Method Grow

pkg/sql/tokenizer/buffer.go:121–130

Grow ensures the buffer has enough capacity for n additional bytes. If the buffer doesn't have enough spare capacity, a new larger buffer is allocated with doubled capacity plus n bytes. The old buffer is returned to the pool. Growth Strategy: New capacity = 2 * old capacity + n This exponential g

(buf []byte, n int)

//	buf = pool.Grow(buf, 256)  // Ensure 256 bytes available
//	buf = append(buf, data...)  // Append without reallocation
func (p *BufferPool) Grow(buf []byte, n int) []byte {
	if cap(buf)-len(buf) < n {
		// Create new buffer with doubled capacity
		newBuf := make([]byte, len(buf), 2*cap(buf)+n)
		copy(newBuf, buf)
		p.Put(buf) // Return old buffer to pool
		return newBuf
	}
	return buf
}