$optOff

The $optOff function disables code optimization for the current command. BDFD then executes the code in a strictly linear manner.

Syntax

$optOff

Parameters

None.

Return Value

None.

Behavior

• Without $optOff, BDFD may reorganize the code to optimize execution.
• With $optOff, the execution order is exactly that of the source code.
• Useful when optimization causes execution order bugs.

Examples

Force execution order

$optOff
$var[x;1]
$sendMessage[x = $var[x]]
$var[x;2]
$sendMessage[x = $var[x]]

Avoid optimization bugs

$optOff
$let[a;1]
$onlyIf[$let[a]!=;Missing value]
$sendMessage[$let[a]]

Notes

• Impacts performance: only use when necessary.
• Some complex functions may require $optOff to work correctly.
• Should be placed at the beginning of the command.