blob: 025a8f9257628852aa0a8e8fee3868453d05ee8d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#ifndef function_group_hh_INCLUDED
#define function_group_hh_INCLUDED
#include "exception.hh"
#include "id_map.hh"
#include "string.hh"
namespace Kakoune
{
struct group_not_found : public runtime_error
{
using runtime_error::runtime_error;
};
template<typename... Args>
class FunctionGroup
{
public:
using Function = std::function<void (Args...)>;
using FunctionAndId = std::pair<String, std::function<void (Args...)>>;
void operator()(Args... args)
{
for (auto& func : m_functions)
func.second(std::forward<Args>(args)...);
}
void append(FunctionAndId&& function)
{
if (m_functions.contains(function.first))
throw runtime_error("duplicate id: " + function.first);
m_functions.append(std::forward<FunctionAndId>(function));
}
void remove(StringView id)
{
m_functions.remove(id);
}
FunctionGroup& get_group(StringView path, Codepoint path_separator = 0)
{
auto sep_it = std::find(path.begin(), path.end(), path_separator);
StringView id(path.begin(), sep_it);
auto it = m_functions.find(id);
if (it == m_functions.end())
throw group_not_found("no such id: "_str + id);
FunctionGroup* group = it->second.template target<FunctionGroup>();
if (not group)
throw group_not_found("not a group: "_str + id);
if (sep_it != path.end())
return group->get_group(StringView(sep_it+1, path.end()), path_separator);
else
return *group;
}
CandidateList complete_id(StringView prefix, ByteCount cursor_pos) const
{
return m_functions.complete_id(prefix, cursor_pos);
}
CandidateList complete_group_id(StringView prefix, ByteCount cursor_pos) const
{
return m_functions.complete_id_if(
prefix, cursor_pos, [](const FunctionAndId& func) {
return func.second.template target<FunctionGroup>() != nullptr;
});
}
private:
id_map<Function> m_functions;
};
}
#endif // function_group_hh_INCLUDED
|
