forked from babel/babel
/
index.ts
58 lines (47 loc) 路 1.45 KB
/
index.ts
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
import { declare } from "@babel/helper-plugin-utils";
import type { ParserPlugin } from "@babel/parser";
function removePlugin(plugins: ParserPlugin[], name: string) {
const indices: number[] = [];
plugins.forEach((plugin, i) => {
const n = Array.isArray(plugin) ? plugin[0] : plugin;
if (n === name) {
indices.unshift(i);
}
});
for (const i of indices) {
plugins.splice(i, 1);
}
}
export interface Options {
disallowAmbiguousJSXLike?: boolean;
dts?: boolean;
isTSX?: boolean;
}
export default declare(
(api, { disallowAmbiguousJSXLike, dts, isTSX }: Options) => {
api.assertVersion(7);
return {
name: "syntax-typescript",
manipulateOptions(opts, parserOpts) {
const { plugins } = parserOpts;
// If the Flow syntax plugin already ran, remove it since Typescript
// takes priority.
removePlugin(plugins, "flow");
// If the JSX syntax plugin already ran, remove it because JSX handling
// in TS depends on the extensions, and is purely dependent on 'isTSX'.
removePlugin(plugins, "jsx");
plugins.push(
["typescript", { disallowAmbiguousJSXLike, dts }],
"classProperties",
);
if (!process.env.BABEL_8_BREAKING) {
// This is enabled by default since @babel/parser 7.1.5
plugins.push("objectRestSpread");
}
if (isTSX) {
plugins.push("jsx");
}
},
};
},
);