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-rw-r--r--trunk/marshal.c1737
1 files changed, 0 insertions, 1737 deletions
diff --git a/trunk/marshal.c b/trunk/marshal.c
deleted file mode 100644
index 0909addc83..0000000000
--- a/trunk/marshal.c
+++ /dev/null
@@ -1,1737 +0,0 @@
-/**********************************************************************
-
- marshal.c -
-
- $Author$
- created at: Thu Apr 27 16:30:01 JST 1995
-
- Copyright (C) 1993-2007 Yukihiro Matsumoto
-
-**********************************************************************/
-
-#include "ruby/ruby.h"
-#include "ruby/io.h"
-#include "ruby/st.h"
-#include "ruby/util.h"
-#include "ruby/encoding.h"
-
-#include <math.h>
-#ifdef HAVE_FLOAT_H
-#include <float.h>
-#endif
-#ifdef HAVE_IEEEFP_H
-#include <ieeefp.h>
-#endif
-
-#define BITSPERSHORT (2*CHAR_BIT)
-#define SHORTMASK ((1<<BITSPERSHORT)-1)
-#define SHORTDN(x) RSHIFT(x,BITSPERSHORT)
-
-#if SIZEOF_SHORT == SIZEOF_BDIGITS
-#define SHORTLEN(x) (x)
-#else
-static int
-shortlen(long len, BDIGIT *ds)
-{
- BDIGIT num;
- int offset = 0;
-
- num = ds[len-1];
- while (num) {
- num = SHORTDN(num);
- offset++;
- }
- return (len - 1)*sizeof(BDIGIT)/2 + offset;
-}
-#define SHORTLEN(x) shortlen((x),d)
-#endif
-
-#define MARSHAL_MAJOR 4
-#define MARSHAL_MINOR 8
-
-#define TYPE_NIL '0'
-#define TYPE_TRUE 'T'
-#define TYPE_FALSE 'F'
-#define TYPE_FIXNUM 'i'
-
-#define TYPE_EXTENDED 'e'
-#define TYPE_UCLASS 'C'
-#define TYPE_OBJECT 'o'
-#define TYPE_DATA 'd'
-#define TYPE_USERDEF 'u'
-#define TYPE_USRMARSHAL 'U'
-#define TYPE_FLOAT 'f'
-#define TYPE_BIGNUM 'l'
-#define TYPE_STRING '"'
-#define TYPE_REGEXP '/'
-#define TYPE_ARRAY '['
-#define TYPE_HASH '{'
-#define TYPE_HASH_DEF '}'
-#define TYPE_STRUCT 'S'
-#define TYPE_MODULE_OLD 'M'
-#define TYPE_CLASS 'c'
-#define TYPE_MODULE 'm'
-
-#define TYPE_SYMBOL ':'
-#define TYPE_SYMLINK ';'
-
-#define TYPE_IVAR 'I'
-#define TYPE_LINK '@'
-
-static ID s_dump, s_load, s_mdump, s_mload;
-static ID s_dump_data, s_load_data, s_alloc;
-static ID s_getbyte, s_read, s_write, s_binmode;
-
-ID rb_id_encoding(void);
-
-typedef struct {
- VALUE newclass;
- VALUE oldclass;
- VALUE (*dumper)(VALUE);
- VALUE (*loader)(VALUE, VALUE);
-} marshal_compat_t;
-
-static st_table *compat_allocator_tbl;
-static VALUE compat_allocator_tbl_wrapper;
-
-static int
-mark_marshal_compat_i(st_data_t key, st_data_t value)
-{
- marshal_compat_t *p = (marshal_compat_t *)value;
- rb_gc_mark(p->newclass);
- rb_gc_mark(p->oldclass);
- return ST_CONTINUE;
-}
-
-static void
-mark_marshal_compat_t(void *tbl)
-{
- if (!tbl) return;
- st_foreach(tbl, mark_marshal_compat_i, 0);
-}
-
-void
-rb_marshal_define_compat(VALUE newclass, VALUE oldclass, VALUE (*dumper)(VALUE), VALUE (*loader)(VALUE, VALUE))
-{
- marshal_compat_t *compat;
- rb_alloc_func_t allocator = rb_get_alloc_func(newclass);
-
- if (!allocator) {
- rb_raise(rb_eTypeError, "no allocator");
- }
-
- compat = ALLOC(marshal_compat_t);
- compat->newclass = Qnil;
- compat->oldclass = Qnil;
- compat->newclass = newclass;
- compat->oldclass = oldclass;
- compat->dumper = dumper;
- compat->loader = loader;
-
- st_insert(compat_allocator_tbl, (st_data_t)allocator, (st_data_t)compat);
-}
-
-struct dump_arg {
- VALUE obj;
- VALUE str, dest;
- st_table *symbols;
- st_table *data;
- int taint;
- int untrust;
- st_table *compat_tbl;
- VALUE wrapper;
- st_table *encodings;
-};
-
-struct dump_call_arg {
- VALUE obj;
- struct dump_arg *arg;
- int limit;
-};
-
-static void
-check_dump_arg(struct dump_arg *arg)
-{
- if (!DATA_PTR(arg->wrapper)) {
- rb_raise(rb_eRuntimeError, "Marshal.dump reentered");
- }
-}
-
-static void
-mark_dump_arg(void *ptr)
-{
- struct dump_arg *p = ptr;
- if (!ptr)
- return;
- rb_mark_set(p->data);
- rb_mark_hash(p->compat_tbl);
-}
-
-static VALUE
-class2path(VALUE klass)
-{
- VALUE path = rb_class_path(klass);
- char *n = RSTRING_PTR(path);
-
- if (n[0] == '#') {
- rb_raise(rb_eTypeError, "can't dump anonymous %s %s",
- (TYPE(klass) == T_CLASS ? "class" : "module"),
- n);
- }
- if (rb_path2class(n) != rb_class_real(klass)) {
- rb_raise(rb_eTypeError, "%s can't be referred", n);
- }
- return path;
-}
-
-static void w_long(long, struct dump_arg*);
-
-static void
-w_nbyte(const char *s, int n, struct dump_arg *arg)
-{
- VALUE buf = arg->str;
- rb_str_buf_cat(buf, s, n);
- if (arg->dest && RSTRING_LEN(buf) >= BUFSIZ) {
- if (arg->taint) OBJ_TAINT(buf);
- if (arg->untrust) OBJ_UNTRUST(buf);
- rb_io_write(arg->dest, buf);
- rb_str_resize(buf, 0);
- }
-}
-
