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ruby--ruby/variable.c

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/**********************************************************************
variable.c -
$Author$
created at: Tue Apr 19 23:55:15 JST 1994
* encoding.c: provide basic features for M17N. * parse.y: encoding aware parsing. * parse.y (pragma_encoding): encoding specification pragma. * parse.y (rb_intern3): encoding specified symbols. * string.c (rb_str_length): length based on characters. for older behavior, bytesize method added. * string.c (rb_str_index_m): index based on characters. rindex as well. * string.c (succ_char): encoding aware succeeding string. * string.c (rb_str_reverse): reverse based on characters. * string.c (rb_str_inspect): encoding aware string description. * string.c (rb_str_upcase_bang): encoding aware case conversion. downcase, capitalize, swapcase as well. * string.c (rb_str_tr_bang): tr based on characters. delete, squeeze, tr_s, count as well. * string.c (rb_str_split_m): split based on characters. * string.c (rb_str_each_line): encoding aware each_line. * string.c (rb_str_each_char): added. iteration based on characters. * string.c (rb_str_strip_bang): encoding aware whitespace stripping. lstrip, rstrip as well. * string.c (rb_str_justify): encoding aware justifying (ljust, rjust, center). * string.c (str_encoding): get encoding attribute from a string. * re.c (rb_reg_initialize): encoding aware regular expression * sprintf.c (rb_str_format): formatting (i.e. length count) based on characters. * io.c (rb_io_getc): getc to return one-character string. for older behavior, getbyte method added. * ext/stringio/stringio.c (strio_getc): ditto. * io.c (rb_io_ungetc): allow pushing arbitrary string at the current reading point. * ext/stringio/stringio.c (strio_ungetc): ditto. * ext/strscan/strscan.c: encoding support. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13261 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2007-08-24 23:29:39 -04:00
Copyright (C) 1993-2007 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#include "ruby/ruby.h"
#include "ruby/st.h"
#include "ruby/util.h"
#include "ruby/encoding.h"
#include "node.h"
#include "constant.h"
#include "internal.h"
#include "id.h"
st_table *rb_global_tbl;
static ID autoload, classpath, tmp_classpath, classid;
void
Init_var_tables(void)
{
rb_global_tbl = st_init_numtable();
CONST_ID(autoload, "__autoload__");
/* __classpath__: fully qualified class path */
CONST_ID(classpath, "__classpath__");
/* __tmp_classpath__: temporary class path which contains anonymous names */
CONST_ID(tmp_classpath, "__tmp_classpath__");
/* __classid__: name given to class/module under an anonymous namespace */
CONST_ID(classid, "__classid__");
}
struct fc_result {
ID name, preferred;
VALUE klass;
VALUE path;
VALUE track;
struct fc_result *prev;
};
static VALUE
fc_path(struct fc_result *fc, ID name)
{
VALUE path, tmp;
path = rb_str_dup(rb_id2str(name));
while (fc) {
st_data_t n;
if (fc->track == rb_cObject) break;
if (RCLASS_IV_TBL(fc->track) &&
st_lookup(RCLASS_IV_TBL(fc->track), (st_data_t)classpath, &n)) {
tmp = rb_str_dup((VALUE)n);
rb_str_cat2(tmp, "::");
rb_str_append(tmp, path);
path = tmp;
break;
}
tmp = rb_str_dup(rb_id2str(fc->name));
rb_str_cat2(tmp, "::");
rb_str_append(tmp, path);
path = tmp;
fc = fc->prev;
}
OBJ_FREEZE(path);
return path;
}
static int
fc_i(st_data_t k, st_data_t v, st_data_t a)
{
ID key = (ID)k;
rb_const_entry_t *ce = (rb_const_entry_t *)v;
struct fc_result *res = (struct fc_result *)a;
VALUE value = ce->value;
if (!rb_is_const_id(key)) return ST_CONTINUE;
if (value == res->klass && (!res->preferred || key == res->preferred)) {
res->path = fc_path(res, key);
return ST_STOP;
}
if (RB_TYPE_P(value, T_MODULE) || RB_TYPE_P(value, T_CLASS)) {
if (!RCLASS_CONST_TBL(value)) return ST_CONTINUE;
else {
struct fc_result arg;
struct fc_result *list;
list = res;
while (list) {
if (list->track == value) return ST_CONTINUE;
list = list->prev;
}
arg.name = key;
arg.preferred = res->preferred;
arg.path = 0;
arg.klass = res->klass;
arg.track = value;
arg.prev = res;
st_foreach(RCLASS_CONST_TBL(value), fc_i, (st_data_t)&arg);
if (arg.path) {
res->path = arg.path;
return ST_STOP;
}
}
}
return ST_CONTINUE;
}
/**
* Traverse constant namespace and find +classpath+ for _klass_. If
* _preferred_ is not 0, choice the path whose base name is set to it.
