chore: comments

Author: yyx990803

lib/plugin.js

@@ -46,7 +46,8 @@ module.exports = class VueLoaderPlugin {
     // replace the original vue rule with our new constructed rule.
     rawRules.splice(vueRuleIndex, 1, constructedRule)
 
-    // inject global pitcher (responsible for injecting CSS post loader)
+    // inject global pitcher (responsible for injecting template compiler
+    // loader & CSS post loader)
     rawRules.unshift({
       loader: require.resolve('./pitch')
     })

lib/style-post-loader/index.js

@@ -3,6 +3,9 @@ const postcss = require('postcss')
 const trim = require('./plugins/trim')
 const scoped = require('./plugins/scoped')
 
+// This is a post loader that handles scoped CSS transforms.
+// Injected right before css-loader by the global pitcher (../pitch.js)
+// for any <style scoped> selection requests initiated from within vue files.
 module.exports = function (source, map) {
   const cb = this.async()
 

lib/template-loader/index.js

@@ -8,6 +8,10 @@ const transformAssetUrl = require('./modules/assetUrl')
 const transformSrcset = require('./modules/srcset')
 const hotReloadAPIPath = require.resolve('vue-hot-reload-api')
 
+// Loader that compiles raw template into JavaScript functions.
+// This is injected by the global pitcher (../pitch) for template
+// selection requests initiated from vue files.
+// Also handles lang="xxx" pre-processing via consolidate if necessary.
 module.exports = function (template) {
   const loaderContext = this
   const query = qs.parse(this.resourceQuery.slice(1))