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Diffstat (limited to 'ext/marshal/marshal.c')
-rw-r--r--ext/marshal/marshal.c850
1 files changed, 0 insertions, 850 deletions
diff --git a/ext/marshal/marshal.c b/ext/marshal/marshal.c
deleted file mode 100644
index 99e87d0b5f..0000000000
--- a/ext/marshal/marshal.c
+++ /dev/null
@@ -1,850 +0,0 @@
-/************************************************
-
- marshal.c -
-
- $Author$
- $Revision$
- $Date$
- created at: Thu Apr 27 16:30:01 JST 1995
-
-************************************************/
-
-#include "ruby.h"
-#include "io.h"
-#include "st.h"
-
-#define MARSHAL_MAJOR 4
-#define MARSHAL_MINOR 0
-
-#define TYPE_NIL '0'
-#define TYPE_TRUE 'T'
-#define TYPE_FALSE 'F'
-#define TYPE_FIXNUM 'i'
-
-#define TYPE_UCLASS 'C'
-#define TYPE_OBJECT 'o'
-#define TYPE_USERDEF 'u'
-#define TYPE_FLOAT 'f'
-#define TYPE_BIGNUM 'l'
-#define TYPE_STRING '"'
-#define TYPE_REGEXP '/'
-#define TYPE_ARRAY '['
-#define TYPE_HASH '{'
-#define TYPE_STRUCT 'S'
-#define TYPE_MODULE 'M'
-
-#define TYPE_SYMBOL ':'
-#define TYPE_SYMLINK ';'
-
-#define TYPE_LINK '@'
-
-extern VALUE cString;
-extern VALUE cRegexp;
-extern VALUE cArray;
-extern VALUE cHash;
-
-VALUE rb_path2class();
-
-static ID s_dump, s_load;
-
-struct dump_arg {
- VALUE obj;
- FILE *fp;
- VALUE str;
- st_table *symbol;
- st_table *data;
-};
-
-struct dump_call_arg {
- VALUE obj;
- struct dump_arg *arg;
- int limit;
-};
-
-static void w_long _((long, struct dump_arg*));
-
-static void
-w_byte(c, arg)
- char c;
- struct dump_arg *arg;
-{
- if (arg->fp) putc(c, arg->fp);
- else str_cat(arg->str, (UCHAR*)&c, 1);
-}
-
-static void
-w_bytes(s, n, arg)
- char *s;
- int n;
- struct dump_arg *arg;
-{
- w_long(n, arg);
- if (arg->fp) {
- fwrite(s, 1, n, arg->fp);
- }
- else {
- str_cat(arg->str, s, n);
- }
-}
-
-static void
-w_short(x, arg)
- int x;
- struct dump_arg *arg;
-{
- int i;
-
- for (i=0; i<sizeof(USHORT); i++) {
- w_byte((x >> (i*8)) & 0xff, arg);
- }
-}
-
-static void
-w_long(x, arg)
- long x;
- struct dump_arg *arg;
-{
- char buf[sizeof(long)+1];
- int i, len = 0;
-
- if (x == 0) {
- w_byte(0, 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);
- }
-}
-
-static void
-w_float(d, arg)
- double d;
- struct dump_arg *arg;
-{
- char buf[100];
-
- sprintf(buf, "%.12g", d);
- w_bytes(buf, strlen(buf), arg);
-}
-
-static void
-w_symbol(id, arg)
- ID id;
- struct dump_arg *arg;
-{
- char *sym = rb_id2name(id);
- int num;
-
- if (st_lookup(arg->symbol, id, &num)) {
- w_byte(TYPE_SYMLINK, arg);
- w_long(num, arg);
- }
- else {
- w_byte(TYPE_SYMBOL, arg);
- w_bytes(sym, strlen(sym), arg);
- st_insert(arg->symbol, id, arg->symbol->num_entries);
- }
-}
-
-static void
-w_unique(s, arg)
- char *s;
- struct dump_arg *arg;
-{
- w_symbol(rb_intern(s), arg);
-}
-
-static void w_object _((VALUE,struct dump_arg*,int));
-extern VALUE cIO, cBignum, cStruct;
-
-static int
-hash_each(key, value, arg)
- VALUE key, value;
- struct dump_call_arg *arg;
