Struct Equation 

pub struct Equation {
    pub formula: String,
    pub domain: Option<String>,
    pub codomain: Option<String>,
    pub invariants: Vec<String>,
    pub preconditions: Vec<String>,
    pub postconditions: Vec<String>,
    pub lean_theorem: Option<String>,
    pub float_tolerance: Option<f64>,
    pub assumes: Option<ShapeContract>,
    pub guarantees: Option<ShapeContract>,
}

A mathematical equation extracted from a paper (Phase 1 output).

Fields

formula: String

Default-empty so diagnostic/methodology contracts that use prose requirements instead of a formula (e.g. decode-hot-path-prefix-cache-diagnostic-v1) still parse.

domain: Option<String>

codomain: Option<String>

invariants: Vec<String>

preconditions: Vec<String>

Rust preconditions — compiled to debug_assert!() by build.rs.

postconditions: Vec<String>

Rust postconditions — compiled to debug_assert!() by build.rs.

lean_theorem: Option<String>

Lean 4 theorem name that proves this equation correct. Example: “ProvableContracts.Theorems.Softmax.PartitionOfUnity”

float_tolerance: Option<f64>

IEEE 754 tolerance: codegen emits >= instead of > for boundaries (GH-67).

assumes: Option<ShapeContract>

Compositional verification: what this equation requires from upstream. References a guarantees block from another contract/equation.

guarantees: Option<ShapeContract>

Compositional verification: what this equation provides to downstream. Must be satisfiable by any downstream equation that assumes it.

Trait Implementations

impl Clone for Equation

fn clone(&self) -> Equation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Equation

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

Formats the value using the given formatter.

impl Default for Equation

fn default() -> Equation

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Equation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Equation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.