ENH: support file-scope 'localCode' in dynamicCode

applications/test/codeStream/codeStreamDict1

@@ -33,10 +33,20 @@ writeInterval   #codeStream
         -I$(LIB_SRC)/finiteVolume/lnInclude
     #};
 
+    localCode
+    #{
+        static int someCode()
+        {
+            Info<<"called someCode\n";
+            return 10;
+        }
+    #};
+
     code
     #{
         label interval = ($endIter - $begIter);
-        label nDumps = $nDumps;
+        // label nDumps = $nDumps;
+        label nDumps = someCode();
         os  << (interval / nDumps);
     #};
 };

etc/codeTemplates/dynamicCode/codeStreamTemplate.C

@@ -34,22 +34,37 @@ Description
 ${codeInclude}
 //}}} end codeInclude
 
-using namespace Foam;
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * Local Functions * * * * * * * * * * * * * * //
+
+//{{{ begin localCode
+${localCode}
+//}}} end localCode
+
+
 // * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
 extern "C"
 {
-    void ${typeName}(Ostream& os, const dictionary& dict)
+    void ${typeName}
+    (
+        Ostream& os,
+        const dictionary& dict
+    )
     {
 //{{{ begin code
-        ${code};
+        ${code}
 //}}} end code
     }
 }
 
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+} // End namespace Foam
+
 // ************************************************************************* //

etc/codeTemplates/dynamicCode/fixedValueFvPatchScalarFieldTemplate.C

@@ -38,6 +38,13 @@ ${codeInclude}
 namespace Foam
 {
 
+// * * * * * * * * * * * * * * * Local Functions * * * * * * * * * * * * * * //
+
+//{{{ begin localCode
+${localCode}
+//}}} end localCode
+
+
 // * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
 extern "C"
@@ -188,7 +195,7 @@ void ${typeName}FixedValueFvPatchScalarField::updateCoeffs()
     }
 
 //{{{ begin code
-    ${code};
+    ${code}
 //}}} end code
 
     fixedValueFvPatchScalarField::updateCoeffs();

src/OpenFOAM/db/dynamicLibrary/dynamicCode/dynamicCode.C

@@ -373,6 +373,7 @@ void Foam::dynamicCode::setFilterContext
     const dynamicCodeContext& context
 )
 {
+    filterVars_.set("localCode", context.localCode());
     filterVars_.set("code", context.code());
     filterVars_.set("codeInclude", context.include());
     filterVars_.set("SHA1sum", context.sha1().str());

src/OpenFOAM/db/dynamicLibrary/dynamicCode/dynamicCodeContext.C

@@ -35,6 +35,7 @@ Foam::dynamicCodeContext::dynamicCodeContext(const dictionary& dict)
 :
     dict_(dict),
     code_(stringOps::trim(dict["code"])),
+    localCode_(),
     include_(),
     options_()
 {
@@ -45,6 +46,13 @@ Foam::dynamicCodeContext::dynamicCodeContext(const dictionary& dict)
     // - necessary for compilation options, convenient for includes
     // and body.
 
+    // optional
+    if (dict.found("localCode"))
+    {
+        localCode_ = stringOps::trim(dict["localCode"]);
+        stringOps::inplaceExpand(localCode_, dict);
+    }
+
     // optional
     if (dict.found("codeInclude"))
     {
@@ -59,9 +67,9 @@ Foam::dynamicCodeContext::dynamicCodeContext(const dictionary& dict)
         stringOps::inplaceExpand(options_, dict);
     }
 
-    // calculate SHA1 digest from include, options, code
+    // calculate SHA1 digest from include, options, localCode, code
     OSHA1stream os;
-    os  << include_ << options_ << code_;
+    os  << include_ << options_ << localCode_ << code_;
     sha1_ = os.digest();
 }
 

src/OpenFOAM/db/dynamicLibrary/dynamicCode/dynamicCodeContext.H

@@ -57,6 +57,9 @@ class dynamicCodeContext
         //- Mandatory "code" entry
         string code_;
 
+        //- Optional "localCode" entry
+        string localCode_;
+
         //- Optional "codeInclude" entry
         string include_;
 
@@ -99,6 +102,12 @@ public:
             return code_;
         }
 
+        //- Return the local (file-scope) code
+        const string& localCode() const
+        {
+            return localCode_;
+        }
+
         //- Return SHA1 digest calculated from include, options, code
         const SHA1Digest& sha1() const
         {