, use
.'
+ );
+ }
+ }
+ addAttr(el, name, JSON.stringify(value));
+ }
+ }
+}
+
+function checkInFor (el) {
+ var parent = el;
+ while (parent) {
+ if (parent.for !== undefined) {
+ return true
+ }
+ parent = parent.parent;
+ }
+ return false
+}
+
+function parseModifiers (name) {
+ var match = name.match(modifierRE);
+ if (match) {
+ var ret = {};
+ match.forEach(function (m) { ret[m.slice(1)] = true; });
+ return ret
+ }
+}
+
+function makeAttrsMap (attrs) {
+ var map = {};
+ for (var i = 0, l = attrs.length; i < l; i++) {
+ if (
+ "development" !== 'production' &&
+ map[attrs[i].name] && !isIE && !isEdge
+ ) {
+ warn$2('duplicate attribute: ' + attrs[i].name);
+ }
+ map[attrs[i].name] = attrs[i].value;
+ }
+ return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+ return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+ return (
+ el.tag === 'style' ||
+ (el.tag === 'script' && (
+ !el.attrsMap.type ||
+ el.attrsMap.type === 'text/javascript'
+ ))
+ )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+ var res = [];
+ for (var i = 0; i < attrs.length; i++) {
+ var attr = attrs[i];
+ if (!ieNSBug.test(attr.name)) {
+ attr.name = attr.name.replace(ieNSPrefix, '');
+ res.push(attr);
+ }
+ }
+ return res
+}
+
+function checkForAliasModel (el, value) {
+ var _el = el;
+ while (_el) {
+ if (_el.for && _el.alias === value) {
+ warn$2(
+ "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+ "You are binding v-model directly to a v-for iteration alias. " +
+ "This will not be able to modify the v-for source array because " +
+ "writing to the alias is like modifying a function local variable. " +
+ "Consider using an array of objects and use v-model on an object property instead."
+ );
+ }
+ _el = _el.parent;
+ }
+}
+
+/* */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ * create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+ if (!root) { return }
+ isStaticKey = genStaticKeysCached(options.staticKeys || '');
+ isPlatformReservedTag = options.isReservedTag || no;
+ // first pass: mark all non-static nodes.
+ markStatic$1(root);
+ // second pass: mark static roots.
+ markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+ return makeMap(
+ 'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+ (keys ? ',' + keys : '')
+ )
+}
+
+function markStatic$1 (node) {
+ node.static = isStatic(node);
+ if (node.type === 1) {
+ // do not make component slot content static. this avoids
+ // 1. components not able to mutate slot nodes
+ // 2. static slot content fails for hot-reloading
+ if (
+ !isPlatformReservedTag(node.tag) &&
+ node.tag !== 'slot' &&
+ node.attrsMap['inline-template'] == null
+ ) {
+ return
+ }
+ for (var i = 0, l = node.children.length; i < l; i++) {
+ var child = node.children[i];
+ markStatic$1(child);
+ if (!child.static) {
+ node.static = false;
+ }
+ }
+ if (node.ifConditions) {
+ for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+ var block = node.ifConditions[i$1].block;
+ markStatic$1(block);
+ if (!block.static) {
+ node.static = false;
+ }
+ }
+ }
+ }
+}
+
+function markStaticRoots (node, isInFor) {
+ if (node.type === 1) {
+ if (node.static || node.once) {
+ node.staticInFor = isInFor;
+ }
+ // For a node to qualify as a static root, it should have children that
+ // are not just static text. Otherwise the cost of hoisting out will
+ // outweigh the benefits and it's better off to just always render it fresh.
