'problem',
|
40 | docs: {
|
41 | url: getDocumentationUrl(__filename)
|
42 | },
|
43 | fixable: 'code'
|
44 | }
|
45 | };
|