build: build 2.6.11

dist/vue.common.dev.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1965,7 +1965,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
   isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
-  // Techinically it leverages the (macro) task queue,
+  // Technically it leverages the (macro) task queue,
   // but it is still a better choice than setTimeout.
   timerFunc = function () {
     setImmediate(flushCallbacks);
@@ -2054,7 +2054,7 @@ var initProxy;
     warn(
       "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
       'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
+      'prevent conflicts with Vue internals. ' +
       'See: https://vuejs.org/v2/api/#data',
       target
     );
@@ -2914,7 +2914,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         ("Invalid value for dynamic directive argument (expected string or null): " + key),
         this
@@ -3409,6 +3409,12 @@ function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+          context
+        );
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
@@ -3534,7 +3540,7 @@ function renderMixin (Vue) {
     // render self
     var vnode;
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm;
@@ -5433,7 +5439,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.10';
+Vue.version = '2.6.11';
 
 /*  */
 
@@ -6106,7 +6112,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       var ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -6217,7 +6223,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -6309,7 +6315,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6538,7 +6544,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -9244,7 +9250,7 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
@@ -9529,7 +9535,7 @@ function parseHTML (html, options) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^#/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -10153,7 +10159,7 @@ function processSlotContent (el) {
           if (el.parent && !maybeComponent(el.parent)) {
             warn$2(
               "<template v-slot> can only appear at the root level inside " +
-              "the receiving the component",
+              "the receiving component",
               el
             );
           }
@@ -10716,7 +10722,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -11485,6 +11491,8 @@ function checkNode (node, warn) {
           var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
             checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
             checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
@@ -11504,9 +11512,9 @@ function checkNode (node, warn) {
 }
 
 function checkEvent (exp, text, warn, range) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+  var stripped = exp.replace(stripStringRE, '');
+  var keywordMatch = stripped.match(unaryOperatorsRE);
+  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
     warn(
       "avoid using JavaScript unary operator as property name: " +
       "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -11561,6 +11569,19 @@ function checkExpression (exp, text, warn, range) {
   }
 }
 
+function checkFunctionParameterExpression (exp, text, warn, range) {
+  try {
+    new Function(exp, '');
+  } catch (e) {
+    warn(
+      "invalid function parameter expression: " + (e.message) + " in\n\n" +
+      "    " + exp + "\n\n" +
+      "  Raw expression: " + (text.trim()) + "\n",
+      range
+    );
+  }
+}
+
 /*  */
 
 var range = 2;

dist/vue.esm.browser.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1996,7 +1996,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
   isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
-  // Techinically it leverages the (macro) task queue,
+  // Technically it leverages the (macro) task queue,
   // but it is still a better choice than setTimeout.
   timerFunc = () => {
     setImmediate(flushCallbacks);
@@ -2085,7 +2085,7 @@ let initProxy;
     warn(
       `Property "${key}" must be accessed with "$data.${key}" because ` +
       'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
+      'prevent conflicts with Vue internals. ' +
       'See: https://vuejs.org/v2/api/#data',
       target
     );
@@ -2940,7 +2940,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         `Invalid value for dynamic directive argument (expected string or null): ${key}`,
         this
@@ -3432,6 +3432,12 @@ function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          `The .native modifier for v-on is only valid on components but it was used on <${tag}>.`,
+          context
+        );
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
@@ -3555,7 +3561,7 @@ function renderMixin (Vue) {
     // render self
     let vnode;
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm;
@@ -5464,7 +5470,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.10';
+Vue.version = '2.6.11';
 
 /*  */
 
@@ -6136,7 +6142,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       const ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -6247,7 +6253,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -6339,7 +6345,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6566,7 +6572,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -9261,7 +9267,7 @@ const startTagOpen = new RegExp(`^<${qnameCapture}`);
 const startTagClose = /^\s*(\/?)>/;
 const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
 const doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 const comment = /^<!\--/;
 const conditionalComment = /^<!\[/;
 
