echoif
| Name | Type | Description | Optional |
|---|---|---|---|
gate |
?0 |
control input, interpreted as boolean |
no |
in1 |
?1 |
first data input |
yes |
in2 |
?2 |
second data input |
yes |
… |
|||
in N-1 |
? N |
final data input |
yes |
| Name | Type | Description | Optional |
|---|---|---|---|
out1 |
?1 |
echo of first data input or default value |
yes |
out2 |
?2 |
echo of second data input default value |
yes |
… |
|||
out N |
? N |
echo of final data input or default value |
yes |
echoif reads the gate and all of its data inputs. if the gate value is false, it does nothing further; nothing is output. Otherwise, if the gate is true, then for each used output, it echoes the value of the corresponding data input of the same type (if the corresponding input port is used), and the default value (if the corresponding input port is unused).
echoif is the same as echo, but it has an additional gate input that, if false, causes all input values to be discarded and no output to be sent.