-static void
-w_byte(char c, struct dump_arg *arg)
-{
- w_nbyte(&c, 1, arg);
-}
-
-static void
-w_bytes(const char *s, int n, struct dump_arg *arg)
-{
- w_long(n, arg);
- w_nbyte(s, n, arg);
-}
-
-static void
-w_short(int x, struct dump_arg *arg)
-{
- w_byte((char)((x >> 0) & 0xff), arg);
- w_byte((char)((x >> 8) & 0xff), arg);
-}
-
-static void
-w_long(long x, struct dump_arg *arg)
-{
- char buf[sizeof(long)+1];
- int i, len = 0;
-
-#if SIZEOF_LONG > 4
- if (!(RSHIFT(x, 31) == 0 || RSHIFT(x, 31) == -1)) {
- /* big long does not fit in 4 bytes */
- rb_raise(rb_eTypeError, "long too big to dump");
- }
-#endif
-
- if (x == 0) {
- w_byte(0, arg);
- return;
- }
- if (0 < x && x < 123) {
- w_byte((char)(x + 5), arg);
- return;
- }
- if (-124 < x && x < 0) {
- w_byte((char)((x - 5)&0xff), arg);
- return;
- }
- for (i=1;i<sizeof(long)+1;i++) {
- buf[i] = x & 0xff;
- x = RSHIFT(x,8);
- if (x == 0) {
- buf[0] = i;
- break;
- }
- if (x == -1) {
- buf[0] = -i;
- break;
- }
- }
- len = i;
- for (i=0;i<=len;i++) {
- w_byte(buf[i], arg);
- }
-}
-
-#ifdef DBL_MANT_DIG
-#define DECIMAL_MANT (53-16) /* from IEEE754 double precision */
-
-#if DBL_MANT_DIG > 32
-#define MANT_BITS 32
-#elif DBL_MANT_DIG > 24
-#define MANT_BITS 24
-#elif DBL_MANT_DIG > 16
-#define MANT_BITS 16
-#else
-#define MANT_BITS 8
-#endif
-
-static int
-save_mantissa(double d, char *buf)
-{
- int e, i = 0;
- unsigned long m;
- double n;
-
- d = modf(ldexp(frexp(fabs(d), &e), DECIMAL_MANT), &d);
- if (d > 0) {
- buf[i++] = 0;
- do {
- d = modf(ldexp(d, MANT_BITS), &n);
- m = (unsigned long)n;
-#if MANT_BITS > 24
- buf[i++] = m >> 24;
-#endif
-#if MANT_BITS > 16
- buf[i++] = m >> 16;
-#endif
-#if MANT_BITS > 8
- buf[i++] = m >> 8;
-#endif
- buf[i++] = m;
- } while (d > 0);
- while (!buf[i - 1]) --i;
- }
- return i;
-}
-
-static double
-load_mantissa(double d, const char *buf, int len)
-{
- if (--len > 0 && !*buf++) { /* binary mantissa mark */
- int e, s = d < 0, dig = 0;
- unsigned long m;
-
- modf(ldexp(frexp(fabs(d), &e), DECIMAL_MANT), &d);
- do {
- m = 0;
- switch (len) {
- default: m = *buf++ & 0xff;
-#if MANT_BITS > 24
- case 3: m = (m << 8) | (*buf++ & 0xff);
-#endif
-#if MANT_BITS > 16
- case 2: m = (m << 8) | (*buf++ & 0xff);
-#endif
-#if MANT_BITS > 8
- case 1: m = (m << 8) | (*buf++ & 0xff);
-#endif
- }
- dig -= len < MANT_BITS / 8 ? 8 * (unsigned)len : MANT_BITS;
- d += ldexp((double)m, dig);
- } while ((len -= MANT_BITS / 8) > 0);
- d = ldexp(d, e - DECIMAL_MANT);
- if (s) d = -d;
- }
- return d;
-}
-#else
-#define load_mantissa(d, buf, len) (d)
-#define save_mantissa(d, buf) 0
-#endif
-
-#ifdef DBL_DIG
-#define FLOAT_DIG (DBL_DIG+2)
-#else
-#define FLOAT_DIG 17
-#endif
-
-static void
-w_float(double d, struct dump_arg *arg)
-{
- char buf[FLOAT_DIG + (DECIMAL_MANT + 7) / 8 + 10];
-
- if (isinf(d)) {
- if (d < 0) strcpy(buf, "-inf");
- else strcpy(buf, "inf");
- }
- else if (isnan(d)) {
- strcpy(buf, "nan");
- }
- else if (d == 0.0) {
- if (1.0/d < 0) strcpy(buf, "-0");
- else strcpy(buf, "0");
- }
- else {
- int len;
-
- /* xxx: should not use system's sprintf(3) */
- snprintf(buf, sizeof(buf), "%.*g", FLOAT_DIG, d);
- len = strlen(buf);
- w_bytes(buf, len + save_mantissa(d, buf + len), arg);
- return;
- }
- w_bytes(buf, strlen(buf), arg);
-}
-
-static void
-w_symbol(ID id, struct dump_arg *arg)
-{
- const char *sym;
- st_data_t num;
-
- if (st_lookup(arg->symbols, id, &num)) {
- w_byte(TYPE_SYMLINK, arg);
- w_long((long)num, arg);
- }
- else {
- sym = rb_id2name(id);
- if (!sym) {
- rb_raise(rb_eTypeError, "can't dump anonymous ID %ld", id);
- }
- w_byte(TYPE_SYMBOL, arg);
- w_bytes(sym, strlen(sym), arg);
- st_add_direct(arg->symbols, id, arg->symbols->num_entries);
- }
-}
-
-static void
-w_unique(const char *s, struct dump_arg *arg)
-{
- if (s[0] == '#') {
- rb_raise(rb_eTypeError, "can't dump anonymous class %s", s);
- }
- w_symbol(rb_intern(s), arg);
-}
-
-static void w_object(VALUE,struct dump_arg*,int);
-
-static int
-hash_each(VALUE key, VALUE value, struct dump_call_arg *arg)
-{
- w_object(key, arg->arg, arg->limit);
- w_object(value, arg->arg, arg->limit);
- return ST_CONTINUE;
-}
-
-static void
-w_extended(VALUE klass, struct dump_arg *arg, int check)
-{
- const char *path;
-
- if (check && FL_TEST(klass, FL_SINGLETON)) {
- if (RCLASS_M_TBL(klass)->num_entries ||
- (RCLASS_IV_TBL(klass) && RCLASS_IV_TBL(klass)->num_entries > 1)) {
- rb_raise(rb_eTypeError, "singleton can't be dumped");
- }
- klass = RCLASS_SUPER(klass);
- }
- while (BUILTIN_TYPE(klass) == T_ICLASS) {
