Struct qt_core::q_state_machine::Error

pub struct Error(/* private fields */);

This enum type defines errors that can occur in the state machine at run time. When the state machine encounters an unrecoverable error at run time, it will set the error code returned by error(), the error message returned by errorString(), and enter an error state based on the context of the error.

C++ enum: QStateMachine::Error.

C++ documentation:

This enum type defines errors that can occur in the state machine at run time. When the state machine encounters an unrecoverable error at run time, it will set the error code returned by error(), the error message returned by errorString(), and enter an error state based on the context of the error.

See also setErrorState().

Implementations

impl Error

pub fn to_int(&self) -> c_int

impl Error

pub const NoError: Error = _

No error has occurred. (C++ enum variant: NoError = 0)

pub const NoInitialStateError: Error = _

The machine has entered a QState with children which does not have an initial state set. The context of this error is the state which is missing an initial state. (C++ enum variant: NoInitialStateError = 1)

pub const NoDefaultStateInHistoryStateError: Error = _

The machine has entered a QHistoryState which does not have a default state set. The context of this error is the QHistoryState which is missing a default state. (C++ enum variant: NoDefaultStateInHistoryStateError = 2)

pub const NoCommonAncestorForTransitionError: Error = _

The machine has selected a transition whose source and targets are not part of the same tree of states, and thus are not part of the same state machine. Commonly, this could mean that one of the states has not been given any parent or added to any machine. The context of this error is the source state of the transition. (C++ enum variant: NoCommonAncestorForTransitionError = 3)

pub const StateMachineChildModeSetToParallelError: Error = _

The machine’s childMode property was set to QState::ParallelStates. This is illegal. Only states may be declared as parallel, not the state machine itself. This enum value was added in Qt 5.14. (C++ enum variant: StateMachineChildModeSetToParallelError = 4)

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Error> for c_int

fn from(value: Error) -> Self

Converts to this type from the input type.

impl From<i32> for Error

fn from(value: c_int) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Error

impl Eq for Error

impl StructuralEq for Error

impl StructuralPartialEq for Error