using System.Runtime.CompilerServices; using System.Text.Json.Serialization.Metadata; namespace System.Text.Json.Serialization { [System.Runtime.CompilerServices.NullableContext(1)] [System.Runtime.CompilerServices.Nullable(0)] public abstract class JsonSerializerContext : IJsonTypeInfoResolver { private JsonSerializerOptions _options; public JsonSerializerOptions Options { get { JsonSerializerOptions jsonSerializerOptions = _options; if (jsonSerializerOptions == null) { jsonSerializerOptions = new JsonSerializerOptions { TypeInfoResolver = this }; jsonSerializerOptions.MakeReadOnly(); _options = jsonSerializerOptions; } return jsonSerializerOptions; } } [System.Runtime.CompilerServices.Nullable(2)] protected abstract JsonSerializerOptions GeneratedSerializerOptions { [System.Runtime.CompilerServices.NullableContext(2)] get; } internal bool CanUseFastPathSerializationLogic(JsonSerializerOptions options) { if (GeneratedSerializerOptions != null && options.Converters.Count == 0 && options.Encoder == null && (options.NumberHandling & (JsonNumberHandling.WriteAsString | JsonNumberHandling.AllowNamedFloatingPointLiterals)) == JsonNumberHandling.Strict && options.ReferenceHandlingStrategy == ReferenceHandlingStrategy.None && !options.IgnoreNullValues && options.DefaultIgnoreCondition == GeneratedSerializerOptions.DefaultIgnoreCondition && options.IgnoreReadOnlyFields == GeneratedSerializerOptions.IgnoreReadOnlyFields && options.IgnoreReadOnlyProperties == GeneratedSerializerOptions.IgnoreReadOnlyProperties && options.IncludeFields == GeneratedSerializerOptions.IncludeFields && options.PropertyNamingPolicy == GeneratedSerializerOptions.PropertyNamingPolicy && options.DictionaryKeyPolicy == GeneratedSerializerOptions.DictionaryKeyPolicy) return options.WriteIndented == GeneratedSerializerOptions.WriteIndented; return false; } [System.Runtime.CompilerServices.NullableContext(2)] protected JsonSerializerContext(JsonSerializerOptions options) { if (options != null) { options.VerifyMutable(); options.TypeInfoResolver = this; options.MakeReadOnly(); _options = options; } } [return: System.Runtime.CompilerServices.Nullable(2)] public abstract JsonTypeInfo GetTypeInfo(Type type); JsonTypeInfo IJsonTypeInfoResolver.GetTypeInfo(Type type, JsonSerializerOptions options) { if (options != null && options != _options) ThrowHelper.ThrowInvalidOperationException_ResolverTypeInfoOptionsNotCompatible(); return GetTypeInfo(type); } } }