- path = rb_class2name(RBASIC(klass)->klass);
- w_byte(TYPE_EXTENDED, arg);
- w_unique(path, arg);
- klass = RCLASS_SUPER(klass);
- }
-}
-
-static void
-w_class(char type, VALUE obj, struct dump_arg *arg, int check)
-{
- volatile VALUE p;
- char *path;
- st_data_t real_obj;
- VALUE klass;
-
- if (st_lookup(arg->compat_tbl, (st_data_t)obj, &real_obj)) {
- obj = (VALUE)real_obj;
- }
- klass = CLASS_OF(obj);
- w_extended(klass, arg, check);
- w_byte(type, arg);
- p = class2path(rb_class_real(klass));
- path = RSTRING_PTR(p);
- w_unique(path, arg);
-}
-
-static void
-w_uclass(VALUE obj, VALUE super, struct dump_arg *arg)
-{
- VALUE klass = CLASS_OF(obj);
-
- w_extended(klass, arg, Qtrue);
- klass = rb_class_real(klass);
- if (klass != super) {
- w_byte(TYPE_UCLASS, arg);
- w_unique(RSTRING_PTR(class2path(klass)), arg);
- }
-}
-
-static int
-w_obj_each(ID id, VALUE value, struct dump_call_arg *arg)
-{
- if (id == rb_id_encoding()) return ST_CONTINUE;
- w_symbol(id, arg->arg);
- w_object(value, arg->arg, arg->limit);
- return ST_CONTINUE;
-}
-
-static void
-w_encoding(VALUE obj, long num, struct dump_call_arg *arg)
-{
- int encidx = rb_enc_get_index(obj);
- rb_encoding *enc = 0;
- st_data_t name;
-
- if (encidx <= 0 || !(enc = rb_enc_from_index(encidx))) {
- w_long(num, arg->arg);
- return;
- }
- w_long(num + 1, arg->arg);
- w_symbol(rb_id_encoding(), arg->arg);
- do {
- if (!arg->arg->encodings)
- arg->arg->encodings = st_init_strcasetable();
- else if (st_lookup(arg->arg->encodings, (st_data_t)rb_enc_name(enc), &name))
- break;
- name = (st_data_t)rb_str_new2(rb_enc_name(enc));
- st_insert(arg->arg->encodings, (st_data_t)rb_enc_name(enc), name);
- } while (0);
- w_object(name, arg->arg, arg->limit);
-}
-
-static void
-w_ivar(VALUE obj, st_table *tbl, struct dump_call_arg *arg)
-{
- long num = tbl ? tbl->num_entries : 0;
-
- w_encoding(obj, num, arg);
- if (tbl) {
- st_foreach_safe(tbl, w_obj_each, (st_data_t)arg);
- }
-}
-
-static void
-w_objivar(VALUE obj, struct dump_call_arg *arg)
-{
- VALUE *ptr;
- long i, len, num;
-
- len = ROBJECT_NUMIV(obj);
- ptr = ROBJECT_IVPTR(obj);
- num = 0;
- for (i = 0; i < len; i++)
- if (ptr[i] != Qundef)
- num += 1;
-
- w_encoding(obj, num, arg);
- if (num != 0) {
- rb_ivar_foreach(obj, w_obj_each, (st_data_t)arg);
- }
-}
-
-static void
-w_object(VALUE obj, struct dump_arg *arg, int limit)
-{
- struct dump_call_arg c_arg;
- st_table *ivtbl = 0;
- st_data_t num;
- int hasiv = 0;
-#define has_ivars(obj, ivtbl) ((ivtbl = rb_generic_ivar_table(obj)) != 0 || \
- (!SPECIAL_CONST_P(obj) && !ENCODING_IS_ASCII8BIT(obj)))
-
- if (limit == 0) {
- rb_raise(rb_eArgError, "exceed depth limit");
- }
-
- limit--;
- c_arg.limit = limit;
- c_arg.arg = arg;
-
- if (st_lookup(arg->data, obj, &num)) {
- w_byte(TYPE_LINK, arg);
- w_long((long)num, arg);
- return;
- }
-
- if ((hasiv = has_ivars(obj, ivtbl)) != 0) {
- w_byte(TYPE_IVAR, arg);
- }
- if (obj == Qnil) {
- w_byte(TYPE_NIL, arg);
- }
- else if (obj == Qtrue) {
- w_byte(TYPE_TRUE, arg);
- }
- else if (obj == Qfalse) {
- w_byte(TYPE_FALSE, arg);
- }
- else if (FIXNUM_P(obj)) {
-#if SIZEOF_LONG <= 4
- w_byte(TYPE_FIXNUM, arg);
- w_long(FIX2INT(obj), arg);
-#else
- if (RSHIFT((long)obj, 31) == 0 || RSHIFT((long)obj, 31) == -1) {
- w_byte(TYPE_FIXNUM, arg);
- w_long(FIX2LONG(obj), arg);
- }
- else {
- w_object(rb_int2big(FIX2LONG(obj)), arg, limit);
- }
-#endif
- }
- else if (SYMBOL_P(obj)) {
- w_symbol(SYM2ID(obj), arg);
- }
- else {
- if (OBJ_TAINTED(obj)) arg->taint = Qtrue;
- if (OBJ_UNTRUSTED(obj)) arg->untrust = Qtrue;
-
- if (rb_respond_to(obj, s_mdump)) {
- volatile VALUE v;
-
- st_add_direct(arg->data, obj, arg->data->num_entries);
-
- v = rb_funcall(obj, s_mdump, 0, 0);
- check_dump_arg(arg);
- w_class(TYPE_USRMARSHAL, obj, arg, Qfalse);
- w_object(v, arg, limit);
- if (hasiv) w_ivar(obj, 0, &c_arg);
- return;
- }
- if (rb_respond_to(obj, s_dump)) {
- VALUE v;
- st_table *ivtbl2 = 0;
- int hasiv2;
-
- v = rb_funcall(obj, s_dump, 1, INT2NUM(limit));
- check_dump_arg(arg);
- if (TYPE(v) != T_STRING) {
- rb_raise(rb_eTypeError, "_dump() must return string");
- }
- if ((hasiv2 = has_ivars(v, ivtbl2)) != 0 && !hasiv) {
- w_byte(TYPE_IVAR, arg);
- }
- w_class(TYPE_USERDEF, obj, arg, Qfalse);
- w_bytes(RSTRING_PTR(v), RSTRING_LEN(v), arg);
- if (hasiv2) {
- w_ivar(v, ivtbl2, &c_arg);
- }
- else if (hasiv) {
- w_ivar(obj, ivtbl, &c_arg);
- }
- st_add_direct(arg->data, obj, arg->data->num_entries);
- return;
- }
-
- st_add_direct(arg->data, obj, arg->data->num_entries);
