bc518174
 王天杨
提交两个项目文件
|
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
60
61
62
63
64
|
import { transformExpressionWithStyles, createTransformerMacro } from './utils'
const isAlreadyTranspiled = path => {
if (!path.isCallExpression()) {
return false
}
const firstArgPath = path.get('arguments.0')
if (!firstArgPath) {
return false
}
if (!firstArgPath.isConditionalExpression()) {
return false
}
const alternatePath = firstArgPath.get('alternate')
if (!alternatePath.isObjectExpression()) {
return false
}
const properties = new Set(
alternatePath.get('properties').map(p => p.node.key.name)
)
return ['name', 'styles'].every(p => properties.has(p))
}
let createEmotionTransformer =
(isPure /*: boolean */) =>
(
{ state, babel, importSource, reference, importSpecifierName } /*: Object */
) => {
const path = reference.parentPath
if (isAlreadyTranspiled(path)) {
return
}
if (isPure) {
path.addComment('leading', '#__PURE__')
}
let node = transformExpressionWithStyles({
babel,
state,
path,
shouldLabel: true
})
if (node) {
path.node.arguments[0] = node
}
}
export let transformers = {
css: createEmotionTransformer(true),
injectGlobal: createEmotionTransformer(false),
keyframes: createEmotionTransformer(true)
}
export let createEmotionMacro = (importSource /*: string */) =>
createTransformerMacro(transformers, { importSource })
|
