ENH: place more patch field attributes under template invariant Base

- attributes such as assignable(), coupled() etc

- common patchField types: calculatedType(), zeroGradientType() etc.
  This simplifies reference to these types without actually needing a
  typed patchField version.

ENH: add some basic patchField types to fieldTypes namespace

- allows more general use of the names

ENH: set extrapolated/calculated from patchInternalField directly

- avoids intermediate tmp

applications/solvers/compressible/rhoCentralFoam/BCs/T/smoluchowskiJumpTFvPatchScalarField.C

@@ -105,7 +105,8 @@ Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
 
     if (!this->readValueEntry(dict))
     {
-        fvPatchField<scalar>::operator=(patchInternalField());
+        // Fallback: set to the internal field
+        fvPatchField<scalar>::patchInternalField(*this);
     }
 
     refValue() = *this;

applications/solvers/stressAnalysis/solidDisplacementFoam/tractionDisplacement/tractionDisplacementFvPatchVectorField.C

@@ -47,7 +47,7 @@ tractionDisplacementFvPatchVectorField
     traction_(p.size(), Zero),
     pressure_(p.size(), Zero)
 {
-    fvPatchVectorField::operator=(patchInternalField());
+    fvPatchField<vector>::patchInternalField(*this);
     gradient() = Zero;
 }
 
@@ -79,7 +79,7 @@ tractionDisplacementFvPatchVectorField
     traction_("traction", dict, p.size()),
     pressure_("pressure", dict, p.size())
 {
-    fvPatchVectorField::operator=(patchInternalField());
+    fvPatchField<vector>::patchInternalField(*this);
     gradient() = Zero;
 }
 

applications/solvers/stressAnalysis/solidEquilibriumDisplacementFoam/tractionDisplacementCorrection/tractionDisplacementCorrectionFvPatchVectorField.C

@@ -47,7 +47,7 @@ tractionDisplacementCorrectionFvPatchVectorField
     traction_(p.size(), Zero),
     pressure_(p.size(), Zero)
 {
-    fvPatchVectorField::operator=(patchInternalField());
+    fvPatchField<vector>::patchInternalField(*this);
     gradient() = Zero;
 }
 
@@ -79,7 +79,7 @@ tractionDisplacementCorrectionFvPatchVectorField
     traction_("traction", dict, p.size()),
     pressure_("pressure", dict, p.size())
 {
-    fvPatchVectorField::operator=(patchInternalField());
+    fvPatchField<vector>::patchInternalField(*this);
     gradient() = Zero;
 }
 

applications/test/pointField/Test-PointField.C

@@ -53,13 +53,13 @@ int main(int argc, char *argv[])
         (
             "U",
             runTime.timeName(),
-            mesh,
+            pMesh.thisDb(),
             IOobject::NO_READ,
-            IOobject::AUTO_WRITE
+            IOobject::NO_WRITE
         ),
         pMesh,
-        dimensionedVector(dimLength, Zero),
-        pointPatchVectorField::calculatedType()
+        dimensionedVector(dimLength, Zero)
+        // pointPatchFieldBase::calculatedType()
     );
 
     pointVectorField V(U + 2*U);