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pub struct SizeHint { /* private fields */ }
Expand description

A Body size hint

The default implementation returns:

  • 0 for lower
  • None for upper.

Implementations

Returns a new SizeHint with default values

Returns a new SizeHint with both upper and lower bounds set to the given value.

Returns the lower bound of data that the Body will yield before completing.

Set the value of the lower hint.

Panics

The function panics if value is greater than upper.

Returns the upper bound of data the Body will yield before completing, or None if the value is unknown.

Set the value of the upper hint value.

Panics

This function panics if value is less than lower.

Returns the exact size of data that will be yielded if the lower and upper bounds are equal.

Set the value of the lower and upper bounds to exactly the same.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. 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

Returns the argument unchanged.

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Calls U::from(self).

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

Converts self into a collection.

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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.

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