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// 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"
)
// generates Append()
// I like these functions the best.
func (msg *MsgName) simpleAppend(w io.Writer, FRUIT, APPLES, APPLE string) string {
LOCK := msg.getLockname("x")
funcdef := "func (x *" + FRUIT + ") Append(y *" + APPLE + ")"
// log.Printf("\t\t(x %s) APPEND(%s)\n", FRUIT, APPLE)
// append -- no check at all
fmt.Fprintln(w, "// just a simple Append() shortcut (but still uses the mutex lock)")
fmt.Fprintln(w, funcdef, "{")
fmt.Fprintln(w, " "+LOCK+".Lock()")
fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", y)")
fmt.Fprintln(w, "}")
fmt.Fprintln(w, "")
return funcdef
}
/* FIX THSE as Import()
func (msg *MsgName) appendUnique(w io.Writer, FRUIT, APPLES, APPLE string, COLORS []string) {
LOCK := msg.getLockname("x")
fmt.Fprintln(w, "// enforces "+APPLE+" is unique in "+FRUIT+"."+APPLES)
fmt.Fprintln(w, "func (x *"+FRUIT+") AppendUnique(newP *"+APPLE+") bool {")
fmt.Fprintln(w, " "+LOCK+".Lock()")
fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " for _, p := range x."+APPLES+" {")
for _, COLOR := range COLORS {
fmt.Fprintln(w, " if p."+COLOR+" == newP."+COLOR+" {")
fmt.Fprintln(w, " return false")
fmt.Fprintln(w, " }")
}
fmt.Fprintln(w, " }")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", newP)")
fmt.Fprintln(w, " return true")
fmt.Fprintln(w, "}")
fmt.Fprintln(w, "")
}
func (msg *MsgName) appendUniqueCOLOR(w io.Writer, FRUIT, APPLES, APPLE, COLOR string) {
LOCK := msg.getLockname("x")
fmt.Fprintln(w, "// enforces "+APPLE+"."+COLOR+" is unique in "+FRUIT+"."+APPLES)
fmt.Fprintln(w, "func (x *"+FRUIT+") AppendUnique"+COLOR+"(newP *"+APPLE+") bool {")
fmt.Fprintln(w, " "+LOCK+".Lock()")
fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " for _, p := range x."+APPLES+" {")
fmt.Fprintln(w, " if p."+COLOR+" == newP."+COLOR+" {")
fmt.Fprintln(w, " return false")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", newP)")
fmt.Fprintln(w, " return true")
fmt.Fprintln(w, "}")
fmt.Fprintln(w, "")
}
*/
// Unique Append. rejects Append() if value is already defined
// compares the field 'COLOR' in the STRUCT with VARNAME
// that's not the right description above, but whatever, you get the idea
func (msg *MsgName) addAppendBy(w io.Writer, STRUCT, FUNCNAME, STRUCTVAR, VARNAME, VARTYPE string) string {
LOCK := msg.getLockname("x")
funcdef := "func (x *" + STRUCT + ") " + FUNCNAME + "(y *" + VARTYPE + ") bool"
fmt.Fprintln(w, funcdef, "{")
fmt.Fprintln(w, " "+LOCK+".Lock()")
fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " for _, p := range x."+STRUCTVAR+" {")
fmt.Fprintln(w, " if p."+VARNAME+" == y."+VARNAME+" {")
fmt.Fprintln(w, " return false")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, " }")
fmt.Fprintln(w, "")
fmt.Fprintln(w, " x."+STRUCTVAR+" = append(x."+STRUCTVAR+", y)")
fmt.Fprintln(w, " return true")
fmt.Fprintln(w, "}")
fmt.Fprintln(w, "")
return funcdef
}
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