Struct PreconditionOptions 

pub struct PreconditionOptions {
    pub coerce_all: bool,
    pub coerce_params: HashSet<String>,
}

Per-function knobs that influence precondition codegen.

Currently only the coerce knob matters: #[miniextendr(coerce)] (or a per-param #[miniextendr(coerce)]) changes the inbound conversion for an integer-element vector to read via the native &[i32] slice and then TryCoerce element-wise (see rust_conversion_builder.rs CoercionMapping::Vec). That &[i32] read is INTSXP-only, so a coerced integer vector that would otherwise accept whole-number REALSXP (RTypeCheck::VectorIntegerWide) must instead get the strict is.integer gate (RTypeCheck::VectorIntegerStrict) — otherwise a double passes the R precondition only to fail the Rust read with “expected INTSXP, got REALSXP” (issue #616).

strict is intentionally not represented: inbound conversion is identical in strict and default mode (TryFromSexp), so the R-side integer gate doesn’t change. The precise strict checking happens on the Rust outbound side.

Fields

coerce_all: bool

coerce knob is active for all parameters (coerce_all).

coerce_params: HashSet<String>

R-normalized names of parameters with a per-param coerce attribute.

Implementations

impl PreconditionOptions

fn is_coerced(&self, r_name: &str) -> bool

Returns true if the parameter r_name is coerced (function-wide or per-param).

Trait Implementations

impl Clone for PreconditionOptions

fn clone(&self) -> PreconditionOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for PreconditionOptions

fn default() -> PreconditionOptions

Returns the “default value” for a type.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes