-
-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
HTMLTransformer.js
39 lines (34 loc) 路 945 Bytes
/
HTMLTransformer.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
// @flow
import {Transformer} from '@parcel/plugin';
import parse from 'posthtml-parser';
import nullthrows from 'nullthrows';
import render from 'posthtml-render';
import semver from 'semver';
import collectDependencies from './dependencies';
import extractInlineAssets from './inline';
export default (new Transformer({
canReuseAST({ast}) {
return ast.type === 'posthtml' && semver.satisfies(ast.version, '^0.4.0');
},
async parse({asset}) {
return {
type: 'posthtml',
version: '0.4.1',
program: parse(await asset.getCode(), {
lowerCaseAttributeNames: true,
}),
};
},
async transform({asset}) {
// Handle .htm
asset.type = 'html';
let ast = nullthrows(await asset.getAST());
collectDependencies(asset, ast);
return [asset, ...extractInlineAssets(asset, ast)];
},
generate({ast}) {
return {
content: render(ast.program),
};
},
}): Transformer);