almost have Delete()

1 files changed, 26 insertions, 0 deletions

diff --git a/generateAppend.go b/generateAppend.go
index 5c70316..cd34a4e 100644
--- a/generateAppend.go
+++ b/generateAppend.go
@@ -66,3 +66,29 @@ func (msg *MsgName) appendUniqueCOLOR(w io.Writer, FRUIT, APPLES, APPLE, COLOR s
 	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
+}