Module shared_slices 

Shared slice owners with coordinated COW and duplicate policies.

Element/region reads share Rc/Arc storage. A native contiguous pointer request establishes unique ownership, including detaching any Weak references. Once unique, duplication copies the allocation instead of re-sharing it, preserving exposed pointers. This conservatively copies even an unexposed unique owner.

bool and String keep R’s values in data2 (a logical vector or the string element cache). Duplication copies data2 when present, through duplicate_altrep_data2, and serialization falls back to an ordinary vector once R has written to it.

Macros

impl_shared_native 🔒

impl_shared_slice 🔒

Statics

__MX_ALTREP_REG_SHARED_ARC_BOOL 🔒

__MX_ALTREP_REG_SHARED_ARC_F64 🔒

__MX_ALTREP_REG_SHARED_ARC_I32 🔒

__MX_ALTREP_REG_SHARED_ARC_RCOMPLEX 🔒

__MX_ALTREP_REG_SHARED_ARC_RLOGICAL 🔒

__MX_ALTREP_REG_SHARED_ARC_STRING 🔒

__MX_ALTREP_REG_SHARED_ARC_U8 🔒

__MX_ALTREP_REG_SHARED_RC_BOOL 🔒

__MX_ALTREP_REG_SHARED_RC_F64 🔒

__MX_ALTREP_REG_SHARED_RC_I32 🔒

__MX_ALTREP_REG_SHARED_RC_RCOMPLEX 🔒

__MX_ALTREP_REG_SHARED_RC_RLOGICAL 🔒

__MX_ALTREP_REG_SHARED_RC_STRING 🔒

__MX_ALTREP_REG_SHARED_RC_U8 🔒

Functions

__mx_altrep_reg_builtin_Arc_RLogical 👻

__mx_altrep_reg_builtin_Arc_Rcomplex 👻

__mx_altrep_reg_builtin_Arc_String 👻

__mx_altrep_reg_builtin_Arc_bool 👻

__mx_altrep_reg_builtin_Arc_f64 👻

__mx_altrep_reg_builtin_Arc_i32 👻

__mx_altrep_reg_builtin_Arc_u8 👻

__mx_altrep_reg_builtin_Rc_RLogical 👻

__mx_altrep_reg_builtin_Rc_Rcomplex 👻

__mx_altrep_reg_builtin_Rc_String 👻

__mx_altrep_reg_builtin_Rc_bool 👻

__mx_altrep_reg_builtin_Rc_f64 👻

__mx_altrep_reg_builtin_Rc_i32 👻

__mx_altrep_reg_builtin_Rc_u8 👻