1 files changed, 62 insertions, 0 deletions
diff --git a/node_modules/vue/src/platforms/web/server/modules/attrs.js b/node_modules/vue/src/platforms/web/server/modules/attrs.js
new file mode 100644
index 00000000..c3f73013
--- /dev/null
+++ b/node_modules/vue/src/platforms/web/server/modules/attrs.js
@@ -0,0 +1,62 @@
+/* @flow */
+
+import { escape } from '../util'
+
+import {
+  isDef,
+  isUndef,
+  extend
+} from 'shared/util'
+
+import {
+  isBooleanAttr,
+  isEnumeratedAttr,
+  isFalsyAttrValue
+} from 'web/util/attrs'
+
+import { isSSRUnsafeAttr } from 'web/server/util'
+
+export default function renderAttrs (node: VNodeWithData): string {
+  let attrs = node.data.attrs
+  let res = ''
+
+  const opts = node.parent && node.parent.componentOptions
+  if (isUndef(opts) || opts.Ctor.options.inheritAttrs !== false) {
+    let parent = node.parent
+    while (isDef(parent)) {
+      if (isDef(parent.data) && isDef(parent.data.attrs)) {
+        attrs = extend(extend({}, attrs), parent.data.attrs)
+      }
+      parent = parent.parent
+    }
+  }
+
+  if (isUndef(attrs)) {
+    return res
+  }
+
+  for (const key in attrs) {
+    if (isSSRUnsafeAttr(key)) {
+      continue
+    }
+    if (key === 'style') {
+      // leave it to the style module
+      continue
+    }
+    res += renderAttr(key, attrs[key])
+  }
+  return res
+}
+
+export function renderAttr (key: string, value: string): string {
+  if (isBooleanAttr(key)) {
+    if (!isFalsyAttrValue(value)) {
+      return ` ${key}="${key}"`
+    }
+  } else if (isEnumeratedAttr(key)) {
+    return ` ${key}="${isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'}"`
+  } else if (!isFalsyAttrValue(value)) {
+    return ` ${key}="${escape(String(value))}"`
+  }
+  return ''
+}