Patches, test, comments

This commit is contained in:
Roy Crihfield 2022-01-12 19:57:23 -06:00
parent 89b3064c00
commit 6bba614243
3 changed files with 26 additions and 5 deletions

5
go.mod
View File

@ -2,6 +2,5 @@ module github.com/vulcanize/go-eth-state-node-iterator
go 1.13
require github.com/ethereum/go-ethereum v1.10.9
replace github.com/ethereum/go-ethereum v1.10.9 => github.com/vulcanize/go-ethereum v1.10.9-statediff-0.0.27
require github.com/ethereum/go-ethereum v1.9.14
replace github.com/ethereum/go-ethereum v1.9.14 => github.com/vulcanize/go-ethereum v1.10.14-statediff-0.0.29

View File

@ -112,14 +112,16 @@ func (gen *prefixGenerator) HasNext() bool {
}
func (gen *prefixGenerator) Next() {
// increment the cursor, and
gen.current[gen.stepIndex] += gen.step
overflow := false
for ix := 0; ix < len(gen.current); ix++ {
rix := len(gen.current) - 1 - ix // reverse
if overflow {
rix := len(gen.current) - 1 - ix // index in prefix is reverse
if overflow { // apply overflow
gen.current[rix]++
overflow = false
}
// detect overflow at this index
if rix != 0 && gen.current[rix] > 0xf {
gen.current[rix] = 0
overflow = true

20
iterator_test.go Normal file
View File

@ -0,0 +1,20 @@
package iterator_test
import (
"testing"
iter "github.com/vulcanize/go-eth-state-node-iterator"
)
func TestMakePaths(t *testing.T) {
var prefix []byte
for i := 0; i < 4; i++ {
nbins := uint(1) << i
paths := iter.MakePaths(prefix, nbins)
t.Log(paths)
if len(paths) != int(nbins) {
t.Logf("failed: TestMakePaths")
t.Error("wrong number of paths", len(paths))
}
}
}