rename filesv0.5.26

1 files changed, 241 insertions, 0 deletions

diff --git a/generateSortFuncs.go b/generateSortFuncs.go
new file mode 100644
index 0000000..305896e
--- /dev/null
+++ b/generateSortFuncs.go
@@ -0,0 +1,241 @@
+// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
+// Use of this source code is governed by the GPL 3.0
+
+package main
+
+import (
+	"fmt"
+	"io"
+)
+
+func (msg *MsgName) newScannerAll(w io.Writer, FRUIT, APPLE, APPLES, LOCKold string) string {
+	LOCK := msg.getLockname("x")
+
+	funcdef := "func (x *" + FRUIT + ") all" + APPLES + "() []*" + APPLE + " {"
+
+	fmt.Fprintln(w, "// safely returns a slice of pointers to the FRUIT protobufs")
+	fmt.Fprintln(w, funcdef)
+	fmt.Fprintln(w, "	"+LOCK+".RLock()")
+	fmt.Fprintln(w, "	defer "+LOCK+".RUnlock()")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	// Create a new slice to hold pointers to each FRUIT")
+	fmt.Fprintln(w, "	var tmp []*"+APPLE+"")
+	fmt.Fprintln(w, "	tmp = make([]*"+APPLE+", len(x."+APPLES+"))")
+	fmt.Fprintln(w, "	for i, p := range x."+APPLES+" {")
+	fmt.Fprintln(w, "		tmp[i] = p // Copy pointers for safe iteration")
+	fmt.Fprintln(w, "	}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	return tmp")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+
+	return funcdef
+}
+
+// only make one of these for each message in the protobuf file
+func newScannerDefines(w io.Writer, msg *MsgName) string {
+	if !msg.NeedIter {
+		return "iter already done for " + msg.Name
+	}
+	msg.NeedIter = false
+	APPLE := msg.Name
+
+	// should this be 'new' or 'New' ? Does it matter? I think it's totally internal here
+	// in this file where it is "new or "New". I changed it to lower case 2025.01.12
+	funcdef := "func new" + APPLE + "Scanner(things []*" + APPLE + ") *" + APPLE + "Scanner"
+
+	fmt.Fprintln(w, "// DEFINE THE", APPLE, "SCANNER.")
+	fmt.Fprintln(w, "// itializes a new scanner.")
+	fmt.Fprintln(w, funcdef, "{")
+	fmt.Fprintln(w, "	return &"+APPLE+"Scanner{things: things}")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "type "+APPLE+"Scanner struct {")
+	fmt.Fprintln(w, "	sync.Mutex")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	things []*"+APPLE+"")
+	fmt.Fprintln(w, "	index  int")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "func (it *"+APPLE+"Scanner) Scan() bool {")
+	fmt.Fprintln(w, "	if it.index >= len(it.things) {")
+	fmt.Fprintln(w, "		return false")
+	fmt.Fprintln(w, "	}")
+	fmt.Fprintln(w, "	it.Lock()")
+	fmt.Fprintln(w, "	it.index++")
+	fmt.Fprintln(w, "	it.Unlock()")
+	fmt.Fprintln(w, "	return true")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "// Next() returns the next thing in the array")
+	fmt.Fprintln(w, "func (it *"+APPLE+"Scanner) Next() *"+APPLE+" {")
+	fmt.Fprintln(w, "	if it.things[it.index-1] == nil {")
+	fmt.Fprintln(w, "		fmt.Println(\"Next() error in "+APPLE+"Scanner\", it.index)")
+	fmt.Fprintln(w, "	}")
+	fmt.Fprintln(w, "	return it.things[it.index-1]")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "// END DEFINE THE SCANNER")
+	fmt.Fprintln(w, "")
+
+	return funcdef
+}
+
+// maybe there are better ways in GO now adays // that's fine though. this is easy to read
+// TODO; figure out what types this actually works on
+// TODO; add timestamppb compare
+func (msg *MsgName) newSortType(w io.Writer, STRUCT, VARNAME string) string {
+	SORTNAME := "sort" + STRUCT + VARNAME
+
+	// Can these be lower case? Should they be lower case? maybe sort.Sort() requires upper case?
+	fmt.Fprintln(w, "// sort struct by", VARNAME)
+	fmt.Fprintln(w, "type "+SORTNAME+" []*"+STRUCT+"")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "func (a "+SORTNAME+") Len() int           { return len(a) }")
+	fmt.Fprintln(w, "func (a "+SORTNAME+") Less(i, j int) bool { return a[i]."+VARNAME+" < a[j]."+VARNAME+" }")
+	fmt.Fprintln(w, "func (a "+SORTNAME+") Swap(i, j int)      { a[i], a[j] = a[j], a[i] }")
+	fmt.Fprintln(w, "")
+
+	return "type " + STRUCT + VARNAME + " []*" + STRUCT + "  // { return a[i]." + VARNAME + " < a[j]." + VARNAME + " }"
+}
+
+// provdes a sorted iter. Does not modify the protobuf
+func (msg *MsgName) newSortBy(w io.Writer, STRUCT, ITER, SORTNAME, SORTBY, SELECT, VARNAME string) string {
+	funcdef := "func (x *" + STRUCT + ") " + SORTBY + "() *" + ITER + "Scanner"
+
+	fmt.Fprintln(w, funcdef, "{")
+	fmt.Fprintln(w, "	// copy the pointers as fast as possible.")
