package pprof
type protobuf struct {
data []byte
tmp [16 ]byte
nest int
}
func (b *protobuf ) varint (x uint64 ) {
for x >= 128 {
b .data = append (b .data , byte (x )|0x80 )
x >>= 7
}
b .data = append (b .data , byte (x ))
}
func (b *protobuf ) length (tag int , len int ) {
b .varint (uint64 (tag )<<3 | 2 )
b .varint (uint64 (len ))
}
func (b *protobuf ) uint64 (tag int , x uint64 ) {
b .varint (uint64 (tag )<<3 | 0 )
b .varint (x )
}
func (b *protobuf ) uint64s (tag int , x []uint64 ) {
if len (x ) > 2 {
n1 := len (b .data )
for _ , u := range x {
b .varint (u )
}
n2 := len (b .data )
b .length (tag , n2 -n1 )
n3 := len (b .data )
copy (b .tmp [:], b .data [n2 :n3 ])
copy (b .data [n1 +(n3 -n2 ):], b .data [n1 :n2 ])
copy (b .data [n1 :], b .tmp [:n3 -n2 ])
return
}
for _ , u := range x {
b .uint64 (tag , u )
}
}
func (b *protobuf ) uint64Opt (tag int , x uint64 ) {
if x == 0 {
return
}
b .uint64 (tag , x )
}
func (b *protobuf ) int64 (tag int , x int64 ) {
u := uint64 (x )
b .uint64 (tag , u )
}
func (b *protobuf ) int64Opt (tag int , x int64 ) {
if x == 0 {
return
}
b .int64 (tag , x )
}
func (b *protobuf ) int64s (tag int , x []int64 ) {
if len (x ) > 2 {
n1 := len (b .data )
for _ , u := range x {
b .varint (uint64 (u ))
}
n2 := len (b .data )
b .length (tag , n2 -n1 )
n3 := len (b .data )
copy (b .tmp [:], b .data [n2 :n3 ])
copy (b .data [n1 +(n3 -n2 ):], b .data [n1 :n2 ])
copy (b .data [n1 :], b .tmp [:n3 -n2 ])
return
}
for _ , u := range x {
b .int64 (tag , u )
}
}
func (b *protobuf ) string (tag int , x string ) {
b .length (tag , len (x ))
b .data = append (b .data , x ...)
}
func (b *protobuf ) strings (tag int , x []string ) {
for _ , s := range x {
b .string (tag , s )
}
}
func (b *protobuf ) stringOpt (tag int , x string ) {
if x == "" {
return
}
b .string (tag , x )
}
func (b *protobuf ) bool (tag int , x bool ) {
if x {
b .uint64 (tag , 1 )
} else {
b .uint64 (tag , 0 )
}
}
func (b *protobuf ) boolOpt (tag int , x bool ) {
if !x {
return
}
b .bool (tag , x )
}
type msgOffset int
func (b *protobuf ) startMessage () msgOffset {
b .nest ++
return msgOffset (len (b .data ))
}
func (b *protobuf ) endMessage (tag int , start msgOffset ) {
n1 := int (start )
n2 := len (b .data )
b .length (tag , n2 -n1 )
n3 := len (b .data )
copy (b .tmp [:], b .data [n2 :n3 ])
copy (b .data [n1 +(n3 -n2 ):], b .data [n1 :n2 ])
copy (b .data [n1 :], b .tmp [:n3 -n2 ])
b .nest --
}
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