Move assembly related files to libevmasm and Params.h/.cpp to libevmcore.

1 files changed, 100 insertions, 0 deletions

diff --git a/AssemblyItem.h b/AssemblyItem.h
new file mode 100644
index 00000000..6f2a65de
--- /dev/null
+++ b/AssemblyItem.h
@@ -0,0 +1,100 @@
+/*
+	This file is part of cpp-ethereum.
+
+	cpp-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	cpp-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file Assembly.h
+ * @author Gav Wood <i@gavwood.com>
+ * @date 2014
+ */
+
+#pragma once
+
+#include <iostream>
+#include <sstream>
+#include <libdevcore/Common.h>
+#include <libdevcore/Assertions.h>
+#include <libevmcore/Instruction.h>
+#include <libevmasm/SourceLocation.h>
+#include "Exceptions.h"
+
+namespace dev
+{
+namespace eth
+{
+
+enum AssemblyItemType { UndefinedItem, Operation, Push, PushString, PushTag, PushSub, PushSubSize, PushProgramSize, Tag, PushData };
+
+class Assembly;
+
+class AssemblyItem
+{
+public:
+	enum class JumpType { Ordinary, IntoFunction, OutOfFunction };
+
+	AssemblyItem(u256 _push, SourceLocation const& _location = SourceLocation()):
+		AssemblyItem(Push, _push, _location) { }
+	AssemblyItem(Instruction _i, SourceLocation const& _location = SourceLocation()):
+		AssemblyItem(Operation, byte(_i), _location) { }
+	AssemblyItem(AssemblyItemType _type, u256 _data = 0, SourceLocation const& _location = SourceLocation()):
+		m_type(_type),
+		m_data(_data),
+		m_location(_location)
+	{
+	}
+
+	AssemblyItem tag() const { assertThrow(m_type == PushTag || m_type == Tag, Exception, ""); return AssemblyItem(Tag, m_data); }
+	AssemblyItem pushTag() const { assertThrow(m_type == PushTag || m_type == Tag, Exception, ""); return AssemblyItem(PushTag, m_data); }
+
+	AssemblyItemType type() const { return m_type; }
+	u256 const& data() const { return m_data; }
+	void setType(AssemblyItemType const _type) { m_type = _type; }
+	void setData(u256 const& _data) { m_data = _data; }
+
+	/// @returns the instruction of this item (only valid if type() == Operation)
+	Instruction instruction() const { return Instruction(byte(m_data)); }
+
+	/// @returns true iff the type and data of the items are equal.
+	bool operator==(AssemblyItem const& _other) const { return m_type == _other.m_type && m_data == _other.m_data; }
+	bool operator!=(AssemblyItem const& _other) const { return !operator==(_other); }
+
+	/// @returns an upper bound for the number of bytes required by this item, assuming that
+	/// the value of a jump tag takes @a _addressLength bytes.
+	unsigned bytesRequired(unsigned _addressLength) const;
+	int deposit() const;
+
+	bool match(AssemblyItem const& _i) const { return _i.m_type == UndefinedItem || (m_type == _i.m_type && (m_type != Operation || m_data == _i.m_data)); }
+	void setLocation(SourceLocation const& _location) { m_location = _location; }
+	SourceLocation const& getLocation() const { return m_location; }
+
+	void setJumpType(JumpType _jumpType) { m_jumpType = _jumpType; }
+	JumpType getJumpType() const { return m_jumpType; }
+	std::string getJumpTypeAsString() const;
+
+private:
+	AssemblyItemType m_type;
+	u256 m_data;
+	SourceLocation m_location;
+	JumpType m_jumpType = JumpType::Ordinary;
+};
+
+using AssemblyItems = std::vector<AssemblyItem>;
+using AssemblyItemsConstRef = vector_ref<AssemblyItem const>;
+
+std::ostream& operator<<(std::ostream& _out, AssemblyItem const& _item);
+std::ostream& operator<<(std::ostream& _out, AssemblyItemsConstRef _i);
+inline std::ostream& operator<<(std::ostream& _out, AssemblyItems const& _i) { return operator<<(_out, AssemblyItemsConstRef(&_i)); }
+
+}
+}