Module builtins 

Built-in ALTREP data implementations for standard Rust types.

Provides AltIntegerData, AltRealData, AltLogicalData, AltRawData, AltStringData, and AltComplexData implementations for:

• Vec<T> — owned vector (most common)
• Box<[T]> — boxed slice
• Range<T> — lazy arithmetic sequences (integer, real)
• &'static [T] — borrowed slices (zero-copy from static data)
• [T; N] — fixed-size arrays

Macros

impl_altcomplex_slice 🔒

AltComplexData for any container that derefs to [Rcomplex].

impl_altinteger_slice 🔒

AltIntegerData for any container that derefs to [i32].

impl_altlogical_native_slice 🔒

AltLogicalData for R-native logical slices, including NA and raw values.

impl_altlogical_slice 🔒

AltLogicalData for any container that derefs to [bool]. bool can’t be NA.

impl_altraw_slice 🔒

AltRawData for any container that derefs to [u8]. Raw has no NA.

impl_altreal_slice 🔒

AltRealData for any container that derefs to [f64].

impl_dataptr_array 🔒

impl_dataptr_boxed 🔒

Implement AltrepDataptr for Box<[$elem]> (types with direct memory access)

impl_dataptr_cow 🔒

impl_dataptr_vec 🔒

Implement AltrepDataptr for Vec<$elem> (types with direct memory access)

impl_len_array 🔒

Implement AltrepLen for [$elem; N]

impl_len_boxed 🔒

Implement AltrepLen for Box<[$elem]>

impl_len_cow 🔒

impl_len_slice 🔒

Implement AltrepLen for &[$elem]

impl_len_vec 🔒

Implement AltrepLen for Vec<$elem>

impl_owned_str_altrep_data 🔒

impl_serialize 🔒

Implement AltrepSerialize for types that can be cloned and converted to/from R.

impl_shared_slice_data 🔒

impl_shared_slice_dataptr 🔒

Functions

real_slice_extreme 🔒

min / max for a double slice, following R’s rmin / rmax.

real_slice_no_na 🔒

no_na for a double slice: true only when no element is NA or NaN.

real_slice_sum 🔒

sum for a double slice, following R’s rsum.