Struct design_pattern_examples_rust::state::state_context::StateStartComment

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struct StateStartComment {}
Expand description

Represents the possible start of a line or block comment.

Transitions to the following states for the seen input:

  • / - go to CurrentState::LineComment (start of a line comment)

  • * - go to CurrentState::BlockComment (start of a block comment)

  • {ANY} - go to CurrentState::NormalText (not start of a comment)

  • StateChar::Eof - go to CurrentState::Done (no more input)

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impl StateStartComment

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pub fn new() -> Box<dyn IStateBehavior>

Constructor

Returns

Returns a new instance of the StateStartComment struct as represented by the IStateBehavior trait.

Trait Implementations§

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impl IStateBehavior for StateStartComment

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fn go_next(&mut self, context: &mut dyn IStateContext) -> CurrentState

Process the next character from the context, returning the next state the context should move to. Read more

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V