-
-
Notifications
You must be signed in to change notification settings - Fork 5.6k
/
index.js
49 lines (39 loc) 路 1.22 KB
/
index.js
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
import { declare } from "@babel/helper-plugin-utils";
function removePlugin(plugins, name) {
const indices = [];
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 default declare((api, { isTSX, disallowJSXAmbiguity }) => {
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");
parserOpts.plugins.push(
["typescript", { disallowJSXAmbiguity }],
"classProperties",
);
if (!process.env.BABEL_8_BREAKING) {
// This is enabled by default since @babel/parser 7.1.5
parserOpts.plugins.push("objectRestSpread");
}
if (isTSX) {
parserOpts.plugins.push("jsx");
}
},
};
});