+ if (node.static && node.children.length && !(
+ node.children.length === 1 &&
+ node.children[0].type === 3
+ )) {
+ node.staticRoot = true;
+ return
+ } else {
+ node.staticRoot = false;
+ }
+ if (node.children) {
+ for (var i = 0, l = node.children.length; i < l; i++) {
+ markStaticRoots(node.children[i], isInFor || !!node.for);
+ }
+ }
+ if (node.ifConditions) {
+ for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+ markStaticRoots(node.ifConditions[i$1].block, isInFor);
+ }
+ }
+ }
+}
+
+function isStatic (node) {
+ if (node.type === 2) { // expression
+ return false
+ }
+ if (node.type === 3) { // text
+ return true
+ }
+ return !!(node.pre || (
+ !node.hasBindings && // no dynamic bindings
+ !node.if && !node.for && // not v-if or v-for or v-else
+ !isBuiltInTag(node.tag) && // not a built-in
+ isPlatformReservedTag(node.tag) && // not a component
+ !isDirectChildOfTemplateFor(node) &&
+ Object.keys(node).every(isStaticKey)
+ ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+ while (node.parent) {
+ node = node.parent;
+ if (node.tag !== 'template') {
+ return false
+ }
+ if (node.for) {
+ return true
+ }
+ }
+ return false
+}
+
+/* */
+
+var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+
+// keyCode aliases
+var keyCodes = {
+ esc: 27,
+ tab: 9,
+ enter: 13,
+ space: 32,
+ up: 38,
+ left: 37,
+ right: 39,
+ down: 40,
+ 'delete': [8, 46]
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+ stop: '$event.stopPropagation();',
+ prevent: '$event.preventDefault();',
+ self: genGuard("$event.target !== $event.currentTarget"),
+ ctrl: genGuard("!$event.ctrlKey"),
+ shift: genGuard("!$event.shiftKey"),
+ alt: genGuard("!$event.altKey"),
+ meta: genGuard("!$event.metaKey"),
+ left: genGuard("'button' in $event && $event.button !== 0"),
+ middle: genGuard("'button' in $event && $event.button !== 1"),
+ right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+ events,
+ isNative,
+ warn
+) {
+ var res = isNative ? 'nativeOn:{' : 'on:{';
+ for (var name in events) {
+ var handler = events[name];
+ // #5330: warn click.right, since right clicks do not actually fire click events.
+ if ("development" !== 'production' &&
+ name === 'click' &&
+ handler && handler.modifiers && handler.modifiers.right
+ ) {
+ warn(
+ "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
+ "do not actually fire \"click\" events."
+ );
+ }
+ res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+ }
+ return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+ name,
+ handler
+) {
+ if (!handler) {
+ return 'function(){}'
+ }
+
+ if (Array.isArray(handler)) {
+ return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+ }
+
+ var isMethodPath = simplePathRE.test(handler.value);
+ var isFunctionExpression = fnExpRE.test(handler.value);
+
+ if (!handler.modifiers) {
+ return isMethodPath || isFunctionExpression
+ ? handler.value
+ : ("function($event){" + (handler.value) + "}") // inline statement
+ } else {
+ var code = '';
+ var genModifierCode = '';
+ var keys = [];
+ for (var key in handler.modifiers) {
+ if (modifierCode[key]) {
+ genModifierCode += modifierCode[key];
+ // left/right
+ if (keyCodes[key]) {
+ keys.push(key);
+ }
+ } else {
+ keys.push(key);
+ }
+ }
+ if (keys.length) {
+ code += genKeyFilter(keys);
+ }
+ // Make sure modifiers like prevent and stop get executed after key filtering
+ if (genModifierCode) {
+ code += genModifierCode;
+ }
+ var handlerCode = isMethodPath
+ ? handler.value + '($event)'
+ : isFunctionExpression
+ ? ("(" + (handler.value) + ")($event)")
+ : handler.value;
+ return ("function($event){" + code + handlerCode + "}")
+ }
+}
+
+function genKeyFilter (keys) {
+ return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+ var keyVal = parseInt(key, 10);
+ if (keyVal) {
+ return ("$event.keyCode!==" + keyVal)
+ }
+ var alias = keyCodes[key];
+ return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+}
+
+/* */
+
+function on (el, dir) {
+ if ("development" !== 'production' && dir.modifiers) {
+ warn("v-on without argument does not support modifiers.");
+ }
+ el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/* */
+
