JsonPrimitive.cs :  » 2.6.4-mono-.net-core » System.Json » System » Json » C# / CSharp Open Source

using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;

namespace System.Json{
  public class JsonPrimitive : JsonValue
  {
    object value;

    public JsonPrimitive (bool value)
    {
      this.value = value;
    }

    public JsonPrimitive (byte value)
    {
      this.value = value;
    }

    public JsonPrimitive (char value)
    {
      this.value = value;
    }

    public JsonPrimitive (decimal value)
    {
      this.value = value;
    }

    public JsonPrimitive (double value)
    {
      this.value = value;
    }

    public JsonPrimitive (float value)
    {
      this.value = value;
    }

    public JsonPrimitive (int value)
    {
      this.value = value;
    }

    public JsonPrimitive (long value)
    {
      this.value = value;
    }

    public JsonPrimitive (sbyte value)
    {
      this.value = value;
    }

    public JsonPrimitive (short value)
    {
      this.value = value;
    }

    public JsonPrimitive (string value)
    {
      this.value = value;
    }

    public JsonPrimitive (DateTime value)
    {
      this.value = value;
    }

    public JsonPrimitive (uint value)
    {
      this.value = value;
    }

    public JsonPrimitive (ulong value)
    {
      this.value = value;
    }

    public JsonPrimitive (ushort value)
    {
      this.value = value;
    }

    public JsonPrimitive (DateTimeOffset value)
    {
      this.value = value;
    }

    public JsonPrimitive (Guid value)
    {
      this.value = value;
    }

    public JsonPrimitive (TimeSpan value)
    {
      this.value = value;
    }

    public JsonPrimitive (Uri value)
    {
      this.value = value;
    }

    internal object Value {
      get { return value; }
    }

    public override JsonType JsonType {
      get {
        // FIXME: what should we do for null? Handle it as null so far.
        if (value == null)
          return JsonType.String;

        switch (Type.GetTypeCode (value.GetType ())) {
        case TypeCode.Boolean:
          return JsonType.Boolean;
        case TypeCode.Char:
        case TypeCode.String:
        case TypeCode.DateTime:
        case TypeCode.Object: // DateTimeOffset || Guid || TimeSpan || Uri
          return JsonType.String;
        default:
          return JsonType.Number;
        }
      }
    }

    static readonly byte [] true_bytes = Encoding.UTF8.GetBytes ("true");
    static readonly byte [] false_bytes = Encoding.UTF8.GetBytes ("false");

    public override void Save (Stream stream)
    {
      switch (JsonType) {
      case JsonType.Boolean:
        if ((bool) value)
          stream.Write (true_bytes, 0, 4);
        else
          stream.Write (false_bytes, 0, 5);
        break;
      case JsonType.String:
        stream.WriteByte ((byte) '\"');
        byte [] bytes = Encoding.UTF8.GetBytes (EscapeString (value.ToString ()));
        stream.Write (bytes, 0, bytes.Length);
        stream.WriteByte ((byte) '\"');
        break;
      default:
        bytes = Encoding.UTF8.GetBytes (GetFormattedString ());
        stream.Write (bytes, 0, bytes.Length);
        break;
      }
    }

    internal string GetFormattedString ()
    {
      switch (JsonType) {
      case JsonType.String:
        if (value is string || value == null)
          return (string) value;
        throw new NotImplementedException ("GetFormattedString from value type " + value.GetType ());
      case JsonType.Number:
        return ((IFormattable) value).ToString ("G", NumberFormatInfo.InvariantInfo);
      default:
        throw new InvalidOperationException ();
      }
    }
  }
}