aaac7fed
 liuqimichale
add
|
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
|
const compiler = require('vue-template-compiler')
const cache = require('lru-cache')(100)
const hash = require('hash-sum')
const SourceMapGenerator = require('source-map').SourceMapGenerator
const splitRE = /\r?\n/g
const emptyRE = /^(?:\/\/)?\s*$/
module.exports = (content, filename, needMap, sourceRoot, needCSSMap) => {
const cacheKey = hash((filename + content).replace(/\\/g, '/'))
let output = cache.get(cacheKey)
if (output) return output
output = compiler.parseComponent(content, { pad: 'line' })
if (needMap) {
if (output.script && !output.script.src) {
output.script.map = generateSourceMap(
filename,
content,
output.script.content,
sourceRoot
)
}
if (needCSSMap && output.styles) {
output.styles.forEach(style => {
if (!style.src) {
style.map = generateSourceMap(
filename,
content,
style.content,
sourceRoot
)
}
})
}
}
cache.set(cacheKey, output)
return output
}
function generateSourceMap (filename, source, generated, sourceRoot) {
const map = new SourceMapGenerator({ sourceRoot })
map.setSourceContent(filename, source)
generated.split(splitRE).forEach((line, index) => {
if (!emptyRE.test(line)) {
map.addMapping({
source: filename,
original: {
line: index + 1,
column: 0
},
generated: {
line: index + 1,
column: 0
}
})
}
})
return map.toJSON()
}
|