+function bind$1 (el, dir) {
+ el.wrapData = function (code) {
+ return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+ };
+}
+
+/* */
+
+var baseDirectives = {
+ on: on,
+ bind: bind$1,
+ cloak: noop
+};
+
+/* */
+
+var CodegenState = function CodegenState (options) {
+ this.options = options;
+ this.warn = options.warn || baseWarn;
+ this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+ this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+ this.directives = extend(extend({}, baseDirectives), options.directives);
+ var isReservedTag = options.isReservedTag || no;
+ this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+ this.onceId = 0;
+ this.staticRenderFns = [];
+};
+
+
+
+function generate (
+ ast,
+ options
+) {
+ var state = new CodegenState(options);
+ var code = ast ? genElement(ast, state) : '_c("div")';
+ return {
+ render: ("with(this){return " + code + "}"),
+ staticRenderFns: state.staticRenderFns
+ }
+}
+
+function genElement (el, state) {
+ if (el.staticRoot && !el.staticProcessed) {
+ return genStatic(el, state)
+ } else if (el.once && !el.onceProcessed) {
+ return genOnce(el, state)
+ } else if (el.for && !el.forProcessed) {
+ return genFor(el, state)
+ } else if (el.if && !el.ifProcessed) {
+ return genIf(el, state)
+ } else if (el.tag === 'template' && !el.slotTarget) {
+ return genChildren(el, state) || 'void 0'
+ } else if (el.tag === 'slot') {
+ return genSlot(el, state)
+ } else {
+ // component or element
+ var code;
+ if (el.component) {
+ code = genComponent(el.component, el, state);
+ } else {
+ var data = el.plain ? undefined : genData$2(el, state);
+
+ var children = el.inlineTemplate ? null : genChildren(el, state, true);
+ code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+ }
+ // module transforms
+ for (var i = 0; i < state.transforms.length; i++) {
+ code = state.transforms[i](el, code);
+ }
+ return code
+ }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+ el.staticProcessed = true;
+ state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+ return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+ el.onceProcessed = true;
+ if (el.if && !el.ifProcessed) {
+ return genIf(el, state)
+ } else if (el.staticInFor) {
+ var key = '';
+ var parent = el.parent;
+ while (parent) {
+ if (parent.for) {
+ key = parent.key;
+ break
+ }
+ parent = parent.parent;
+ }
+ if (!key) {
+ "development" !== 'production' && state.warn(
+ "v-once can only be used inside v-for that is keyed. "
+ );
+ return genElement(el, state)
+ }
+ return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+ } else {
+ return genStatic(el, state)
+ }
+}
+
+function genIf (
+ el,
+ state,
+ altGen,
+ altEmpty
+) {
+ el.ifProcessed = true; // avoid recursion
+ return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+ conditions,
+ state,
+ altGen,
+ altEmpty
+) {
+ if (!conditions.length) {
+ return altEmpty || '_e()'
+ }
+
+ var condition = conditions.shift();
+ if (condition.exp) {
+ return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+ } else {
+ return ("" + (genTernaryExp(condition.block)))
+ }
+
+ // v-if with v-once should generate code like (a)?_m(0):_m(1)
+ function genTernaryExp (el) {
+ return altGen
+ ? altGen(el, state)
+ : el.once
+ ? genOnce(el, state)
+ : genElement(el, state)
+ }
+}
+
+function genFor (
+ el,
+ state,
+ altGen,
+ altHelper
+) {
+ var exp = el.for;
+ var alias = el.alias;
+ var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+ var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+ if ("development" !== 'production' &&
+ state.maybeComponent(el) &&
+ el.tag !== 'slot' &&
+ el.tag !== 'template' &&
+ !el.key
+ ) {
+ state.warn(
+ "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+ "v-for should have explicit keys. " +
+ "See https://vuejs.org/guide/list.html#key for more info.",
+ true /* tip */
+ );
+ }
+
+ el.forProcessed = true; // avoid recursion
+ return (altHelper || '_l') + "((" + exp + ")," +
+ "function(" + alias + iterator1 + iterator2 + "){" +
+ "return " + ((altGen || genElement)(el, state)) +
+ '})'
+}
+
+function genData$2 (el, state) {
+ var data = '{';
+
+ // directives first.
