From e3dffb611fe1736e3ffa170e6d8dc4dee17366bd Mon Sep 17 00:00:00 2001 From: chriseth Date: Wed, 21 Oct 2015 00:21:52 +0200 Subject: File reorganisation. --- libsolidity/analysis/ConstantEvaluator.cpp | 59 ++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libsolidity/analysis/ConstantEvaluator.cpp (limited to 'libsolidity/analysis/ConstantEvaluator.cpp') diff --git a/libsolidity/analysis/ConstantEvaluator.cpp b/libsolidity/analysis/ConstantEvaluator.cpp new file mode 100644 index 00000000..6beb655e --- /dev/null +++ b/libsolidity/analysis/ConstantEvaluator.cpp @@ -0,0 +1,59 @@ +/* + 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 . +*/ +/** + * @author Christian + * @date 2015 + * Evaluator for types of constant expressions. + */ + +#include +#include + +using namespace std; +using namespace dev; +using namespace dev::solidity; + + +void ConstantEvaluator::endVisit(UnaryOperation const& _operation) +{ + TypePointer const& subType = _operation.subExpression().annotation().type; + if (!dynamic_cast(subType.get())) + BOOST_THROW_EXCEPTION(_operation.subExpression().createTypeError("Invalid constant expression.")); + TypePointer t = subType->unaryOperatorResult(_operation.getOperator()); + _operation.annotation().type = t; +} + +void ConstantEvaluator::endVisit(BinaryOperation const& _operation) +{ + TypePointer const& leftType = _operation.leftExpression().annotation().type; + TypePointer const& rightType = _operation.rightExpression().annotation().type; + if (!dynamic_cast(leftType.get())) + BOOST_THROW_EXCEPTION(_operation.leftExpression().createTypeError("Invalid constant expression.")); + if (!dynamic_cast(rightType.get())) + BOOST_THROW_EXCEPTION(_operation.rightExpression().createTypeError("Invalid constant expression.")); + TypePointer commonType = leftType->binaryOperatorResult(_operation.getOperator(), rightType); + if (Token::isCompareOp(_operation.getOperator())) + commonType = make_shared(); + _operation.annotation().type = commonType; +} + +void ConstantEvaluator::endVisit(Literal const& _literal) +{ + _literal.annotation().type = Type::forLiteral(_literal); + if (!_literal.annotation().type) + BOOST_THROW_EXCEPTION(_literal.createTypeError("Invalid literal value.")); +} -- cgit v1.2.3