@@ -9546,7 +9552,7 @@ function parseHTML (html, options) {
 /*  */
 
 const onRE = /^@|^v-on:/;
-const dirRE = /^v-|^@|^:/;
+const dirRE = /^v-|^@|^:|^#/;
 const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 const stripParensRE = /^\(|\)$/g;
@@ -10170,7 +10176,7 @@ function processSlotContent (el) {
           if (el.parent && !maybeComponent(el.parent)) {
             warn$2(
               `<template v-slot> can only appear at the root level inside ` +
-              `the receiving the component`,
+              `the receiving component`,
               el
             );
           }
@@ -10729,7 +10735,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
 const fnInvokeRE = /\([^)]*?\);*$/;
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -11554,6 +11560,8 @@ function checkNode (node, warn) {
           const range = node.rawAttrsMap[name];
           if (name === 'v-for') {
             checkFor(node, `v-for="${value}"`, warn, range);
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, `${name}="${value}"`, warn, range);
           } else if (onRE.test(name)) {
             checkEvent(value, `${name}="${value}"`, warn, range);
           } else {
@@ -11573,9 +11581,9 @@ function checkNode (node, warn) {
 }
 
 function checkEvent (exp, text, warn, range) {
-  const stipped = exp.replace(stripStringRE, '');
-  const keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+  const stripped = exp.replace(stripStringRE, '');
+  const keywordMatch = stripped.match(unaryOperatorsRE);
+  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
     warn(
       `avoid using JavaScript unary operator as property name: ` +
       `"${keywordMatch[0]}" in expression ${text.trim()}`,
@@ -11630,6 +11638,19 @@ function checkExpression (exp, text, warn, range) {
   }
 }
 
+function checkFunctionParameterExpression (exp, text, warn, range) {
+  try {
+    new Function(exp, '');
+  } catch (e) {
+    warn(
+      `invalid function parameter expression: ${e.message} in\n\n` +
+      `    ${exp}\n\n` +
+      `  Raw expression: ${text.trim()}\n`,
+      range
+    );
+  }
+}
+
 /*  */
 
 const range = 2;

dist/vue.esm.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1969,7 +1969,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
   isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
-  // Techinically it leverages the (macro) task queue,
+  // Technically it leverages the (macro) task queue,
   // but it is still a better choice than setTimeout.
   timerFunc = function () {
     setImmediate(flushCallbacks);
@@ -2058,7 +2058,7 @@ if (process.env.NODE_ENV !== 'production') {
     warn(
       "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
       'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
+      'prevent conflicts with Vue internals. ' +
       'See: https://vuejs.org/v2/api/#data',
       target
     );
@@ -2920,7 +2920,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         ("Invalid value for dynamic directive argument (expected string or null): " + key),
         this
@@ -3416,6 +3416,12 @@ function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+          context
+        );
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
@@ -3544,7 +3550,7 @@ function renderMixin (Vue) {
     // render self
     var vnode;
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm;
@@ -5453,7 +5459,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.10';
+Vue.version = '2.6.11';
 
 /*  */
 
@@ -6126,7 +6132,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       var ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -6237,7 +6243,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -6329,7 +6335,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6560,7 +6566,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -9272,7 +9278,7 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
@@ -9558,7 +9564,7 @@ function parseHTML (html, options) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^#/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -10182,7 +10188,7 @@ function processSlotContent (el) {
           if (el.parent && !maybeComponent(el.parent)) {
             warn$2(
               "<template v-slot> can only appear at the root level inside " +
-              "the receiving the component",
+              "the receiving component",
               el
             );
           }
@@ -10747,7 +10753,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -11519,6 +11525,8 @@ function checkNode (node, warn) {
           var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
             checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
             checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
@@ -11538,9 +11546,9 @@ function checkNode (node, warn) {
 }
 
 function checkEvent (exp, text, warn, range) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+  var stripped = exp.replace(stripStringRE, '');
+  var keywordMatch = stripped.match(unaryOperatorsRE);
+  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
     warn(
       "avoid using JavaScript unary operator as property name: " +
       "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -11595,6 +11603,19 @@ function checkExpression (exp, text, warn, range) {
   }
 }
 
