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package com.eg.google.gson.internal;

import com.eg.google.gson.JsonElement;
import com.eg.google.gson.JsonIOException;
import com.eg.google.gson.JsonNull;
import com.eg.google.gson.JsonParseException;
import com.eg.google.gson.JsonSyntaxException;
import com.eg.google.gson.internal.bind.TypeAdapters;
import com.eg.google.gson.stream.JsonReader;
import com.eg.google.gson.stream.JsonWriter;
import com.eg.google.gson.stream.MalformedJsonException;

import java.io.EOFException;
import java.io.IOException;
import java.io.Writer;

import static com.eg.google.gson.internal.bind.TypeAdapters.JSON_ELEMENT;


public final class Streams
{
  public static JsonElement parse(JsonReader reader)
    throws JsonParseException
  {
     boolean isEmpty = true;
    try {
        reader.peek();
        isEmpty = false;
        return (JsonElement) JSON_ELEMENT.read(reader);

    }
    catch (EOFException e) {

        if (isEmpty) {
            return JsonNull.INSTANCE;
        }
        throw new JsonSyntaxException(e);
    } catch (MalformedJsonException e) {
        throw new JsonSyntaxException(e);
    } catch (IOException e) {
        throw new JsonIOException(e);
    } catch (NumberFormatException e) {
        throw new JsonSyntaxException(e);
    }
  }


  public static void write(JsonElement element, JsonWriter writer)
    throws IOException
  {
     TypeAdapters.JSON_ELEMENT.write(writer, element);
  }

  public static Writer writerForAppendable(Appendable appendable) {
    return (appendable instanceof Writer) ? (Writer)appendable : new AppendableWriter(appendable);
  }


  private static final class AppendableWriter
    extends Writer
  {
    private final Appendable appendable;

   private final CurrentWrite currentWrite = new CurrentWrite();

    private AppendableWriter(Appendable appendable) {
        this.appendable = appendable;
    }

    public void write(char[] chars, int offset, int length) throws IOException {
        this.currentWrite.chars = chars;
        this.appendable.append(this.currentWrite, offset, offset + length);
    }

    public void write(int i) throws IOException {
       this.appendable.append((char)i);
    }

    public void flush() {}

    public void close() {}

    static class CurrentWrite implements CharSequence
    {
      char[] chars;

      public int length() {
        return this.chars.length;
      }

        public char charAt(int i) {
            return this.chars[i];
        }

      public CharSequence subSequence(int start, int end) {
/* 111 */         return new String(this.chars, start, end - start);
      }
    }
  }
}