mirror of
https://github.com/wpilibsuite/allwpilib
synced 2026-06-19 00:41:43 +00:00
8992cf7081
CoroutineYieldInLoopDetector
This checks for while loops where coroutines are in scope but without calling a blocking method on at least one of those coroutines:
```
drivetrain.run(theCoroutine -> {
while (drivetrain.getDistance() < 10) { // ERROR: "Missing call to `theCoroutine.yield()` inside loop"
drivetrain.setSpeed(1);
}
});
```
Note that, because we assume most looping constructs in commands will use while loops, we don't check for-loops, for-each loops, or do-while loops.
This check can be disabled with `@SuppressWarnings("CoroutineYieldInLoop")`
CodeAfterCoroutineParkDetector
Essentially acts like the Java compiler's check for code after a while (true) loop, but for coroutine.park():
```
drivetrain.run(theCoroutine -> {
drivetrain.setSpeed(1.0);
theCoroutine.park();
drivetrain.setSpeed(0.0); // ERROR: "Unreachable statement: `theCoroutine.park()` will never exit"
});
```
This check can be disabled with `@SuppressWarnings("CodeAfterCoroutinePark")`
IncorrectCoroutineUseDetector
Checks for usage of captured (outer) coroutine parameters and assignments to fields.
```
drivetrain.run(outer -> {
outer.await(arm.run(inner -> {
outer.yield(); // ERROR: "Coroutine `outer` may not be in scope. Consider using `inner`"
}))
});
```
This check can be disabled with `@SuppressWarnings("CoroutineMayNotBeInScope")`
```
private Coroutine coroutineField;
drivetrain.run(co -> coroutineField = co); // ERROR: "Captured coroutines may not be stored in fields"
```
This check can be disabled with `@SuppressWarnings("CoroutineCapture")`