From e4495d83219c7f057e5b345752a281d0c52c68dd Mon Sep 17 00:00:00 2001
From: Volker Hilsheimer <volker.hilsheimer@qt.io>
Date: Tue, 3 Dec 2024 13:18:20 +0100
Subject: [PATCH] Fix build of lexgen tool

Use QMultiHash explicitly, and build list of values in a QSet via the
range constructor.

Task-number: QTBUG-131842
Change-Id: I9cbcddeada0bfd88b11515262f5476e5d59e0fad
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
(cherry picked from commit e1217cc52bd367b7e040edeb86700dc923df39a8)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 util/lexgen/generator.cpp |  2 +-
 util/lexgen/generator.h   |  4 ++--
 util/lexgen/nfa.cpp       | 15 ++++++++-------
 util/lexgen/nfa.h         |  2 +-
 4 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/util/lexgen/generator.cpp b/util/lexgen/generator.cpp
index 01de30d5c53..991091d9500 100644
--- a/util/lexgen/generator.cpp
+++ b/util/lexgen/generator.cpp
@@ -157,7 +157,7 @@ QString Class::definition() const
 Generator::Generator(const DFA &_dfa, const Config &config)
      : dfa(_dfa), cfg(config)
 {
-    QList<InputType> lst = cfg.maxInputSet.toList();
+    QList<InputType> lst(cfg.maxInputSet.cbegin(), cfg.maxInputSet.cend());
     std::sort(lst.begin(), lst.end());
     minInput = lst.first();
     maxInput = lst.last();
diff --git a/util/lexgen/generator.h b/util/lexgen/generator.h
index 4ee6fe9811d..70d63338b29 100644
--- a/util/lexgen/generator.h
+++ b/util/lexgen/generator.h
@@ -40,7 +40,7 @@ public:
     ~LineStream()
     {
         if (!--shared->ref) {
-            (*shared->stream) << endl;
+            (*shared->stream) << Qt::endl;
             delete shared;
         }
     }
@@ -64,7 +64,7 @@ public:
     LineStream operator<<(const T &value)
     { stream << indentStr; stream << value; return LineStream(&stream); }
 
-    inline void addNewLine() { stream << endl; }
+    inline void addNewLine() { stream << Qt::endl; }
 
     inline QString toString() const { stream.flush(); return output; }
 
diff --git a/util/lexgen/nfa.cpp b/util/lexgen/nfa.cpp
index 2564b15df24..6676acbd567 100644
--- a/util/lexgen/nfa.cpp
+++ b/util/lexgen/nfa.cpp
@@ -32,7 +32,7 @@ void NFA::addTransition(int from, InputType input, int to)
     assertValidState(from);
     assertValidState(to);
 
-    states[from].transitions.insertMulti(input, to);
+    states[from].transitions.insert(input, to);
 }
 
 void NFA::copyFrom(const NFA &other, int baseState)
@@ -449,12 +449,13 @@ DFA DFA::minimize() const
             }
     } while (!done);
 
-    QHash<int, int> statesToEliminate;
-    for (int i = 0; i < count(); ++i)
-        for (int j = 0; j < i; ++j)
-            if (!inequivalentStates[i * count() + j]) {
-                statesToEliminate.insertMulti(i, j);
-            }
+    QMultiHash<int, int> statesToEliminate;
+    for (int i = 0; i < count(); ++i) {
+        for (int j = 0; j < i; ++j) {
+            if (!inequivalentStates[i * count() + j])
+                statesToEliminate.insert(i, j);
+        }
+    }
 
     /*
     qDebug() << "states to eliminiate:" << statesToEliminate.count();
diff --git a/util/lexgen/nfa.h b/util/lexgen/nfa.h
index f806670b07a..70f1f1e34d0 100644
--- a/util/lexgen/nfa.h
+++ b/util/lexgen/nfa.h
@@ -14,7 +14,7 @@
 
 #include "global.h"
 
-typedef QHash<InputType, int> TransitionMap;
+typedef QMultiHash<InputType, int> TransitionMap;
 
 struct State
 {