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Diffstat (limited to 'CompilerUtilities.cpp')
-rw-r--r-- | CompilerUtilities.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/CompilerUtilities.cpp b/CompilerUtilities.cpp new file mode 100644 index 00000000..b8f57618 --- /dev/null +++ b/CompilerUtilities.cpp @@ -0,0 +1,60 @@ +/* + 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/>. +*/ +/** + * @author Christian <c@ethdev.com> + * @date 2014 + * Utilities for the solidity compiler. + */ + +#include <cassert> +#include <utility> +#include <numeric> +#include <libsolidity/AST.h> +#include <libsolidity/Compiler.h> + +using namespace std; + +namespace dev { +namespace solidity { + +void CompilerContext::initializeLocalVariables(unsigned _numVariables) +{ + if (_numVariables > 0) + { + *this << u256(0); + for (unsigned i = 1; i < _numVariables; ++i) + *this << eth::Instruction::DUP1; + m_asm.adjustDeposit(-_numVariables); + } +} + +int CompilerContext::getStackPositionOfVariable(const Declaration& _declaration) +{ + auto res = find(begin(m_localVariables), end(m_localVariables), &_declaration); + assert(res != m_localVariables.end()); + return end(m_localVariables) - res - 1 + m_asm.deposit(); +} + +eth::AssemblyItem CompilerContext::getFunctionEntryLabel(const FunctionDefinition& _function) const +{ + auto res = m_functionEntryLabels.find(&_function); + assert(res != m_functionEntryLabels.end()); + return res->second.tag(); +} + +} +} |