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#include "common.hpp"
#include "hir.hpp"
#include <main_bindings.hpp>
#include <ast/ast.hpp>
#include <ast/crate.hpp>
::HIR::Module LowerHIR_Module(const ::AST::Module& module, ::HIR::SimplePath path);
/// \brief Converts the AST into HIR format
///
/// - Removes all possibility for unexpanded macros
/// - Performs desugaring of for/if-let/while-let/...
::HIR::CratePtr LowerHIR_FromAST(::AST::Crate crate)
{
::std::unordered_map< ::std::string, MacroRules > macros;
// TODO: Extract macros from root module
for( const auto& mac : crate.m_root_module.macros() ) {
//if( mac.data.export ) {
macros.insert( ::std::make_pair( mac.name, mac.data ) );
//}
}
for( const auto& mac : crate.m_root_module.macro_imports_res() ) {
//if( mac.data->export ) {
macros.insert( ::std::make_pair( mac.name, *mac.data ) );
//}
}
auto rootmod = LowerHIR_Module( crate.m_root_module, ::HIR::SimplePath("") );
return ::HIR::CratePtr( ::HIR::Crate { mv$(rootmod), mv$(macros) } );
}
// --------------------------------------------------------------------
::HIR::GenericParams LowerHIR_GenericParams(const ::AST::GenericParams& gp)
{
throw ::std::runtime_error("TODO: LowerHIR_GenericParams");
}
::HIR::ExprPtr LowerHIR_Expr(const ::AST::Expr& e)
{
throw ::std::runtime_error("TODO: LowerHIR_Expr");
}
::HIR::TypeRef LowerHIR_Type(const ::TypeRef& e)
{
throw ::std::runtime_error("TODO: LowerHIR_Type");
}
::HIR::TypeAlias LowerHIR_TypeAlias(const ::AST::TypeAlias& ta)
{
throw ::std::runtime_error("TODO: LowerHIR_TypeAlias");
}
::HIR::Struct LowerHIR_Struct(const ::AST::Struct& ta)
{
::HIR::Struct::Data data;
throw ::std::runtime_error("TODO: LowerHIR_Struct");
return ::HIR::Struct {
LowerHIR_GenericParams(ta.params()),
mv$(data)
};
}
::HIR::Enum LowerHIR_Enum(const ::AST::Enum& f)
{
throw ::std::runtime_error("TODO: LowerHIR_Enum");
}
::HIR::Trait LowerHIR_Trait(const ::AST::Trait& f)
{
throw ::std::runtime_error("TODO: LowerHIR_Trait");
}
::HIR::Function LowerHIR_Function(const ::AST::Function& f)
{
throw ::std::runtime_error("TODO: LowerHIR_Function");
}
void _add_mod_ns_item(::HIR::Module& mod, ::std::string name, bool is_pub, ::HIR::TypeItem ti) {
mod.m_mod_items.insert( ::std::make_pair( mv$(name), ::make_unique_ptr(::HIR::VisEnt< ::HIR::TypeItem> { is_pub, mv$(ti) }) ) );
}
void _add_mod_val_item(::HIR::Module& mod, ::std::string name, bool is_pub, ::HIR::ValueItem ti) {
mod.m_value_items.insert( ::std::make_pair( mv$(name), ::make_unique_ptr(::HIR::VisEnt< ::HIR::ValueItem> { is_pub, mv$(ti) }) ) );
}
::HIR::Module LowerHIR_Module(const ::AST::Module& module, ::HIR::SimplePath path)
{
TRACE_FUNCTION_F("path = " << path);
::HIR::Module mod { };
for( const auto& item : module.items() )
{
auto item_path = path + item.name;
TU_MATCH(::AST::Item, (item.data), (e),
(None,
),
(Module,
_add_mod_ns_item( mod, item.name, item.is_pub, LowerHIR_Module(e, mv$(item_path)) );
),
(Crate,
// TODO: All 'extern crate' items should be normalised into a list in the crate root
// - If public, add a namespace import here referring to the root of the imported crate
),
(Type,
_add_mod_ns_item( mod, item.name, item.is_pub, ::HIR::TypeItem::make_TypeAlias( LowerHIR_TypeAlias(e) ) );
),
(Struct,
/// Add value reference
TU_IFLET( ::AST::StructData, e.m_data, Struct, e2,
::HIR::TypeRef ty = ::HIR::TypeRef( ::HIR::Path(mv$(item_path)) );
if( e2.ents.size() == 0 )
_add_mod_val_item( mod, item.name, item.is_pub, ::HIR::ValueItem::make_StructConstant({mv$(ty)}) );
else
_add_mod_val_item( mod, item.name, item.is_pub, ::HIR::ValueItem::make_StructConstructor({mv$(ty)}) );
)
_add_mod_ns_item( mod, item.name, item.is_pub, LowerHIR_Struct(e) );
),
(Enum,
_add_mod_ns_item( mod, item.name, item.is_pub, LowerHIR_Enum(e) );
),
(Trait,
_add_mod_ns_item( mod, item.name, item.is_pub, LowerHIR_Trait(e) );
),
(Function,
_add_mod_val_item(mod, item.name, item.is_pub, LowerHIR_Function(e));
),
(Static,
if( e.s_class() == ::AST::Static::CONST )
_add_mod_val_item(mod, item.name, item.is_pub, ::HIR::ValueItem::make_Constant(::HIR::Constant {
::HIR::GenericParams {},
LowerHIR_Type( e.type() ),
LowerHIR_Expr( e.value() )
}));
else {
_add_mod_val_item(mod, item.name, item.is_pub, ::HIR::ValueItem::make_Static(::HIR::Static {
(e.s_class() == ::AST::Static::MUT),
LowerHIR_Type( e.type() ),
LowerHIR_Expr( e.value() )
}));
}
)
)
}
for( unsigned int i = 0; i < module.anon_mods().size(); i ++ )
{
auto& submod = *module.anon_mods()[i];
::std::string name = FMT("#" << i);
auto item_path = path + name;
_add_mod_ns_item( mod, name, false, LowerHIR_Module(submod, mv$(item_path)) );
}
return mod;
}
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