-{
- w_object(key, arg->arg, arg->limit);
- w_object(value, arg->arg, arg->limit);
- return ST_CONTINUE;
-}
-
-static int
-obj_each(id, value, arg)
- ID id;
- VALUE value;
- struct dump_call_arg *arg;
-{
- w_symbol(id, arg->arg);
- w_object(value, arg->arg, arg->limit);
- return ST_CONTINUE;
-}
-
-static void
-w_uclass(obj, class, arg)
- VALUE obj, class;
- struct dump_arg *arg;
-{
- if (CLASS_OF(obj) != class) {
- w_byte(TYPE_UCLASS, arg);
- w_unique(rb_class2name(CLASS_OF(obj)), arg);
- }
-}
-
-static void
-w_object(obj, arg, limit)
- VALUE obj;
- struct dump_arg *arg;
- int limit;
-{
- int n;
- struct dump_call_arg c_arg;
-
- if (limit == 0) {
- Fail("exceed depth limit");
- }
- limit--;
- c_arg.limit = limit;
- c_arg.arg = arg;
-
- if (obj == Qnil) {
- w_byte(TYPE_NIL, arg);
- }
- else if (obj == TRUE) {
- w_byte(TYPE_TRUE, arg);
- }
- else if (obj == FALSE) {
- 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(obj, 32) == 0 || RSHIFT(obj, 32) == -1) {
- w_byte(TYPE_FIXNUM, arg);
- w_long(FIX2INT(obj), arg);
- }
- else {
- obj = int2big(FIX2INT(obj));
- goto write_bignum;
- }
-#endif
- }
- else {
- int num;
-
- if (st_lookup(arg->data, obj, &num)) {
- w_byte(TYPE_LINK, arg);
- w_long(num, arg);
- return;
- }
- st_insert(arg->data, obj, arg->data->num_entries);
- if (rb_respond_to(obj, s_dump)) {
- VALUE v;
-
- w_byte(TYPE_USERDEF, arg);
- w_unique(rb_class2name(CLASS_OF(obj)), arg);
- v = rb_funcall(obj, s_dump, 1, limit);
- if (TYPE(v) != T_STRING) {
- TypeError("_dump_to must return String");
- }
- w_bytes(RSTRING(v)->ptr, RSTRING(v)->len, arg);
- return;
- }
-
- switch (BUILTIN_TYPE(obj)) {
- case T_MODULE:
- case T_CLASS:
- w_byte(TYPE_MODULE, arg);
- {
- VALUE path = rb_class_path(obj);
- w_bytes(RSTRING(path)->ptr, RSTRING(path)->len, arg);
- }
- return;
-
- case T_FLOAT:
- w_byte(TYPE_FLOAT, arg);
- w_float(RFLOAT(obj)->value, arg);
- return;
-
- case T_BIGNUM:
- write_bignum:
- w_byte(TYPE_BIGNUM, arg);
- {
- char sign = RBIGNUM(obj)->sign?'+':'-';
- int len = RBIGNUM(obj)->len;
- USHORT *d = RBIGNUM(obj)->digits;
-
- w_byte(sign, arg);
- w_long(len, arg);
- while (len--) {
- w_short(*d, arg);
- d++;
- }
- }
- return;
-
- case T_STRING:
- w_uclass(obj, cString, arg);
- w_byte(TYPE_STRING, arg);
- w_bytes(RSTRING(obj)->ptr, RSTRING(obj)->len, arg);
- return;
-
- case T_REGEXP:
- w_uclass(obj, cRegexp, arg);
- w_byte(TYPE_REGEXP, arg);
- w_bytes(RREGEXP(obj)->str, RREGEXP(obj)->len, arg);
- w_byte(FL_TEST(obj, FL_USER1), arg);
- return;
-
- case T_ARRAY:
- w_uclass(obj, cArray, arg);
- w_byte(TYPE_ARRAY, arg);
- {
- int len = RARRAY(obj)->len;
- VALUE *ptr = RARRAY(obj)->ptr;
-
- w_long(len, arg);
- while (len--) {
- w_object(*ptr, arg, limit);
- ptr++;
- }
- }
- break;
-
- case T_HASH:
- w_uclass(obj, cHash, arg);
- w_byte(TYPE_HASH, arg);
- w_long(RHASH(obj)->tbl->num_entries, arg);
- st_foreach(RHASH(obj)->tbl, hash_each, &c_arg);
- break;
-
- case T_STRUCT:
- w_byte(TYPE_STRUCT, arg);
- {
