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Include creation code only once.

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This commit is contained in:
chriseth 2017-01-20 20:16:18 +01:00
parent 8e5f1c0d50
commit ead1a3b33f
1 changed files with 18 additions and 14 deletions
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32
libsolidity/codegen/ExpressionCompiler.cpp
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@ -556,20 +556,24 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
arg->accept(*this);
argumentTypes.push_back(arg->annotation().type);
}
ContractDefinition const& contract =
dynamic_cast<ContractType const&>(*function.returnParameterTypes().front()).contractDefinition();
// copy the contract's code into memory
eth::Assembly const& assembly = m_context.compiledContract(contract);
utils().fetchFreeMemoryPointer();
// TODO we create a copy here, which is actually what we want.
// This should be revisited at the point where we fix
// https://github.com/ethereum/solidity/issues/1092
// pushes size
auto subroutine = m_context.addSubroutine(make_shared<eth::Assembly>(assembly));
m_context << Instruction::DUP1 << subroutine;
m_context << Instruction::DUP4 << Instruction::CODECOPY;
m_context << Instruction::ADD;
ContractDefinition const* contract =
&dynamic_cast<ContractType const&>(*function.returnParameterTypes().front()).contractDefinition();
m_context.callLowLevelFunction(
"$copyContractCreationCodeToMemory_" + contract->type()->identifier(),
0,
1,
[contract](CompilerContext& _context)
{
// copy the contract's code into memory
eth::Assembly const& assembly = _context.compiledContract(*contract);
CompilerUtils(_context).fetchFreeMemoryPointer();
// pushes size
auto subroutine = _context.addSubroutine(make_shared<eth::Assembly>(assembly));
_context << Instruction::DUP1 << subroutine;
_context << Instruction::DUP4 << Instruction::CODECOPY;
_context << Instruction::ADD;
}
);
utils().encodeToMemory(argumentTypes, function.parameterTypes());
// now on stack: memory_end_ptr
// need: size, offset, endowment