From 377a606aefdbf826387dd46d6660646f5dbcce49 Mon Sep 17 00:00:00 2001
From: "Irina.Chernushina" <Irina.Chernushina@jetbrains.com>
Date: Tue, 30 Jan 2018 12:04:06 +0100
Subject: [PATCH] vue: in .vue files tags get preprocessed anyway, so allow any
 tag policy

= vue tags can have empty body and be self-closing
WEB-30808 Some of the vue components may have an empty body
---
 .../xml/util/CheckEmptyTagInspection.java     | 22 +++-------------
 .../src/com/intellij/xml/XmlExtension.java    | 25 ++++++++-----------
 2 files changed, 14 insertions(+), 33 deletions(-)

diff --git a/xml/xml-analysis-impl/src/com/intellij/xml/util/CheckEmptyTagInspection.java b/xml/xml-analysis-impl/src/com/intellij/xml/util/CheckEmptyTagInspection.java
index e01fcecb6e87..7889d6eefb13 100644
--- a/xml/xml-analysis-impl/src/com/intellij/xml/util/CheckEmptyTagInspection.java
+++ b/xml/xml-analysis-impl/src/com/intellij/xml/util/CheckEmptyTagInspection.java
@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2013 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.xml.util;
 
@@ -53,7 +39,7 @@ public class CheckEmptyTagInspection extends XmlSuppressableInspectionTool {
   public PsiElementVisitor buildVisitor(@NotNull final ProblemsHolder holder, boolean isOnTheFly) {
     return new XmlElementVisitor() {
       @Override public void visitXmlTag(final XmlTag tag) {
-        if (!isTagWithEmptyEndNotAllowed(tag)) {
+        if (XmlExtension.shouldIgnoreSelfClosingTag(tag) || !isTagWithEmptyEndNotAllowed(tag)) {
           return;
         }
         final ASTNode child = XmlChildRole.EMPTY_TAG_END_FINDER.findChild(tag.getNode());
@@ -84,8 +70,8 @@ public class CheckEmptyTagInspection extends XmlSuppressableInspectionTool {
 
            (language.isKindOf(HTMLLanguage.INSTANCE) &&
            !HtmlUtil.isSingleHtmlTagL(tagName) &&
-           tagName.indexOf(':') == -1
-           && !XmlExtension.isCollapsible(tag));
+           tagName.indexOf(':') == -1 &&
+           !XmlExtension.isCollapsible(tag));
   }
 
   @Override
diff --git a/xml/xml-psi-impl/src/com/intellij/xml/XmlExtension.java b/xml/xml-psi-impl/src/com/intellij/xml/XmlExtension.java
index e7818d949aea..2caa19441237 100644
--- a/xml/xml-psi-impl/src/com/intellij/xml/XmlExtension.java
+++ b/xml/xml-psi-impl/src/com/intellij/xml/XmlExtension.java
@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2009 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.xml;
 
 import com.intellij.codeInsight.daemon.impl.HighlightInfoType;
@@ -202,6 +188,15 @@ public abstract class XmlExtension {
     return false;
   }
 
+  public boolean isSelfClosingTagAllowed(@NotNull XmlTag tag) {
+    return false;
+  }
+
+  public static boolean shouldIgnoreSelfClosingTag(@NotNull XmlTag tag) {
+    final XmlExtension extension = getExtensionByElement(tag);
+    return extension != null && extension.isSelfClosingTagAllowed(tag);
+  }
+
   public static boolean isCollapsible(XmlTag tag) {
     final XmlExtension extension = getExtensionByElement(tag);
     return extension == null || extension.isCollapsibleTag(tag);