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// file : build2/diagnostics.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build2/diagnostics>
#include <cstring> // strchr()
#include <iostream>
#include <build2/utility>
using namespace std;
namespace build2
{
// Relative stream.
//
const int relative_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 () << std::endl;
if (epilogue_ != nullptr)
epilogue_ (*this); // Can throw.
}
}
// Diagnostic facility, project specifics.
//
void simple_prologue_base::
operator() (const diag_record& r) const
{
relative (r.os_, relative_);
if (type_ != nullptr)
r << type_ << ": ";
if (name_ != nullptr)
r << name_ << ": ";
}
void location_prologue_base::
operator() (const diag_record& r) const
{
relative (r.os_, relative_);
r << loc_.file << ':' << loc_.line << ':' << loc_.column << ": ";
if (type_ != nullptr)
r << type_ << ": ";
if (name_ != nullptr)
r << name_ << ": ";
}
const basic_mark error ("error");
const basic_mark warn ("warning");
const basic_mark info ("info");
const text_mark text;
const fail_mark<failed> fail;
}
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