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// file : build/dump.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build/dump>
#include <string>
#include <cassert>
#include <build/scope>
#include <build/target>
#include <build/variable>
#include <build/context>
#include <build/diagnostics>
using namespace std;
namespace build
{
static void
dump_variable (ostream& os, const variable& var, const value& val)
{
os << var.name << " = ";
if (val.null ())
os << "[null]";
else
os << val.data_;
}
static void
dump_variables (ostream& os, string& ind, const variable_map& vars)
{
for (const auto& e: vars)
{
os << endl
<< ind;
dump_variable (os, e.first, e.second);
}
}
static void
dump_variables (ostream& os, string& ind, const variable_type_map& vtm)
{
for (const auto& vt: vtm)
{
const target_type& t (vt.first);
const variable_pattern_map& vpm (vt.second);
for (const auto& vp: vpm)
{
const string p (vp.first);
const variable_map& vars (vp.second);
os << endl
<< ind;
if (t.id != target::static_type.id)
os << t.name << '{';
os << p;
if (t.id != target::static_type.id)
os << '}';
os << ':';
if (vars.size () == 1)
{
os << ' ';
dump_variable (os, vars.begin ()->first, vars.begin ()->second);
}
else
{
os << endl
<< ind << '{';
ind += " ";
dump_variables (os, ind, vars);
ind.resize (ind.size () - 2);
os << endl
<< ind << '}';
}
}
}
}
static void
dump_target (ostream& os, string& ind, action a, const target& t)
{
os << ind << t;
if (t.group != nullptr)
os << "->" << *t.group;
os << ':';
for (const prerequisite& p: t.prerequisites)
{
os << ' ';
// Print it as target if one has been cached.
//
if (p.target != nullptr)
os << *p.target;
else
os << p;
}
// If the target has been matched to a rule, also print resolved
// prerequisite targets.
//
if (t.recipe (a))
{
bool first (true);
for (const target* pt: t.prerequisite_targets)
{
if (pt == nullptr) // Skipped.
continue;
os << (first ? " | " : " ") << *pt;
first = false;
}
}
// Print target-specific variables.
//
if (!t.vars.empty ())
{
os << endl
<< ind << '{';
ind += " ";
dump_variables (os, ind, t.vars);
ind.resize (ind.size () - 2);
os << endl
<< ind << '}';
}
}
static void
dump_scope (ostream& os,
string& ind,
action a,
scope_map::const_iterator& i)
{
scope& p (*i->second);
const dir_path& d (i->first);
++i;
// We don't want the extra notations (e.g., ~/) provided by
// diag_relative() since we want the path to be relative to
// the outer scope.
//
os << ind << relative (d) << ":" << endl
<< ind << '{';
const dir_path* orb (relative_base);
relative_base = &d;
ind += " ";
bool vb (false), sb (false); // Variable/scope block.
// Target type/pattern-sepcific variables.
//
if (!p.target_vars.empty ())
{
dump_variables (os, ind, p.target_vars);
vb = true;
}
// Scope variables.
//
if (!p.vars.empty ())
{
if (vb)
os << endl;
dump_variables (os, ind, p.vars);
vb = true;
}
// Nested scopes of which we are an immediate parent.
//
for (auto e (scopes.end ()); i != e && i->second->parent_scope () == &p;)
{
// See what kind of scope entry this is. It can be:
//
// 1. Out-of-project scope.
// 2. In-project out entry.
// 3. In-project src entry.
//
// We want to print #2 and #3 as a single, unified scope.
//
scope& s (*i->second);
if (s.src_path_ != s.out_path_ && s.src_path_ == &i->first)
{
++i;
continue;
}
if (vb)
{
os << endl;
vb = false;
}
if (sb)
os << endl; // Extra newline between scope blocks.
os << endl;
dump_scope (os, ind, a, i);
sb = true;
}
// Targets.
//
for (const auto& pt: targets)
{
const target& t (*pt);
if (&p != &t.base_scope ())
continue;
if (vb || sb)
{
os << endl;
vb = sb = false;
}
os << endl;
dump_target (os, ind, a, t);
}
ind.resize (ind.size () - 2);
relative_base = orb;
os << endl
<< ind << '}';
}
void
dump (action a)
{
auto i (scopes.begin ());
assert (i->second == global_scope);
string ind;
ostream& os (*diag_stream);
dump_scope (os, ind, a, i);
os << endl;
}
}
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