- int len = RSTRUCT(obj)->len;
- char *path = rb_class2name(CLASS_OF(obj));
- VALUE mem;
- int i;
-
- w_unique(path, arg);
- w_long(len, arg);
- mem = rb_ivar_get(CLASS_OF(obj), rb_intern("__member__"));
- if (mem == Qnil) {
- Fatal("non-initialized struct");
- }
- for (i=0; i<len; i++) {
- w_symbol(FIX2INT(RARRAY(mem)->ptr[i]), arg);
- w_object(RSTRUCT(obj)->ptr[i], arg, limit);
- }
- }
- break;
-
- case T_OBJECT:
- w_byte(TYPE_OBJECT, arg);
- {
- VALUE class = CLASS_OF(obj);
- char *path;
-
- if (FL_TEST(class, FL_SINGLETON)) {
- TypeError("singleton can't be dumped");
- }
- path = rb_class2name(class);
- w_unique(path, arg);
- if (ROBJECT(obj)->iv_tbl) {
- w_long(ROBJECT(obj)->iv_tbl->num_entries, arg);
- st_foreach(ROBJECT(obj)->iv_tbl, obj_each, &c_arg);
- }
- else {
- w_long(0, arg);
- }
- }
- break;
-
- default:
- TypeError("can't dump %s", rb_class2name(CLASS_OF(obj)));
- break;
- }
- }
-}
-
-static VALUE
-dump(arg)
- struct dump_call_arg *arg;
-{
- w_object(arg->obj, arg->arg, arg->limit);
-}
-
-static VALUE
-dump_ensure(arg)
- struct dump_arg *arg;
-{
- st_free_table(arg->symbol);
- st_free_table(arg->data);
-}
-
-static VALUE
-marshal_dump(argc, argv)
- int argc;
- VALUE argv;
-{
- VALUE obj, port, a1, a2;
- int limit = -1;
- extern VALUE cIO;
- struct dump_arg arg;
- struct dump_call_arg c_arg;
-
- port = 0;
- rb_scan_args(argc, argv, "12", &obj, &a1, &a2);
- if (argc == 3) {
- limit = NUM2INT(a2);
- port = a1;
- }
- else if (argc == 2) {
- if (FIXNUM_P(a1)) limit = FIX2INT(a1);
- else port = a1;
- }
- if (port) {
- if (obj_is_kind_of(port, cIO)) {
- OpenFile *fptr;
-
- io_binmode(port);
- GetOpenFile(port, fptr);
- io_writable(fptr);
- arg.fp = (fptr->f2) ? fptr->f2 : fptr->f;
- }
- else {
- TypeError("instance of IO needed");
- }
- }
- else {
- arg.fp = 0;
- port = str_new(0, 0);
- arg.str = port;
- }
-
- arg.symbol = st_init_numtable();
- arg.data = st_init_numtable();
- 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, &c_arg, dump_ensure, &arg);
-
- return port;
-}
-
-struct load_arg {
- FILE *fp;
- UCHAR *ptr, *end;
- st_table *symbol;
- st_table *data;
-};
-
-static int
-r_byte(arg)
- struct load_arg *arg;
-{
- if (arg->fp) return getc(arg->fp);
- if (arg->ptr < arg->end) return *arg->ptr++;
- return EOF;
-}
-
-static USHORT
-r_short(arg)
- struct load_arg *arg;
-{
- USHORT x;
- int i;
-
- x = 0;
- for (i=0; i<sizeof(USHORT); i++) {
- x |= r_byte(arg)<<(i*8);
- }
-
- return x;
-}
-
-static void
-long_toobig(size)
- int size;
-{
- TypeError("long too big for this architecture (size %d, given %d)",
- sizeof(long), size);
-}
-
-static long
-r_long(arg)
- struct load_arg *arg;
-{
- int c = r_byte(arg), i;
- register long x;
-
- if (c == 0) return 0;
- if (c > 0) {
- if (c > sizeof(long)) long_toobig((int)c);
- x = 0;
- for (i=0;i<c;i++) {
- x |= (long)r_byte(arg) << (8*i);
- }
- }
- else if (c < 0) {
- c = -c;
- if (c > sizeof(long)) long_toobig((int)c);
- x = -1;
- for (i=0;i<c;i++) {
