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/* Elna frontend specific diagnostic routines.
Copyright (C) 2025 Free Software Foundation, Inc.
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 "elna/gcc/elna-diagnostic.h"
#include "elna/gcc/elna-tree.h"
#include "elna/gcc/elna1.h"
namespace elna::gcc
{
linemap_guard::linemap_guard(const char *filename)
{
linemap_add(line_table, LC_ENTER, 0, filename, 1);
}
linemap_guard::~linemap_guard()
{
linemap_add(line_table, LC_LEAVE, 0, NULL, 0);
}
location_t get_location(const frontend::position *position)
{
linemap_line_start(line_table, position->line, 0);
return linemap_position_for_column(line_table, position->column);
}
std::string print_aggregate_name(tree type, const std::string& kind_name)
{
if (TYPE_IDENTIFIER(type) == NULL_TREE)
{
return kind_name;
}
else
{
return std::string(IDENTIFIER_POINTER(TYPE_IDENTIFIER(type)));
}
}
std::string print_type(tree type)
{
gcc_assert(TYPE_P(type));
tree unqualified_type = get_qualified_type(type, TYPE_UNQUALIFIED);
tree_code code = TREE_CODE(type);
if (unqualified_type == elna_int_type_node)
{
return "Int";
}
else if (unqualified_type == elna_word_type_node)
{
return "Word";
}
else if (unqualified_type == elna_bool_type_node)
{
return "Bool";
}
else if (unqualified_type == elna_pointer_type_node)
{
return "Pointer";
}
else if (unqualified_type == elna_float_type_node)
{
return "Float";
}
else if (unqualified_type == elna_char_type_node)
{
return "Char";
}
else if (unqualified_type == elna_string_type_node)
{
return "String";
}
else if (is_void_type(unqualified_type)) // For procedures without a return type.
{
return "()";
}
else if (POINTER_TYPE_P(unqualified_type))
{
tree pointer_target_type = TREE_TYPE(type);
if (TREE_CODE(pointer_target_type) == FUNCTION_TYPE)
{
return print_type(pointer_target_type);
}
else
{
return std::string("^" + print_type(pointer_target_type));
}
}
else if (code == FUNCTION_TYPE)
{
std::string output = "proc(";
tree parameter_type = TYPE_ARG_TYPES(type);
while (TREE_VALUE(parameter_type) != void_type_node)
{
output += print_type(TREE_VALUE(parameter_type));
parameter_type = TREE_CHAIN(parameter_type);
if (TREE_VALUE(parameter_type) == void_type_node)
{
break;
}
else
{
output += ", ";
}
}
output += ')';
tree return_type = TREE_TYPE(type);
if (!is_void_type(return_type))
{
output += " -> " + print_type(return_type);
}
return output;
}
else if (code == ARRAY_TYPE)
{
return "array";
}
else if (code == RECORD_TYPE)
{
return print_aggregate_name(unqualified_type, "record");
}
else if (code == UNION_TYPE)
{
return print_aggregate_name(unqualified_type, "union");
}
else if (code == ENUMERAL_TYPE)
{
return print_aggregate_name(unqualified_type, "enumeration");
}
else
{
return "<<unknown-type>>";
}
gcc_unreachable();
}
void report_errors(const std::deque<std::unique_ptr<frontend::error>>& errors)
{
for (const auto& error : errors)
{
location_t gcc_location{ UNKNOWN_LOCATION };
if (error->position.line != 0 || error->position.column != 0)
{
gcc_location = elna::gcc::get_location(&error->position);
}
error_at(gcc_location, error->what().c_str());
}
}
}
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