ENH: add Function1::NewIfPresent without a redirect type

- simplifies handling, consistent with PatchFunction1

STYLE: use Function1 NewIfPresent instead of separate found/New

src/OpenFOAM/primitives/functions/Function1/Function1/Function1.H

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2018-2022 OpenCFD Ltd.
+    Copyright (C) 2018-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -119,7 +119,11 @@ protected:
 
 public:
 
-    typedef Type returnType;
+    // Data Types
+
+        //- The return type
+        typedef Type returnType;
+
 
     //- Runtime type information
     TypeName("Function1")
@@ -196,12 +200,20 @@ public:
             const bool mandatory = true
         );
 
-        //- An optional selector
+        //- An optional selector, with fallback redirection
+        static autoPtr<Function1<Type>> NewIfPresent
+        (
+            const word& entryName,
+            const dictionary& dict,
+            const word& redirectType,
+            const objectRegistry* obrPtr = nullptr
+        );
+
+        //- An optional selector, without fallback redirection
         static autoPtr<Function1<Type>> NewIfPresent
         (
             const word& entryName,
             const dictionary& dict,
-            const word& redirectType = word::null,
             const objectRegistry* obrPtr = nullptr
         );
 

src/OpenFOAM/primitives/functions/Function1/Function1/Function1New.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2018-2021 OpenCFD Ltd.
+    Copyright (C) 2018-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -225,6 +225,20 @@ Foam::Function1<Type>::NewIfPresent
 }
 
 
+template<class Type>
+Foam::autoPtr<Foam::Function1<Type>>
+Foam::Function1<Type>::NewIfPresent
+(
+    const word& entryName,
+    const dictionary& dict,
+    const objectRegistry* obrPtr
+)
+{
+    // mandatory = false
+    return Function1<Type>::New(entryName, dict, word::null, obrPtr, false);
+}
+
+
 template<class Type>
 Foam::refPtr<Foam::Function1<Type>>
 Foam::Function1<Type>::New

src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.C

@@ -42,9 +42,9 @@ flowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF),
-    flowRate_(),
+    flowRate_(nullptr),
     rhoName_("rho"),
-    rhoInlet_(0.0),
+    rhoInlet_(0),
     volumetric_(false),
     extrapolateProfile_(false)
 {}
@@ -59,6 +59,7 @@ flowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF, dict, false),
+    flowRate_(nullptr),
     rhoName_("rho"),
     rhoInlet_(dict.getOrDefault<scalar>("rhoInlet", -VGREAT)),
     volumetric_(false),
@@ -67,23 +68,25 @@ flowRateInletVelocityFvPatchVectorField
         dict.getOrDefault<Switch>("extrapolateProfile", false)
     )
 {
-    if (dict.found("volumetricFlowRate"))
+    flowRate_ =
+        Function1<scalar>::NewIfPresent("volumetricFlowRate", dict, &db());
+
+    if (flowRate_)
     {
         volumetric_ = true;
-        flowRate_ =
-            Function1<scalar>::New("volumetricFlowRate", dict, &db());
-    }
-    else if (dict.found("massFlowRate"))
-    {
-        volumetric_ = false;
-        flowRate_ = Function1<scalar>::New("massFlowRate", dict, &db());
-        rhoName_ = dict.getOrDefault<word>("rho", "rho");
     }
     else
+    {
+        dict.readIfPresent("rho", rhoName_);
+        flowRate_ =
+            Function1<scalar>::NewIfPresent("massFlowRate", dict, &db());
+    }
+
+    if (!flowRate_)
     {
         FatalIOErrorInFunction(dict)
             << "Please supply either 'volumetricFlowRate' or"
-            << " 'massFlowRate' and 'rho'" << nl
+            << " 'massFlowRate' (optional: with 'rho')" << nl
             << exit(FatalIOError);
     }
 

src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.C

@@ -41,10 +41,10 @@ flowRateOutletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF),
-    flowRate_(),
+    flowRate_(nullptr),
-    volumetric_(false),
     rhoName_("rho"),
-    rhoOutlet_(0.0)
+    rhoOutlet_(0),
+    volumetric_(false)
 {}
 
 
@@ -57,26 +57,31 @@ flowRateOutletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF, dict, false),
-    rhoOutlet_(dict.getOrDefault<scalar>("rhoOutlet", -VGREAT))
+    flowRate_(nullptr),
+    rhoName_("rho"),
+    rhoOutlet_(dict.getOrDefault<scalar>("rhoOutlet", -VGREAT)),
+    volumetric_(false)
 {
-    if (dict.found("volumetricFlowRate"))
+    flowRate_ =
+        Function1<scalar>::NewIfPresent("volumetricFlowRate", dict, &db());
+
+    if (flowRate_)
     {
         volumetric_ = true;
-        flowRate_ =
-            Function1<scalar>::New("volumetricFlowRate", dict, &db());
-        rhoName_ = "rho";
-    }
-    else if (dict.found("massFlowRate"))
-    {
-        volumetric_ = false;
-        flowRate_ = Function1<scalar>::New("massFlowRate", dict, &db());
-        rhoName_ = dict.getOrDefault<word>("rho", "rho");
     }
     else
+    {
+        dict.readIfPresent("rho", rhoName_);
+        flowRate_ =
+            Function1<scalar>::NewIfPresent("massFlowRate", dict, &db());
+    }
+
+    if (!flowRate_)
     {
         FatalIOErrorInFunction(dict)
             << "Please supply either 'volumetricFlowRate' or"
-            << " 'massFlowRate' and 'rho'" << exit(FatalIOError);
+            << " 'massFlowRate' (optional: with 'rho')" << nl
+            << exit(FatalIOError);
     }
 