- x &= ~(0xff << (8*i));
- x |= (long)r_byte(arg) << (8*i);
- }
- }
- return x;
-}
-
-#define r_bytes(s, arg) \
- (s = (char*)r_long(arg), r_bytes0(&s,ALLOCA_N(char,(long)s),(long)s,arg))
-
-static int
-r_bytes0(sp, s, len, arg)
- char **sp, *s;
- int len;
- struct load_arg *arg;
-{
- if (arg->fp) {
- len = fread(s, 1, len, arg->fp);
- }
- else {
- if (arg->ptr + len > arg->end) {
- len = arg->end - arg->ptr;
- }
- memcpy(s, arg->ptr, len);
- arg->ptr += len;
- }
-
- (s)[len] = '\0';
- *sp = s;
-
- return len;
-}
-
-static ID
-r_symbol(arg)
- struct load_arg *arg;
-{
- char *buf;
- ID id;
- char type;
-
- if (r_byte(arg) == TYPE_SYMLINK) {
- int num = r_long(arg);
-
- if (st_lookup(arg->symbol, num, &id)) {
- return id;
- }
- TypeError("bad symbol");
- }
- r_bytes(buf, arg);
- id = rb_intern(buf);
- st_insert(arg->symbol, arg->symbol->num_entries, id);
-
- return id;
-}
-
-static char*
-r_unique(arg)
- struct load_arg *arg;
-{
- return rb_id2name(r_symbol(arg));
-}
-
-static VALUE
-r_string(arg)
- struct load_arg *arg;
-{
- char *buf;
- int len = r_bytes(buf, arg);
-
- return str_taint(str_new(buf, len));
-}
-
-static VALUE
-r_regist(v, arg)
- VALUE v;
- struct load_arg *arg;
-{
- st_insert(arg->data, arg->data->num_entries, v);
- return v;
-}
-
-static VALUE
-r_object(arg)
- struct load_arg *arg;
-{
- VALUE v;
- int type = r_byte(arg);
-
- switch (type) {
- case EOF:
- eof_error();
- return Qnil;
-
- case TYPE_LINK:
- if (st_lookup(arg->data, r_long(arg), &v)) {
- return v;
- }
- ArgError("dump format error (unlinked)");
- break;
-
- case TYPE_UCLASS:
- {
- VALUE c = rb_path2class(r_unique(arg));
- v = r_object(arg);
- if (rb_special_const_p(v)) {
- ArgError("dump format error (user class)");
- }
- RBASIC(v)->class = c;
- return v;
- }
-
- case TYPE_NIL:
- return Qnil;
-
- case TYPE_TRUE:
- return TRUE;
-
- case TYPE_FALSE:
- return FALSE;
-
- case TYPE_FIXNUM:
- {
- int i = r_long(arg);
- return INT2FIX(i);
- }
-
- case TYPE_FLOAT:
- {
-#ifndef atof
- double atof();
-#endif
- char *buf;
-
- r_bytes(buf, arg);
- v = float_new(atof(buf));
- return r_regist(v, arg);
- }
-
- case TYPE_BIGNUM:
- {
- int len;
- USHORT *digits;
-
- NEWOBJ(big, struct RBignum);
- OBJSETUP(big, cBignum, T_BIGNUM);
- big->sign = (r_byte(arg) == '+');
- big->len = len = r_long(arg);
- big->digits = digits = ALLOC_N(USHORT, len);
- while (len--) {
- *digits++ = r_short(arg);
- }
- big = RBIGNUM(big_norm((VALUE)big));
- if (TYPE(big) == T_BIGNUM) {
- r_regist(big, arg);
- }
- return (VALUE)big;
- }
-
- case TYPE_STRING:
- return r_regist(r_string(arg), arg);
-
- case TYPE_REGEXP:
- {
- char *buf;
- int len = r_bytes(buf, arg);
- int ci = r_byte(arg);
- return r_regist(reg_new(buf, len, ci), arg);
- }
-
- case TYPE_ARRAY:
- {
- volatile int len = r_long(arg);
- v = ary_new2(len);
- r_regist(v, arg);
- while (len--) {
- ary_push(v, r_object(arg));
- }
- return v;
- }
-
- case TYPE_HASH:
- {
- int len = r_long(arg);
-
- v = hash_new();
- r_regist(v, arg);
