openvm_mod_circuit_builder

Struct ExprBuilder

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pub struct ExprBuilder {
Show 16 fields
    pub prime: BigUint,
    pub prime_bigint: BigInt,
    pub prime_limbs: Vec<usize>,
    pub num_input: usize,
    pub num_flags: usize,
    pub num_variables: usize,
    pub constants: Vec<(BigUint, Vec<usize>)>,
    pub limb_bits: usize,
    pub num_limbs: usize,
    pub range_checker_bits: usize,
    pub max_carry_bits: usize,
    pub q_limbs: Vec<usize>,
    pub carry_limbs: Vec<usize>,
    pub constraints: Vec<SymbolicExpr>,
    pub computes: Vec<SymbolicExpr>,
    pub output_indices: Vec<usize>,
    /* private fields */

}

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§prime: BigUint§prime_bigint: BigInt§prime_limbs: Vec<usize>§num_input: usize§num_flags: usize§num_variables: usize§constants: Vec<(BigUint, Vec<usize>)>§limb_bits: usize

The number of bits in a canonical representation of a limb.

§num_limbs: usize

Number of limbs in canonical representation of the bigint field element.

§range_checker_bits: usize§max_carry_bits: usize§q_limbs: Vec<usize>§carry_limbs: Vec<usize>§constraints: Vec<SymbolicExpr>§computes: Vec<SymbolicExpr>§output_indices: Vec<usize>

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impl ExprBuilder

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pub fn new(config: ExprBuilderConfig, range_checker_bits: usize) -> Self

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pub fn set_debug(&mut self)

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pub fn is_finalized(&self) -> bool

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pub fn finalize(&mut self, needs_setup: bool)

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pub fn new_input(builder: Rc<RefCell<ExprBuilder>>) -> FieldVariable

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pub fn new_flag(&mut self) -> usize

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pub fn needs_setup(&self) -> bool

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pub fn new_var(&mut self) -> (usize, SymbolicExpr)

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pub fn new_const( builder: Rc<RefCell<ExprBuilder>>, value: BigUint, ) -> FieldVariable

Creates a new constant (compile-time known) FieldVariable from value where the big integer value is decomposed into num_limbs limbs of limb_bits bits, with num_limbs, limb_bits specified by the builder config.

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pub fn set_constraint(&mut self, index: usize, constraint: SymbolicExpr)

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pub fn set_compute(&mut self, index: usize, compute: SymbolicExpr)

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pub fn proper_max(&self) -> &BigUint

Returns proper_max = 2^{num_limbs * limb_bits} - 1 as a precomputed value. Any proper representation of a positive big integer using num_limbs limbs with limb_bits bits each will be <= proper_max.

Trait Implementations§

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impl Clone for ExprBuilder

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fn clone(&self) -> ExprBuilder

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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