Module serialize 

GNU R serialization — reading and writing RDS files.

Implements both the XDR binary format (format ‘X’) and the ASCII text format (format ‘A’) used by readRDS()/saveRDS(). See R-ints.texi “Serialization Formats” for the spec.

Structs

AsciiReader 🔒

Line-oriented reader for the ASCII serialization format (format ‘A’).

AsciiWriter 🔒

Line-oriented writer for the ASCII serialization format (format ‘A’).

XdrReader 🔒

Cursor-based reader for big-endian (XDR) binary data.

XdrWriter 🔒

Cursor-based writer for big-endian (XDR) binary data.

Constants

BASEENV_SXP 🔒

BASENAMESPACE_SXP 🔒

BUILTINSXP 🔒

CHARSXP 🔒

CLOSXP 🔒

CPLXSXP 🔒

EMPTYENV_SXP 🔒

ENVSXP 🔒

EXPRSXP 🔒

GLOBALENV_SXP 🔒

HAS_ATTR_MASK 🔒

HAS_TAG_MASK 🔒

INTSXP 🔒

LANGSXP 🔒

LGLSXP 🔒

LISTSXP 🔒

MISSINGARG_SXP 🔒

NAMESPACESXP 🔒

NILSXP 🔒

NILVALUE_SXP 🔒

PROMSXP 🔒

RAWSXP 🔒

REALSXP 🔒

REFSXP 🔒

R_NA_INTEGER 🔒

R’s NA_INTEGER is i32::MIN

R_NA_LOGICAL 🔒

R’s NA_LOGICAL is also i32::MIN in serialization

R_NA_REAL_BITS 🔒

R’s NA_REAL bit pattern: 0x7FF00000000007A2 (a specific NaN)

SPECIALSXP 🔒

STRSXP 🔒

SYMSXP 🔒

UNBOUNDVALUE_SXP 🔒

VECSXP 🔒

Functions

format_hex_float 🔒

Format a f64 as a C-style hex float string (matching R’s %a format).

is_binary_rds

Check if bytes look like a GNU R binary RDS file.

is_bzip2_data

Check for bzip2 magic number (“BZh”).

is_gzip_data

Check for gzip magic number (0x1f 0x8b).

parse_ascii_double 🔒

Parse a double from R’s ASCII serialization format.

parse_hex_float 🔒

Parse a C-style hex float string like “0x1.999999999999ap-4” into f64.

serialize_ascii

Serialize an R value to ASCII text format (version 2).

serialize_rdata

Serialize named bindings to GNU R binary .RData format (RDX2).

serialize_rds

Serialize an R value to an RDS byte stream, optionally gzip-compressed.

serialize_xdr

Serialize an R value to XDR binary format (version 2).

unserialize_rds

Decompress gzip data and then deserialize.

unserialize_xdr

Deserialize an R object from either XDR binary or ASCII format bytes.