Move AssemblyStack to libyul.

2023-10-03 13:03:40 +00:00 · 2019-02-13 12:23:07 +01:00
parent bbeab9ffdf
commit d073eb1544
4 changed files with 2 additions and 2 deletions
@@ -0,0 +1,109 @@
+/*
+	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/>.
+*/
+/**
+ * Full assembly stack that can support EVM-assembly and Yul as input and EVM, EVM1.5 and
+ * eWasm as output.
+ */
+
+#pragma once
+
+#include <liblangutil/ErrorReporter.h>
+#include <liblangutil/EVMVersion.h>
+
+#include <libyul/Object.h>
+#include <libyul/ObjectParser.h>
+
+#include <libevmasm/LinkerObject.h>
+
+#include <memory>
+#include <string>
+
+namespace langutil
+{
+class Scanner;
+}
+namespace yul
+{
+class AbstractAssembly;
+}
+
+namespace dev
+{
+namespace solidity
+{
+
+struct MachineAssemblyObject
+{
+	std::shared_ptr<eth::LinkerObject> bytecode;
+	std::string assembly;
+};
+
+/*
+ * Full assembly stack that can support EVM-assembly and Yul as input and EVM, EVM1.5 and
+ * eWasm as output.
+ */
+class AssemblyStack
+{
+public:
+	enum class Language { Yul, Assembly, StrictAssembly };
+	enum class Machine { EVM, EVM15, eWasm };
+
+	explicit AssemblyStack(EVMVersion _evmVersion = EVMVersion(), Language _language = Language::Assembly):
+		m_language(_language), m_evmVersion(_evmVersion), m_errorReporter(m_errors)
+	{}
+
+	/// @returns the scanner used during parsing
+	langutil::Scanner const& scanner() const;
+
+	/// Runs parsing and analysis steps, returns false if input cannot be assembled.
+	/// Multiple calls overwrite the previous state.
+	bool parseAndAnalyze(std::string const& _sourceName, std::string const& _source);
+
+	/// Run the optimizer suite. Can only be used with Yul or strict assembly.
+	void optimize();
+
+	/// Run the assembly step (should only be called after parseAndAnalyze).
+	/// @param _optimize does not run the optimizer but performs optimized code generation.
+	MachineAssemblyObject assemble(Machine _machine, bool _optimize = false) const;
+
+	/// @returns the errors generated during parsing, analysis (and potentially assembly).
+	langutil::ErrorList const& errors() const { return m_errors; }
+
+	/// Pretty-print the input after having parsed it.
+	std::string print() const;
+
+private:
+	bool analyzeParsed();
+	bool analyzeParsed(yul::Object& _object);
+
+	void compileEVM(yul::AbstractAssembly& _assembly, bool _evm15, bool _optimize) const;
+
+	void optimize(yul::Object& _object);
+
+	Language m_language = Language::Assembly;
+	EVMVersion m_evmVersion;
+
+	std::shared_ptr<langutil::Scanner> m_scanner;
+
+	bool m_analysisSuccessful = false;
+	std::shared_ptr<yul::Object> m_parserResult;
+	langutil::ErrorList m_errors;
+	langutil::ErrorReporter m_errorReporter;
+};
+
+}
+}