+function checkFunctionParameterExpression (exp, text, warn, range) {
+  try {
+    new Function(exp, '');
+  } catch (e) {
+    warn(
+      "invalid function parameter expression: " + (e.message) + " in\n\n" +
+      "    " + exp + "\n\n" +
+      "  Raw expression: " + (text.trim()) + "\n",
+      range
+    );
+  }
+}
+
 /*  */
 
 var range = 2;

dist/vue.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1969,7 +1969,7 @@
     isUsingMicroTask = true;
   } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     // Fallback to setImmediate.
-    // Techinically it leverages the (macro) task queue,
+    // Technically it leverages the (macro) task queue,
     // but it is still a better choice than setTimeout.
     timerFunc = function () {
       setImmediate(flushCallbacks);
@@ -2058,7 +2058,7 @@
       warn(
         "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
         'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-        'prevent conflicts with Vue internals' +
+        'prevent conflicts with Vue internals. ' +
         'See: https://vuejs.org/v2/api/#data',
         target
       );
@@ -2918,7 +2918,7 @@
       if (typeof key === 'string' && key) {
         baseObj[values[i]] = values[i + 1];
       } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
+        // null is a special value for explicitly removing a binding
         warn(
           ("Invalid value for dynamic directive argument (expected string or null): " + key),
           this
@@ -3413,6 +3413,12 @@
       ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
       if (config.isReservedTag(tag)) {
         // platform built-in elements
+        if (isDef(data) && isDef(data.nativeOn)) {
+          warn(
+            ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+            context
+          );
+        }
         vnode = new VNode(
           config.parsePlatformTagName(tag), data, children,
           undefined, undefined, context
@@ -3538,7 +3544,7 @@
       // render self
       var vnode;
       try {
-        // There's no need to maintain a stack becaues all render fns are called
+        // There's no need to maintain a stack because all render fns are called
         // separately from one another. Nested component's render fns are called
         // when parent component is patched.
         currentRenderingInstance = vm;
@@ -5437,7 +5443,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.10';
+  Vue.version = '2.6.11';
 
   /*  */
 
@@ -6110,7 +6116,7 @@
       }
     }
 
-    function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    function removeVnodes (vnodes, startIdx, endIdx) {
       for (; startIdx <= endIdx; ++startIdx) {
         var ch = vnodes[startIdx];
         if (isDef(ch)) {
@@ -6221,7 +6227,7 @@
         refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
         addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
       } else if (newStartIdx > newEndIdx) {
-        removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+        removeVnodes(oldCh, oldStartIdx, oldEndIdx);
       }
     }
 
@@ -6313,7 +6319,7 @@
           if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
           addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
         } else if (isDef(oldCh)) {
-          removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+          removeVnodes(oldCh, 0, oldCh.length - 1);
         } else if (isDef(oldVnode.text)) {
           nodeOps.setTextContent(elm, '');
         }
@@ -6542,7 +6548,7 @@
 
           // destroy old node
           if (isDef(parentElm)) {
-            removeVnodes(parentElm, [oldVnode], 0, 0);
+            removeVnodes([oldVnode], 0, 0);
           } else if (isDef(oldVnode.tag)) {
             invokeDestroyHook(oldVnode);
           }
@@ -9248,7 +9254,7 @@
   var startTagClose = /^\s*(\/?)>/;
   var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
   var doctype = /^<!DOCTYPE [^>]+>/i;
-  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  // #7298: escape - to avoid being passed as HTML comment when inlined in page
   var comment = /^<!\--/;
   var conditionalComment = /^<!\[/;
 
@@ -9533,7 +9539,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^#/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -10157,7 +10163,7 @@
             if (el.parent && !maybeComponent(el.parent)) {
               warn$2(
                 "<template v-slot> can only appear at the root level inside " +
-                "the receiving the component",
+                "the receiving component",
                 el
               );
             }
@@ -10720,7 +10726,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -11489,6 +11495,8 @@
             var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
               checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+            } else if (name === 'v-slot' || name[0] === '#') {
+              checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
               checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
@@ -11508,9 +11516,9 @@
   }
 
   function checkEvent (exp, text, warn, range) {
-    var stipped = exp.replace(stripStringRE, '');
-    var keywordMatch = stipped.match(unaryOperatorsRE);
-    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    var stripped = exp.replace(stripStringRE, '');
+    var keywordMatch = stripped.match(unaryOperatorsRE);
+    if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
       warn(
         "avoid using JavaScript unary operator as property name: " +
         "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -11565,6 +11573,19 @@
     }
   }
 
