Make order in tags file deterministic

Change-Id: Ic63ad2d1735c288342c5558718c7568e2961979d
Reviewed-by: Luca Di Sera <luca.disera@qt.io>
(cherry picked from commit faeb8d4792e0f88c3ece0c8eead1abf65996a171)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 111 insertions, 110 deletions

diff --git a/src/qdoc/tagfilewriter.cpp b/src/qdoc/tagfilewriter.cpp
index 25535bc9c..7b0b61bd9 100644
--- a/src/qdoc/tagfilewriter.cpp
+++ b/src/qdoc/tagfilewriter.cpp
@@ -136,7 +136,8 @@ void TagFileWriter::generateTagFileCompounds(QXmlStreamWriter &writer, const Agg
  */
 void TagFileWriter::generateTagFileMembers(QXmlStreamWriter &writer, const Aggregate *parent)
 {
-    const auto &childNodes = parent->childNodes();
+    auto childNodes = parent->childNodes();
+    std::sort(childNodes.begin(), childNodes.end(), Node::nodeNameLessThan);
     for (const auto *node : childNodes) {
         if (!node->url().isNull())
             continue;
diff --git a/tests/auto/qdoc/generatedoutput/expected_output/testtagfile.tags b/tests/auto/qdoc/generatedoutput/expected_output/testtagfile.tags
index 49ceccd6d..7cb8447aa 100644
--- a/tests/auto/qdoc/generatedoutput/expected_output/testtagfile.tags
+++ b/tests/auto/qdoc/generatedoutput/expected_output/testtagfile.tags
@@ -5,10 +5,10 @@
         <filename>qml-qdoc-test-abstractparent.html</filename>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type>void</type>
-            <name>rear</name>
+            <name>name</name>
             <anchorfile>qml-qdoc-test-abstractparent.html</anchorfile>
-            <anchor>rear-method</anchor>
-            <arglist>(Child child, var method)</arglist>
+            <anchor>name-method</anchor>
+            <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type>void</type>
@@ -19,10 +19,10 @@
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type>void</type>
-            <name>name</name>
+            <name>rear</name>
             <anchorfile>qml-qdoc-test-abstractparent.html</anchorfile>
-            <anchor>name-method</anchor>
-            <arglist>()</arglist>
+            <anchor>rear-method</anchor>
+            <arglist>(Child child, var method)</arglist>
         </member>
     </compound>
     <compound kind="class">
@@ -59,31 +59,31 @@
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>foo</name>
+            <name>fail</name>
             <anchorfile>qml-qdoc-test-doctest.html</anchorfile>
-            <anchor>foo-signal</anchor>
-            <arglist>(var bar)</arglist>
+            <anchor>fail-method</anchor>
+            <arglist>(message)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>itsHappening</name>
+            <name>fail_hard</name>
             <anchorfile>qml-qdoc-test-doctest.html</anchorfile>
-            <anchor>itsHappening-signal</anchor>
-            <arglist>(bool really)</arglist>
+            <anchor>fail_hard-method</anchor>
+            <arglist>(msg, option)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>fail</name>
+            <name>foo</name>
             <anchorfile>qml-qdoc-test-doctest.html</anchorfile>
-            <anchor>fail-method</anchor>
-            <arglist>(message)</arglist>
+            <anchor>foo-signal</anchor>
+            <arglist>(var bar)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>fail_hard</name>
+            <name>itsHappening</name>
             <anchorfile>qml-qdoc-test-doctest.html</anchorfile>
-            <anchor>fail_hard-method</anchor>
-            <arglist>(msg, option)</arglist>
+            <anchor>itsHappening-signal</anchor>
+            <arglist>(bool really)</arglist>
         </member>
     </compound>
     <compound kind="class">
@@ -121,46 +121,54 @@
     <compound kind="class">
         <name>TestQDoc::Test</name>
         <filename>testqdoc-test.html</filename>
-        <member kind="typedef" type="">
-            <name>SomeType</name>
-            <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>SomeType-typedef</anchor>
-            <arglist></arglist>
-        </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>int</type>
-            <name>someFunction</name>
+            <type></type>
+            <name>QDOCTEST_MACRO2</name>
             <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>someFunction</anchor>
-            <arglist>(int, int v)</arglist>
+            <anchor>QDOCTEST_MACRO2</anchor>
+            <arglist>(int &amp;x)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>void</type>
-            <name>someFunctionDefaultArg</name>
+            <type></type>
+            <name>Test</name>
             <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>someFunctionDefaultArg</anchor>
-            <arglist>(int i, bool b)</arglist>
+            <anchor>Test</anchor>
+            <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>void</type>
-            <name>obsoleteMember</name>