+ // directives may mutate the el's other properties before they are generated.
+ var dirs = genDirectives(el, state);
+ if (dirs) { data += dirs + ','; }
+
+ // key
+ if (el.key) {
+ data += "key:" + (el.key) + ",";
+ }
+ // ref
+ if (el.ref) {
+ data += "ref:" + (el.ref) + ",";
+ }
+ if (el.refInFor) {
+ data += "refInFor:true,";
+ }
+ // pre
+ if (el.pre) {
+ data += "pre:true,";
+ }
+ // record original tag name for components using "is" attribute
+ if (el.component) {
+ data += "tag:\"" + (el.tag) + "\",";
+ }
+ // module data generation functions
+ for (var i = 0; i < state.dataGenFns.length; i++) {
+ data += state.dataGenFns[i](el);
+ }
+ // attributes
+ if (el.attrs) {
+ data += "attrs:{" + (genProps(el.attrs)) + "},";
+ }
+ // DOM props
+ if (el.props) {
+ data += "domProps:{" + (genProps(el.props)) + "},";
+ }
+ // event handlers
+ if (el.events) {
+ data += (genHandlers(el.events, false, state.warn)) + ",";
+ }
+ if (el.nativeEvents) {
+ data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+ }
+ // slot target
+ if (el.slotTarget) {
+ data += "slot:" + (el.slotTarget) + ",";
+ }
+ // scoped slots
+ if (el.scopedSlots) {
+ data += (genScopedSlots(el.scopedSlots, state)) + ",";
+ }
+ // component v-model
+ if (el.model) {
+ data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+ }
+ // inline-template
+ if (el.inlineTemplate) {
+ var inlineTemplate = genInlineTemplate(el, state);
+ if (inlineTemplate) {
+ data += inlineTemplate + ",";
+ }
+ }
+ data = data.replace(/,$/, '') + '}';
+ // v-bind data wrap
+ if (el.wrapData) {
+ data = el.wrapData(data);
+ }
+ // v-on data wrap
+ if (el.wrapListeners) {
+ data = el.wrapListeners(data);
+ }
+ return data
+}
+
+function genDirectives (el, state) {
+ var dirs = el.directives;
+ if (!dirs) { return }
+ var res = 'directives:[';
+ var hasRuntime = false;
+ var i, l, dir, needRuntime;
+ for (i = 0, l = dirs.length; i < l; i++) {
+ dir = dirs[i];
+ needRuntime = true;
+ var gen = state.directives[dir.name];
+ if (gen) {
+ // compile-time directive that manipulates AST.
+ // returns true if it also needs a runtime counterpart.