* If +classpath+ is found, the hidden instance variable __classpath__
* is set to the found path, and __tmp_classpath__ is removed.
* The path is frozen.
*/
static VALUE
find_class_path(VALUE klass, ID preferred)
{
struct fc_result arg;
arg.preferred = preferred;
arg.name = 0;
arg.path = 0;
arg.klass = klass;
arg.track = rb_cObject;
arg.prev = 0;
if (RCLASS_CONST_TBL(rb_cObject)) {
st_foreach_safe(RCLASS_CONST_TBL(rb_cObject), fc_i, (st_data_t)&arg);
}
if (arg.path) {
st_data_t tmp = tmp_classpath;
if (!RCLASS_IV_TBL(klass)) {
RCLASS_IV_TBL(klass) = st_init_numtable();
}
rb_st_insert_id_and_value(klass, RCLASS_IV_TBL(klass), (st_data_t)classpath, arg.path);
st_delete(RCLASS_IV_TBL(klass), &tmp, 0);
return arg.path;
}
return Qnil;
}
/**
* Returns +classpath+ of _klass_, if it is named, or +nil+ for
* anonymous +class+/+module+. The last part of named +classpath+ is
* never anonymous, but anonymous +class+/+module+ names may be
* contained. If the path is "permanent", that means it has no
* anonymous names, <code>*permanent</code> is set to 1.
*/
static VALUE
classname(VALUE klass, int *permanent)
{
VALUE path = Qnil;
st_data_t n;
if (!klass) klass = rb_cObject;
*permanent = 1;
if (RCLASS_IV_TBL(klass)) {
if (!st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classpath, &n)) {
ID cid = 0;
if (st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classid, &n)) {
cid = SYM2ID(n);
path = find_class_path(klass, cid);
}
if (NIL_P(path)) {
path = find_class_path(klass, (ID)0);
}
if (NIL_P(path)) {
if (!cid) {
return Qnil;
}
if (!st_lookup(RCLASS_IV_TBL(klass), (st_data_t)tmp_classpath, &n)) {
path = rb_str_dup(rb_id2str(cid));
OBJ_FREEZE(path);
return path;
}
*permanent = 0;
path = (VALUE)n;
return path;
}
}
else {
path = (VALUE)n;
}
if (!RB_TYPE_P(path, T_STRING)) {
rb_bug("class path is not set properly");
}
return path;
}
return find_class_path(klass, (ID)0);
}
/*
* call-seq:
* mod.name -> string
*
* Returns the name of the module <i>mod</i>. Returns nil for anonymous modules.
