func ExampleTransformer() {
upper := flow.Transformer(func(m flow.Message) flow.Message {
return strings.ToUpper(m.(string))
})
g := flow.NewCircuit()
g.AddCircuitry("u", upper)
g.Feed("u.In", "abc")
g.Feed("u.In", "def")
g.Run()
// Output:
// Lost string: ABC
// Lost string: DEF
}
func ExampleIntelHexToBin() {
g := flow.NewCircuit()
g.Add("r", "ReadFileText")
g.Add("b", "IntelHexToBin")
g.AddCircuitry("n", flow.Transformer(func(m flow.Message) flow.Message {
if v, ok := m.([]byte); ok {
m = len(v)
}
return m
}))
g.Connect("r.Out", "b.In", 0)
g.Connect("b.Out", "n.In", 0)
g.Feed("r.In", "./blinkAvr1.hex")
g.Run()
// Output:
// Lost flow.Tag: {<open> ./blinkAvr1.hex}
// Lost flow.Tag: {<addr> 0}
// Lost int: 726
// Lost flow.Tag: {<close> ./blinkAvr1.hex}
}