+            <type>TestQDoc::Test &amp;</type>
+            <name>operator++</name>
             <anchorfile>testqdoc-test-obsolete.html</anchorfile>
-            <anchor>obsoleteMember</anchor>
+            <anchor>operator-2b-2b</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>void</type>
-            <name>anotherObsoleteMember</name>
+            <type>TestQDoc::Test &amp;</type>
+            <name>operator--</name>
             <anchorfile>testqdoc-test-obsolete.html</anchorfile>
-            <anchor>anotherObsoleteMember</anchor>
+            <anchor>operator--</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>void</type>
-            <name>deprecatedMember</name>
-            <anchorfile>testqdoc-test-obsolete.html</anchorfile>
-            <anchor>deprecatedMember</anchor>
-            <arglist>()</arglist>
+            <type>TestQDoc::Test &amp;</type>
+            <name>operator=</name>
+            <anchorfile>testqdoc-test.html</anchorfile>
+            <anchor>operator-eq</anchor>
+            <arglist>(TestQDoc::Test &amp;&amp;other)</arglist>
+        </member>
+        <member kind="function" protection="public" virtualness="non" static="no">
+            <type>bool</type>
+            <name>operator==</name>
+            <anchorfile>testqdoc-test.html</anchorfile>
+            <anchor>operator-eq-eq</anchor>
+            <arglist>(const TestQDoc::Test &amp;lhs, const TestQDoc::Test &amp;rhs)</arglist>
+        </member>
+        <member kind="function" protection="public" virtualness="non" static="no">
+            <type>int</type>
+            <name>someFunction</name>
+            <anchorfile>testqdoc-test.html</anchorfile>
+            <anchor>someFunction</anchor>
+            <arglist>(int, int v)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type>void (*)(bool)</type>
@@ -170,17 +178,17 @@
             <arglist>(*)(bool) funcPtr(bool b, const char *s)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>TestQDoc::Test &amp;</type>
-            <name>operator++</name>
+            <type>void</type>
+            <name>anotherObsoleteMember</name>
             <anchorfile>testqdoc-test-obsolete.html</anchorfile>
-            <anchor>operator-2b-2b</anchor>
+            <anchor>anotherObsoleteMember</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>TestQDoc::Test &amp;</type>
-            <name>operator--</name>
+            <type>void</type>
+            <name>deprecatedMember</name>
             <anchorfile>testqdoc-test-obsolete.html</anchorfile>
-            <anchor>operator--</anchor>
+            <anchor>deprecatedMember</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
@@ -190,19 +198,12 @@
             <anchor>inlineFunction</anchor>
             <arglist>()</arglist>
         </member>
-        <member kind="function" protection="public" virtualness="virtual" static="no">
-            <type>virtual void</type>
-            <name>virtualFun</name>
-            <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>virtualFun</anchor>
-            <arglist>()</arglist>
-        </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type>bool</type>
-            <name>operator==</name>
-            <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>operator-eq-eq</anchor>
-            <arglist>(const TestQDoc::Test &amp;lhs, const TestQDoc::Test &amp;rhs)</arglist>
+            <type>void</type>
+            <name>obsoleteMember</name>
+            <anchorfile>testqdoc-test-obsolete.html</anchorfile>
+            <anchor>obsoleteMember</anchor>
+            <arglist>()</arglist>
         </member>
         <member kind="function" protection="protected" virtualness="non" static="no">
             <type>void</type>
@@ -219,31 +220,44 @@
             <arglist>(bool b)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type></type>
-            <name>Test</name>
+            <type>void</type>
+            <name>someFunctionDefaultArg</name>
             <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>Test</anchor>
-            <arglist>()</arglist>
+            <anchor>someFunctionDefaultArg</anchor>
+            <arglist>(int i, bool b)</arglist>
         </member>
-        <member kind="function" protection="public" virtualness="non" static="no">
-            <type>TestQDoc::Test &amp;</type>
-            <name>operator=</name>
+        <member kind="function" protection="public" virtualness="virtual" static="no">
+            <type>virtual void</type>
+            <name>virtualFun</name>
             <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>operator-eq</anchor>
-            <arglist>(TestQDoc::Test &amp;&amp;other)</arglist>
+            <anchor>virtualFun</anchor>
+            <arglist>()</arglist>
         </member>
-        <member kind="function" protection="public" virtualness="non" static="no">
-            <type></type>
