1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/vue/src/platforms/web/util/attrs.js b/node_modules/vue/src/platforms/web/util/attrs.js
new file mode 100644
index 00000000..59517da9
--- /dev/null
+++ b/node_modules/vue/src/platforms/web/util/attrs.js
@@ -0,0 +1,43 @@
+/* @flow */
+
+import { makeMap } from 'shared/util'
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+export const isReservedAttr = makeMap('style,class')
+
+// attributes that should be using props for binding
+const acceptValue = makeMap('input,textarea,option,select,progress')
+export const mustUseProp = (tag: string, type: ?string, attr: string): boolean => {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+}
+
+export const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck')
+
+export const isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+)
+
+export const xlinkNS = 'http://www.w3.org/1999/xlink'
+
+export const isXlink = (name: string): boolean => {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+}
+
+export const getXlinkProp = (name: string): string => {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+}
+
+export const isFalsyAttrValue = (val: any): boolean => {
+  return val == null || val === false
+}