Moving files from libsolidity/inlineasm/*.{cpp,h} to libyul/.

libyul/AsmScopeFiller.cpp

@@ -0,0 +1,181 @@
+/*
+	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/>.
+*/
+/**
+ * Module responsible for registering identifiers inside their scopes.
+ */
+
+#include <libsolidity/inlineasm/AsmScopeFiller.h>
+
+#include <libsolidity/inlineasm/AsmData.h>
+#include <libsolidity/inlineasm/AsmScope.h>
+#include <libsolidity/inlineasm/AsmAnalysisInfo.h>
+
+#include <liblangutil/ErrorReporter.h>
+#include <liblangutil/Exceptions.h>
+
+#include <libdevcore/CommonData.h>
+
+#include <boost/range/adaptor/reversed.hpp>
+
+#include <memory>
+#include <functional>
+
+using namespace std;
+using namespace dev;
+using namespace langutil;
+using namespace dev::solidity;
+using namespace dev::solidity::assembly;
+
+ScopeFiller::ScopeFiller(AsmAnalysisInfo& _info, ErrorReporter& _errorReporter):
+	m_info(_info), m_errorReporter(_errorReporter)
+{
+	m_currentScope = &scope(nullptr);
+}
+
+bool ScopeFiller::operator()(ExpressionStatement const& _expr)
+{
+	return boost::apply_visitor(*this, _expr.expression);
+}
+
+bool ScopeFiller::operator()(Label const& _item)
+{
+	if (!m_currentScope->registerLabel(_item.name))
+	{
+		//@TODO secondary location
+		m_errorReporter.declarationError(
+			_item.location,
+			"Label name " + _item.name.str() + " already taken in this scope."
+		);
+		return false;
+	}
+	return true;
+}
+
+bool ScopeFiller::operator()(assembly::VariableDeclaration const& _varDecl)
+{
+	for (auto const& variable: _varDecl.variables)
+		if (!registerVariable(variable, _varDecl.location, *m_currentScope))
+			return false;
+	return true;
+}
+
+bool ScopeFiller::operator()(assembly::FunctionDefinition const& _funDef)
+{
+	bool success = true;
+	vector<Scope::YulType> arguments;
+	for (auto const& _argument: _funDef.parameters)
+		arguments.emplace_back(_argument.type.str());
+	vector<Scope::YulType> returns;
+	for (auto const& _return: _funDef.returnVariables)
+		returns.emplace_back(_return.type.str());
+	if (!m_currentScope->registerFunction(_funDef.name, arguments, returns))
+	{
+		//@TODO secondary location
+		m_errorReporter.declarationError(
+			_funDef.location,
+			"Function name " + _funDef.name.str() + " already taken in this scope."
+		);
+		success = false;
+	}
+
+	auto virtualBlock = m_info.virtualBlocks[&_funDef] = make_shared<Block>();
+	Scope& varScope = scope(virtualBlock.get());
+	varScope.superScope = m_currentScope;
+	m_currentScope = &varScope;
+	varScope.functionScope = true;
+	for (auto const& var: _funDef.parameters + _funDef.returnVariables)
+		if (!registerVariable(var, _funDef.location, varScope))
+			success = false;
+
+	if (!(*this)(_funDef.body))
+		success = false;
+
+	solAssert(m_currentScope == &varScope, "");
+	m_currentScope = m_currentScope->superScope;
+
+	return success;
+}
+
+bool ScopeFiller::operator()(If const& _if)
+{
+	return (*this)(_if.body);
+}
+
+bool ScopeFiller::operator()(Switch const& _switch)
+{
+	bool success = true;
+	for (auto const& _case: _switch.cases)
+		if (!(*this)(_case.body))
+			success = false;
+	return success;
+}
+
+bool ScopeFiller::operator()(ForLoop const& _forLoop)
+{
+	Scope* originalScope = m_currentScope;
+
+	bool success = true;
+	if (!(*this)(_forLoop.pre))
+		success = false;
+	m_currentScope = &scope(&_forLoop.pre);
+	if (!boost::apply_visitor(*this, *_forLoop.condition))
+		success = false;
+	if (!(*this)(_forLoop.body))
+		success = false;
+	if (!(*this)(_forLoop.post))
+		success = false;
+
+	m_currentScope = originalScope;
+
+	return success;
+}
+
+bool ScopeFiller::operator()(Block const& _block)
+{
+	bool success = true;
+	scope(&_block).superScope = m_currentScope;
+	m_currentScope = &scope(&_block);
+
+	for (auto const& s: _block.statements)
+		if (!boost::apply_visitor(*this, s))
+			success = false;
+
+	m_currentScope = m_currentScope->superScope;
+	return success;
+}
+
+bool ScopeFiller::registerVariable(TypedName const& _name, SourceLocation const& _location, Scope& _scope)
+{
+	if (!_scope.registerVariable(_name.name, _name.type))
+	{
+		//@TODO secondary location
+		m_errorReporter.declarationError(
+			_location,
+			"Variable name " + _name.name.str() + " already taken in this scope."
+		);
+		return false;
+	}
+	return true;
+}
+
+Scope& ScopeFiller::scope(Block const* _block)
+{
+	auto& scope = m_info.scopes[_block];
+	if (!scope)
+		scope = make_shared<Scope>();
+	return *scope;
+}