17589970077-2502

Committed 09 Sep 2025 05:00PM UTC coverage: 65.196% (-5.0%) from 70.225%

Build # 17589970077-2502

Build Type

push

github

Committed by

tstack

Commit Message

[format] add fields for source file/line

Knowing the source file/line context in a log
message can help find log messages when using
log2src.

Run Details

56 of 70 new or added lines in 2 files covered. (80.0%)

13954 existing lines in 210 files now uncovered.

45516 of 69814 relevant lines covered (65.2%)

404154.37 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

42.86

/src/base/func_util.hh

/**
 * Copyright (c) 2020, Timothy Stack
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * * Neither the name of Timothy Stack nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef lnav_func_util_hh
#define lnav_func_util_hh

#include <functional>
#include <utility>

#include "progress.hh"

template<typename F, typename FrontArg>
decltype(auto)
bind_mem(F&& f, FrontArg&& frontArg)
{
    return [f = std::forward<F>(f),
            frontArg = std::forward<FrontArg>(frontArg)](auto&&... backArgs) {
        return (frontArg->*f)(std::forward<decltype(backArgs)>(backArgs)...);
    };
}

struct noop_func {
    struct anything {
        template<class T>
        operator T()
        {
            return {};
        }
        // optional reference support.  Somewhat evil.
        template<class T>
        operator T&() const
        {
            static T t{};
            return t;
        }
    };
    template<class... Args>
    anything operator()(Args&&...) const
    {
        return {};
    }
};

namespace lnav::func {

enum class op_type {
    blocking,
    interactive,
};

class scoped_cb {
public:
    using callback_type = std::function<progress_result_t(op_type)>;

    class guard {
    public:
        explicit guard(scoped_cb* owner) : g_owner(owner) {}

        guard(const guard&) = delete;
        guard& operator=(const guard&) = delete;

        guard(guard&& gu) noexcept : g_owner(std::exchange(gu.g_owner, nullptr))
        {
        }

        guard& operator=(guard&& gu) noexcept
        {
            this->g_owner = std::exchange(gu.g_owner, nullptr);
            return *this;
        }

        ~guard()
        {
            if (this->g_owner != nullptr) {
                this->g_owner->s_callback = {};
            }
        }

    private:
        scoped_cb* g_owner;
    };

    guard install(callback_type cb)
    {
        this->s_callback = std::move(cb);

        return guard{this};
    }

    progress_result_t operator()(op_type ot) const
    {
        if (s_callback) {
            return s_callback(ot);
        }

        return progress_result_t::ok;
    }

private:
    callback_type s_callback;
};

template<typename Fn,
         typename... Args,
         std::enable_if_t<std::is_member_pointer<std::decay_t<Fn>>{}, int> = 0>
constexpr decltype(auto)
invoke(Fn&& f, Args&&... args) noexcept(
    noexcept(std::mem_fn(f)(std::forward<Args>(args)...)))
{
    return std::mem_fn(f)(std::forward<Args>(args)...);
}

template<typename Fn,
         typename... Args,
         std::enable_if_t<!std::is_member_pointer<std::decay_t<Fn>>{}, int> = 0>
constexpr decltype(auto)
invoke(Fn&& f, Args&&... args) noexcept(
    noexcept(std::forward<Fn>(f)(std::forward<Args>(args)...)))
{
    return std::forward<Fn>(f)(std::forward<Args>(args)...);
}

template<class F, class... Args>
struct is_invocable {
    template<typename U, typename Obj, typename... FuncArgs>
    static auto test(U&& p)
        -> decltype((std::declval<Obj>().*p)(std::declval<FuncArgs>()...),
                    void(),
                    std::true_type());
    template<typename U, typename... FuncArgs>
    static auto test(U* p) -> decltype((*p)(std::declval<FuncArgs>()...),
                                       void(),
                                       std::true_type());
    template<typename U, typename... FuncArgs>
    static auto test(...) -> decltype(std::false_type());

    static constexpr bool value = decltype(test<F, Args...>(0))::value;
};