+	fmt.Fprintln(w, "	things := x."+SELECT+"()")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "// todo: try slices.SortFunc() instead to see what happens")
+	fmt.Fprintln(w, "	sort.Sort("+SORTNAME+"(things))")
+	fmt.Fprintln(w, "//    slices.SortFunc(things, func(a, b *"+STRUCT+") bool {")
+	fmt.Fprintln(w, "//        return a."+VARNAME+" < b."+VARNAME+" // Sort by ??. let the compiler work it out??")
+	fmt.Fprintln(w, "//    })")
+	// should this be 'new' or 'New' ? Does it matter? I think it's totally internal here
+	// in this file where it is "new or "New". I changed it to lower case 2025.01.12
+	fmt.Fprintln(w, "	return new"+ITER+"Scanner(things)")
+	fmt.Fprintln(w, "}")
+
+	return funcdef
+}
+
+// sorts the protobuf in place.
+func (msg *MsgName) newSort(w io.Writer, STRUCT, FUNCNAME, SORTNAME, LOCK string) string {
+	funcdef := "func (pb *" + STRUCT + ") " + FUNCNAME + "() "
+
+	fmt.Fprintln(w, funcdef, "{")
+	fmt.Fprintln(w, "	"+LOCK+".Lock()")
+	fmt.Fprintln(w, "	defer "+LOCK+".Unlock()")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	sort.Sort("+SORTNAME+"(pb."+STRUCT+"))")
+	fmt.Fprintln(w, "}")
+
+	return funcdef
+}
+
+func (msg *MsgName) addIterAllFunc(w io.Writer, FRUIT, APPLE, APPLES string) string {
+	funcdef := "func (x *" + FRUIT + ") All() *" + APPLE + "Scanner {"
+
+	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, "	scanner := new"+APPLE+"Scanner("+APPLE+"Pointers)")
+	fmt.Fprintln(w, "	return scanner")
+	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 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, "	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 ""
+}
+
+func (msg *MsgName) addIterAll(w io.Writer, FRUITS, FRUIT string) string {
+	funcdef := "func (x *" + FRUITS + ") IterAll() iter.Seq[*" + FRUIT + "] {"
+	fmt.Fprintln(w, "// Iterate '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 + "Scanner {"
+
+	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, "	scanner := new"+APPLE+"Scanner("+APPLE+"Pointers)")
+	fmt.Fprintln(w, "	return scanner")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+
+	return funcdef
+}
+
+func (msg *MsgName) addLenFunc(w io.Writer, FRUIT, APPLES, LOCKold string) string {
+	LOCK := msg.getLockname("x")
+
+	funcdef := "func (x *" + FRUIT + ") Len() int {"
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, funcdef)
+	fmt.Fprintln(w, "	"+LOCK+".RLock()")
+	fmt.Fprintln(w, "	defer "+LOCK+".RUnlock()")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	return len(x."+APPLES+")")
+	fmt.Fprintln(w, "}")
+	fmt.Fprintln(w, "")
+
+	return funcdef
+}
+
+func (msg *MsgName) addSelectAll(w io.Writer, FRUIT, APPLE, APPLES, LOCKold string) string {
+	LOCK := msg.getLockname("x")
+
+	funcdef := "func (x *" + FRUIT + ") selectAll" + APPLES + "() []*" + APPLE
+	fmt.Fprintln(w, "// safely returns a slice of pointers to the "+APPLE+" protobufs")
+	fmt.Fprintln(w, funcdef, "{")
+	fmt.Fprintln(w, "	"+LOCK+".RLock()")
+	fmt.Fprintln(w, "	defer "+LOCK+".RUnlock()")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	// Create a new slice to hold pointers to each "+APPLE+"")
+	fmt.Fprintln(w, "	var tmp []*"+APPLE+"")
+	fmt.Fprintln(w, "	tmp = make([]*"+APPLE+", len(x."+APPLES+"))")
+	fmt.Fprintln(w, "	for i, p := range x."+APPLES+" {")
+	fmt.Fprintln(w, "		tmp[i] = p // Copy pointers for safe iteration")
+	fmt.Fprintln(w, "	}")
+	fmt.Fprintln(w, "")
+	fmt.Fprintln(w, "	return tmp")
+	fmt.Fprintln(w, "}")
+
+	return funcdef
+}