-
- {
- st_data_t compat_data;
- rb_alloc_func_t allocator = rb_get_alloc_func(RBASIC(obj)->klass);
- if (st_lookup(compat_allocator_tbl,
- (st_data_t)allocator,
- &compat_data)) {
- marshal_compat_t *compat = (marshal_compat_t*)compat_data;
- VALUE real_obj = obj;
- obj = compat->dumper(real_obj);
- st_insert(arg->compat_tbl, (st_data_t)obj, (st_data_t)real_obj);
- }
- }
-
- switch (BUILTIN_TYPE(obj)) {
- case T_CLASS:
- if (FL_TEST(obj, FL_SINGLETON)) {
- rb_raise(rb_eTypeError, "singleton class can't be dumped");
- }
- w_byte(TYPE_CLASS, arg);
- {
- volatile VALUE path = class2path(obj);
- w_bytes(RSTRING_PTR(path), RSTRING_LEN(path), arg);
- }
- break;
-
- case T_MODULE:
- w_byte(TYPE_MODULE, arg);
- {
- VALUE path = class2path(obj);
- w_bytes(RSTRING_PTR(path), RSTRING_LEN(path), arg);
- }
- break;
-
- case T_FLOAT:
- w_byte(TYPE_FLOAT, arg);
- w_float(RFLOAT_VALUE(obj), arg);
- break;
-
- case T_BIGNUM:
- w_byte(TYPE_BIGNUM, arg);
- {
- char sign = RBIGNUM_SIGN(obj) ? '+' : '-';
- long len = RBIGNUM_LEN(obj);
- BDIGIT *d = RBIGNUM_DIGITS(obj);
-
- w_byte(sign, arg);
- w_long(SHORTLEN(len), arg); /* w_short? */
- while (len--) {
-#if SIZEOF_BDIGITS > SIZEOF_SHORT
- BDIGIT num = *d;
- int i;
-
- for (i=0; i<SIZEOF_BDIGITS; i+=SIZEOF_SHORT) {
- w_short(num & SHORTMASK, arg);
- num = SHORTDN(num);
- if (len == 0 && num == 0) break;
- }
-#else
- w_short(*d, arg);
-#endif
- d++;
- }
- }
- break;
-
- case T_STRING:
- w_uclass(obj, rb_cString, arg);
- w_byte(TYPE_STRING, arg);
- w_bytes(RSTRING_PTR(obj), RSTRING_LEN(obj), arg);
- break;
-
- case T_REGEXP:
- w_uclass(obj, rb_cRegexp, arg);
- w_byte(TYPE_REGEXP, arg);
- {
- int opts = rb_reg_options(obj);
- w_bytes(RREGEXP_SRC_PTR(obj), RREGEXP_SRC_LEN(obj), arg);
- w_byte((char)opts, arg);
- }
- break;
-
- case T_ARRAY:
- w_uclass(obj, rb_cArray, arg);
- w_byte(TYPE_ARRAY, arg);
- {
- long i, len = RARRAY_LEN(obj);
-
- w_long(len, arg);
- for (i=0; i<RARRAY_LEN(obj); i++) {
- w_object(RARRAY_PTR(obj)[i], arg, limit);
- if (len != RARRAY_LEN(obj)) {
- rb_raise(rb_eRuntimeError, "array modified during dump");
- }
- }
- }
- break;
-
- case T_HASH:
- w_uclass(obj, rb_cHash, arg);
- if (NIL_P(RHASH(obj)->ifnone)) {
- w_byte(TYPE_HASH, arg);
- }
- else if (FL_TEST(obj, FL_USER2)) {
- /* FL_USER2 means HASH_PROC_DEFAULT (see hash.c) */
- rb_raise(rb_eTypeError, "can't dump hash with default proc");
- }
- else {
- w_byte(TYPE_HASH_DEF, arg);
- }
- w_long(RHASH_SIZE(obj), arg);
- rb_hash_foreach(obj, hash_each, (st_data_t)&c_arg);
- if (!NIL_P(RHASH(obj)->ifnone)) {
- w_object(RHASH(obj)->ifnone, arg, limit);
- }
- break;
-
- case T_STRUCT:
- w_class(TYPE_STRUCT, obj, arg, Qtrue);
- {
- long len = RSTRUCT_LEN(obj);
- VALUE mem;
- long i;
-
- w_long(len, arg);
- mem = rb_struct_members(obj);
- for (i=0; i<len; i++) {
- w_symbol(SYM2ID(RARRAY_PTR(mem)[i]), arg);
- w_object(RSTRUCT_PTR(obj)[i], arg, limit);
- }
- }
- break;
-
- case T_OBJECT:
- w_class(TYPE_OBJECT, obj, arg, Qtrue);
- w_objivar(obj, &c_arg);
- break;
-
- case T_DATA:
- {
- VALUE v;
-
- if (!rb_respond_to(obj, s_dump_data)) {
- rb_raise(rb_eTypeError,
- "no marshal_dump is defined for class %s",
- rb_obj_classname(obj));
- }
- v = rb_funcall(obj, s_dump_data, 0);
- check_dump_arg(arg);
- w_class(TYPE_DATA, obj, arg, Qtrue);
- w_object(v, arg, limit);
- }
- break;
-
- default:
- rb_raise(rb_eTypeError, "can't dump %s",
- rb_obj_classname(obj));
- break;
- }
- }
- if (hasiv) {
- w_ivar(obj, ivtbl, &c_arg);
- }
-}
-
-static VALUE
-dump(struct dump_call_arg *arg)
-{
- w_object(arg->obj, arg->arg, arg->limit);
- if (arg->arg->dest) {
- rb_io_write(arg->arg->dest, arg->arg->str);
- rb_str_resize(arg->arg->str, 0);
- }
- return 0;
-}
-
-static VALUE
-dump_ensure(struct dump_arg *arg)
-{
- if (!DATA_PTR(arg->wrapper)) return 0;
- st_free_table(arg->symbols);
- st_free_table(arg->data);
- st_free_table(arg->compat_tbl);
- if (arg->encodings) st_free_table(arg->encodings);
- DATA_PTR(arg->wrapper) = 0;
- arg->wrapper = 0;
- if (arg->taint) {
- OBJ_TAINT(arg->str);
- }
- if (arg->untrust) {
- OBJ_UNTRUST(arg->str);
- }
- return 0;
-}
-
-/*
- * call-seq:
- * dump( obj [, anIO] , limit=--1 ) => anIO
- *
- * Serializes obj and all descendent objects. If anIO is
- * specified, the serialized data will be written to it, otherwise the
- * data will be returned as a String. If limit is specified, the
- * traversal of subobjects will be limited to that depth. If limit is
- * negative, no checking of depth will be performed.
