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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 <set>
#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 bool
dump_variables (ostream& os, string& ind, const variable_map& vars)
{
bool r (false);
for (const auto& e: vars)
{
const variable& var (e.first);
const value_ptr& val (e.second);
os << endl
<< ind << var.name << " = ";
if (val == nullptr)
os << "[null]";
else
{
//@@ TODO: assuming it is a list.
//
os << dynamic_cast<list_value&> (*val);
}
r = true;
}
return r;
}
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& p,
scope_map::iterator& i,
set<const target*>& rts)
{
// We don't want the extra notations (e.g., ~/) provided by
// diag_relative() since we want the path to be relative to
// the global scope.
//
os << ind << relative (p.path ()) << ":" << endl
<< ind << '{';
const dir_path* orb (relative_base);
relative_base = &p.path ();
ind += " ";
bool vb (false), sb (false); // Variable/scope block.
// Variables.
//
vb = dump_variables (os, ind, p.vars);
// Nested scopes of which we are a parent.
//
for (auto e (scopes.end ()); i != e && i->second.parent_scope () == &p; )
{
if (vb)
{
os << endl;
vb = false;
}
if (sb)
os << endl; // Extra newline between scope blocks.
os << endl;
scope& s (i->second);
dump_scope (os, ind, a, s, ++i, rts);
sb = true;
}
// Targets.
//
for (const auto& pt: targets)
{
const target& t (*pt);
const scope* ts (&t.base_scope ());
bool f (false);
if (ts == &p)
{
// If this is the global scope, check that this target hasn't
// been handled by the src logic below.
//
f = (ts != global_scope || rts.find (&t) == rts.end ());
}
// If this target is in the global scope and we have a corresponding
// src directory (i.e., we are a scope inside a project), check
// whether this target is in our src.
//
else if (ts == global_scope && p.src_path_ != nullptr)
{
if (t.dir.sub (p.src_path ()))
{
// Check that it hasn't already been handled by a more qualified
// scope.
//
f = rts.insert (&t).second;
}
}
if (!f)
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 ());
scope& g (i->second); // Global scope.
assert (&g == global_scope);
string ind;
set<const target*> rts;
ostream& os (*diag_stream);
dump_scope (os, ind, a, g, ++i, rts);
os << endl;
}
}
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