Method abiEncodingFunctionFunctionType

libsolidity/codegen/ABIFunctions.cpp:1025–1069

}

std::string ABIFunctions::abiEncodingFunctionFunctionType(
	FunctionType const& _from,
	Type const& _to,
	EncodingOptions const& _options
)
{
	solAssert(
		_from.kind() == FunctionType::Kind::External &&
		_from.isImplicitlyConvertibleTo(_to) &&
		_from.sizeOnStack() == _to.sizeOnStack(),
		"Invalid function type conversion requested"
	);

	std::string functionName =
		"abi_encode_" +
		_from.identifier() +
		"_to_" +
		_to.identifier() +
		_options.toFunctionNameSuffix();

	if (_options.encodeFunctionFromStack)
		return createFunction(functionName, [&]() {
			return Whiskers(R"(
				function <functionName>(addr, function_id, pos) {
					addr, function_id := <convert>(addr, function_id)
					mstore(pos, <combineExtFun>(addr, function_id))
				}
			)")
			("functionName", functionName)
			("combineExtFun", m_utils.combineExternalFunctionIdFunction())
			("convert", m_utils.conversionFunction(_from, _to))
			.render();
		});
	else
		return createFunction(functionName, [&]() {
			return Whiskers(R"(
				function <functionName>(addr_and_function_id, pos) {
					mstore(pos, <cleanExtFun>(addr_and_function_id))
				}
			)")
			("functionName", functionName)
			("cleanExtFun", m_utils.cleanupFunction(_to))
			.render();
		});
}

std::string ABIFunctions::abiDecodingFunction(Type const& _type, bool _fromMemory, bool _forUseOnStack)
{