- *
- * class Klass
- * def initialize(str)
- * @str = str
- * end
- * def sayHello
- * @str
- * end
- * end
- *
- * (produces no output)
- *
- * o = Klass.new("hello\n")
- * data = Marshal.dump(o)
- * obj = Marshal.load(data)
- * obj.sayHello #=> "hello\n"
- */
-static VALUE
-marshal_dump(int argc, VALUE *argv)
-{
- VALUE obj, port, a1, a2;
- int limit = -1;
- struct dump_arg arg;
- struct dump_call_arg c_arg;
-
- port = Qnil;
- rb_scan_args(argc, argv, "12", &obj, &a1, &a2);
- if (argc == 3) {
- if (!NIL_P(a2)) limit = NUM2INT(a2);
- if (NIL_P(a1)) goto type_error;
- port = a1;
- }
- else if (argc == 2) {
- if (FIXNUM_P(a1)) limit = FIX2INT(a1);
- else if (NIL_P(a1)) goto type_error;
- else port = a1;
- }
- arg.dest = 0;
- if (!NIL_P(port)) {
- if (!rb_respond_to(port, s_write)) {
- type_error:
- rb_raise(rb_eTypeError, "instance of IO needed");
- }
- arg.str = rb_str_buf_new(0);
- arg.dest = port;
- if (rb_respond_to(port, s_binmode)) {
- rb_funcall2(port, s_binmode, 0, 0);
- }
- }
- else {
- port = rb_str_buf_new(0);
- arg.str = port;
- }
-
- arg.symbols = st_init_numtable();
- arg.data = st_init_numtable();
- arg.taint = Qfalse;
- arg.untrust = Qfalse;
- arg.compat_tbl = st_init_numtable();
- arg.wrapper = Data_Wrap_Struct(rb_cData, mark_dump_arg, 0, &arg);
- arg.encodings = 0;
- c_arg.obj = obj;
- c_arg.arg = &arg;
- c_arg.limit = limit;
-
- w_byte(MARSHAL_MAJOR, &arg);
- w_byte(MARSHAL_MINOR, &arg);
-
- rb_ensure(dump, (VALUE)&c_arg, dump_ensure, (VALUE)&arg);
-
- return port;
-}
-
-struct load_arg {
- VALUE src;
- long offset;
- st_table *symbols;
- VALUE data;
- VALUE proc;
- int taint;
- int untrust;
- st_table *compat_tbl;
- VALUE compat_tbl_wrapper;
-};
-
-static void
-check_load_arg(struct load_arg *arg)
-{
- if (!DATA_PTR(arg->compat_tbl_wrapper)) {
- rb_raise(rb_eRuntimeError, "Marshal.load reentered");
- }
-}
-
-static VALUE r_entry(VALUE v, struct load_arg *arg);
-static VALUE r_object(struct load_arg *arg);
-static VALUE path2class(const char *path);
-
-static int
-r_byte(struct load_arg *arg)
-{
- int c;
-
- if (TYPE(arg->src) == T_STRING) {
- if (RSTRING_LEN(arg->src) > arg->offset) {
- c = (unsigned char)RSTRING_PTR(arg->src)[arg->offset++];
- }
- else {
- rb_raise(rb_eArgError, "marshal data too short");
- }
- }
- else {
- VALUE src = arg->src;
- VALUE v = rb_funcall2(src, s_getbyte, 0, 0);
- check_load_arg(arg);
- if (NIL_P(v)) rb_eof_error();
- c = (unsigned char)NUM2CHR(v);
- }
- return c;
-}
-
-static void
-long_toobig(int size)
-{
- rb_raise(rb_eTypeError, "long too big for this architecture (size "
- STRINGIZE(SIZEOF_LONG)", given %d)", size);
-}
-
-#undef SIGN_EXTEND_CHAR
-#if __STDC__
-# define SIGN_EXTEND_CHAR(c) ((signed char)(c))
-#else /* not __STDC__ */
-/* As in Harbison and Steele. */
-# define SIGN_EXTEND_CHAR(c) ((((unsigned char)(c)) ^ 128) - 128)
-#endif
-
-static long
-r_long(struct load_arg *arg)
-{
- register long x;
- int c = SIGN_EXTEND_CHAR(r_byte(arg));
- long i;
-
- if (c == 0) return 0;
- if (c > 0) {
- if (4 < c && c < 128) {
- return c - 5;
- }
- if (c > sizeof(long)) long_toobig(c);
- x = 0;
- for (i=0;i<c;i++) {
- x |= (long)r_byte(arg) << (8*i);
- }
- }
- else {
- if (-129 < c && c < -4) {
- return c + 5;
- }
- c = -c;
- if (c > sizeof(long)) long_toobig(c);
- x = -1;
- for (i=0;i<c;i++) {
- x &= ~((long)0xff << (8*i));
- x |= (long)r_byte(arg) << (8*i);
- }
- }
- return x;
-}
-
-#define r_bytes(arg) r_bytes0(r_long(arg), (arg))
-
-static VALUE
-r_bytes0(long len, struct load_arg *arg)
-{
- VALUE str;
-
- if (len == 0) return rb_str_new(0, 0);
- if (TYPE(arg->src) == T_STRING) {
- if (RSTRING_LEN(arg->src) - arg->offset >= len) {
- str = rb_str_new(RSTRING_PTR(arg->src)+arg->offset, len);
- arg->offset += len;
- }
- else {
- too_short:
- rb_raise(rb_eArgError, "marshal data too short");
- }
- }
- else {
- VALUE src = arg->src;
- VALUE n = LONG2NUM(len);
- str = rb_funcall2(src, s_read, 1, &n);
- check_load_arg(arg);
- if (NIL_P(str)) goto too_short;
- StringValue(str);
- if (RSTRING_LEN(str) != len) goto too_short;
- if (OBJ_TAINTED(str)) arg->taint = Qtrue;
- if (OBJ_UNTRUSTED(str)) arg->untrust = Qtrue;
- }
- return str;
-}
-
-static ID
-r_symlink(struct load_arg *arg)
-{
- ID id;
- long num = r_long(arg);
-
- if (st_lookup(arg->symbols, num, &id)) {
- return id;
- }
- rb_raise(rb_eArgError, "bad symbol");
-}
-
-static ID
-r_symreal(struct load_arg *arg)
-{
- volatile VALUE s = r_bytes(arg);
- ID id = rb_intern(RSTRING_PTR(s));
-
- st_insert(arg->symbols, arg->symbols->num_entries, id);
-
- return id;
-}
-
-static ID
-r_symbol(struct load_arg *arg)
-{
- int type;
-
- switch ((type = r_byte(arg))) {
- case TYPE_SYMBOL:
- return r_symreal(arg);
- case TYPE_SYMLINK:
- return r_symlink(arg);
- default:
- rb_raise(rb_eArgError, "dump format error(0x%x)", type);
- break;
- }
-}
-
-static const char*
-r_unique(struct load_arg *arg)
-{
- return rb_id2name(r_symbol(arg));
-}
-
-static VALUE
-r_string(struct load_arg *arg)
-{
- return r_bytes(arg);
-}
-
-static VALUE
-r_entry(VALUE v, struct load_arg *arg)
-{
- st_data_t real_obj = (VALUE)Qundef;
- if (st_lookup(arg->compat_tbl, v, &real_obj)) {
- rb_hash_aset(arg->data, INT2FIX(RHASH_SIZE(arg->data)), (VALUE)real_obj);
- }
- else {
