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pacciani/CppEmitter.hpp
Stefano Sanfilippo b0a01d2fb7 Decouple AST nodes from representation.
1. adding getters to all node properties.
2. extracting an Emitter interface.
3. moving all C++ codegen features to a CppEmitter.

All list template specializations typedefs have been removed for
increased readability.

A dependency on Boost is introduced for boost::optional,
which is required in the AST getters API.
2015-03-05 01:16:40 +01:00

94 lines
3.3 KiB
C++

#ifndef CPPEMITTER_HPP
#define CPPEMITTER_HPP
/*
* Monicelli: an esoteric language compiler
*
* Copyright (C) 2014 Stefano Sanfilippo
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Emitter.hpp"
#include <iostream>
namespace monicelli {
class CppEmitter: public Emitter {
public:
CppEmitter(std::ostream *stream): stream(*stream), indent_chars(0) {}
virtual void emit(Id const&) override;
virtual void emit(Integer const&) override;
virtual void emit(Float const&) override;
virtual void emit(Return const&) override;
virtual void emit(Loop const&) override;
virtual void emit(VarDeclaration const&) override;
virtual void emit(Assignment const&) override;
virtual void emit(Print const&) override;
virtual void emit(Input const&) override;
virtual void emit(Abort const&) override;
virtual void emit(Assert const&) override;
virtual void emit(FunctionCall const&) override;
virtual void emit(BranchCase const&) override;
virtual void emit(Branch const&) override;
virtual void emit(Main const&) override;
virtual void emit(Function const&) override;
virtual void emit(Module const&) override;
virtual void emit(Program const&) override;
virtual void emit(ExpLt const&) override;
virtual void emit(ExpGt const&) override;
virtual void emit(ExpLte const&) override;
virtual void emit(ExpGte const&) override;
virtual void emit(ExpPlus const&) override;
virtual void emit(ExpMinus const&) override;
virtual void emit(ExpTimes const&) override;
virtual void emit(ExpDiv const&) override;
virtual void emit(ExpShl const&) override;
virtual void emit(ExpShr const&) override;
virtual void emit(SemiExpEq const&) override;
virtual void emit(SemiExpLt const&) override;
virtual void emit(SemiExpGt const&) override;
virtual void emit(SemiExpLte const&) override;
virtual void emit(SemiExpGte const&) override;
virtual void emit(SemiExpPlus const&) override;
virtual void emit(SemiExpMinus const&) override;
virtual void emit(SemiExpTimes const&) override;
virtual void emit(SemiExpDiv const&) override;
virtual void emit(SemiExpShl const&) override;
virtual void emit(SemiExpShr const&) override;
private:
void emitIndent();
void emitExp(char const* symbol, ExpNode const& node);
void emitSemiExp(char const* symbol, SemiExpNode const& node);
void emitFunctionSignature(Function const& function);
void emitFunctionParams(PointerList<FunArg> const& funargs);
void emitFunctionArglist(PointerList<Expression> const& args);
void emitStatements(PointerList<Statement> const& node);
void indent();
void dedent();
std::ostream &stream;
int indent_chars;
};
}
#endif