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golang 1.24 'iter'

This commit is contained in:
Jeff Carr 2025-03-19 06:39:51 -05:00
parent 444c840c62
commit 3f296ee1d5
4 changed files with 53 additions and 15 deletions
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5
generate.go
View File

@ -187,6 +187,11 @@ func (pb *Files) makeNewSortfile(pf *File) error {
if PARENT == VARNAME {
funcdef := pmsg.addAllFunc(wSort, PARENT, CHILD, VARNAME)
log.Printf("Adding %s\n", funcdef)
FRUITS := PARENT
FRUIT := CHILD
funcdef = pmsg.addIterAll(wSort, FRUITS, FRUIT)
log.Printf("Adding %s\n", funcdef)
}
/*

17
generateGui.go
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@ -282,9 +282,14 @@ func guiStringFuncs(w io.Writer, ZOOPB string, FRUITS string, FRUIT string) {
fmt.Fprintln(w, " r := new(guipb.StringRow)")
fmt.Fprintln(w, " r.Header = new(guipb.Widget)")
fmt.Fprintln(w, " r.Header.Name = name")
/*
fmt.Fprintln(w, " all := mt.x.All()")
fmt.Fprintln(w, " for all.Scan() {")
fmt.Fprintln(w, " m := all.Next()")
*/
fmt.Fprintln(w, " for m := range mt.x.IterAll() {")
fmt.Fprintln(w, " r.Vals = append(r.Vals, sf.f(m))")
fmt.Fprintln(w, " // log.Info(\""+ZOOPB+": adding\", name, r.Vals)")
fmt.Fprintln(w, " }")
@ -303,9 +308,7 @@ func guiStringFuncs(w io.Writer, ZOOPB string, FRUITS string, FRUIT string) {
fmt.Fprintln(w, " r := new(guipb.ButtonRow)")
fmt.Fprintln(w, " r.Header = new(guipb.Widget)")
fmt.Fprintln(w, " r.Header.Name = name")
fmt.Fprintln(w, " all := mt.x.All()")
fmt.Fprintln(w, " for all.Scan() {")
fmt.Fprintln(w, " m := all.Next()")
fmt.Fprintln(w, " for m := range mt.x.IterAll() {")
fmt.Fprintln(w, " r.Vals = append(r.Vals, sf.f(m))")
fmt.Fprintln(w, " // log.Info(\""+ZOOPB+": adding\", name, r.Vals)")
fmt.Fprintln(w, " }")
@ -324,9 +327,7 @@ func guiStringFuncs(w io.Writer, ZOOPB string, FRUITS string, FRUIT string) {
fmt.Fprintln(w, " r := new(guipb.IntRow)")
fmt.Fprintln(w, " r.Header = new(guipb.Widget)")
fmt.Fprintln(w, " r.Header.Name = name")
fmt.Fprintln(w, " all := mt.x.All()")
fmt.Fprintln(w, " for all.Scan() {")
fmt.Fprintln(w, " m := all.Next()")
fmt.Fprintln(w, " for m := range mt.x.IterAll() {")
fmt.Fprintln(w, " r.Vals = append(r.Vals, int64(sf.f(m)))")
fmt.Fprintln(w, " // log.Info(\""+ZOOPB+": adding\", name, r.Vals)")
fmt.Fprintln(w, " }")
@ -345,9 +346,7 @@ func guiStringFuncs(w io.Writer, ZOOPB string, FRUITS string, FRUIT string) {
fmt.Fprintln(w, " r := new(guipb.TimeRow)")
fmt.Fprintln(w, " r.Header = new(guipb.Widget)")
fmt.Fprintln(w, " r.Header.Name = name")
fmt.Fprintln(w, " all := mt.x.All()")
fmt.Fprintln(w, " for all.Scan() {")
fmt.Fprintln(w, " m := all.Next()")
fmt.Fprintln(w, " for m := range mt.x.IterAll() {")
fmt.Fprintln(w, " t := sf.f(m)")
fmt.Fprintln(w, " r.Vals = append(r.Vals, timestamppb.New(t)) // convert to protobuf time")
fmt.Fprintln(w, " // log.Info(\""+ZOOPB+": adding\", name, r.Vals)")