*/
VALUE
rb_mod_name(VALUE mod)
{
int permanent;
VALUE path = classname(mod, &permanent);
if (!NIL_P(path)) return rb_str_dup(path);
return path;
}
typedef VALUE (*path_cache_func)(VALUE obj, ID id, VALUE val);
static VALUE
rb_tmp_class_path(VALUE klass, int *permanent, path_cache_func cache_path)
{
VALUE path = classname(klass, permanent);
st_data_t n = (st_data_t)path;
if (!NIL_P(path)) {
return path;
}
if (RCLASS_IV_TBL(klass) && st_lookup(RCLASS_IV_TBL(klass),
(st_data_t)tmp_classpath, &n)) {
*permanent = 0;
return (VALUE)n;
}
else {
* sprintf.c (rb_str_format): allow %c to print one character string (e.g. ?x). * lib/tempfile.rb (Tempfile::make_tmpname): put dot between basename and pid. [ruby-talk:196272] * parse.y (do_block): remove -> style block. * parse.y (parser_yylex): remove tLAMBDA_ARG. * eval.c (rb_call0): binding for the return event hook should have consistent scope. [ruby-core:07928] * eval.c (proc_invoke): return behavior should depend whether it is surrounded by a lambda or a mere block. * eval.c (formal_assign): handles post splat arguments. * eval.c (rb_call0): ditto. * st.c (strhash): use FNV-1a hash. * parse.y (parser_yylex): removed experimental ';;' terminator. * eval.c (rb_node_arity): should be aware of post splat arguments. * eval.c (rb_proc_arity): ditto. * parse.y (f_args): syntax rule enhanced to support arguments after the splat. * parse.y (block_param): ditto for block parameters. * parse.y (f_post_arg): mandatory formal arguments after the splat argument. * parse.y (new_args_gen): generate nodes for mandatory formal arguments after the splat argument. * eval.c (rb_eval): dispatch mandatory formal arguments after the splat argument. * parse.y (args): allow more than one splat in the argument list. * parse.y (method_call): allow aref [] to accept all kind of method argument, including assocs, splat, and block argument. * eval.c (SETUP_ARGS0): prepare block argument as well. * lib/mathn.rb (Integer): remove Integer#gcd2. [ruby-core:07931] * eval.c (error_line): print receivers true/false/nil specially. * eval.c (rb_proc_yield): handles parameters in yield semantics. * eval.c (nil_yield): gives LocalJumpError to denote no block error. * io.c (rb_io_getc): now takes one-character string. * string.c (rb_str_hash): use FNV-1a hash from Fowler/Noll/Vo hashing algorithm. * string.c (rb_str_aref): str[0] now returns 1 character string, instead of a fixnum. [Ruby2] * parse.y (parser_yylex): ?c now returns 1 character string, instead of a fixnum. [Ruby2] * string.c (rb_str_aset): no longer support fixnum insertion. * eval.c (umethod_bind): should not update original class. [ruby-dev:28636] * eval.c (ev_const_get): should support constant access from within instance_eval(). [ruby-dev:28327] * time.c (time_timeval): should round for usec floating number. [ruby-core:07896] * time.c (time_add): ditto. * dir.c (sys_warning): should not call a vararg function rb_sys_warning() indirectly. [ruby-core:07886] * numeric.c (flo_divmod): the first element of Float#divmod should be an integer. [ruby-dev:28589] * test/ruby/test_float.rb: add tests for divmod, div, modulo and remainder. * re.c (rb_reg_initialize): should not allow modifying literal regexps. frozen check moved from rb_reg_initialize_m as well. * re.c (rb_reg_initialize): should not modify untainted objects in safe levels higher than 3. * re.c (rb_memcmp): type change from char* to const void*. * dir.c (dir_close): should not close untainted dir stream. * dir.c (GetDIR): add tainted/frozen check for each dir operation. * lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_symbol_arg): typo fixed. a patch from Florian Gross <florg at florg.net>. * eval.c (EXEC_EVENT_HOOK): trace_func may remove itself from event_hooks. no guarantee for arbitrary hook