working on LOCK

1 files changed, 68 insertions, 0 deletions

diff --git a/generateAppend.go b/generateAppend.go
new file mode 100644
index 0000000..5c70316
--- /dev/null
+++ b/generateAppend.go
@@ -0,0 +1,68 @@
+package main
+
+import (
+	"fmt"
+	"io"
+
+	"go.wit.com/log"
+)
+
+// generates Append()
+
+// I like these functions the best.
+func (msg *MsgName) simpleAppend(w io.Writer, FRUIT, APPLES, APPLE string) {
+	LOCK := msg.getLockname("x")
+
+	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, "func (x *"+FRUIT+") Append(y *"+APPLE+") {")
+	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, "")
+}
+
+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, "")
+}