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hax-lib: prop: allow equality on every type #1352

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Merged
W95Psp merged 2 commits into from
Mar 11, 2025
Merged

hax-lib: prop: allow equality on every type #1352

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90107b0
prop: eq on anything
W95Psp Mar 6, 2025
847299d
made eq and ne uniform
karthikbhargavan Mar 11, 2025
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16 changes: 12 additions & 4 deletions hax-lib/src/prop.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -21,18 +21,24 @@ pub mod constructors {
pub fn not(lhs: Prop) -> Prop {
Prop(!lhs.0)
}
pub fn eq(lhs: Prop, other: Prop) -> Prop {
Prop(lhs.0 == other.0)

/// Logical equality between two value of *any* type
pub fn eq<T>(_lhs: T, _rhs: T) -> Prop {
Prop(true)
}
pub fn ne(lhs: Prop, other: Prop) -> Prop {
Prop(lhs.0 != other.0)

pub fn ne<T>(_lhs: T, _rhs: T) -> Prop {
Prop(true)
}

pub fn implies(lhs: Prop, other: Prop) -> Prop {
Prop(lhs.0 || !other.0)
}

pub fn forall<A, F: Fn(A) -> Prop>(_pred: F) -> Prop {
Prop(true)
}

pub fn exists<A, F: Fn(A) -> Prop>(_pred: F) -> Prop {
Prop(true)
}
Expand Down Expand Up @@ -136,3 +142,5 @@ pub fn exists<T, U: Into<Prop>>(f: impl Fn(T) -> U) -> Prop {
pub fn implies(lhs: impl Into<Prop>, rhs: impl Into<Prop>) -> Prop {
constructors::implies(lhs.into(), rhs.into())
}

pub use constructors::eq;
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