+  function checkFunctionParameterExpression (exp, text, warn, range) {
+    try {
+      new Function(exp, '');
+    } catch (e) {
+      warn(
+        "invalid function parameter expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
+      );
+    }
+  }
+
   /*  */
 
   var range = 2;

dist/vue.runtime.common.dev.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1956,7 +1956,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
   isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
-  // Techinically it leverages the (macro) task queue,
+  // Technically it leverages the (macro) task queue,
   // but it is still a better choice than setTimeout.
   timerFunc = function () {
     setImmediate(flushCallbacks);
@@ -2022,7 +2022,7 @@ var initProxy;
     warn(
       "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
       'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
+      'prevent conflicts with Vue internals. ' +
       'See: https://vuejs.org/v2/api/#data',
       target
     );
@@ -2905,7 +2905,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         ("Invalid value for dynamic directive argument (expected string or null): " + key),
         this
@@ -3400,6 +3400,12 @@ function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+          context
+        );
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
@@ -3525,7 +3531,7 @@ function renderMixin (Vue) {
     // render self
     var vnode;
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm;
@@ -5424,7 +5430,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.10';
+Vue.version = '2.6.11';
 
 /*  */
 
@@ -6095,7 +6101,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       var ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -6206,7 +6212,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -6298,7 +6304,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6527,7 +6533,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }

dist/vue.runtime.esm.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1960,7 +1960,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
   isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
-  // Techinically it leverages the (macro) task queue,
+  // Technically it leverages the (macro) task queue,
   // but it is still a better choice than setTimeout.
   timerFunc = function () {
     setImmediate(flushCallbacks);
@@ -2026,7 +2026,7 @@ if (process.env.NODE_ENV !== 'production') {
     warn(
       "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
       'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
+      'prevent conflicts with Vue internals. ' +
       'See: https://vuejs.org/v2/api/#data',
       target
     );
@@ -2911,7 +2911,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         ("Invalid value for dynamic directive argument (expected string or null): " + key),
         this
@@ -3407,6 +3407,12 @@ function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+          context
+        );
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
@@ -3535,7 +3541,7 @@ function renderMixin (Vue) {
     // render self
     var vnode;
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm;
@@ -5444,7 +5450,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.10';
+Vue.version = '2.6.11';
 
 /*  */
 
@@ -6115,7 +6121,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       var ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -6226,7 +6232,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -6318,7 +6324,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6549,7 +6555,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }

dist/vue.runtime.js

@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.10
+ * Vue.js v2.6.11
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1960,7 +1960,7 @@
     isUsingMicroTask = true;
   } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     // Fallback to setImmediate.
-    // Techinically it leverages the (macro) task queue,
+    // Technically it leverages the (macro) task queue,
     // but it is still a better choice than setTimeout.
     timerFunc = function () {
       setImmediate(flushCallbacks);
@@ -2026,7 +2026,7 @@
       warn(
         "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
         'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-        'prevent conflicts with Vue internals' +
+        'prevent conflicts with Vue internals. ' +
         'See: https://vuejs.org/v2/api/#data',
         target
       );
@@ -2909,7 +2909,7 @@
       if (typeof key === 'string' && key) {
         baseObj[values[i]] = values[i + 1];
       } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
+        // null is a special value for explicitly removing a binding
         warn(
           ("Invalid value for dynamic directive argument (expected string or null): " + key),
           this
@@ -3404,6 +3404,12 @@
       ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
       if (config.isReservedTag(tag)) {
         // platform built-in elements
+        if (isDef(data) && isDef(data.nativeOn)) {
+          warn(
+            ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
+            context
+          );
+        }
         vnode = new VNode(
           config.parsePlatformTagName(tag), data, children,
           undefined, undefined, context
@@ -3529,7 +3535,7 @@
       // render self
       var vnode;
       try {
-        // There's no need to maintain a stack becaues all render fns are called
+        // There's no need to maintain a stack because all render fns are called
         // separately from one another. Nested component's render fns are called
         // when parent component is patched.
         currentRenderingInstance = vm;
@@ -5428,7 +5434,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.10';
+  Vue.version = '2.6.11';
 
