# m_captcha::defense::LevelBuilder - Rust
API documentation for the Rust `LevelBuilder` struct in crate `m_captcha`.
Keywords: rust, rustlang, rust-lang, LevelBuilder

# [−] [src] Struct m_captcha::defense::LevelBuilder

    pub struct LevelBuilder { /* fields omitted */ }

Bulder struct for Level to describe threshold-difficulty factor mapping

## Implementations

### `impl LevelBuilder` [src]

#### `pub fn visitor_threshold(&mut self, visitor_threshold: u32) -> &mut Self` [src]

set visitor count for level

#### `pub fn difficulty_factor(
&mut self,
difficulty_factor: u32
) -> CaptchaResult<&mut Self>` [src]

set difficulty factor for level. difficulty_factor can't be zero because Difficulty is calculated as:

    let difficulty_factor = 500;
    let difficulty = u128::max_value() - u128::max_value() / difficulty_factor;

the higher the `difficulty_factor`, the higher the difficulty.

#### `pub fn build(&mut self) -> CaptchaResult<Level>` [src]

build Level struct

## Trait Implementations

### `impl Clone for LevelBuilder` [src]

#### `fn clone(&self) -> LevelBuilder` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Copy for LevelBuilder` [src]

### `impl Debug for LevelBuilder` [src]

#### `fn fmt(&self, f: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

### `impl Default for LevelBuilder` [src]

#### `fn default() -> Self` [src]

Returns the "default value" for a type. Read more

### `impl PartialEq<LevelBuilder> for LevelBuilder` [src]

#### `fn eq(&self, other: &LevelBuilder) -> bool` [src]

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

#### `fn ne(&self, other: &LevelBuilder) -> bool` [src]

This method tests for `!=`.

### `impl StructuralPartialEq for LevelBuilder` [src]

## Auto Trait Implementations

### `impl RefUnwindSafe for LevelBuilder` [src]

### `impl Send for LevelBuilder` [src]

### `impl Sync for LevelBuilder` [src]

### `impl Unpin for LevelBuilder` [src]

### `impl UnwindSafe for LevelBuilder` [src]

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> Same<T> for T`

#### `type Output = T`

Should always be `Self`

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

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

#### `pub fn clone_into(&self, target: &mut T)` [src]

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

recently added

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

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

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

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.

### `impl<V, T> VZip<V> for T where
V: MultiLane<T>,`

#### `pub fn vzip(self) -> V`