- rb_hash_aset(arg->data, INT2FIX(RHASH_SIZE(arg->data)), v);
- }
- if (arg->taint) {
- OBJ_TAINT(v);
- if ((VALUE)real_obj != Qundef)
- OBJ_TAINT((VALUE)real_obj);
- }
- if (arg->untrust) {
- OBJ_UNTRUST(v);
- if ((VALUE)real_obj != Qundef)
- OBJ_UNTRUST((VALUE)real_obj);
- }
- return v;
-}
-
-static VALUE
-r_leave(VALUE v, struct load_arg *arg)
-{
- st_data_t data;
- if (st_lookup(arg->compat_tbl, v, &data)) {
- VALUE real_obj = (VALUE)data;
- rb_alloc_func_t allocator = rb_get_alloc_func(CLASS_OF(real_obj));
- st_data_t key = v;
- if (st_lookup(compat_allocator_tbl, (st_data_t)allocator, &data)) {
- marshal_compat_t *compat = (marshal_compat_t*)data;
- compat->loader(real_obj, v);
- }
- st_delete(arg->compat_tbl, &key, 0);
- v = real_obj;
- }
- if (arg->proc) {
- v = rb_funcall(arg->proc, rb_intern("call"), 1, v);
- check_load_arg(arg);
- }
- return v;
-}
-
-static void
-r_ivar(VALUE obj, struct load_arg *arg)
-{
- long len;
-
- len = r_long(arg);
- if (len > 0) {
- while (len--) {
- ID id = r_symbol(arg);
- VALUE val = r_object(arg);
- if (id == rb_id_encoding()) {
- int idx = rb_enc_find_index(StringValueCStr(val));
- if (idx > 0) rb_enc_associate_index(obj, idx);
- }
- else {
- rb_ivar_set(obj, id, val);
- }
- }
- }
-}
-
-static VALUE
-path2class(const char *path)
-{
- VALUE v = rb_path2class(path);
-
- if (TYPE(v) != T_CLASS) {
- rb_raise(rb_eArgError, "%s does not refer class", path);
- }
- return v;
-}
-
-static VALUE
-path2module(const char *path)
-{
- VALUE v = rb_path2class(path);
-
- if (TYPE(v) != T_MODULE) {
- rb_raise(rb_eArgError, "%s does not refer module", path);
- }
- return v;
-}
-
-static VALUE
-obj_alloc_by_path(const char *path, struct load_arg *arg)
-{
- VALUE klass;
- st_data_t data;
- rb_alloc_func_t allocator;
-
- klass = path2class(path);
-
- allocator = rb_get_alloc_func(klass);
- if (st_lookup(compat_allocator_tbl, (st_data_t)allocator, &data)) {
- marshal_compat_t *compat = (marshal_compat_t*)data;
- VALUE real_obj = rb_obj_alloc(klass);
- VALUE obj = rb_obj_alloc(compat->oldclass);
- st_insert(arg->compat_tbl, (st_data_t)obj, (st_data_t)real_obj);
- return obj;
- }
-
- return rb_obj_alloc(klass);
-}
-
-static VALUE
-r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
-{
- VALUE v = Qnil;
- int type = r_byte(arg);
- long id;
-
- switch (type) {
- case TYPE_LINK:
- id = r_long(arg);
- v = rb_hash_aref(arg->data, LONG2FIX(id));
- check_load_arg(arg);
- if (NIL_P(v)) {
- rb_raise(rb_eArgError, "dump format error (unlinked)");
- }
- if (arg->proc) {
- v = rb_funcall(arg->proc, rb_intern("call"), 1, v);
- check_load_arg(arg);
- }
- break;
-
- case TYPE_IVAR:
- {
- int ivar = Qtrue;
-
- v = r_object0(arg, &ivar, extmod);
- if (ivar) r_ivar(v, arg);
- }
- break;
-
- case TYPE_EXTENDED:
- {
- VALUE m = path2module(r_unique(arg));
-
- if (NIL_P(extmod)) extmod = rb_ary_new2(0);
- rb_ary_push(extmod, m);
-
- v = r_object0(arg, 0, extmod);
- while (RARRAY_LEN(extmod) > 0) {
- m = rb_ary_pop(extmod);
- rb_extend_object(v, m);
- }
- }
- break;
-
- case TYPE_UCLASS:
- {
- VALUE c = path2class(r_unique(arg));
-
- if (FL_TEST(c, FL_SINGLETON)) {
- rb_raise(rb_eTypeError, "singleton can't be loaded");
- }
- v = r_object0(arg, 0, extmod);
- if (rb_special_const_p(v) || TYPE(v) == T_OBJECT || TYPE(v) == T_CLASS) {
- format_error:
- rb_raise(rb_eArgError, "dump format error (user class)");
- }
- if (TYPE(v) == T_MODULE || !RTEST(rb_class_inherited_p(c, RBASIC(v)->klass))) {
- VALUE tmp = rb_obj_alloc(c);
-
- if (TYPE(v) != TYPE(tmp)) goto format_error;
- }
- RBASIC(v)->klass = c;
- }
- break;
-
- case TYPE_NIL:
- v = Qnil;
- v = r_leave(v, arg);
- break;
-
- case TYPE_TRUE:
- v = Qtrue;
- v = r_leave(v, arg);
- break;
-
- case TYPE_FALSE:
- v = Qfalse;
- v = r_leave(v, arg);
- break;
-
- case TYPE_FIXNUM:
- {
- long i = r_long(arg);
- v = LONG2FIX(i);
- }
- v = r_leave(v, arg);
- break;
-
- case TYPE_FLOAT:
- {
- double d, t = 0.0;
- VALUE str = r_bytes(arg);
- const char *ptr = RSTRING_PTR(str);
-
- if (strcmp(ptr, "nan") == 0) {
- d = t / t;
- }
- else if (strcmp(ptr, "inf") == 0) {
- d = 1.0 / t;
- }
- else if (strcmp(ptr, "-inf") == 0) {
- d = -1.0 / t;
- }
- else {
- char *e;
- d = strtod(ptr, &e);
- d = load_mantissa(d, e, RSTRING_LEN(str) - (e - ptr));
- }
- v = DOUBLE2NUM(d);
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_BIGNUM:
- {
- long len;
- BDIGIT *digits;
- volatile VALUE data;
-
- NEWOBJ(big, struct RBignum);
- OBJSETUP(big, rb_cBignum, T_BIGNUM);
- RBIGNUM_SET_SIGN(big, (r_byte(arg) == '+'));
- len = r_long(arg);
- data = r_bytes0(len * 2, arg);
-#if SIZEOF_BDIGITS == SIZEOF_SHORT
- rb_big_resize((VALUE)big, len);
-#else
- rb_big_resize((VALUE)big, (len + 1) * 2 / sizeof(BDIGIT));
-#endif
- digits = RBIGNUM_DIGITS(big);
- MEMCPY(digits, RSTRING_PTR(data), char, len * 2);
-#if SIZEOF_BDIGITS > SIZEOF_SHORT
- MEMZERO((char *)digits + len * 2, char,
- RBIGNUM_LEN(big) * sizeof(BDIGIT) - len * 2);
-#endif
- len = RBIGNUM_LEN(big);
- while (len > 0) {
- unsigned char *p = (unsigned char *)digits;
- BDIGIT num = 0;
-#if SIZEOF_BDIGITS > SIZEOF_SHORT
- int shift = 0;
- int i;
-
- for (i=0; i<SIZEOF_BDIGITS; i++) {
- num |= (int)p[i] << shift;
- shift += 8;
- }
-#else
- num = p[0] | (p[1] << 8);
-#endif
