Method validatorFunction

libsolidity/codegen/YulUtilFunctions.cpp:4059–4111

}

std::string YulUtilFunctions::validatorFunction(Type const& _type, bool _revertOnFailure)
{
	std::string functionName = std::string("validator_") + (_revertOnFailure ? "revert_" : "assert_") + _type.identifier();
	return m_functionCollector.createFunction(functionName, [&]() {
		Whiskers templ(R"(
			function <functionName>(value) {
				if iszero(<condition>) { <failure> }
			}
		)");
		templ("functionName", functionName);
		PanicCode panicCode = PanicCode::Generic;

		switch (_type.category())
		{
		case Type::Category::Address:
		case Type::Category::Integer:
		case Type::Category::RationalNumber:
		case Type::Category::Bool:
		case Type::Category::FixedPoint:
		case Type::Category::Function:
		case Type::Category::Array:
		case Type::Category::Struct:
		case Type::Category::Mapping:
		case Type::Category::FixedBytes:
		case Type::Category::Contract:
		case Type::Category::UserDefinedValueType:
		{
			templ("condition", "eq(value, " + cleanupFunction(_type) + "(value))");
			break;
		}
		case Type::Category::Enum:
		{
			size_t members = dynamic_cast<EnumType const&>(_type).numberOfMembers();
			solAssert(members > 0, "empty enum should have caused a parser error.");
			panicCode = PanicCode::EnumConversionError;
			templ("condition", "lt(value, " + std::to_string(members) + ")");
			break;
		}
		case Type::Category::InaccessibleDynamic:
			templ("condition", "1");
			break;
		default:
			solAssert(false, "Validation of type " + _type.identifier() + " requested.");
		}

		if (_revertOnFailure)
			templ("failure", "revert(0, 0)");
		else
			templ("failure", panicFunction(panicCode) + "()");

		return templ.render();
	});
}

std::string YulUtilFunctions::packedHashFunction(
	std::vector<Type const*> const& _givenTypes,