From fd5720af2cb1e641c433c73fd977c8ba9d278305 Mon Sep 17 00:00:00 2001
From: Edward Welbourne <edward.welbourne@theqtcompany.com>
Date: Wed, 20 Jan 2016 09:42:34 +0100
Subject: QDateTimeParser: new Section mask values simplify code.

Various |s of existing section flags were used repeatedly; naming
these masks makes the relevant code easier to read.  In QDateTimeEdit,
add a comment to make clear that its Section enum is based on QDTP's.

Change-Id: Ifd8364cd396a6d0d5ed7ae7dc4d31690f77edd30
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
---
 src/corelib/tools/qdatetimeparser.cpp | 18 +++++++++++-------
 src/corelib/tools/qdatetimeparser_p.h | 12 +++++++++---
 2 files changed, 20 insertions(+), 10 deletions(-)

(limited to 'src/corelib/tools')

diff --git a/src/corelib/tools/qdatetimeparser.cpp b/src/corelib/tools/qdatetimeparser.cpp
index cc09992b88..180f76bcc1 100644
--- a/src/corelib/tools/qdatetimeparser.cpp
+++ b/src/corelib/tools/qdatetimeparser.cpp
@@ -159,7 +159,7 @@ bool QDateTimeParser::setDigit(QDateTime &v, int index, int newVal) const
         break;
     }
 
-    if (!(node.type & (DaySection|DayOfWeekSectionShort|DayOfWeekSectionLong))) {
+    if (!(node.type & DaySectionMask)) {
         if (day < cachedDay)
             day = cachedDay;
         const int max = QDate(year, month, 1).daysInMonth();
@@ -625,6 +625,10 @@ int QDateTimeParser::sectionMaxSize(Section s, int count) const
     case Internal:
     case TimeSectionMask:
     case DateSectionMask:
+    case HourSectionMask:
+    case YearSectionMask:
+    case DayOfWeekSectionMask:
+    case DaySectionMask:
         qWarning("QDateTimeParser::sectionMaxSize: Invalid section %s",
                  SectionNode::name(s).toLatin1().constData());
 
@@ -993,12 +997,11 @@ QDateTimeParser::StateNode QDateTimeParser::parse(QString &input, int &cursorPos
 
                 const QDate date(year, month, day);
                 const int diff = dayofweek - date.dayOfWeek();
-                if (diff != 0 && state == Acceptable
-                 && isSet & (DayOfWeekSectionShort | DayOfWeekSectionLong)) {
+                if (diff != 0 && state == Acceptable && isSet & DayOfWeekSectionMask) {
                     if (isSet & DaySection)
                         conflicts = true;
                     const SectionNode &sn = sectionNode(currentSectionIndex);
-                    if (sn.type & (DayOfWeekSectionShort|DayOfWeekSectionLong) || currentSectionIndex == -1) {
+                    if (sn.type & DayOfWeekSectionMask || currentSectionIndex == -1) {
                         // dayofweek should be preferred
                         day += diff;
                         if (day <= 0) {
@@ -1010,8 +1013,9 @@ QDateTimeParser::StateNode QDateTimeParser::parse(QString &input, int &cursorPos
                                   << diff << QDate(year, month, day).dayOfWeek();
                     }
                 }
+
                 bool needfixday = false;
-                if (sectionType(currentSectionIndex) & (DaySection|DayOfWeekSectionShort|DayOfWeekSectionLong)) {
+                if (sectionType(currentSectionIndex) & DaySectionMask) {
                     cachedDay = day;
                 } else if (cachedDay > day) {
                     day = cachedDay;
@@ -1039,7 +1043,7 @@ QDateTimeParser::StateNode QDateTimeParser::parse(QString &input, int &cursorPos
                             const SectionNode sn = sectionNode(i);
                             if (sn.type & DaySection) {
                                 input.replace(sectionPos(sn), sectionSize(i), loc.toString(day));
-                            } else if (sn.type & (DayOfWeekSectionShort | DayOfWeekSectionLong)) {
+                            } else if (sn.type & DayOfWeekSectionMask) {
                                 const int dayOfWeek = QDate(year, month, day).dayOfWeek();
                                 const QLocale::FormatType dayFormat =
                                     (sn.type == DayOfWeekSectionShort
@@ -1296,7 +1300,7 @@ int QDateTimeParser::findDay(const QString &str1, int startDay, int sectionIndex
     int bestCount = 0;
     if (!str1.isEmpty()) {
         const SectionNode &sn = sectionNode(sectionIndex);
-        if (!(sn.type & (DaySection|DayOfWeekSectionShort|DayOfWeekSectionLong))) {
+        if (!(sn.type & DaySectionMask)) {
             qWarning("QDateTimeParser::findDay Internal error");
             return -1;
         }
diff --git a/src/corelib/tools/qdatetimeparser_p.h b/src/corelib/tools/qdatetimeparser_p.h
index d6c4d615db..90c6a8acba 100644
--- a/src/corelib/tools/qdatetimeparser_p.h
+++ b/src/corelib/tools/qdatetimeparser_p.h
@@ -114,14 +114,20 @@ public:
         MinuteSection = 0x00008,
         Hour12Section   = 0x00010,
         Hour24Section   = 0x00020,
-        TimeSectionMask = (AmPmSection|MSecSection|SecondSection|MinuteSection|Hour12Section|Hour24Section),
+        HourSectionMask = (Hour12Section | Hour24Section),
+        TimeSectionMask = (MSecSection | SecondSection | MinuteSection |
+                           HourSectionMask | AmPmSection),
+
         DaySection         = 0x00100,
         MonthSection       = 0x00200,
         YearSection        = 0x00400,
         YearSection2Digits = 0x00800,
+        YearSectionMask = YearSection | YearSection2Digits,
         DayOfWeekSectionShort = 0x01000,
         DayOfWeekSectionLong  = 0x02000,
-        DateSectionMask = (DaySection|MonthSection|YearSection|YearSection2Digits|DayOfWeekSectionShort|DayOfWeekSectionLong),
+        DayOfWeekSectionMask = DayOfWeekSectionShort | DayOfWeekSectionLong,
+        DaySectionMask = DaySection | DayOfWeekSectionMask,
+        DateSectionMask = DaySectionMask | MonthSection | YearSectionMask,
 
         Internal             = 0x10000,
         FirstSection         = 0x20000 | Internal,
@@ -132,7 +138,7 @@ public:
         FirstSectionIndex = -2,
         LastSectionIndex = -3,
         CalendarPopupIndex = -4
-    }; // duplicated from qdatetimeedit.h
+    }; // extending qdatetimeedit.h's equivalent
     Q_DECLARE_FLAGS(Sections, Section)
 
     struct Q_CORE_EXPORT SectionNode {
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