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// Copyright (C) 2020 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-linemap.h"
#include "rust-backend.h"
#include "rust-compile-resolve-path.h"
#include "rust-compile-item.h"
namespace Rust {
namespace Compile {
void
ResolvePath::visit (HIR::PathInExpression &expr)
{
// need to look up the reference for this identifier
NodeId ref_node_id;
if (!ctx->get_resolver ()->lookup_resolved_name (
expr.get_mappings ().get_nodeid (), &ref_node_id))
{
rust_fatal_error (expr.get_locus (), "failed to look up resolved name");
return;
}
printf ("PATHIN have ast node id %u ref %u for expr [%s]\n",
expr.get_mappings ().get_nodeid (), ref_node_id,
expr.as_string ().c_str ());
HirId ref;
if (!ctx->get_mappings ()->lookup_node_to_hir (
expr.get_mappings ().get_crate_num (), ref_node_id, &ref))
{
rust_fatal_error (expr.get_locus (), "reverse lookup failure");
return;
}
// assumes paths are functions for now
Bfunction *fn;
if (!ctx->lookup_function_decl (ref, &fn))
{
printf (
"path failed to lookup function attempting to forward resolve!\n");
// this might fail because its a forward decl so we can attempt to
// resolve it now
HIR::Item *resolved_item = ctx->get_mappings ()->lookup_hir_item (
expr.get_mappings ().get_crate_num (), ref);
if (resolved_item == nullptr)
{
rust_fatal_error (expr.get_locus (), "failed to lookup forward decl");
return;
}
CompileItem::compile (resolved_item, ctx);
if (!ctx->lookup_function_decl (ref, &fn))
{
rust_fatal_error (expr.get_locus (), "forward decl was not compiled");
return;
}
}
resolved
= ctx->get_backend ()->function_code_expression (fn, expr.get_locus ());
}
} // namespace Compile
} // namespace Rust
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