}  // namespace lnav::func

#endif

1	/**
2	* Copyright (c) 2020, Timothy Stack
3	*
4	* All rights reserved.
5	*
6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions are met:
8	*
9	* * Redistributions of source code must retain the above copyright notice, this
10	* list of conditions and the following disclaimer.
11	* * Redistributions in binary form must reproduce the above copyright notice,
12	* this list of conditions and the following disclaimer in the documentation
13	* and/or other materials provided with the distribution.
14	* * Neither the name of Timothy Stack nor the names of its contributors
15	* may be used to endorse or promote products derived from this software
16	* without specific prior written permission.
17	*
18	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
19	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21	* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
22	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/
29
30	#ifndef lnav_func_util_hh
31	#define lnav_func_util_hh
32
33	#include <functional>
34	#include <utility>
35
36	#include "progress.hh"
37
38	template<typename F, typename FrontArg>
39	decltype(auto)
UNCOV 40	bind_mem(F&& f, FrontArg&& frontArg)	×
41	{
UNCOV 42	return [f = std::forward<F>(f),	×
UNCOV 43	frontArg = std::forward<FrontArg>(frontArg)](auto&&... backArgs) {	×
UNCOV 44	return (frontArg->*f)(std::forward<decltype(backArgs)>(backArgs)...);	×
45	};
46	}
47
48	struct noop_func {
49	struct anything {
50	template<class T>
51	operator T()
52	{
53	return {};
54	}
55	// optional reference support. Somewhat evil.
56	template<class T>
57	operator T&() const
58	{
59	static T t{};
60	return t;
61	}
62	};
63	template<class... Args>
64	anything operator()(Args&&...) const	42,019✔
65	{
66	return {};	42,019✔
67	}
68	};
69
70	namespace lnav::func {
71
72	enum class op_type {
73	blocking,
74	interactive,
75	};
76
77	class scoped_cb {
78	public:
79	using callback_type = std::function<progress_result_t(op_type)>;
80
81	class guard {
82	public:
UNCOV 83	explicit guard(scoped_cb* owner) : g_owner(owner) {}	×
84
85	guard(const guard&) = delete;
86	guard& operator=(const guard&) = delete;
87
88	guard(guard&& gu) noexcept : g_owner(std::exchange(gu.g_owner, nullptr))
89	{
90	}
91
92	guard& operator=(guard&& gu) noexcept
93	{
94	this->g_owner = std::exchange(gu.g_owner, nullptr);
95	return *this;
96	}
97
UNCOV 98	~guard()	×
99	{
UNCOV 100	if (this->g_owner != nullptr) {	×
UNCOV 101	this->g_owner->s_callback = {};	×
102	}
103	}
104
105	private:
106	scoped_cb* g_owner;
107	};
108
UNCOV 109	guard install(callback_type cb)	×
110	{
UNCOV 111	this->s_callback = std::move(cb);	×
112
UNCOV 113	return guard{this};	×
114	}
115
116	progress_result_t operator()(op_type ot) const	124✔
117	{
118	if (s_callback) {	124✔
UNCOV 119	return s_callback(ot);	×
120	}
121
122	return progress_result_t::ok;	124✔
123	}
124
125	private:
126	callback_type s_callback;
127	};
128
129	template<typename Fn,
130	typename... Args,
131	std::enable_if_t<std::is_member_pointer<std::decay_t<Fn>>{}, int> = 0>
132	constexpr decltype(auto)
133	invoke(Fn&& f, Args&&... args) noexcept(	885✔
134	noexcept(std::mem_fn(f)(std::forward<Args>(args)...)))
135	{
136	return std::mem_fn(f)(std::forward<Args>(args)...);	885✔
137	}
138
139	template<typename Fn,
140	typename... Args,
141	std::enable_if_t<!std::is_member_pointer<std::decay_t<Fn>>{}, int> = 0>
142	constexpr decltype(auto)
143	invoke(Fn&& f, Args&&... args) noexcept(	51,027✔
144	noexcept(std::forward<Fn>(f)(std::forward<Args>(args)...)))
145	{
146	return std::forward<Fn>(f)(std::forward<Args>(args)...);	51,027✔
147	}
148
149	template<class F, class... Args>
150	struct is_invocable {
151	template<typename U, typename Obj, typename... FuncArgs>
152	static auto test(U&& p)
153	-> decltype((std::declval<Obj>().*p)(std::declval<FuncArgs>()...),
154	void(),
155	std::true_type());
156	template<typename U, typename... FuncArgs>
157	static auto test(U* p) -> decltype((*p)(std::declval<FuncArgs>()...),
158	void(),
159	std::true_type());
160	template<typename U, typename... FuncArgs>
161	static auto test(...) -> decltype(std::false_type());
162
163	static constexpr bool value = decltype(test<F, Args...>(0))::value;
164	};
165
166	} // namespace lnav::func
167
168	#endif

tstack / lnav / 17589970077-2502

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous