Module prelude 

Convenience re-exports for common miniextendr items.

A single use miniextendr_api::prelude::*; brings into scope the most commonly used macros, traits, types, and helpers. Convenience re-exports for common miniextendr items.

A single use miniextendr_api::prelude::*; brings into scope the most commonly used macros, traits, types, and helpers so user crates can avoid a long list of individual imports.

Optional feature types

When a Cargo feature is enabled (e.g., uuid, regex, ndarray), the prelude includes both the miniextendr adapter types and a re-export of the upstream dependency crate itself. This means you do not need to add optional crates as direct dependencies in your Cargo.toml — enabling the feature on miniextendr-api is enough.

[dependencies]
miniextendr-api = { version = "0.1", features = ["uuid", "ndarray"] }
# No need for: uuid = "1", ndarray = "0.16"

Access the upstream crate via the prelude:

use miniextendr_api::prelude::*;

// Uuid is re-exported from the uuid crate
let id = Uuid::new_v4();

// The full crate is also available for advanced usage
let parsed = uuid::Uuid::parse_str("...").unwrap();

Example

use miniextendr_api::prelude::*;

#[miniextendr]
fn add(a: i32, b: i32) -> i32 {
    a + b
}

Re-exports

pub use crate::Altrep;

pub use crate::ExternalPtr;

pub use crate::MatchArg;

pub use crate::RFactor;

pub use crate::list;

pub use crate::typed_list;

pub use crate::Coerce;

pub use crate::IntoR;

pub use crate::IntoRAltrep;

pub use crate::TryCoerce;

pub use crate::TryFromSexp;

pub use crate::IntoList;

pub use crate::Lazy;

pub use crate::List;

pub use crate::ListBuilder;

pub use crate::ListMut;

pub use crate::Missing;

pub use crate::NamedVector;

pub use crate::OwnedProtect;

pub use crate::ProtectScope;

pub use crate::ProtectedStrVec;

pub use crate::StrVec;

pub use crate::StrVecBuilder;

pub use crate::with_r_thread;

pub use crate::r_warning;

pub use crate::ffi::SEXP;

Macros

list

Construct an R list from Rust values.

r_print

Print to R’s console (like print!).

r_println

Print to R’s console with a newline (like println!).

typed_list

Create a TypedListSpec for validating ... arguments or lists.

Attribute Macros

miniextendr

Export Rust items to R.

Derive Macros

Altrep

Derive ALTREP registration for a data struct.

ExternalPtr

Derive macro for implementing TypedExternal on a type.

IntoList

Derive IntoList for a struct (Rust → R list).

MatchArg

Derive MatchArg: enables conversion between Rust enums and R character strings with match.arg semantics (partial matching, informative errors).

RFactor

Derive RFactor: enables conversion between Rust enums and R factors.