- while (len--) {
- VALUE key = r_object(arg);
- VALUE value = r_object(arg);
- hash_aset(v, key, value);
- }
- return v;
- }
-
- case TYPE_STRUCT:
- {
- VALUE class, mem, values;
- int i, len;
- int num = arg->data->num_entries;
-
- class = rb_path2class(r_unique(arg));
- mem = rb_ivar_get(class, rb_intern("__member__"));
- if (mem == Qnil) {
- Fatal("non-initialized struct");
- }
- len = r_long(arg);
-
- values = ary_new2(len);
- for (i=0; i<len; i++) {
- ary_push(values, Qnil);
- }
- v = struct_alloc(class, values);
- r_regist(v, arg);
- for (i=0; i<len; i++) {
- ID slot = r_symbol(arg);
- if (RARRAY(mem)->ptr[i] != INT2FIX(slot))
- TypeError("struct not compatible");
- struct_aset(v, INT2FIX(i), r_object(arg));
- }
- return v;
- }
- break;
-
- case TYPE_USERDEF:
- {
- VALUE class;
- int len;
-
- class = rb_path2class(r_unique(arg));
- if (rb_respond_to(class, s_load)) {
- v = rb_funcall(class, s_load, 1, r_string(arg));
- return r_regist(v, arg);
- }
- TypeError("class %s needs to have method `_load_from'",
- rb_class2name(class));
- }
- break;
-
- case TYPE_OBJECT:
- {
- VALUE class;
- int len;
-
- class = rb_path2class(r_unique(arg));
- len = r_long(arg);
- v = obj_alloc(class);
- r_regist(v, arg);
- if (len > 0) {
- while (len--) {
- ID id = r_symbol(arg);
- VALUE val = r_object(arg);
- rb_ivar_set(v, id, val);
- }
- }
- return v;
- }
- break;
-
- case TYPE_MODULE:
- {
- char *buf;
- r_bytes(buf, arg);
- return rb_path2class(buf);
- }
-
- default:
- ArgError("dump format error(0x%x)", type);
- break;
- }
-}
-
-static VALUE
-load(arg)
- struct load_arg *arg;
-{
- return r_object(arg);
-}
-
-static VALUE
-load_ensure(arg)
- struct load_arg *arg;
-{
- st_free_table(arg->symbol);
- st_free_table(arg->data);
-}
-
-static VALUE
-marshal_load(self, port)
- VALUE self, port;
-{
- FILE *fp;
- int major;
- VALUE v;
- OpenFile *fptr;
- struct load_arg arg;
-
- if (TYPE(port) == T_STRING) {
- arg.fp = 0;
- arg.ptr = RSTRING(port)->ptr;
- arg.end = arg.ptr + RSTRING(port)->len;
- }
- else {
- if (obj_is_kind_of(port, cIO)) {
- io_binmode(port);
- GetOpenFile(port, fptr);
- io_readable(fptr);
- arg.fp = fptr->f;
- }
- else {
- TypeError("instance of IO needed");
- }
- }
-
- major = r_byte(&arg);
- if (major == MARSHAL_MAJOR) {
- if (r_byte(&arg) != MARSHAL_MINOR) {
- Warning("Old marshal file format (can be read)");
- }
- arg.symbol = st_init_numtable();
- arg.data = st_init_numtable();
- v = rb_ensure(load, &arg, load_ensure, &arg);
- }
- else {
- TypeError("Old marshal file format (can't read)");
- }
-
- return v;
-}
-
-Init_marshal()
-{
- VALUE mMarshal = rb_define_module("Marshal");
-
- s_dump = rb_intern("_dump_to");
- s_load = rb_intern("_load_from");
- rb_define_module_function(mMarshal, "dump", marshal_dump, -1);
- rb_define_module_function(mMarshal, "load", marshal_load, 1);
- rb_define_module_function(mMarshal, "restore", marshal_load, 1);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 13:37:48 +0000