Method copyToMemoryFunction

libsolidity/codegen/YulUtilFunctions.cpp:103–143

}

std::string YulUtilFunctions::copyToMemoryFunction(bool _fromCalldata, bool _cleanup)
{
	std::string functionName =
		"copy_"s +
		(_fromCalldata ? "calldata"s : "memory"s) +
		"_to_memory"s +
		(_cleanup ? "_with_cleanup"s : ""s);

	return m_functionCollector.createFunction(functionName, [&](std::vector<std::string>& _args, std::vector<std::string>&) {
		_args = {"src", "dst", "length"};

		if (_fromCalldata)
			return Whiskers(R"(
				calldatacopy(dst, src, length)
				<?cleanup>mstore(add(dst, length), 0)</cleanup>
			)")
			("cleanup", _cleanup)
			.render();
		else
		{
			if (m_evmVersion.hasMcopy())
				return Whiskers(R"(
					mcopy(dst, src, length)
					<?cleanup>mstore(add(dst, length), 0)</cleanup>
				)")
				("cleanup", _cleanup)
				.render();
			else
				return Whiskers(R"(
					let i := 0
					for { } lt(i, length) { i := add(i, 32) }
					{
						mstore(add(dst, i), mload(add(src, i)))
					}
					<?cleanup>mstore(add(dst, length), 0)</cleanup>
				)")
				("cleanup", _cleanup)
				.render();
		}
	});
}

std::string YulUtilFunctions::copyLiteralToMemoryFunction(std::string const& _literal)
{