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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
// file : build2/diagnostics.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build2/diagnostics>
#include <cstring> // strchr()
#include <iostream>
using namespace std;
namespace build2
{
// Stream verbosity.
//
const int stream_verb_index = ostream::xalloc ();
void
print_process (const char* const* args, size_t n)
{
diag_record r (text);
print_process (r, args, n);
}
void
print_process (diag_record& r, const char* const* args, size_t n)
{
size_t m (0);
const char* const* p (args);
do
{
if (m != 0)
r << " |"; // Trailing space will be added inside the loop.
for (m++; *p != nullptr; p++, m++)
{
if (p != args)
r << ' ';
// Quote if empty or contains spaces.
//
bool q (**p == '\0' || strchr (*p, ' ') != nullptr);
if (q)
r << '"';
r << *p;
if (q)
r << '"';
}
if (m < n) // Can we examine the next element?
{
p++;
m++;
}
} while (*p != nullptr);
}
// Diagnostics verbosity level.
//
uint16_t verb;
// Diagnostic facility, base infrastructure.
//
ostream* diag_stream = &cerr;
diag_record::
~diag_record () noexcept(false)
{
// Don't flush the record if this destructor was called as part of
// the stack unwinding. Right now this means we cannot use this
// mechanism in destructors, which is not a big deal, except for
// one place: exception_guard. So for now we are going to have
// this ugly special check which we will be able to get rid of
// once C++17 uncaught_exceptions() becomes available.
//
if (!empty_ && (!std::uncaught_exception () || exception_unwinding_dtor))
{
*diag_stream << os_.str () << endl;
if (epilogue_ != nullptr)
epilogue_ (*this); // Can throw.
}
}
// Diagnostic facility, project specifics.
//
void simple_prologue_base::
operator() (const diag_record& r) const
{
stream_verb (r.os_, sverb_);
if (type_ != nullptr)
r << type_ << ": ";
if (name_ != nullptr)
r << name_ << ": ";
}
void location_prologue_base::
operator() (const diag_record& r) const
{
stream_verb (r.os_, sverb_);
r << *loc_.file << ':';
if (loc_.line != 0)
r << loc_.line << ':';
if (loc_.column != 0)
r << loc_.column << ':';
r << ' ';
if (type_ != nullptr)
r << type_ << ": ";
if (name_ != nullptr)
r << name_ << ": ";
}
const basic_mark error (&stream_verb_map, "error");
const basic_mark warn (&stream_verb_map, "warning");
const basic_mark info (&stream_verb_map, "info");
const basic_mark text (&stream_verb_map, nullptr);
const fail_mark<failed> fail;
}
|