   /*  */
 
@@ -6099,7 +6105,7 @@
       }
     }
 
-    function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    function removeVnodes (vnodes, startIdx, endIdx) {
       for (; startIdx <= endIdx; ++startIdx) {
         var ch = vnodes[startIdx];
         if (isDef(ch)) {
@@ -6210,7 +6216,7 @@
         refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
         addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
       } else if (newStartIdx > newEndIdx) {
-        removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+        removeVnodes(oldCh, oldStartIdx, oldEndIdx);
       }
     }
 
@@ -6302,7 +6308,7 @@
           if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
           addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
         } else if (isDef(oldCh)) {
-          removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+          removeVnodes(oldCh, 0, oldCh.length - 1);
         } else if (isDef(oldVnode.text)) {
           nodeOps.setTextContent(elm, '');
         }
@@ -6531,7 +6537,7 @@
 
           // destroy old node
           if (isDef(parentElm)) {
-            removeVnodes(parentElm, [oldVnode], 0, 0);
+            removeVnodes([oldVnode], 0, 0);
           } else if (isDef(oldVnode.tag)) {
             invokeDestroyHook(oldVnode);
           }

packages/vue-server-renderer/basic.js

@@ -3373,7 +3373,7 @@
   var startTagClose = /^\s*(\/?)>/;
   var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
   var doctype = /^<!DOCTYPE [^>]+>/i;
-  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  // #7298: escape - to avoid being passed as HTML comment when inlined in page
   var comment = /^<!\--/;
   var conditionalComment = /^<!\[/;
 
@@ -3806,7 +3806,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^#/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -4430,7 +4430,7 @@
             if (el.parent && !maybeComponent(el.parent)) {
               warn$1(
                 "<template v-slot> can only appear at the root level inside " +
-                "the receiving the component",
+                "the receiving component",
                 el
               );
             }
@@ -5032,7 +5032,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -6272,6 +6272,8 @@
             var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
               checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+            } else if (name === 'v-slot' || name[0] === '#') {
+              checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
               checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
@@ -6291,9 +6293,9 @@
   }
 
   function checkEvent (exp, text, warn, range) {
-    var stipped = exp.replace(stripStringRE, '');
-    var keywordMatch = stipped.match(unaryOperatorsRE);
-    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    var stripped = exp.replace(stripStringRE, '');
+    var keywordMatch = stripped.match(unaryOperatorsRE);
+    if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
       warn(
         "avoid using JavaScript unary operator as property name: " +
         "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -6348,6 +6350,19 @@
     }
   }
 
+  function checkFunctionParameterExpression (exp, text, warn, range) {
+    try {
+      new Function(exp, '');
+    } catch (e) {
+      warn(
+        "invalid function parameter expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
+      );
+    }
+  }
+
   /*  */
 
   var range = 2;
@@ -7473,7 +7488,7 @@
       if (typeof key === 'string' && key) {
         baseObj[values[i]] = values[i + 1];
       } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
+        // null is a special value for explicitly removing a binding
         warn(
           ("Invalid value for dynamic directive argument (expected string or null): " + key),
           this

packages/vue-server-renderer/build.dev.js

@@ -3123,7 +3123,7 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
@@ -3556,7 +3556,7 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^#/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -4180,7 +4180,7 @@ function processSlotContent (el) {
           if (el.parent && !maybeComponent(el.parent)) {
             warn$1(
               "<template v-slot> can only appear at the root level inside " +
-              "the receiving the component",
+              "the receiving component",
               el
             );
           }
@@ -4782,7 +4782,7 @@ var baseOptions = {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -6022,6 +6022,8 @@ function checkNode (node, warn) {
           var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
             checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
             checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
@@ -6041,9 +6043,9 @@ function checkNode (node, warn) {
 }
 
 function checkEvent (exp, text, warn, range) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+  var stripped = exp.replace(stripStringRE, '');
+  var keywordMatch = stripped.match(unaryOperatorsRE);
+  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
     warn(
       "avoid using JavaScript unary operator as property name: " +
       "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -6098,6 +6100,19 @@ function checkExpression (exp, text, warn, range) {
   }
 }
 
