Function to_sexp 

pub unsafe fn to_sexp<T>(x: T) -> SEXP
where
    T: IntoR,

Convert a Rust value to an R SEXP.

Calls IntoR::into_sexp to produce an R value. Used in trait ABI method shims.

Type Parameters

• T - Source Rust type (must implement IntoR)

Arguments

• x - Rust value to convert

Returns

R SEXP representation of the value.

Safety

• Must be called on R’s main thread
• The returned SEXP must be protected if used across R allocations

Example

// In a method shim:
let result: f64 = self_ref.area();
unsafe { to_sexp(result) }