+ needRuntime = !!gen(el, dir, state.warn);
+ }
+ if (needRuntime) {
+ hasRuntime = true;
+ res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+ }
+ }
+ if (hasRuntime) {
+ return res.slice(0, -1) + ']'
+ }
+}
+
+function genInlineTemplate (el, state) {
+ var ast = el.children[0];
+ if ("development" !== 'production' && (
+ el.children.length > 1 || ast.type !== 1
+ )) {
+ state.warn('Inline-template components must have exactly one child element.');
+ }
+ if (ast.type === 1) {
+ var inlineRenderFns = generate(ast, state.options);
+ return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+ }
+}
+
+function genScopedSlots (
+ slots,
+ state
+) {
+ return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+ return genScopedSlot(key, slots[key], state)
+ }).join(',')) + "])")
+}
+
+function genScopedSlot (
+ key,
+ el,
+ state
+) {
+ if (el.for && !el.forProcessed) {
+ return genForScopedSlot(key, el, state)
+ }
+ return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+ "return " + (el.tag === 'template'
+ ? genChildren(el, state) || 'void 0'
+ : genElement(el, state)) + "}}"
+}
+
+function genForScopedSlot (
+ key,
+ el,
+ state
+) {
+ var exp = el.for;
+ var alias = el.alias;
+ var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+ var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+ el.forProcessed = true; // avoid recursion
+ return "_l((" + exp + ")," +
+ "function(" + alias + iterator1 + iterator2 + "){" +
+ "return " + (genScopedSlot(key, el, state)) +
+ '})'
+}
+
+function genChildren (
+ el,
+ state,
+ checkSkip,
+ altGenElement,
+ altGenNode
+) {
+ var children = el.children;
+ if (children.length) {
+ var el$1 = children[0];
+ // optimize single v-for
+ if (children.length === 1 &&
+ el$1.for &&
+ el$1.tag !== 'template' &&
+ el$1.tag !== 'slot'
+ ) {
+ return (altGenElement || genElement)(el$1, state)
+ }
+ var normalizationType = checkSkip
+ ? getNormalizationType(children, state.maybeComponent)
+ : 0;
+ var gen = altGenNode || genNode;
+ return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+ }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+ children,
+ maybeComponent
+) {
+ var res = 0;
+ for (var i = 0; i < children.length; i++) {
+ var el = children[i];
+ if (el.type !== 1) {
+ continue
+ }
+ if (needsNormalization(el) ||
+ (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+ res = 2;
+ break
+ }
+ if (maybeComponent(el) ||
+ (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+ res = 1;
+ }
+ }
+ return res
+}
+
+function needsNormalization (el) {
+ return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+ if (node.type === 1) {
+ return genElement(node, state)
+ } if (node.type === 3 && node.isComment) {
+ return genComment(node)
+ } else {
+ return genText(node)
+ }
+}
+
+function genText (text) {
+ return ("_v(" + (text.type === 2
+ ? text.expression // no need for () because already wrapped in _s()
+ : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+ return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+ var slotName = el.slotName || '"default"';
+ var children = genChildren(el, state);
+ var res = "_t(" + slotName + (children ? ("," + children) : '');
+ var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+ var bind$$1 = el.attrsMap['v-bind'];
+ if ((attrs || bind$$1) && !children) {
+ res += ",null";
+ }
+ if (attrs) {
+ res += "," + attrs;
+ }
+ if (bind$$1) {
+ res += (attrs ? '' : ',null') + "," + bind$$1;
+ }
+ return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+ componentName,
+ el,
+ state
+) {
+ var children = el.inlineTemplate ? null : genChildren(el, state, true);
+ return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+ var res = '';
+ for (var i = 0; i < props.length; i++) {
+ var prop = props[i];
+ res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+ }
+ return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+ return text
+ .replace(/\u2028/g, '\\u2028')
+ .replace(/\u2029/g, '\\u2029')
+}
+
