69 lines
2.1 KiB
Go
69 lines
2.1 KiB
Go
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package main
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import (
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"fmt"
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"io"
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"go.wit.com/log"
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)
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// generates Append()
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// I like these functions the best.
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func (msg *MsgName) simpleAppend(w io.Writer, FRUIT, APPLES, APPLE string) {
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LOCK := msg.getLockname("x")
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log.Printf("\t\t(x %s) APPEND(%s)\n", FRUIT, APPLE)
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// append -- no check at all
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fmt.Fprintln(w, "// just a simple Append() shortcut (but still uses the mutex lock)")
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fmt.Fprintln(w, "func (x *"+FRUIT+") Append(y *"+APPLE+") {")
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fmt.Fprintln(w, " "+LOCK+".Lock()")
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fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", y)")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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}
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func (msg *MsgName) appendUnique(w io.Writer, FRUIT, APPLES, APPLE string, COLORS []string) {
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LOCK := msg.getLockname("x")
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fmt.Fprintln(w, "// enforces "+APPLE+" is unique in "+FRUIT+"."+APPLES)
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fmt.Fprintln(w, "func (x *"+FRUIT+") AppendUnique(newP *"+APPLE+") bool {")
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fmt.Fprintln(w, " "+LOCK+".Lock()")
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fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " for _, p := range x."+APPLES+" {")
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for _, COLOR := range COLORS {
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fmt.Fprintln(w, " if p."+COLOR+" == newP."+COLOR+" {")
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fmt.Fprintln(w, " return false")
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fmt.Fprintln(w, " }")
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}
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", newP)")
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fmt.Fprintln(w, " return true")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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}
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func (msg *MsgName) appendUniqueCOLOR(w io.Writer, FRUIT, APPLES, APPLE, COLOR string) {
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LOCK := msg.getLockname("x")
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fmt.Fprintln(w, "// enforces "+APPLE+"."+COLOR+" is unique in "+FRUIT+"."+APPLES)
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fmt.Fprintln(w, "func (x *"+FRUIT+") AppendUnique"+COLOR+"(newP *"+APPLE+") bool {")
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fmt.Fprintln(w, " "+LOCK+".Lock()")
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fmt.Fprintln(w, " defer "+LOCK+".Unlock()")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " for _, p := range x."+APPLES+" {")
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fmt.Fprintln(w, " if p."+COLOR+" == newP."+COLOR+" {")
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fmt.Fprintln(w, " return false")
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " x."+APPLES+" = append(x."+APPLES+", newP)")
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fmt.Fprintln(w, " return true")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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}
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