generators: Use QFlags to represent a "set" of architectures

This allows to avoid unneseccary allocations and use architecture "set"
in a constexpr context

Change-Id: I2352e899572978b3d1d7924e6f807b7441603aa7
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

3 files changed, 14 insertions, 12 deletions

diff --git a/src/lib/corelib/generators/generatorutils.h b/src/lib/corelib/generators/generatorutils.h
index 9348ab18c..58e59cbf8 100644
--- a/src/lib/corelib/generators/generatorutils.h
+++ b/src/lib/corelib/generators/generatorutils.h
@@ -41,14 +41,17 @@ namespace gen {
 namespace utils {
 
 enum class Architecture {
-    Arm,
-    Avr,
-    Mcs51,
-    Stm8,
-    Msp430,
-    Unknown
+    Unknown = 0,
+    Arm = 1 << 1,
+    Avr = 1 << 2,
+    Mcs51 = 1 << 3,
+    Stm8 = 1 << 4,
+    Msp430 = 1 << 5
 };
 
+Q_DECLARE_FLAGS(ArchitectureFlags, Architecture)
+Q_DECLARE_OPERATORS_FOR_FLAGS(ArchitectureFlags)
+
 QBS_EXPORT QString architectureName(Architecture arch);
 QBS_EXPORT Architecture architecture(const Project &qbsProject);
 QBS_EXPORT QString buildConfigurationName(const Project &qbsProject);
diff --git a/src/lib/corelib/generators/generatorversioninfo.cpp b/src/lib/corelib/generators/generatorversioninfo.cpp
index 3e2106b57..26983bf06 100644
--- a/src/lib/corelib/generators/generatorversioninfo.cpp
+++ b/src/lib/corelib/generators/generatorversioninfo.cpp
@@ -43,7 +43,7 @@ namespace qbs {
 namespace gen {
 
 VersionInfo::VersionInfo(const Version &version,
-                         const std::set<utils::Architecture> &archs)
+                         utils::ArchitectureFlags archs)
     : m_version(version), m_archs(archs)
 {
 }
@@ -66,7 +66,7 @@ Version VersionInfo::version() const
 
 bool VersionInfo::containsArchitecture(utils::Architecture arch) const
 {
-    return m_archs.find(arch) != m_archs.cend();
+    return m_archs & arch;
 }
 
 int VersionInfo::marketingVersion() const
diff --git a/src/lib/corelib/generators/generatorversioninfo.h b/src/lib/corelib/generators/generatorversioninfo.h
index 21d515411..93af4cab0 100644
--- a/src/lib/corelib/generators/generatorversioninfo.h
+++ b/src/lib/corelib/generators/generatorversioninfo.h
@@ -45,7 +45,7 @@
 #include <tools/qbs_export.h>
 #include <tools/version.h>
 
-#include <set>
+#include <QFlags>
 
 namespace qbs {
 namespace gen {
@@ -53,8 +53,7 @@ namespace gen {
 class QBS_EXPORT VersionInfo
 {
 public:
-    VersionInfo(const Version &version,
-                const std::set<utils::Architecture> &archs);
+    VersionInfo(const Version &version, utils::ArchitectureFlags archs);
 
     bool operator<(const VersionInfo &other) const;
     bool operator==(const VersionInfo &other) const;
@@ -66,7 +65,7 @@ public:
 
 private:
     Version m_version;
-    std::set<utils::Architecture> m_archs;
+    utils::ArchitectureFlags m_archs;
 };
 
 quint32 qHash(const VersionInfo &info);