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/**
** \file bind/binder.cc
** \brief Implementation for bind/binder.hh.
*/
#include <ast/all.hh>
#include <bind/binder.hh>
#include <misc/contract.hh>
namespace bind
{
/*-----------------.
| Error handling. |
`-----------------*/
/// The error handler.
const misc::error& Binder::error_get() const { return error_; }
// FIXME DONE: Some code was deleted here.
void Binder::operator()(ast::SimpleVar& e)
{
ast::VarDec* init = scoped_map_var_.get(e.name_get());
if (init == nullptr)
{
err_undef(e.location_get(), e.name_get());
return;
}
e.def_set(init);
}
void Binder::operator()(ast::CallExp& e)
{
ast::FunctionDec* init = scoped_map_fun_.get(e.name_get());
if (init == nullptr)
{
err_undef(e.location_get(), e.name_get());
return;
}
e.def_set(init);
super_type::operator()(e);
}
void Binder::operator()(ast::NameTy& e)
{
misc::symbol test_string("string");
misc::symbol test_int("int");
if (e.name_get() == test_int || e.name_get() == test_string)
{
auto init = scoped_map_ty_.get(e.name_get());
e.def_set(init);
}
else
{
auto init = scoped_map_ty_.get(e.name_get());
if (init == nullptr)
{
err_type_undef(e.location_get(), e.name_get());
return;
}
e.def_set(init);
}
}
void Binder::operator()(ast::WhileExp& e)
{
bool actual = in_a_while_;
e.test_get().accept(*this);
loop_.emplace_back(&e);
in_a_while_ = true;
begin_scope();
e.body_get().accept(*this);
end_scope();
loop_.pop_back();
in_a_while_ = actual;
}
void Binder::operator()(ast::ForExp& e)
{
bool actual = in_a_while_;
begin_scope();
in_a_while_ = true;
e.vardec_get().accept(*this);
e.hi_get().accept(*this);
loop_.emplace_back(&e);
e.body_get().accept(*this);
end_scope();
loop_.pop_back();
in_a_while_ = actual;
}
void Binder::operator()(ast::BreakExp& e)
{
if (loop_.empty() || !in_a_while_)
{
error_ << misc::error::error_type::bind;
error_ << e.location_get() << ": 'break' outside any loop\n";
}
else
{
e.def_set(loop_.back());
}
}
//Declaration of function
void Binder::operator()(ast::VarDec& e)
{
bool actual = in_a_while_;
scoped_map_var_.put(e.name_get(), &e);
in_a_while_ = false;
super_type::operator()(e);
in_a_while_ = actual;
}
void Binder::operator()(ast::FunctionChunk& e)
{
chunk_visit<ast::FunctionDec>(e);
}
void Binder::operator()(ast::TypeChunk& e)
{
chunk_visit<ast::TypeDec>(e);
}
template <class D> void Binder::chunk_visit(ast::Chunk<D>& e)
{
misc::scoped_map<const misc::symbol, D*> def = misc::scoped_map<const misc::symbol, D*>();
for (auto machala : e)
{
visit_dec_head<D>(*machala);
}
for (auto dec : e)
{
auto init = def.get(dec->name_get());
if (init == nullptr)
{
def.put(dec->name_get(), dec);
visit_dec_bod<D>(*dec);
}
else
{
err_ddec(dec->location_get(), init->location_get(), dec->name_get());
}
}
}
void Binder::operator()(ast::FunctionDec& e)
{
if (e.name_get() == "_main")
{
if (is_main_already_)
{
error_ << misc::error::error_type::bind;
error_ << "Un deuxieme _main??????\n";
return;
}
is_main_already_ = true;
if (in_a_scope_)
{
error_ << misc::error::error_type::bind;
error_ << "BRADDOCK, je vous préviens, attention ou vous mettez votre _main!!";
return;
}
}
scoped_map_fun_.put(e.name_get(), &e);
bool scope = in_a_scope_;
bool actual = in_a_while_;
in_a_while_ = false;
in_a_scope_ = true;
this->accept(e.result_get());
body_func(e);
in_a_while_ = actual;
in_a_scope_ = scope;
}
void Binder::operator()(ast::TypeDec& e)
{
scoped_map_ty_.put(e.name_get(), &e);
super_type::operator()(e);
}
} // namespace bind
|
