yosys/kernel/binding.h

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/* -*- c++ -*-
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef BINDING_H
#define BINDING_H
#include "kernel/rtlil.h"
YOSYS_NAMESPACE_BEGIN
struct RTLIL::Binding
{
// Represents a bind construct.
//
// The target of the binding is represented by target_type and
// target_name (see comments above the fields).
Binding(RTLIL::IdString target_type,
RTLIL::IdString target_name);
virtual ~Binding() {}
// Return a string describing the binding
virtual std::string describe() const = 0;
protected:
// May be empty. If not, it's the name of the module or interface to
// bind to.
RTLIL::IdString target_type;
// If target_type is nonempty (the usual case), this is a hierarchical
// reference to the bind target. If target_type is empty, we have to
// wait until the hierarchy pass to figure out whether this was the name
// of a module/interface type or an instance.
RTLIL::IdString target_name;
// An attribute name which contains an ID that's unique across binding
// instances (used to ensure we don't apply a binding twice to a module)
RTLIL::IdString attr_name;
};
YOSYS_NAMESPACE_END
#endif