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https://sourceware.org/git/binutils-gdb.git
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b2bc564fe8
The new DWARF index code works by keeping names pre-split. That is,
rather than storing a symbol name like "a:🅱️:c", the names "a", "b",
and "c" will be stored separately.
This patch introduces some helper code to split a full name into its
components.
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/* Split a symbol name.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "split-name.h"
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#include "cp-support.h"
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/* See split-name.h. */
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std::vector<gdb::string_view>
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split_name (const char *name, split_style style)
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{
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std::vector<gdb::string_view> result;
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unsigned int previous_len = 0;
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switch (style)
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{
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case split_style::CXX:
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for (unsigned int current_len = cp_find_first_component (name);
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name[current_len] != '\0';
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current_len += cp_find_first_component (name + current_len))
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{
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gdb_assert (name[current_len] == ':');
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result.emplace_back (&name[previous_len],
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current_len - previous_len);
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/* Skip the '::'. */
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current_len += 2;
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previous_len = current_len;
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}
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break;
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case split_style::UNDERSCORE:
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/* Handle the Ada encoded (aka mangled) form here. */
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for (const char *iter = strstr (name, "__");
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iter != nullptr;
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iter = strstr (iter, "__"))
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{
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result.emplace_back (&name[previous_len],
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iter - &name[previous_len]);
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iter += 2;
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previous_len = iter - name;
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}
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break;
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case split_style::DOT:
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/* D and Go-style names. */
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for (const char *iter = strchr (name, '.');
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iter != nullptr;
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iter = strchr (iter, '.'))
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{
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result.emplace_back (&name[previous_len],
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iter - &name[previous_len]);
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++iter;
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previous_len = iter - name;
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}
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break;
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default:
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break;
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}
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result.emplace_back (&name[previous_len]);
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return result;
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}
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