+/* */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+ 'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+ 'super,throw,while,yield,delete,export,import,return,switch,default,' +
+ 'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+ 'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// check valid identifier for v-for
+var identRE = /[A-Za-z_$][\w$]*/;
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+ var errors = [];
+ if (ast) {
+ checkNode(ast, errors);
+ }
+ return errors
+}
+
+function checkNode (node, errors) {
+ if (node.type === 1) {
+ for (var name in node.attrsMap) {
+ if (dirRE.test(name)) {
+ var value = node.attrsMap[name];
+ if (value) {
+ if (name === 'v-for') {
+ checkFor(node, ("v-for=\"" + value + "\""), errors);
+ } else if (onRE.test(name)) {
+ checkEvent(value, (name + "=\"" + value + "\""), errors);
+ } else {
+ checkExpression(value, (name + "=\"" + value + "\""), errors);
+ }
+ }
+ }
+ }
+ if (node.children) {
+ for (var i = 0; i < node.children.length; i++) {
+ checkNode(node.children[i], errors);
+ }
+ }
+ } else if (node.type === 2) {
+ checkExpression(node.expression, node.text, errors);
+ }
+}
+
+function checkEvent (exp, text, errors) {
+ var stipped = exp.replace(stripStringRE, '');
+ var keywordMatch = stipped.match(unaryOperatorsRE);
+ if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+ errors.push(
+ "avoid using JavaScript unary operator as property name: " +
+ "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+ );
+ }
+ checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+ checkExpression(node.for || '', text, errors);
+ checkIdentifier(node.alias, 'v-for alias', text, errors);
+ checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+ checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (ident, type, text, errors) {
+ if (typeof ident === 'string' && !identRE.test(ident)) {
+ errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+ }
+}
+
+function checkExpression (exp, text, errors) {
+ try {
+ new Function(("return " + exp));
+ } catch (e) {
+ var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+ if (keywordMatch) {
+ errors.push(
+ "avoid using JavaScript keyword as property name: " +
+ "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+ );
+ } else {
+ errors.push(("invalid expression: " + (text.trim())));
+ }
+ }
+}
+
+/* */
+
+function createFunction (code, errors) {
+ try {
+ return new Function(code)
+ } catch (err) {
+ errors.push({ err: err, code: code });
+ return noop
+ }
+}
+
+function createCompileToFunctionFn (compile) {
+ var cache = Object.create(null);
+
+ return function compileToFunctions (
+ template,
+ options,
+ vm
+ ) {
+ options = options || {};
+
+ /* istanbul ignore if */
+ {
+ // detect possible CSP restriction
+ try {
+ new Function('return 1');
+ } catch (e) {
+ if (e.toString().match(/unsafe-eval|CSP/)) {
+ warn(
+ 'It seems you are using the standalone build of Vue.js in an ' +
+ 'environment with Content Security Policy that prohibits unsafe-eval. ' +
+ 'The template compiler cannot work in this environment. Consider ' +
+ 'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+ 'templates into render functions.'
+ );
+ }
+ }
+ }
+
+ // check cache
+ var key = options.delimiters
+ ? String(options.delimiters) + template
+ : template;
+ if (cache[key]) {
+ return cache[key]
+ }
+
+ // compile
+ var compiled = compile(template, options);
+
+ // check compilation errors/tips
+ {
+ if (compiled.errors && compiled.errors.length) {
+ warn(
+ "Error compiling template:\n\n" + template + "\n\n" +
+ compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+ vm
+ );
+ }
+ if (compiled.tips && compiled.tips.length) {
+ compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+ }
+ }
+
+ // turn code into functions
+ var res = {};
+ var fnGenErrors = [];
+ res.render = createFunction(compiled.render, fnGenErrors);
+ res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+ return createFunction(code, fnGenErrors)
+ });
+
+ // check function generation errors.
+ // this should only happen if there is a bug in the compiler itself.