2
generateHeader.go
View File

@ -45,7 +45,7 @@ func header(w io.Writer, pf *File) {
fmt.Fprintln(w, "import (")
fmt.Fprintln(w, " \"sort\"")
fmt.Fprintln(w, " \"sync\"")
fmt.Fprintln(w, " \"go.wit.com/iter // this might not work. forgive me.\"")
fmt.Fprintln(w, " \"iter\"")
fmt.Fprintln(w, ")")
fmt.Fprintln(w, "")
}

38
generateSort.go
View File

@ -116,12 +116,28 @@ func (msg *MsgName) newSortBy(w io.Writer, STRUCT, ITER, SORTNAME, SORTBY, SELEC
return funcdef
}
func (msg *MsgName) addIterAllFunc(w io.Writer, FRUIT, APPLE, APPLES string) string {
funcdef := "func (x *" + FRUIT + ") All() *" + APPLE + "Iterator {"
fmt.Fprintln(w, funcdef)
fmt.Fprintln(w, " "+APPLE+"Pointers := x.selectAll"+APPLES+"()")
fmt.Fprintln(w, "")
// should this be 'new' or 'New' ? Does it matter? I think it's totally internal here. I think there are only 3 places
// in this file where it is "new or "New". I changed it to lower case 2025.01.12
fmt.Fprintln(w, " iterator := new"+APPLE+"Iterator("+APPLE+"Pointers)")
fmt.Fprintln(w, " return iterator")
fmt.Fprintln(w, "}")
fmt.Fprintln(w, "")
return funcdef
}
func (msg *MsgName) addIterBy(w io.Writer, FRUITS, FRUIT, APPLE, SORTNAME string) string {
fmt.Fprintln(w, "// for range syntax using iter package")
fmt.Fprintln(w, "// 'for x := range' syntax using the awesome golang 1.24 'iter'")
fmt.Fprintln(w, "func (x *"+FRUITS+") IterBy"+APPLE+"() iter.Seq[*"+FRUIT+"] {")
fmt.Fprintln(w, " items := x.selectAll"+FRUITS+"()")
fmt.Fprintln(w, " sort.Sort("+SORTNAME+"(items))")
fmt.Fprintln(w, " log.Println(\"Made Iter.Seq[] with length\", len(items))")
fmt.Fprintln(w, " // log.Println(\"Made Iter.Seq[] with length\", len(items))")
fmt.Fprintln(w, " return func(yield func(*"+FRUIT+") bool) {")
fmt.Fprintln(w, " for _, v := range items {")
fmt.Fprintln(w, " if !yield(v) {")
@ -134,6 +150,24 @@ func (msg *MsgName) addIterBy(w io.Writer, FRUITS, FRUIT, APPLE, SORTNAME string
return ""
}
func (msg *MsgName) addIterAll(w io.Writer, FRUITS, FRUIT string) string {
funcdef := "func (x *" + FRUITS + ") IterAll() iter.Seq[*" + FRUIT + "] {"
fmt.Fprintln(w, "// 'for x := range' syntax using the awesome golang 1.24 'iter'")
fmt.Fprintln(w, funcdef)
fmt.Fprintln(w, " items := x.selectAll"+FRUITS+"()")
fmt.Fprintln(w, " // log.Println(\"Made All() Iter.Seq[] with length\", len(items))")
fmt.Fprintln(w, " return func(yield func(*"+FRUIT+") bool) {")
fmt.Fprintln(w, " for _, v := range items {")
fmt.Fprintln(w, " if !yield(v) {")
fmt.Fprintln(w, " return")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, "}")
return funcdef
}
func (msg *MsgName) addAllFunc(w io.Writer, FRUIT, APPLE, APPLES string) string {
funcdef := "func (x *" + FRUIT + ") All() *" + APPLE + "Iterator {"