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|
package main
import (
"io"
"text/template"
)
const copySlicedRaw = `func copySliced(dest *Dense, dstart, dend int, src *Dense, sstart, send int) int{
if dest.t != src.t {
panic("Cannot copy arrays of different types")
}
if src.IsMasked(){
mask:=dest.mask
if cap(dest.mask) < dend{
mask = make([]bool, dend)
}
copy(mask, dest.mask)
dest.mask=mask
copy(dest.mask[dstart:dend], src.mask[sstart:send])
}
switch dest.t {
{{range .Kinds -}}
{{if isParameterized .}}
{{else -}}
case {{reflectKind .}}:
return copy(dest.{{sliceOf .}}[dstart:dend], src.{{sliceOf .}}[sstart:send])
{{end -}}
{{end -}}
default:
dv := reflect.ValueOf(dest.v)
dv = dv.Slice(dstart, dend)
sv := reflect.ValueOf(src.v)
sv = sv.Slice(sstart, send)
return reflect.Copy(dv, sv)
}
}
`
const copyIterRaw = `func copyDenseIter(dest, src *Dense, diter, siter *FlatIterator) (int, error) {
if dest.t != src.t {
panic("Cannot copy arrays of different types")
}
if diter == nil && siter == nil && !dest.IsMaterializable() && !src.IsMaterializable() {
return copyDense(dest, src), nil
}
if diter == nil {
diter = newFlatIterator(&dest.AP)
}
if siter == nil {
siter = newFlatIterator(&src.AP)
}
isMasked:= src.IsMasked()
if isMasked{
if cap(dest.mask)<src.DataSize(){
dest.mask=make([]bool, src.DataSize())
}
dest.mask=dest.mask[:dest.DataSize()]
}
dt := dest.t
var i, j, count int
var err error
for {
if i, err = diter.Next() ; err != nil {
if err = handleNoOp(err); err != nil{
return count, err
}
break
}
if j, err = siter.Next() ; err != nil {
if err = handleNoOp(err); err != nil{
return count, err
}
break
}
if isMasked{
dest.mask[i]=src.mask[j]
}
switch dt {
{{range .Kinds -}}
{{if isParameterized . -}}
{{else -}}
case {{reflectKind .}}:
dest.{{setOne .}}(i, src.{{getOne .}}(j))
{{end -}}
{{end -}}
default:
dest.Set(i, src.Get(j))
}
count++
}
return count, err
}
`
const sliceRaw = `// the method assumes the AP and metadata has already been set and this is simply slicing the values
func (t *Dense) slice(start, end int) {
switch t.t {
{{range .Kinds -}}
{{if isParameterized .}}
{{else -}}
case {{reflectKind .}}:
data := t.{{sliceOf .}}[start:end]
t.fromSlice(data)
{{end -}}
{{end -}}
default:
v := reflect.ValueOf(t.v)
v = v.Slice(start, end)
t.fromSlice(v.Interface())
}
}
`
var (
CopySliced *template.Template
CopyIter *template.Template
Slice *template.Template
)
func init() {
CopySliced = template.Must(template.New("copySliced").Funcs(funcs).Parse(copySlicedRaw))
CopyIter = template.Must(template.New("copyIter").Funcs(funcs).Parse(copyIterRaw))
Slice = template.Must(template.New("slice").Funcs(funcs).Parse(sliceRaw))
}
func generateDenseGetSet(f io.Writer, generic Kinds) {
// CopySliced.Execute(f, generic)
// fmt.Fprintf(f, "\n\n\n")
// CopyIter.Execute(f, generic)
// fmt.Fprintf(f, "\n\n\n")
// Slice.Execute(f, generic)
// fmt.Fprintf(f, "\n\n\n")
}
|
