21 lines
1.1 KiB
Markdown
21 lines
1.1 KiB
Markdown
---
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weight: 100
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title: "Flatten control flow"
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description: "Control flow flattener"
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icon: "article"
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date: "2025-05-01T18:47:58-05:00"
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lastmod: "2025-05-01T18:47:58-05:00"
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---
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This option will enable the Control Flow Flattener (CFF). This feature is conservative in it's estimates of what can be flattened, if a block can't be flattened without side effects, it will be discarded from the flattening queue. CFF is applied recursively to failed blocks, meaning if a block is discarded from the flattening queue, its children may be flattened individually.
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The control flow flattener supports the following branching syntaxes:
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- `if` statements
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- `while` and `repeat` loops
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- numeric `for` loops
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- `for-in` loops and even support for [Luau's generalized iteration](https://luau.org/syntax#generalized-iteration)
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The following child options are available:
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- `Wrap CFF blocks`: This will move some CFF blocks into their own closure in a lookup table.
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- `Hoist locals`: Will move local storage into a lookup table for CFF blocks. Useful to cut down on the number of used locals. |