mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
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/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libsolidity/codegen/ReturnInfo.h>
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#include <libsolidity/ast/Types.h>
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#include <libsolidity/ast/AST.h>
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using namespace solidity::frontend;
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using namespace solidity::langutil;
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ReturnInfo::ReturnInfo(EVMVersion const& _evmVersion, FunctionType const& _functionType)
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{
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FunctionType::Kind const funKind = _functionType.kind();
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bool const haveReturndatacopy = _evmVersion.supportsReturndata();
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bool const returnSuccessConditionAndReturndata =
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funKind == FunctionType::Kind::BareCall ||
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funKind == FunctionType::Kind::BareDelegateCall ||
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funKind == FunctionType::Kind::BareStaticCall;
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if (!returnSuccessConditionAndReturndata)
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{
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if (haveReturndatacopy)
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returnTypes = _functionType.returnParameterTypes();
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else
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returnTypes = _functionType.returnParameterTypesWithoutDynamicTypes();
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for (auto const& retType: returnTypes)
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if (retType->isDynamicallyEncoded())
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{
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solAssert(haveReturndatacopy, "");
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dynamicReturnSize = true;
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estimatedReturnSize = 0;
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break;
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}
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else if (retType->decodingType())
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estimatedReturnSize += retType->decodingType()->calldataEncodedSize();
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else
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estimatedReturnSize += retType->calldataEncodedSize();
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}
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}
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