1 files changed, 60 insertions, 0 deletions
diff --git a/kernel/binding.h b/kernel/binding.h
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+++ b/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