Generate Bind

internal/bindgen/bind.go.tmpl

@@ -0,0 +1,35 @@
+{{define "fparams" -}}
+{{with $max := .}}{{range .Count}}	f{{.}} func(T{{.}}) Parser[In, {{if eq . $max}}Out{{else}}T{{.Next}}{{end}}],
+{{end}}{{end}}{{end -}}
+
+{{define "func" -}}
+func Bind{{.}}[In, Out{{range .Count}}, T{{.}}{{end}} any](
+	p Parser[In, T],
+{{template "fparams" .}}) Parser[In, Out] {
+	return func(s State[In]) (Result[In, Out], error) {
+		var anyConsumed bool
+		var failed bool
+		var msg Message
+		var next = s
+{{range .Next.Count}}
+		r{{.}}, err := {{if eq . 1}}p(next){{else}}f{{.Prev}}(val{{.Prev}})(next){{end}}
+		if err != nil {
+			return Result[In, Out]{}, err
+		}
+		anyConsumed = anyConsumed || r{{.}}.Consumed()
+		failed, _, msg = r{{.}}.Failed()
+		if failed {
+			return Fail[In, Out](anyConsumed, msg), nil
+		}
+		_, _, val{{.}}, next, _ := r{{.}}.Succeeded()
+{{end}}
+		return Succeed(anyConsumed, val{{.Next}}, next, MessageOK(s.Pos())), nil
+	}
+}{{end -}}
+
+// GENERATED FILE. DO NOT EDIT.
+
+package {{.Package}}
+{{range .Count}}
+{{template "func" .}}
+{{end}}