build: build 2.6.7

dist/vue.common.dev.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1821,23 +1821,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1851,7 +1858,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2534,40 +2543,44 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
   // and when that is passed down this would cause an error
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2862,14 +2875,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2878,6 +2893,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4055,9 +4073,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5379,7 +5400,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -7558,15 +7579,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -7586,8 +7599,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
@@ -11167,22 +11190,49 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  var needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     var parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+  var generatedSlots = Object.keys(slots)
+    .map(function (key) { return genScopedSlot(slots[key], state); })
+    .join(',');
+
+  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+}
+
+function hash(str) {
+  var hash = 5381;
+  var i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -11517,11 +11567,13 @@ function generateCodeFrame (
 
 function repeat$1 (str, n) {
   var result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) { result += str; }
-    n >>>= 1;
-    if (n <= 0) { break }
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
   }
   return result
 }