Add an is<PropertyName>Immutable to know if a property is immutable

Summary:
Add a utility function is<Parameter>Immutable to access immutability quickly.
Generated classes uses them internally to avoid code redundance.

Sample:
```
    /**
      Set blocked-by-default
    */
    void setBlockedByDefault( bool v )
    {
      if (v != mBlockedByDefault && !isBlockedByDefaultImmutable() )  {
        mBlockedByDefault = v;
        Q_EMIT blockedByDefaultChanged();
      }
    }

    /**
      Is blocked-by-default Immutable
    */
    bool isBlockedByDefaultImmutable()
    {
      return isImmutable( QStringLiteral( "blockedByDefault" ) );
    }
```

```
    /**
      Set org.kde.ActivityManager.ResourceScoringEnabled
    */
    void setResourceScoringEnabled( bool v )
    {
      if (!isResourceScoringEnabledImmutable() )
        mResourceScoringEnabled = v;
    }

    /**
      Is org.kde.ActivityManager.ResourceScoringEnabled Immutable
    */
    bool isResourceScoringEnabledImmutable()
    {
      return isImmutable( QStringLiteral( "resourceScoringEnabled" ) );
    }
```

Reviewers: ervin, #frameworks, dfaure

Reviewed By: ervin

Subscribers: dfaure, tcanabrava, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D26368

1 files changed, 3 insertions, 0 deletions

diff --git a/src/kconfig_compiler/KConfigCodeGeneratorBase.h b/src/kconfig_compiler/KConfigCodeGeneratorBase.h
index 5bbc6b71..0c815c9b 100644
--- a/src/kconfig_compiler/KConfigCodeGeneratorBase.h
+++ b/src/kconfig_compiler/KConfigCodeGeneratorBase.h
@@ -82,6 +82,9 @@ public:
     // TODO: write to the stream directly without returning a QString.
     QString memberAccessorBody(const CfgEntry *e, bool globalEnums) const;
 
+    // Implements the is<Param>Immutable for the CfgEntry
+    void memberImmutableBody(const CfgEntry *e, bool globalEnums);
+
     // Implements the `Set` methods for the CfgEntry
     void memberMutatorBody(const CfgEntry *e);