forked from OKEAMAH/prettier
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathespree.js
More file actions
59 lines (50 loc) · 1.41 KB
/
espree.js
File metadata and controls
59 lines (50 loc) · 1.41 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
import { parse as espreeParse } from "espree";
import createError from "../../common/parser-create-error.js";
import tryCombinations from "../../utils/try-combinations.js";
import postprocess from "./postprocess/index.js";
import createParser from "./utils/create-parser.js";
import getSourceType from "./utils/get-source-type.js";
/** @type {import("espree").Options} */
const parseOptions = {
ecmaVersion: "latest",
range: true,
loc: true,
comment: true,
tokens: true,
sourceType: "module",
ecmaFeatures: {
jsx: true,
globalReturn: true,
impliedStrict: false,
},
};
function createParseError(error) {
const { message, lineNumber, column } = error;
/* c8 ignore next 3 */
if (typeof lineNumber !== "number") {
return error;
}
return createError(message, {
loc: { start: { line: lineNumber, column } },
cause: error,
});
}
function parse(text, options = {}) {
const sourceType = getSourceType(options);
// prettier-ignore
const combinations = (
sourceType
? /** @type {const} */([sourceType])
: /** @type {const} */(["module", "script"])
).map(
(sourceType) => () => espreeParse(text, { ...parseOptions, sourceType })
);
let ast;
try {
ast = tryCombinations(combinations);
} catch (/** @type {any} */ { errors: [error] }) {
throw createParseError(error);
}
return postprocess(ast, { text });
}
export const espree = createParser(parse);