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/*
* Build up a name index in all modules (optimising lookups in later stages)
*/
#include <ast/ast.hpp>
#include <ast/crate.hpp>
#include <main_bindings.hpp>
void _add_item(AST::Module& mod, bool is_type, const ::std::string& name, bool is_pub, ::AST::PathBinding ir, bool error_on_collision)
{
DEBUG("Add " << (is_type ? "type" : "value") << " item '" << name << "': " << ir);
auto& list = (is_type ? mod.m_type_items : mod.m_value_items);
if( false == list.insert( ::std::make_pair(name, ::std::make_pair(is_pub, mv$(ir))) ).second )
{
if( error_on_collision )
{
ERROR(Span(), E0000, "Duplicate definition of name '" << name << "' in " << (is_type ? "type" : "value") << " scope (" << mod.path() << ")");
}
else
{
DEBUG("Name collision " << mod.path() << ", ignored");
}
}
}
void _add_item_type(AST::Module& mod, const ::std::string& name, bool is_pub, ::AST::PathBinding ir, bool error_on_collision=true)
{
_add_item(mod, true, name, is_pub, mv$(ir), error_on_collision);
}
void _add_item_value(AST::Module& mod, const ::std::string& name, bool is_pub, ::AST::PathBinding ir, bool error_on_collision=true)
{
_add_item(mod, false, name, is_pub, mv$(ir), error_on_collision);
}
void Resolve_Index_Module(AST::Module& mod)
{
TRACE_FUNCTION_F("mod = " << mod.path());
for( const auto& i : mod.items() )
{
TU_MATCH(AST::Item, (i.data), (e),
(None,
),
// - Types/modules only
(Module,
_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_Module({&e}));
),
(Crate,
TODO(Span(), "Crate in Resolve_Index_Module");
//_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_Crate(e));
),
(Enum,
_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_Enum({&e}));
),
(Trait,
_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_Trait({&e}));
),
(Type,
_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_TypeAlias({&e}));
),
// - Mixed
(Struct,
_add_item_type(mod, i.name, i.is_pub, ::AST::PathBinding::make_Struct({&e}));
if( e.m_data.is_Struct() ) {
_add_item_value(mod, i.name, i.is_pub, ::AST::PathBinding::make_Struct({&e}));
}
),
// - Values only
(Function,
_add_item_value(mod, i.name, i.is_pub, ::AST::PathBinding::make_Function({&e}));
),
(Static,
_add_item_value(mod, i.name, i.is_pub, ::AST::PathBinding::make_Static({&e}));
)
)
}
// Named imports
for( const auto& i : mod.imports() )
{
if( i.name != "" )
{
const auto& sp = i.data.sp;
const auto& b = i.data.path.binding();
TU_MATCH(::AST::PathBinding, (b), (e),
(Unbound,
BUG(sp, "Import left unbound");
),
(Variable,
BUG(sp, "Import was bound to variable");
),
(TypeParameter,
BUG(sp, "Import was bound to type parameter");
),
(TraitMethod,
BUG(sp, "Import was bound to trait method");
),
(StructMethod,
BUG(sp, "Import was bound to struct method");
),
(Module, _add_item_type(mod, i.name, i.is_pub, b.clone()); ),
//(Crate, _add_item_type(mod, i.name, i.is_pub, b.clone()); ),
(Enum, _add_item_type(mod, i.name, i.is_pub, b.clone()); ),
(Trait, _add_item_type(mod, i.name, i.is_pub, b.clone()); ),
(TypeAlias, _add_item_type(mod, i.name, i.is_pub, b.clone()); ),
(Struct,
_add_item_type(mod, i.name, i.is_pub, b.clone());
),
(Static , _add_item_value(mod, i.name, i.is_pub, b.clone()); ),
(Function, _add_item_value(mod, i.name, i.is_pub, b.clone()); ),
(EnumVar , _add_item_value(mod, i.name, i.is_pub, b.clone()); )
)
}
}
mod.m_index_populated = 1;
// Glob/wildcard imports
for( const auto& i : mod.imports() )
{
if( i.name == "" )
{
const auto& sp = i.data.sp;
const auto& b = i.data.path.binding();
TU_MATCH_DEF(::AST::PathBinding, (b), (e),
(
BUG(sp, "Glob import of invalid type encountered");
),
(Unbound,
BUG(sp, "Import left unbound");
),
(Variable,
BUG(sp, "Import was bound to variable");
),
(TypeParameter,
BUG(sp, "Import was bound to type parameter");
),
(TraitMethod,
BUG(sp, "Import was bound to trait method");
),
(StructMethod,
BUG(sp, "Import was bound to struct method");
),
(Module,
if( e.module_ == &mod ) {
ERROR(sp, E0000, "Glob import of self");
}
// 1. Begin indexing of this module if it is not already indexed
if( !e.module_->m_index_populated )
{
TODO(sp, "Handle glob import of module not yet indexed");
//Resolve_Index_Module( *e.module_ );
}
for(const auto& vi : e.module_->m_type_items) {
if( vi.second.first ) {
_add_item_type( mod, vi.first, i.is_pub, vi.second.second.clone(), false );
}
}
for(const auto& vi : e.module_->m_value_items) {
if( vi.second.first ) {
_add_item_value( mod, vi.first, i.is_pub, vi.second.second.clone(), false );
}
}
),
(Enum,
unsigned int idx = 0;
for( const auto& ev : e.enum_->variants() ) {
if( ev.m_data.is_Struct() ) {
_add_item_type ( mod, ev.m_name, i.is_pub, ::AST::PathBinding::make_EnumVar({e.enum_, idx}), false );
}
else {
_add_item_value( mod, ev.m_name, i.is_pub, ::AST::PathBinding::make_EnumVar({e.enum_, idx}), false );
}
idx += 1;
}
)
)
}
}
mod.m_index_populated = 2;
// Handle child modules
for( auto& i : mod.items() )
{
TU_MATCH_DEF(AST::Item, (i.data), (e),
(
),
(Module,
Resolve_Index_Module(e);
)
)
}
}
void Resolve_Index(AST::Crate& crate)
{
Resolve_Index_Module(crate.m_root_module);
}
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