| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2026 OpenFOAM Foundation | |
| \\/ M anipulation | | |
| ------------------------------------------------------------------------------- | |
| License | |
| This file is part of OpenFOAM. | |
| OpenFOAM is free software: you can redistribute it and/or modify it | |
| under the terms of the GNU General Public License as published by | |
| the Free Software Foundation, either version 3 of the License, or | |
| (at your option) any later version. | |
| OpenFOAM is distributed in the hope that it will be useful, but WITHOUT | |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| for more details. | |
| You should have received a copy of the GNU General Public License | |
| along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. | |
| Classes | |
| Foam::expression::Operation | |
| Foam::expression::Name | |
| Description | |
| Classes for constructing string representations of expressions. | |
| The Foam::expression::Operation trait provides the base operator type and | |
| its precedence for a given expression. | |
| The Foam::expression::Name class constructs the actual name. These are | |
| specialised for unary and binary operations in order to construct compound | |
| names. Foam::expression::Name implements a streamed output for any | |
| non-expression and a type and a pointer address for any expressionable | |
| container. This should be specialised for any container type for which a | |
| user-readable name is available. | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace expression | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class Operation Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| template<class Expression> | |
| struct Operation | |
| { | |
| using type = void; | |
| static const signed char precedence = | |
| std::numeric_limits<signed char>::min(); | |
| }; | |
| /*---------------------------------------------------------------------------*\ | |
| Class Name Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| template<class Expression, class = void> | |
| struct Name; | |
| template<class Expression> | |
| struct Name<Expression, EnableIfNotExpressionable<Expression>> | |
| { | |
| static word& append(word& name, const Expression& e) | |
| { | |
| OStringStream oss; | |
| oss << e; | |
| return name.append(oss.str()); | |
| } | |
| static word value(const Expression& e) | |
| { | |
| word name; | |
| return append(name, e); | |
| } | |
| }; | |
| template<class Expression> | |
| struct Name<Expression, EnableIfExpressionable<Expression>> | |
| { | |
| static word& append(word& name, const Expression& f) | |
| { | |
| std::ostringstream oss; | |
| oss << std::hex << reinterpret_cast<uintptr_t>(&(*f.begin())); | |
| return name.append | |
| ( | |
| '[', typeName<Expression, word>(), ':', oss.str(), ']' | |
| ); | |
| } | |
| static word value(const Expression& e) | |
| { | |
| word name; | |
| return append(name, e); | |
| } | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| //- Function to get the name of an expression. More convenient than using the | |
| // classes above directly, as the expression type is deduced. | |
| template<class Expression> | |
| auto name(const Expression& e) | |
| { | |
| return Name<Expression>::value(e); | |
| } | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace expression | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |