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// file : build2/target-key -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef BUILD2_TARGET_KEY
#define BUILD2_TARGET_KEY
#include <map>
#include <butl/utility> // compare_c_string
#include <build2/types>
#include <build2/utility>
#include <build2/target-type>
namespace build2
{
// Light-weight (by being shallow-pointing) target key.
//
class target_key
{
public:
const target_type* const type;
const dir_path* const dir;
const string* const name;
const string* const& ext;
friend bool
operator< (const target_key& x, const target_key& y)
{
const target_type* xt (x.type);
const target_type* yt (y.type);
//@@ TODO: use compare() to compare once.
// Unspecified and specified extension are assumed equal. The
// extension strings are from the pool, so we can just compare
// pointers.
//
return
(xt < yt) ||
(xt == yt && *x.name < *y.name) ||
(xt == yt && *x.name == *y.name && *x.dir < *y.dir) ||
(xt == yt && *x.name == *y.name && *x.dir == *y.dir &&
x.ext != nullptr && y.ext != nullptr && *x.ext < *y.ext);
}
};
// If the target type has a custom print function, call that. Otherwise,
// call to_stream() with the current stream verbosity as a third argument.
// Both are defined in target.cxx.
//
ostream&
operator<< (ostream&, const target_key&);
ostream&
to_stream (ostream&, const target_key&, uint16_t ext_verb);
}
#endif // BUILD2_TARGET_KEY
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