+function checkFunctionParameterExpression (exp, text, warn, range) {
+  try {
+    new Function(exp, '');
+  } catch (e) {
+    warn(
+      "invalid function parameter expression: " + (e.message) + " in\n\n" +
+      "    " + exp + "\n\n" +
+      "  Raw expression: " + (text.trim()) + "\n",
+      range
+    );
+  }
+}
+
 /*  */
 
 var range = 2;
@@ -7223,7 +7238,7 @@ function bindDynamicKeys (baseObj, values) {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1];
     } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         ("Invalid value for dynamic directive argument (expected string or null): " + key),
         this

packages/vue-server-renderer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.10",
+  "version": "2.6.11",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",

packages/vue-template-compiler/browser.js

@@ -310,7 +310,7 @@
   var startTagClose = /^\s*(\/?)>/;
   var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
   var doctype = /^<!DOCTYPE [^>]+>/i;
-  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  // #7298: escape - to avoid being passed as HTML comment when inlined in page
   var comment = /^<!\--/;
   var conditionalComment = /^<!\[/;
 
@@ -2729,7 +2729,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^#/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -3353,7 +3353,7 @@
             if (el.parent && !maybeComponent(el.parent)) {
               warn$1(
                 "<template v-slot> can only appear at the root level inside " +
-                "the receiving the component",
+                "the receiving component",
                 el
               );
             }
@@ -4082,7 +4082,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -4851,6 +4851,8 @@
             var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
               checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+            } else if (name === 'v-slot' || name[0] === '#') {
+              checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
               checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
@@ -4870,9 +4872,9 @@
   }
 
   function checkEvent (exp, text, warn, range) {
-    var stipped = exp.replace(stripStringRE, '');
-    var keywordMatch = stipped.match(unaryOperatorsRE);
-    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    var stripped = exp.replace(stripStringRE, '');
+    var keywordMatch = stripped.match(unaryOperatorsRE);
+    if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
       warn(
         "avoid using JavaScript unary operator as property name: " +
         "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -4927,6 +4929,19 @@
     }
   }
 
+  function checkFunctionParameterExpression (exp, text, warn, range) {
+    try {
+      new Function(exp, '');
+    } catch (e) {
+      warn(
+        "invalid function parameter expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
+      );
+    }
+  }
+
   /*  */
 
   var range = 2;

packages/vue-template-compiler/build.js

@@ -267,7 +267,7 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
@@ -2349,7 +2349,7 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^#/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -2973,7 +2973,7 @@ function processSlotContent (el) {
           if (el.parent && !maybeComponent(el.parent)) {
             warn$1(
               "<template v-slot> can only appear at the root level inside " +
-              "the receiving the component",
+              "the receiving component",
               el
             );
           }
@@ -3712,7 +3712,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -4484,6 +4484,8 @@ function checkNode (node, warn) {
           var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
             checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
             checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
@@ -4503,9 +4505,9 @@ function checkNode (node, warn) {
 }
 
 function checkEvent (exp, text, warn, range) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+  var stripped = exp.replace(stripStringRE, '');
+  var keywordMatch = stripped.match(unaryOperatorsRE);
+  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
     warn(
       "avoid using JavaScript unary operator as property name: " +
       "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
@@ -4560,6 +4562,19 @@ function checkExpression (exp, text, warn, range) {
   }
 }
 
+function checkFunctionParameterExpression (exp, text, warn, range) {
+  try {
+    new Function(exp, '');
+  } catch (e) {
+    warn(
+      "invalid function parameter expression: " + (e.message) + " in\n\n" +
+      "    " + exp + "\n\n" +
+      "  Raw expression: " + (text.trim()) + "\n",
+      range
+    );
+  }
+}
+
 /*  */
 
 var range = 2;

packages/vue-template-compiler/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.10",
+  "version": "2.6.11",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",