Method EncodePackedInt32

encoder.go:138–151

EncodePackedInt32 writes a list of 32-bit integers to the buffer using packed encoding, preceded by the varint-encoded tag key. This operation is O(n^2) because we have to traverse the list of values to calculate the total encoded size and write that size *before* the actual encoded values.

(tag int, vs []int32)

// This operation is O(n^2) because we have to traverse the list of values to calculate the total
// encoded size and write that size *before* the actual encoded values.
func (e *Encoder) EncodePackedInt32(tag int, vs []int32) {
	if len(vs) == 0 {
		return
	}
	e.offset += EncodeTag(e.p[e.offset:], tag, WireTypeLengthDelimited)
	sz := 0
	for _, v := range vs {
		sz += SizeOfVarint(uint64(v))
	}
	e.offset += EncodeVarint(e.p[e.offset:], uint64(sz))
	for _, v := range vs {
		e.offset += EncodeVarint(e.p[e.offset:], uint64(v))
	}
}

// EncodePackedInt64 writes a list of 64-bit integers to the buffer using packed encoding, preceded by
// the varint-encoded tag key.