InputFieldList SchemaLoader::getInputFields()

in src/SchemaLoader.cpp [1383:1442]

• 50 lines of code
• 14 McCabe index (conditional complexity)

InputFieldList SchemaLoader::getInputFields(const peg::ast_node::children_t& fields)
{
	InputFieldList inputFields;

	for (const auto& fieldDefinition : fields)
	{
		InputField field;
		TypeVisitor fieldType;
		service::schema_location defaultValueLocation;

		for (const auto& child : fieldDefinition->children)
		{
			if (child->is_type<peg::argument_name>())
			{
				field.name = child->string_view();
				field.cppName = getSafeCppName(field.name);
			}
			else if (child->is_type<peg::named_type>() || child->is_type<peg::list_type>()
				|| child->is_type<peg::nonnull_type>())
			{
				fieldType.visit(*child);
			}
			else if (child->is_type<peg::default_value>())
			{
				const auto position = child->begin();
				DefaultValueVisitor defaultValue;

				defaultValue.visit(*child->children.back());
				field.defaultValue = defaultValue.getValue();
				field.defaultValueString = child->children.back()->string_view();

				defaultValueLocation = { position.line, position.column };
			}
			else if (child->is_type<peg::description>() && !child->children.empty())
			{
				field.description = child->children.front()->unescaped_view();
			}
		}

		std::tie(field.type, field.modifiers) = fieldType.getType();
		field.position = fieldDefinition->begin();

		if (!field.defaultValueString.empty() && field.defaultValue.type() == response::Type::Null
			&& (field.modifiers.empty()
				|| field.modifiers.front() != service::TypeModifier::Nullable))
		{
			std::ostringstream error;

			error << "Expected Non-Null default value for field name: " << field.name
				  << " line: " << defaultValueLocation.line
				  << " column: " << defaultValueLocation.column;

			throw std::runtime_error(error.str());
		}

		inputFields.push_back(std::move(field));
	}

	return inputFields;
}