Struct Weighted 

#[non_exhaustive]
pub struct Weighted {
    pub recursive_weight: u32,
    pub non_recursive_weight: u32,
    /* private fields */
}

Weights expressions by whether they contain a recursive reference to the current nonterminal (higher weight for recursive, for fuzzing / stress testing).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

recursive_weight: u32

Weight for an expression that contains the current nonterminal (recursive).

non_recursive_weight: u32

Weight for an expression that does not.

Implementations

impl Weighted

pub fn new(recursive_weight: u32, non_recursive_weight: u32) -> Self

Create a weighted strategy with custom weights.

pub fn from_seed( recursive_weight: u32, non_recursive_weight: u32, seed: [u8; 32], ) -> Self

Create a strategy seeded from the given seed for reproducible generation.

Trait Implementations

impl Debug for Weighted

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

Formats the value using the given formatter.

impl Default for Weighted

fn default() -> Self

Returns the “default value” for a type.

impl GenerationStrategy for Weighted

fn choose<'p>( &mut self, production: &'p Production, _depth: usize, ) -> Option<&'p Expression>

Choose one of the production’s RHS alternatives.