diff options
Diffstat (limited to 'write.cpp')
| -rw-r--r-- | write.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/write.cpp b/write.cpp new file mode 100644 index 0000000..b5784ab --- /dev/null +++ b/write.cpp @@ -0,0 +1,55 @@ +/* Tuplr Serialisation + * Copyright (C) 2008-2009 David Robillard <dave@drobilla.net> + * + * Tuplr is free software: you can redistribute it and/or modify it under + * the terms of the GNU Affero General Public License as published by the + * Free Software Foundation, either version 3 of the License, or (at your + * option) any later version. + * + * Tuplr 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 Affero General + * Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with Tuplr. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "tuplr.hpp" + +ostream& +operator<<(ostream& out, const AST* ast) +{ +#define TRY_WRITE_LITERAL(T) \ + const ASTLiteral<T>* lit ## T = dynamic_cast<const ASTLiteral<T>*>(ast); \ + if (lit ## T) \ + return out << (lit ## T)->val; + + TRY_WRITE_LITERAL(int32_t); + TRY_WRITE_LITERAL(float); + TRY_WRITE_LITERAL(bool); + + const ASTSymbol* sym = dynamic_cast<const ASTSymbol*>(ast); + if (sym) + return out << sym->cppstr; + + const AType* type = dynamic_cast<const AType*>(ast); + if (type) { + switch (type->kind) { + case AType::VAR: return out << "?" << type->id; + case AType::PRIM: return out << type->at(0); + case AType::EXPR: break; // will catch Tuple case below + } + } + + const ASTTuple* tup = dynamic_cast<const ASTTuple*>(ast); + if (tup) { + out << "("; + for (size_t i = 0; i != tup->size(); ++i) + out << tup->at(i) << ((i != tup->size() - 1) ? " " : ""); + return out << ")"; + } + + return out << "?"; +} + |