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/* Concrete classes for selftests involving diagnostic paths.
Copyright (C) 2019-2025 Free Software Foundation, Inc.
Contributed by David Malcolm <dmalcolm@redhat.com>
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/>. */
#ifndef GCC_DIAGNOSTICS_SELFTEST_PATHS_H
#define GCC_DIAGNOSTICS_SELFTEST_PATHS_H
#include "diagnostics/paths.h"
#include "diagnostics/selftest-logical-locations.h"
/* The selftest code should entirely disappear in a production
configuration, hence we guard all of it with #if CHECKING_P. */
#if CHECKING_P
namespace diagnostics {
namespace paths {
namespace selftest {
/* Concrete subclasses of the abstract base classes
declared in diagnostic-path.h for use in selftests.
This code should have no dependency on "tree". */
/* An implementation of diagnostics::paths::event. */
class test_event : public event
{
public:
using logical_location = logical_locations::key;
using thread_id_t = paths::thread_id_t;
test_event (location_t loc,
logical_location logical_loc,
int depth,
const char *desc,
thread_id_t thread_id = 0);
~test_event ();
location_t get_location () const final override { return m_loc; }
int get_stack_depth () const final override { return m_depth; }
void print_desc (pretty_printer &pp) const final override
{
pp_string (&pp, m_desc);
}
logical_location get_logical_location () const final override
{
return m_logical_loc;
}
meaning get_meaning () const final override
{
return meaning ();
}
bool connect_to_next_event_p () const final override
{
return m_connected_to_next_event;
}
thread_id_t get_thread_id () const final override
{
return m_thread_id;
}
void connect_to_next_event ()
{
m_connected_to_next_event = true;
}
private:
location_t m_loc;
logical_location m_logical_loc;
int m_depth;
char *m_desc; // has been formatted; doesn't get i18n-ed
bool m_connected_to_next_event;
thread_id_t m_thread_id;
};
/* A simple implementation of diagnostics::paths::thread. */
class test_thread : public thread
{
public:
test_thread (const char *name) : m_name (name) {}
label_text get_name (bool) const final override
{
return label_text::borrow (m_name);
}
private:
const char *m_name; // has been i18n-ed and formatted
};
/* A concrete subclass of diagnostics::paths::path for implementing selftests
- a vector of test_event instances
- adds member functions for adding test event
- does no translation of its events
- has no dependency on "tree". */
class test_path : public path
{
public:
test_path (logical_locations::selftest::test_manager &logical_loc_mgr,
pretty_printer *event_pp);
unsigned num_events () const final override;
const event & get_event (int idx) const final override;
unsigned num_threads () const final override;
const thread &
get_thread (thread_id_t) const final override;
bool
same_function_p (int event_idx_a,
int event_idx_b) const final override;
thread_id_t add_thread (const char *name);
event_id_t add_event (location_t loc, const char *funcname, int depth,
const char *fmt, ...)
ATTRIBUTE_GCC_DIAG(5,6);
event_id_t
add_thread_event (thread_id_t thread_id,
location_t loc, const char *funcname, int depth,
const char *fmt, ...)
ATTRIBUTE_GCC_DIAG(6,7);
void connect_to_next_event ();
void add_entry (const char *callee_name, int stack_depth,
thread_id_t thread_id = 0);
void add_return (const char *caller_name, int stack_depth,
thread_id_t thread_id = 0);
void add_call (const char *caller_name,
int caller_stack_depth,
const char *callee_name,
thread_id_t thread_id = 0);
private:
logical_locations::key
logical_location_from_funcname (const char *funcname);
logical_locations::selftest::test_manager &m_test_logical_loc_mgr;
auto_delete_vec<test_thread> m_threads;
auto_delete_vec<test_event> m_events;
/* (for use by add_event). */
pretty_printer *m_event_pp;
};
} // namespace diagnostics::paths::selftest
} // namespace diagnostics::paths
} // namespace diagnostics
#endif /* #if CHECKING_P */
#endif /* ! GCC_DIAGNOSTICS_SELFTEST_PATHS_H */
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