2 files changed, 108 insertions, 0 deletions
diff --git a/node_modules/@vue/component-compiler-utils/lib/stylePlugins/scoped.ts b/node_modules/@vue/component-compiler-utils/lib/stylePlugins/scoped.ts
new file mode 100644
index 00000000..c0ce6c2a
--- /dev/null
+++ b/node_modules/@vue/component-compiler-utils/lib/stylePlugins/scoped.ts
@@ -0,0 +1,98 @@
+import { Root } from 'postcss'
+import * as postcss from 'postcss'
+// postcss-selector-parser does have typings but it's problematic to work with.
+const selectorParser = require('postcss-selector-parser')
+
+export default postcss.plugin('add-id', (options: any) => (root: Root) => {
+  const id: string = options
+  const keyframes = Object.create(null)
+
+  root.each(function rewriteSelector(node: any) {
+    if (!node.selector) {
+      // handle media queries
+      if (node.type === 'atrule') {
+        if (node.name === 'media' || node.name === 'supports') {
+          node.each(rewriteSelector)
+        } else if (/-?keyframes$/.test(node.name)) {
+          // register keyframes
+          keyframes[node.params] = node.params = node.params + '-' + id
+        }
+      }
+      return
+    }
+    node.selector = selectorParser((selectors: any) => {
+      selectors.each((selector: any) => {
+        let node: any = null
+
+        selector.each((n: any) => {
+          // ">>>" combinator
+          if (n.type === 'combinator' && n.value === '>>>') {
+            n.value = ' '
+            n.spaces.before = n.spaces.after = ''
+            return false
+          }
+          // /deep/ alias for >>>, since >>> doesn't work in SASS
+          if (n.type === 'tag' && n.value === '/deep/') {
+            const prev = n.prev()
+            if (prev && prev.type === 'combinator' && prev.value === ' ') {
+              prev.remove()
+            }
+            n.remove()
+            return false
+          }
+          if (n.type !== 'pseudo' && n.type !== 'combinator') {
+            node = n
+          }
+        })
+
+        if (node) {
+          node.spaces.after = ''
+        } else {
+          // For deep selectors & standalone pseudo selectors,
+          // the attribute selectors are prepended rather than appended.
+          // So all leading spaces must be eliminated to avoid problems.
+          selector.first.spaces.before = ''
+        }
+
+        selector.insertAfter(
+          node,
+          selectorParser.attribute({
+            attribute: id
+          })
+        )
+      })
+    }).processSync(node.selector)
+  })
+
+  // If keyframes are found in this <style>, find and rewrite animation names
+  // in declarations.
+  // Caveat: this only works for keyframes and animation rules in the same
+  // <style> element.
+  if (Object.keys(keyframes).length) {
+    root.walkDecls(decl => {
+      // individual animation-name declaration
+      if (/^(-\w+-)?animation-name$/.test(decl.prop)) {
+        decl.value = decl.value
+          .split(',')
+          .map(v => keyframes[v.trim()] || v.trim())
+          .join(',')
+      }
+      // shorthand
+      if (/^(-\w+-)?animation$/.test(decl.prop)) {
+        decl.value = decl.value
+          .split(',')
+          .map(v => {
+            const vals = v.trim().split(/\s+/)
+            const i = vals.findIndex(val => keyframes[val])
+            if (i !== -1) {
+              vals.splice(i, 1, keyframes[vals[i]])
+              return vals.join(' ')
+            } else {
+              return v
+            }
+          })
+          .join(',')
+      }
+    })
+  }
+})
diff --git a/node_modules/@vue/component-compiler-utils/lib/stylePlugins/trim.ts b/node_modules/@vue/component-compiler-utils/lib/stylePlugins/trim.ts
new file mode 100644
index 00000000..a7e9a0db
--- /dev/null
+++ b/node_modules/@vue/component-compiler-utils/lib/stylePlugins/trim.ts
@@ -0,0 +1,10 @@
+import { Root } from 'postcss'
+import * as postcss from 'postcss'
+
+export default postcss.plugin('trim', () => (css: Root) => {
+  css.walk(({ type, raws }) => {
+    if (type === 'rule' || type === 'atrule') {
+      raws.before = raws.after = '\n'
+    }
+  })
+})