Struct ReadOnlyListConverter<T, TConverter>

Namespace

DynaSharp.Serialization

Assembly

DynaSharp.dll

Converts IReadOnlyList<T> to and from a list value (L), each element in the form of TConverter.

public readonly struct ReadOnlyListConverter<T, TConverter> : IDynamoDbConverter<IReadOnlyList<T>> where TConverter : IDynamoDbConverter<T>

Type Parameters

T

The element type.

TConverter

The converter of the elements.

Implements

IDynamoDbConverter<IReadOnlyList<T>>

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.GetType()

object.Equals(object, object)

object.ReferenceEquals(object, object)

Remarks

See ArrayConverter<T, TConverter> for what a list may hold. A list that is read is an array of exactly its length, the cheapest read-only list; code that casts it back to an array can change it. Infrastructure: compatible only within a package version, because generated code comes from the generator of the same package. A converter of your own may call it, and then follows the package: build it again with a new version.

Explicit Interface Implementations

Read(ref DynamoDbReader, AttributeType)

Reads the attribute value the reader is positioned on.

static IReadOnlyList<T> Read(ref DynamoDbReader reader, AttributeType type)

Parameters

reader DynamoDbReader

The reader, positioned on the value after ReadStartAttribute() or TryReadStartAttribute(out AttributeType). The caller reads the closing brace afterwards, so the converter must read the value completely (all elements of a list, map or set) and nothing more.

type AttributeType

The DynamoDB type of the value. Check it with Expect(AttributeType, AttributeType), which throws JsonException for types the converter does not support. Null is passed to the converter too, so it can map it to null where that makes sense.

Returns

IReadOnlyList<T>

The value.

Exceptions

JsonException

type is not List, or an element fails to read.

Write(DynamoDbWriter, IReadOnlyList<T>)

Writes a value as one complete attribute value, for example with WriteNumber<T>(T).

static void Write(DynamoDbWriter writer, IReadOnlyList<T> value)

Parameters

writer DynamoDbWriter

The writer, positioned where a value is expected (after an attribute name, or inside a list). It is a ref struct, so it is never null and needs no check.

value IReadOnlyList<T>

The value.

Exceptions

ArgumentNullException

value is null.