QmlJS: Add ComponentVersion class to simplify dealing with versions.

src/libs/qmljs/qmljs-lib.pri

@@ -20,7 +20,8 @@ HEADERS += \
     $$PWD/qmljscheck.h \
     $$PWD/qmljsscopebuilder.h \
     $$PWD/qmljslineinfo.h \
-    $$PWD/qmljscompletioncontextfinder.h
+    $$PWD/qmljscompletioncontextfinder.h \
+    $$PWD/qmljscomponentversion.h
 
 SOURCES += \
     $$PWD/qmljsbind.cpp \
@@ -32,7 +33,8 @@ SOURCES += \
     $$PWD/qmljscheck.cpp \
     $$PWD/qmljsscopebuilder.cpp \
     $$PWD/qmljslineinfo.cpp \
-    $$PWD/qmljscompletioncontextfinder.cpp
+    $$PWD/qmljscompletioncontextfinder.cpp \
+    $$PWD/qmljscomponentversion.cpp
 
 OTHER_FILES += \
     $$PWD/parser/qmljs.g

src/libs/qmljs/qmljsbind.cpp

@@ -187,15 +187,12 @@ bool Bind::visit(UiImport *ast)
 {
     ImportInfo info;
 
-    info.majorVersion = QmlObjectValue::NoVersion;
-    info.minorVersion = QmlObjectValue::NoVersion;
-
     if (ast->versionToken.isValid()) {
         const QString versionString = _doc->source().mid(ast->versionToken.offset, ast->versionToken.length);
         const int dotIdx = versionString.indexOf(QLatin1Char('.'));
         if (dotIdx != -1) {
-            info.majorVersion = versionString.left(dotIdx).toInt();
-            info.minorVersion = versionString.mid(dotIdx + 1).toInt();
+            info.version = ComponentVersion(versionString.left(dotIdx).toInt(),
+                                            versionString.mid(dotIdx + 1).toInt());
         }
     }
 

src/libs/qmljs/qmljsbind.h

@@ -32,6 +32,7 @@
 
 #include <qmljs/parser/qmljsastvisitor_p.h>
 #include <qmljs/qmljsinterpreter.h>
+#include <qmljs/qmljscomponentversion.h>
 
 #include <QtCore/QHash>
 #include <QtCore/QStringList>
@@ -52,8 +53,7 @@ public:
 
     struct ImportInfo {
         QString name;
-        int majorVersion;
-        int minorVersion;
+        ComponentVersion version;
     };
 
     QList<ImportInfo> fileImports() const;

src/libs/qmljs/qmljscomponentversion.cpp

@@ -0,0 +1,50 @@
+#include "qmljscomponentversion.h"
+
+using namespace QmlJS;
+
+const int ComponentVersion::NoVersion = -1;
+
+ComponentVersion::ComponentVersion()
+    : _major(NoVersion), _minor(NoVersion)
+{
+}
+
+ComponentVersion::ComponentVersion(int major, int minor)
+    : _major(major), _minor(minor)
+{
+}
+
+ComponentVersion::~ComponentVersion()
+{
+}
+
+bool ComponentVersion::isValid() const
+{
+    return _major >= 0 && _minor >= 0;
+}
+
+namespace QmlJS {
+
+bool operator<(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.major() < rhs.major()
+            || (lhs.major() == rhs.major() && lhs.minor() < rhs.minor());
+}
+
+bool operator<=(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.major() < rhs.major()
+            || (lhs.major() == rhs.major() && lhs.minor() <= rhs.minor());
+}
+
+bool operator==(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return lhs.major() == rhs.major() && lhs.minor() == rhs.minor();
+}
+
+bool operator!=(const ComponentVersion &lhs, const ComponentVersion &rhs)
+{
+    return !(lhs == rhs);
+}
+
+}

src/libs/qmljs/qmljscomponentversion.h

@@ -0,0 +1,35 @@
+#ifndef QMLJSCOMPONENTVERSION_H
+#define QMLJSCOMPONENTVERSION_H
+
+#include "qmljs_global.h"
+
+namespace QmlJS {
+
+class QMLJS_EXPORT ComponentVersion
+{
+    int _major;
+    int _minor;
+
+public:
+    static const int NoVersion;
+
+    ComponentVersion();
+    ComponentVersion(int major, int minor);
+    ~ComponentVersion();
+
+    int major() const
+    { return _major; }
+    int minor() const
+    { return _minor; }
+
+    bool isValid() const;
+};
+
+bool operator<(const ComponentVersion &lhs, const ComponentVersion &rhs);
+bool operator<=(const ComponentVersion &lhs, const ComponentVersion &rhs);
+bool operator==(const ComponentVersion &lhs, const ComponentVersion &rhs);
+bool operator!=(const ComponentVersion &lhs, const ComponentVersion &rhs);
+
+} // namespace QmlJS
+
+#endif // QMLJSCOMPONENTVERSION_H