func (suite *DatabaseSuite) TestReadWriteCache() {
var v types.Value = types.Bool(true)
suite.NotEqual(hash.Hash{}, suite.ds.WriteValue(v))
r := suite.ds.WriteValue(v).TargetHash()
commit := NewCommit(v, types.NewSet(), types.EmptyStruct)
newDs, err := suite.ds.Commit("foo", commit)
suite.NoError(err)
suite.Equal(1, suite.cs.Writes-writesOnCommit)
v = newDs.ReadValue(r)
suite.True(v.Equals(types.Bool(true)))
}
func diffSummary(ch chan diffSummaryProgress, v1, v2 types.Value) {
if !v1.Equals(v2) {
if shouldDescend(v1, v2) {
switch v1.Type().Kind() {
case types.ListKind:
diffSummaryList(ch, v1.(types.List), v2.(types.List))
case types.MapKind:
diffSummaryMap(ch, v1.(types.Map), v2.(types.Map))
case types.SetKind:
diffSummarySet(ch, v1.(types.Set), v2.(types.Set))
case types.StructKind:
diffSummaryStructs(ch, v1.(types.Struct), v2.(types.Struct))
default:
panic("Unrecognized type in diff function: " + v1.Type().Describe() + " and " + v2.Type().Describe())
}
} else {
ch <- diffSummaryProgress{Adds: 1, Removes: 1, NewSize: 1, OldSize: 1}
}
}
}
func diff(w io.Writer, p types.Path, key, v1, v2 types.Value) {
if !v1.Equals(v2) {
if shouldDescend(v1, v2) {
switch v1.Type().Kind() {
case types.ListKind:
diffLists(w, p, v1.(types.List), v2.(types.List))
case types.MapKind:
diffMaps(w, p, v1.(types.Map), v2.(types.Map))
case types.SetKind:
diffSets(w, p, v1.(types.Set), v2.(types.Set))
case types.StructKind:
diffStructs(w, p, v1.(types.Struct), v2.(types.Struct))
default:
panic("Unrecognized type in diff function")
}
} else {
line(w, DEL, key, v1)
line(w, ADD, key, v2)
}
}
}
func Diff(w io.Writer, v1, v2 types.Value) (err error) {
dq := NewDiffQueue()
di := diffInfo{path: types.NewPath().AddField("/"), v1: v1, v2: v2}
dq.PushBack(di)
err = d.Try(func() {
for di, ok := dq.PopFront(); ok; di, ok = dq.PopFront() {
p, key, v1, v2 := di.path, di.key, di.v1, di.v2
v1.Type().Kind()
if v1 == nil && v2 != nil {
line(w, addPrefix, key, v2)
}
if v1 != nil && v2 == nil {
line(w, subPrefix, key, v1)
}
if !v1.Equals(v2) {
if !canCompare(v1, v2) {
line(w, subPrefix, key, v1)
line(w, addPrefix, key, v2)
} else {
switch v1.Type().Kind() {
case types.ListKind:
diffLists(dq, w, p, v1.(types.List), v2.(types.List))
case types.MapKind:
diffMaps(dq, w, p, v1.(types.Map), v2.(types.Map))
case types.SetKind:
diffSets(dq, w, p, v1.(types.Set), v2.(types.Set))
case types.StructKind:
diffStructs(dq, w, p, v1.(types.Struct), v2.(types.Struct))
default:
panic("Unrecognized type in diff function")
}
}
}
}
})
return
}