     // Value field require if mass based
@@ -105,9 +110,9 @@ flowRateOutletVelocityFvPatchVectorField
 :
     fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
     flowRate_(ptf.flowRate_.clone()),
-    volumetric_(ptf.volumetric_),
     rhoName_(ptf.rhoName_),
-    rhoOutlet_(ptf.rhoOutlet_)
+    rhoOutlet_(ptf.rhoOutlet_),
+    volumetric_(ptf.volumetric_)
 {}
 
 
@@ -119,9 +124,9 @@ flowRateOutletVelocityFvPatchVectorField
 :
     fixedValueFvPatchField<vector>(ptf),
     flowRate_(ptf.flowRate_.clone()),
-    volumetric_(ptf.volumetric_),
     rhoName_(ptf.rhoName_),
-    rhoOutlet_(ptf.rhoOutlet_)
+    rhoOutlet_(ptf.rhoOutlet_),
+    volumetric_(ptf.volumetric_)
 {}
 
 
@@ -134,9 +139,9 @@ flowRateOutletVelocityFvPatchVectorField
 :
     fixedValueFvPatchField<vector>(ptf, iF),
     flowRate_(ptf.flowRate_.clone()),
-    volumetric_(ptf.volumetric_),
     rhoName_(ptf.rhoName_),
-    rhoOutlet_(ptf.rhoOutlet_)
+    rhoOutlet_(ptf.rhoOutlet_),
+    volumetric_(ptf.volumetric_)
 {}
 
 

src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.H

@@ -111,22 +111,22 @@ class flowRateOutletVelocityFvPatchVectorField
 :
     public fixedValueFvPatchVectorField
 {
-    // Private data
+    // Private Data
 
         //- Outlet integral flow rate
         autoPtr<Function1<scalar>> flowRate_;
 
-        //- Is volumetric?
-        bool volumetric_;
-
         //- Name of the density field used to normalize the mass flux
         word rhoName_;
 
         //- Rho initialisation value (for start; if value not supplied)
         scalar rhoOutlet_;
 
+        //- Is volumetric?
+        bool volumetric_;
 
-    // Private member functions
+
+    // Private Member Functions
 
         //- Update the patch values given the appropriate density type and value
         template<class RhoType>

src/fvOptions/constraints/derived/fixedTemperatureConstraint/fixedTemperatureConstraint.C

@@ -148,7 +148,7 @@ bool Foam::fv::fixedTemperatureConstraint::read(const dictionary& dict)
 {
     if (fv::cellSetOption::read(dict))
     {
-        if (coeffs_.found(Tuniform_->name()))
+        if (Tuniform_ && coeffs_.found(Tuniform_->name(), keyType::LITERAL))
         {
             Tuniform_.reset
             (

src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeNozzleInjection/ConeNozzleInjection.C

@@ -186,7 +186,15 @@ Foam::ConeNozzleInjection<CloudType>::ConeNozzleInjection
     tetPti_(-1),
     directionVsTime_(nullptr),
     direction_(Zero),
-    omegaPtr_(nullptr),
+    omegaPtr_
+    (
+        Function1<scalar>::NewIfPresent
+        (
+            "omega",
+            this->coeffDict(),
+            &owner.mesh()
+        )
+    ),
     parcelsPerSecond_(this->coeffDict().getScalar("parcelsPerSecond")),
     flowRateProfile_
     (
@@ -247,16 +255,8 @@ Foam::ConeNozzleInjection<CloudType>::ConeNozzleInjection
     thetaInner_->userTimeToTime(time);
     thetaOuter_->userTimeToTime(time);
 
-    if (this->coeffDict().found("omega"))
+    if (omegaPtr_)
     {
-        omegaPtr_ =
-            Function1<scalar>::New
-            (
-                "omega",
-                this->coeffDict(),
-                &owner.mesh()
-            );
-
         omegaPtr_->userTimeToTime(time);
     }
 

src/meshTools/AMIInterpolation/patches/cyclicACMI/cyclicACMIPolyPatch/cyclicACMIPolyPatch.C

@@ -603,12 +603,7 @@ Foam::cyclicACMIPolyPatch::cyclicACMIPolyPatch
     nonOverlapPatchID_(-1),
     srcMask_(),
     tgtMask_(),
-    srcScalePtr_
+    srcScalePtr_(PatchFunction1<scalar>::NewIfPresent(*this, "scale", dict)),
-    (
-        dict.found("scale")
-      ? PatchFunction1<scalar>::New(*this, "scale", dict)
-      : nullptr
-    ),
     AMITime_
     (
         IOobject

src/meshTools/PatchFunction1/PatchFunction1/PatchFunction1.H

@@ -102,7 +102,11 @@ protected:
 
 public:
 
-    typedef Field<Type> returnType;
+    // Data Types
+
+        //- The return type is a field of values
+        typedef Field<Type> returnType;
+
 
     //- Runtime type information
     TypeName("PatchFunction1")