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// Copyright (C) 2020-2024 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC 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, or (at your option) any later
// version.
// GCC 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 GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include "rust-hir-type-check.h"
#include "rust-tyty.h"
namespace Rust {
namespace TyTy {
TyVar::TyVar (HirId ref) : ref (ref)
{
// ensure this reference is defined within the context
auto context = Resolver::TypeCheckContext::get ();
BaseType *lookup = nullptr;
bool ok = context->lookup_type (ref, &lookup);
rust_assert (ok);
}
BaseType *
TyVar::get_tyty () const
{
auto context = Resolver::TypeCheckContext::get ();
BaseType *lookup = nullptr;
bool ok = context->lookup_type (ref, &lookup);
rust_assert (ok);
return lookup;
}
TyVar
TyVar::get_implicit_infer_var (location_t locus)
{
auto mappings = Analysis::Mappings::get ();
auto context = Resolver::TypeCheckContext::get ();
InferType *infer = new InferType (mappings->get_next_hir_id (),
InferType::InferTypeKind::GENERAL,
InferType::TypeHint::Default (), locus);
context->insert_type (Analysis::NodeMapping (mappings->get_current_crate (),
UNKNOWN_NODEID,
infer->get_ref (),
UNKNOWN_LOCAL_DEFID),
infer);
mappings->insert_location (infer->get_ref (), locus);
return TyVar (infer->get_ref ());
}
TyVar
TyVar::subst_covariant_var (TyTy::BaseType *orig, TyTy::BaseType *subst)
{
if (orig->get_kind () != TyTy::TypeKind::PARAM)
return TyVar (subst->get_ty_ref ());
else if (subst->get_kind () == TyTy::TypeKind::PARAM)
{
TyTy::ParamType *p = static_cast<TyTy::ParamType *> (subst);
if (p->resolve ()->get_kind () == TyTy::TypeKind::PARAM)
{
return TyVar (subst->get_ty_ref ());
}
}
return TyVar (subst->get_ref ());
}
TyVar
TyVar::clone () const
{
TyTy::BaseType *c = get_tyty ()->clone ();
return TyVar (c->get_ref ());
}
TyVar
TyVar::monomorphized_clone () const
{
auto mappings = Analysis::Mappings::get ();
auto context = Resolver::TypeCheckContext::get ();
// this needs a new hirid
TyTy::BaseType *c = get_tyty ()->monomorphized_clone ();
c->set_ref (mappings->get_next_hir_id ());
// insert it
context->insert_type (Analysis::NodeMapping (mappings->get_current_crate (),
UNKNOWN_NODEID, c->get_ref (),
UNKNOWN_LOCAL_DEFID),
c);
return TyVar (c->get_ref ());
}
TyWithLocation::TyWithLocation (BaseType *ty, location_t locus)
: ty (ty), locus (locus)
{}
TyWithLocation::TyWithLocation (BaseType *ty) : ty (ty)
{
auto mappings = Analysis::Mappings::get ();
locus = mappings->lookup_location (ty->get_ref ());
}
} // namespace TyTy
} // namespace Rust
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