- *digits++ = num;
- len--;
- }
- v = rb_big_norm((VALUE)big);
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_STRING:
- v = r_entry(r_string(arg), arg);
- v = r_leave(v, arg);
- break;
-
- case TYPE_REGEXP:
- {
- volatile VALUE str = r_bytes(arg);
- int options = r_byte(arg);
- v = r_entry(rb_reg_new_str(str, options), arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_ARRAY:
- {
- volatile long len = r_long(arg); /* gcc 2.7.2.3 -O2 bug?? */
-
- v = rb_ary_new2(len);
- v = r_entry(v, arg);
- while (len--) {
- rb_ary_push(v, r_object(arg));
- }
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_HASH:
- case TYPE_HASH_DEF:
- {
- long len = r_long(arg);
-
- v = rb_hash_new();
- v = r_entry(v, arg);
- while (len--) {
- VALUE key = r_object(arg);
- VALUE value = r_object(arg);
- rb_hash_aset(v, key, value);
- }
- if (type == TYPE_HASH_DEF) {
- RHASH(v)->ifnone = r_object(arg);
- }
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_STRUCT:
- {
- VALUE klass, mem;
- VALUE values;
- volatile long i; /* gcc 2.7.2.3 -O2 bug?? */
- long len;
- ID slot;
-
- klass = path2class(r_unique(arg));
- len = r_long(arg);
-
- v = rb_obj_alloc(klass);
- if (TYPE(v) != T_STRUCT) {
- rb_raise(rb_eTypeError, "class %s not a struct", rb_class2name(klass));
- }
- mem = rb_struct_s_members(klass);
- if (RARRAY_LEN(mem) != len) {
- rb_raise(rb_eTypeError, "struct %s not compatible (struct size differs)",
- rb_class2name(klass));
- }
-
- v = r_entry(v, arg);
- values = rb_ary_new2(len);
- for (i=0; i<len; i++) {
- slot = r_symbol(arg);
-
- if (RARRAY_PTR(mem)[i] != ID2SYM(slot)) {
- rb_raise(rb_eTypeError, "struct %s not compatible (:%s for :%s)",
- rb_class2name(klass),
- rb_id2name(slot),
- rb_id2name(SYM2ID(RARRAY_PTR(mem)[i])));
- }
- rb_ary_push(values, r_object(arg));
- }
- rb_struct_initialize(v, values);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_USERDEF:
- {
- VALUE klass = path2class(r_unique(arg));
- VALUE data;
-
- if (!rb_respond_to(klass, s_load)) {
- rb_raise(rb_eTypeError, "class %s needs to have method `_load'",
- rb_class2name(klass));
- }
- data = r_string(arg);
- if (ivp) {
- r_ivar(data, arg);
- *ivp = Qfalse;
- }
- v = rb_funcall(klass, s_load, 1, data);
- check_load_arg(arg);
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_USRMARSHAL:
- {
- VALUE klass = path2class(r_unique(arg));
- VALUE data;
-
- v = rb_obj_alloc(klass);
- if (!NIL_P(extmod)) {
- while (RARRAY_LEN(extmod) > 0) {
- VALUE m = rb_ary_pop(extmod);
- rb_extend_object(v, m);
- }
- }
- if (!rb_respond_to(v, s_mload)) {
- rb_raise(rb_eTypeError, "instance of %s needs to have method `marshal_load'",
- rb_class2name(klass));
- }
- v = r_entry(v, arg);
- data = r_object(arg);
- rb_funcall(v, s_mload, 1, data);
- check_load_arg(arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_OBJECT:
- {
- v = obj_alloc_by_path(r_unique(arg), arg);
- if (TYPE(v) != T_OBJECT) {
- rb_raise(rb_eArgError, "dump format error");
- }
- v = r_entry(v, arg);
- r_ivar(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_DATA:
- {
- VALUE klass = path2class(r_unique(arg));
- if (rb_respond_to(klass, s_alloc)) {
- static int warn = Qtrue;
- if (warn) {
- rb_warn("define `allocate' instead of `_alloc'");
- warn = Qfalse;
- }
- v = rb_funcall(klass, s_alloc, 0);
- check_load_arg(arg);
- }
- else {
- v = rb_obj_alloc(klass);
- }
- if (TYPE(v) != T_DATA) {
- rb_raise(rb_eArgError, "dump format error");
- }
- v = r_entry(v, arg);
- if (!rb_respond_to(v, s_load_data)) {
- rb_raise(rb_eTypeError,
- "class %s needs to have instance method `_load_data'",
- rb_class2name(klass));
- }
- rb_funcall(v, s_load_data, 1, r_object0(arg, 0, extmod));
- check_load_arg(arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_MODULE_OLD:
- {
- volatile VALUE str = r_bytes(arg);
-
- v = rb_path2class(RSTRING_PTR(str));
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_CLASS:
- {
- volatile VALUE str = r_bytes(arg);
-
- v = path2class(RSTRING_PTR(str));
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_MODULE:
- {
- volatile VALUE str = r_bytes(arg);
-
- v = path2module(RSTRING_PTR(str));
- v = r_entry(v, arg);
- v = r_leave(v, arg);
- }
- break;
-
- case TYPE_SYMBOL:
- v = ID2SYM(r_symreal(arg));
- v = r_leave(v, arg);
- break;
-
- case TYPE_SYMLINK:
- v = ID2SYM(r_symlink(arg));
- break;
-
- default:
- rb_raise(rb_eArgError, "dump format error(0x%x)", type);
- break;
- }
- return v;
-}
-
-static VALUE
-r_object(struct load_arg *arg)
-{
- return r_object0(arg, 0, Qnil);
-}
-
-static VALUE
-load(struct load_arg *arg)
-{
- return r_object(arg);
-}
-
-static VALUE
-load_ensure(struct load_arg *arg)
-{
- if (!DATA_PTR(arg->compat_tbl_wrapper)) return 0;
- st_free_table(arg->symbols);
- st_free_table(arg->compat_tbl);
- DATA_PTR(arg->compat_tbl_wrapper) = 0;
- arg->compat_tbl_wrapper = 0;
- return 0;
-}
-
-/*
- * call-seq:
- * load( source [, proc] ) => obj
- * restore( source [, proc] ) => obj
- *
- * Returns the result of converting the serialized data in source into a
- * Ruby object (possibly with associated subordinate objects). source
- * may be either an instance of IO or an object that responds to
- * to_str. If proc is specified, it will be passed each object as it
- * is deserialized.
