Merge pull request #5358 from ethereum/yulObjects

[Yul] Yul objects parser

1 files changed, 72 insertions, 0 deletions

diff --git a/libyul/Object.h b/libyul/Object.h
new file mode 100644
index 00000000..cfd8d02d
--- /dev/null
+++ b/libyul/Object.h
@@ -0,0 +1,72 @@
+/*
+	This file is part of solidity.
+
+	solidity 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.
+
+	solidity 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 solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * Yul code and data object container.
+ */
+
+#pragma once
+
+#include <libyul/AsmDataForward.h>
+#include <libyul/YulString.h>
+
+#include <libdevcore/Common.h>
+
+#include <memory>
+
+namespace yul
+{
+struct AsmAnalysisInfo;
+
+
+/**
+ * Generic base class for both Yul objects and Yul data.
+ */
+struct ObjectNode
+{
+	virtual ~ObjectNode() {}
+	virtual std::string toString(bool _yul) const = 0;
+
+	YulString name;
+};
+
+/**
+ * Named data in Yul objects.
+ */
+struct Data: ObjectNode
+{
+	Data(YulString _name, dev::bytes _data): data(std::move(_data)) { name = _name; }
+	std::string toString(bool _yul) const override;
+
+	dev::bytes data;
+};
+
+/**
+ * Yul code and data object container.
+ */
+struct Object: ObjectNode
+{
+public:
+	/// @returns a (parseable) string representation. Includes types if @a _yul is set.
+	std::string toString(bool _yul) const override;
+
+	std::shared_ptr<Block> code;
+	std::vector<std::shared_ptr<ObjectNode>> subObjects;
+	std::map<YulString, size_t> subIndexByName;
+	std::shared_ptr<yul::AsmAnalysisInfo> analysisInfo;
+};
+
+}