Method appendConstructor

libsolidity/codegen/ContractCompiler.cpp:286–313

}

void ContractCompiler::appendConstructor(FunctionDefinition const& _constructor)
{
	CompilerContext::LocationSetter locationSetter(m_context, _constructor);
	if (!_constructor.isPayable())
		appendCallValueCheck();

	// copy constructor arguments from code to memory and then to stack, they are supplied after the actual program
	if (!_constructor.parameters().empty())
	{
		CompilerUtils(m_context).fetchFreeMemoryPointer();
		// CODESIZE returns the actual size of the code,
		// which is the size of the generated code (``programSize``)
		// plus the constructor arguments added to the transaction payload.
		m_context.appendProgramSize();
		m_context << Instruction::CODESIZE << Instruction::SUB;
		// stack: <memptr> <argument size>
		m_context << Instruction::DUP1;
		m_context.appendProgramSize();
		m_context << Instruction::DUP4 << Instruction::CODECOPY;
		// stack: <memptr> <argument size>
		m_context << Instruction::DUP2 << Instruction::DUP2 << Instruction::ADD;
		// stack: <memptr> <argument size> <mem end>
		CompilerUtils(m_context).storeFreeMemoryPointer();
		// stack: <memptr> <argument size>
		CompilerUtils(m_context).abiDecode(FunctionType(_constructor).parameterTypes(), true);
	}
	_constructor.accept(*this);
}

void ContractCompiler::appendDelegatecallCheck()
{