- */
-static VALUE
-marshal_load(int argc, VALUE *argv)
-{
- VALUE port, proc;
- int major, minor;
- VALUE v;
- struct load_arg arg;
-
- rb_scan_args(argc, argv, "11", &port, &proc);
- v = rb_check_string_type(port);
- if (!NIL_P(v)) {
- arg.taint = OBJ_TAINTED(port); /* original taintedness */
- port = v;
- }
- else if (rb_respond_to(port, s_getbyte) && rb_respond_to(port, s_read)) {
- if (rb_respond_to(port, s_binmode)) {
- rb_funcall2(port, s_binmode, 0, 0);
- }
- arg.taint = Qtrue;
- }
- else {
- rb_raise(rb_eTypeError, "instance of IO needed");
- }
- arg.untrust = OBJ_UNTRUSTED(port);
- arg.src = port;
- arg.offset = 0;
- arg.compat_tbl = st_init_numtable();
- arg.compat_tbl_wrapper = Data_Wrap_Struct(rb_cData, rb_mark_tbl, 0, arg.compat_tbl);
-
- major = r_byte(&arg);
- minor = r_byte(&arg);
- if (major != MARSHAL_MAJOR || minor > MARSHAL_MINOR) {
- rb_raise(rb_eTypeError, "incompatible marshal file format (can't be read)\n\
-\tformat version %d.%d required; %d.%d given",
- MARSHAL_MAJOR, MARSHAL_MINOR, major, minor);
- }
- if (RTEST(ruby_verbose) && minor != MARSHAL_MINOR) {
- rb_warn("incompatible marshal file format (can be read)\n\
-\tformat version %d.%d required; %d.%d given",
- MARSHAL_MAJOR, MARSHAL_MINOR, major, minor);
- }
-
- arg.symbols = st_init_numtable();
- arg.data = rb_hash_new();
- RBASIC(arg.data)->klass = 0;
- if (NIL_P(proc)) arg.proc = 0;
- else arg.proc = proc;
- v = rb_ensure(load, (VALUE)&arg, load_ensure, (VALUE)&arg);
-
- return v;
-}
-
-/*
- * The marshaling library converts collections of Ruby objects into a
- * byte stream, allowing them to be stored outside the currently
- * active script. This data may subsequently be read and the original
- * objects reconstituted.
- * Marshaled data has major and minor version numbers stored along
- * with the object information. In normal use, marshaling can only
- * load data written with the same major version number and an equal
- * or lower minor version number. If Ruby's ``verbose'' flag is set
- * (normally using -d, -v, -w, or --verbose) the major and minor
- * numbers must match exactly. Marshal versioning is independent of
- * Ruby's version numbers. You can extract the version by reading the
- * first two bytes of marshaled data.
- *
- * str = Marshal.dump("thing")
- * RUBY_VERSION #=> "1.9.0"
- * str[0].ord #=> 4
- * str[1].ord #=> 8
- *
- * Some objects cannot be dumped: if the objects to be dumped include
- * bindings, procedure or method objects, instances of class IO, or
- * singleton objects, a TypeError will be raised.
- * If your class has special serialization needs (for example, if you
- * want to serialize in some specific format), or if it contains
- * objects that would otherwise not be serializable, you can implement
- * your own serialization strategy by defining two methods, _dump and
- * _load:
- * The instance method _dump should return a String object containing
- * all the information necessary to reconstitute objects of this class
- * and all referenced objects up to a maximum depth given as an integer
- * parameter (a value of -1 implies that you should disable depth checking).
- * The class method _load should take a String and return an object of this class.
- */
-void
-Init_marshal(void)
-{
-#undef rb_intern
-#define rb_intern(str) rb_intern_const(str)
-
- VALUE rb_mMarshal = rb_define_module("Marshal");
-
- s_dump = rb_intern("_dump");
- s_load = rb_intern("_load");
- s_mdump = rb_intern("marshal_dump");
- s_mload = rb_intern("marshal_load");
- s_dump_data = rb_intern("_dump_data");
- s_load_data = rb_intern("_load_data");
- s_alloc = rb_intern("_alloc");
- s_getbyte = rb_intern("getbyte");
- s_read = rb_intern("read");
- s_write = rb_intern("write");
- s_binmode = rb_intern("binmode");
-
- rb_define_module_function(rb_mMarshal, "dump", marshal_dump, -1);
- rb_define_module_function(rb_mMarshal, "load", marshal_load, -1);
- rb_define_module_function(rb_mMarshal, "restore", marshal_load, -1);
-
- rb_define_const(rb_mMarshal, "MAJOR_VERSION", INT2FIX(MARSHAL_MAJOR));
- rb_define_const(rb_mMarshal, "MINOR_VERSION", INT2FIX(MARSHAL_MINOR));
-
- compat_allocator_tbl = st_init_numtable();
- rb_gc_register_address(&compat_allocator_tbl_wrapper);
- compat_allocator_tbl_wrapper =
- Data_Wrap_Struct(rb_cData, mark_marshal_compat_t, 0, compat_allocator_tbl);
-}
-
-VALUE
-rb_marshal_dump(VALUE obj, VALUE port)
-{
- int argc = 1;
- VALUE argv[2];
-
- argv[0] = obj;
- argv[1] = port;
- if (!NIL_P(port)) argc = 2;
- return marshal_dump(argc, argv);
-}
-
-VALUE
-rb_marshal_load(VALUE port)
-{
- return marshal_load(1, &port);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 21:31:24 +0000