-            <name>QDOCTEST_MACRO2</name>
+        <member kind="typedef" type="">
+            <name>SomeType</name>
             <anchorfile>testqdoc-test.html</anchorfile>
-            <anchor>QDOCTEST_MACRO2</anchor>
-            <arglist>(int &amp;x)</arglist>
+            <anchor>SomeType-typedef</anchor>
+            <arglist></arglist>
         </member>
     </compound>
     <compound kind="class">
         <name>TestQDoc::TestDerived</name>
         <filename>testqdoc-testderived.html</filename>
         <base>Test</base>
+        <member kind="function" protection="public" virtualness="non" static="yes">
+            <type>void</type>
+            <name>staticObsoleteMember</name>
+            <anchorfile>testqdoc-testderived-obsolete.html</anchorfile>
+            <anchor>staticObsoleteMember</anchor>
+            <arglist>()</arglist>
+        </member>
+        <member kind="function" protection="public" virtualness="virtual" static="no">
+            <type>virtual void</type>
+            <name>virtualFun</name>
+            <anchorfile>testqdoc-testderived.html</anchorfile>
+            <anchor>virtualFun</anchor>
+            <arglist>() override</arglist>
+        </member>
         <member kind="typedef" type="">
             <name>DerivedType</name>
             <anchorfile>testqdoc-testderived.html</anchorfile>
@@ -256,32 +270,11 @@
             <anchor>NotTypedef-typedef</anchor>
             <arglist></arglist>
         </member>
-        <member kind="function" protection="public" virtualness="virtual" static="no">
-            <type>virtual void</type>
-            <name>virtualFun</name>
-            <anchorfile>testqdoc-testderived.html</anchorfile>
-            <anchor>virtualFun</anchor>
-            <arglist>() override</arglist>
-        </member>
-        <member kind="function" protection="public" virtualness="non" static="yes">
-            <type>void</type>
-            <name>staticObsoleteMember</name>
-            <anchorfile>testqdoc-testderived-obsolete.html</anchorfile>
-            <anchor>staticObsoleteMember</anchor>
-            <arglist>()</arglist>
-        </member>
     </compound>
     <compound kind="class">
         <name>QDoc.Test.Type</name>
         <filename>qml-qdoc-test-type.html</filename>
         <member kind="function" protection="public" virtualness="non" static="no">
-            <type></type>
-            <name>group.created</name>
-            <anchorfile>qml-qdoc-test-type.html</anchorfile>
-            <anchor>group.created-signal</anchor>
-            <arglist>()</arglist>
-        </member>
-        <member kind="function" protection="public" virtualness="non" static="no">
             <type>Type</type>
             <name>copy</name>
             <anchorfile>qml-qdoc-test-type.html</anchorfile>
@@ -290,37 +283,44 @@
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>enable</name>
+            <name>completed</name>
             <anchorfile>qml-qdoc-test-type.html</anchorfile>
-            <anchor>enable-method</anchor>
-            <arglist>()</arglist>
+            <anchor>completed-signal</anchor>
+            <arglist>(int status)</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>disable</name>
+            <name>configured</name>
             <anchorfile>qml-qdoc-test-type.html</anchorfile>
-            <anchor>disable-method</anchor>
+            <anchor>configured-signal</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>completed</name>
+            <name>deprecatedMethod</name>
+            <anchorfile>qml-qdoc-test-type-obsolete.html</anchorfile>
+            <anchor>deprecatedMethod-method</anchor>
+            <arglist>()</arglist>
+        </member>
+        <member kind="function" protection="public" virtualness="non" static="no">
+            <type></type>
+            <name>disable</name>
             <anchorfile>qml-qdoc-test-type.html</anchorfile>
-            <anchor>completed-signal</anchor>
-            <arglist>(int status)</arglist>
+            <anchor>disable-method</anchor>
+            <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>configured</name>
+            <name>enable</name>
             <anchorfile>qml-qdoc-test-type.html</anchorfile>
-            <anchor>configured-signal</anchor>
+            <anchor>enable-method</anchor>
             <arglist>()</arglist>
         </member>
         <member kind="function" protection="public" virtualness="non" static="no">
             <type></type>
-            <name>deprecatedMethod</name>
-            <anchorfile>qml-qdoc-test-type-obsolete.html</anchorfile>
-            <anchor>deprecatedMethod-method</anchor>
+            <name>group.created</name>
+            <anchorfile>qml-qdoc-test-type.html</anchorfile>
+            <anchor>group.created-signal</anchor>
             <arglist>()</arglist>
         </member>
     </compound>