+ // mostly for codegen development use
+ /* istanbul ignore if */
+ {
+ if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+ warn(
+ "Failed to generate render function:\n\n" +
+ fnGenErrors.map(function (ref) {
+ var err = ref.err;
+ var code = ref.code;
+
+ return ((err.toString()) + " in\n\n" + code + "\n");
+ }).join('\n'),
+ vm
+ );
+ }
+ }
+
+ return (cache[key] = res)
+ }
+}
+
+/* */
+
+function createCompilerCreator (baseCompile) {
+ return function createCompiler (baseOptions) {
+ function compile (
+ template,
+ options
+ ) {
+ var finalOptions = Object.create(baseOptions);
+ var errors = [];
+ var tips = [];
+ finalOptions.warn = function (msg, tip) {
+ (tip ? tips : errors).push(msg);
+ };
+
+ if (options) {
+ // merge custom modules
+ if (options.modules) {
+ finalOptions.modules =
+ (baseOptions.modules || []).concat(options.modules);
+ }
+ // merge custom directives
+ if (options.directives) {
+ finalOptions.directives = extend(
+ Object.create(baseOptions.directives),
+ options.directives
+ );
+ }
+ // copy other options
+ for (var key in options) {
+ if (key !== 'modules' && key !== 'directives') {
+ finalOptions[key] = options[key];
+ }
+ }
+ }
+
+ var compiled = baseCompile(template, finalOptions);
+ {
+ errors.push.apply(errors, detectErrors(compiled.ast));
+ }
+ compiled.errors = errors;
+ compiled.tips = tips;
+ return compiled
+ }
+
+ return {
+ compile: compile,
+ compileToFunctions: createCompileToFunctionFn(compile)
+ }
+ }
+}
+
+/* */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+ template,
+ options
+) {
+ var ast = parse(template.trim(), options);
+ optimize(ast, options);
+ var code = generate(ast, options);
+ return {
+ ast: ast,
+ render: code.render,
+ staticRenderFns: code.staticRenderFns
+ }
+});
+
+/* */
+
+var ref$1 = createCompiler(baseOptions);
+var compileToFunctions = ref$1.compileToFunctions;
+
+/* */
+
+var idToTemplate = cached(function (id) {
+ var el = query(id);
+ return el && el.innerHTML
+});
+
+var mount = Vue$3.prototype.$mount;
+Vue$3.prototype.$mount = function (
+ el,
+ hydrating
+) {
+ el = el && query(el);
+
+ /* istanbul ignore if */
+ if (el === document.body || el === document.documentElement) {
+ "development" !== 'production' && warn(
+ "Do not mount Vue to or - mount to normal elements instead."
+ );
+ return this
+ }
+
+ var options = this.$options;
+ // resolve template/el and convert to render function
+ if (!options.render) {
+ var template = options.template;
+ if (template) {
+ if (typeof template === 'string') {
+ if (template.charAt(0) === '#') {
+ template = idToTemplate(template);
+ /* istanbul ignore if */
+ if ("development" !== 'production' && !template) {
+ warn(
+ ("Template element not found or is empty: " + (options.template)),
+ this
+ );
+ }
+ }
+ } else if (template.nodeType) {
+ template = template.innerHTML;
+ } else {
+ {
+ warn('invalid template option:' + template, this);
+ }
+ return this
+ }
+ } else if (el) {
+ template = getOuterHTML(el);
+ }
+ if (template) {
+ /* istanbul ignore if */
+ if ("development" !== 'production' && config.performance && mark) {
+ mark('compile');
+ }
+
+ var ref = compileToFunctions(template, {
+ shouldDecodeNewlines: shouldDecodeNewlines,
+ delimiters: options.delimiters,
+ comments: options.comments
+ }, this);
+ var render = ref.render;
+ var staticRenderFns = ref.staticRenderFns;
+ options.render = render;
+ options.staticRenderFns = staticRenderFns;
+
+ /* istanbul ignore if */
+ if ("development" !== 'production' && config.performance && mark) {
+ mark('compile end');
+ measure(((this._name) + " compile"), 'compile', 'compile end');
+ }
+ }
+ }
+ return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+ if (el.outerHTML) {
+ return el.outerHTML
+ } else {
+ var container = document.createElement('div');
+ container.appendChild(el.cloneNode(true));
+ return container.innerHTML
+ }
+}
+
+Vue$3.compile = compileToFunctions;
+
+return Vue$3;
+
+})));
+exports('vue');
+});
\ No newline at end of file