pub(crate) struct Stack<I: Interner> {
    stack: Vec<StackEntry<I>>,
}
Expand description

See Forest.

Fields

stack: Vec<StackEntry<I>>

Stack: as described above, stores the in-progress goals.

Implementations

Searches the stack to see if table is active. If so, returns its stack index.

Pops the top-most entry from the stack:

  • If the stack is now empty, returns false.
  • Otherwise, returns true.

Pops the top-most entry from the stack, which should have the depth *depth:

  • If the stack is now empty, returns None.
  • Otherwise, takes the active strand from the new top and returns it.

Pops the top-most entry from the stack, which should have the depth *depth:

  • If the stack is now empty, returns None.
  • Otherwise, borrows the active strand (mutably) from the new top and returns it.

Trait Implementations

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

The returned type after indexing.

Performs the indexing (container[index]) operation. Read more

Performs the mutable indexing (container[index]) operation. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Cast a value to type U using CastTo.

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

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

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more