Struct TraceBuilder 

pub struct TraceBuilder { /* private fields */ }

Efficient trace builder that minimizes allocations during construction.

TraceBuilder uses pre-allocated collections and provides type-specific methods to build traces efficiently with minimal memory overhead.

Example:

let mut builder = TraceBuilder::new();

// Add different types of samples efficiently
builder.add_sample(addr!("x"), 1.5, -0.5);
builder.add_sample_bool(addr!("flag"), true, -0.693);
builder.add_sample_u64(addr!("count"), 42, -1.0);

// Add observations and factors
builder.add_observation(-2.3); // Likelihood contribution
builder.add_factor(-0.1);      // Soft constraint

// Build final trace
let trace = builder.build();
assert_eq!(trace.choices.len(), 3);

Implementations

impl TraceBuilder

pub fn new() -> Self

pub fn with_capacity(_capacity: usize) -> Self

pub fn add_sample(&mut self, addr: Address, value: f64, log_prob: f64)

pub fn add_sample_bool(&mut self, addr: Address, value: bool, log_prob: f64)

pub fn add_sample_u64(&mut self, addr: Address, value: u64, log_prob: f64)

pub fn add_sample_usize(&mut self, addr: Address, value: usize, log_prob: f64)

pub fn add_observation(&mut self, log_likelihood: f64)

pub fn add_factor(&mut self, log_weight: f64)

pub fn build(self) -> Trace

Trait Implementations

impl Default for TraceBuilder

fn default() -> Self

Returns the “default value” for a type.