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package com.jsoniter;

public class Slice {

public byte[] data;

public int head;

public int len;

public Slice(byte[] data, int head, int len) {

this.data = data;

this.head = head;

this.len = len;

}

public static Slice make(int len, int cap) {

return new Slice(new byte[cap], 0, len);

}

public static Slice make(String str) {

byte[] data = str.getBytes();

return new Slice(data, 0, data.length);

}

public final void append(byte c) {

if (len == data.length) {

byte[] newData = new byte[data.length * 2];

System.arraycopy(data, 0, newData, 0, data.length);

data = newData;

}

data[len++] = c;

}

public final byte at(int pos) {

return data[head+pos];

}

@Override

public final boolean equals(Object o) {

if (this == o) return true;

if (o == null || getClass() != o.getClass()) return false;

Slice slice = (Slice) o;

if (len != slice.len) return false;

for (int i = head; i < len; i++)

if (data[i] != slice.data[i])

return false;

return true;

}

@Override

public final int hashCode() {

int result = 1;

for (int i = head; i < len; i++) {

result = 31 * result + data[i];

}

return result;

}

@Override

public final String toString() {

return new String(data, head, len);

}

}