deletion. [ruby-dev:28632] * util.c (ruby_strtod): differ addition to minimize error. [ruby-dev:28619] * util.c (ruby_strtod): should not raise ERANGE when the input string does not have any digits. [ruby-dev:28629] * eval.c (proc_invoke): should restore old ruby_frame->block. thanks to ts <decoux at moulon.inra.fr>. [ruby-core:07833] also fix [ruby-dev:28614] as well. * signal.c (trap): sig should be less then NSIG. Coverity found this bug. a patch from Kevin Tew <tewk at tewk.com>. [ruby-core:07823] * math.c (math_log2): add new method inspired by [ruby-talk:191237]. * math.c (math_log): add optional base argument to Math::log(). [ruby-talk:191308] * ext/syck/emitter.c (syck_scan_scalar): avoid accessing uninitialized array element. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07809] * array.c (rb_ary_fill): initialize local variables first. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07810] * ext/syck/yaml2byte.c (syck_yaml2byte_handler): need to free type_tag. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07808] * ext/socket/socket.c (make_hostent_internal): accept ai_family check from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07691] * util.c (ruby_strtod): should not cut off 18 digits for no reason. [ruby-core:07796] * array.c (rb_ary_fill): internalize local variable "beg" to pacify Coverity. [ruby-core:07770] * pack.c (pack_unpack): now supports CRLF newlines. a patch from <tommy at tmtm.org>. [ruby-dev:28601] * applied code clean-up patch from Stefan Huehner <stefan at huehner.org>. [ruby-core:07764] * lib/jcode.rb (String::tr_s): should have translated non squeezing character sequence (i.e. a character) as well. thanks to Hiroshi Ichikawa <gimite at gimite.ddo.jp> [ruby-list:42090] * ext/socket/socket.c: document update patch from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07701] * lib/mathn.rb (Integer): need not to remove gcd2. a patch from NARUSE, Yui <naruse at airemix.com>. [ruby-dev:28570] * parse.y (arg): too much NEW_LIST() * eval.c (SETUP_ARGS0): remove unnecessary access to nd_alen. * eval.c (rb_eval): use ARGSCAT for NODE_OP_ASGN1. [ruby-dev:28585] * parse.y (arg): use NODE_ARGSCAT for placeholder. * lib/getoptlong.rb (GetoptLong::get): RDoc update patch from mathew <meta at pobox.com>. [ruby-core:07738] * variable.c (rb_const_set): raise error when no target klass is supplied. [ruby-dev:28582] * prec.c (prec_prec_f): documentation patch from <gerardo.santana at gmail.com>. [ruby-core:07689] * bignum.c (rb_big_pow): second operand may be too big even if it's a Fixnum. [ruby-talk:187984] * README.EXT: update symbol description. [ruby-talk:188104] * COPYING: explicitly note GPLv2. [ruby-talk:187922] * parse.y: remove some obsolete syntax rules (unparenthesized method calls in argument list). * eval.c (rb_call0): insecure calling should be checked for non NODE_SCOPE method invocations too. * eval.c (rb_alias): should preserve the current safe level as well as method definition. * process.c (rb_f_sleep): remove RDoc description about SIGALRM which is not valid on the current implementation. [ruby-dev:28464] Thu Mar 23 21:40:47 2006 K.Kosako <sndgk393 AT ybb.ne.jp> * eval.c (method_missing): should support argument splat in super. a bug in combination of super, splat and method_missing. [ruby-talk:185438] * configure.in: Solaris SunPro compiler -rapth patch from <kuwa at labs.fujitsu.com>. [ruby-dev:28443] * configure.in: remove enable_rpath=no for Solaris. [ruby-dev:28440] * ext/win32ole/win32ole.c (ole_val2olevariantdata): change behavior of converting OLE Variant object with VT_ARRAY|VT_UI1 and Ruby String object. * ruby.1: a clarification patch from David Lutterkort <dlutter at redhat.com>. [ruby-core:7508] * lib/rdoc/ri/ri_paths.rb (RI::Paths): adding paths from rubygems directories. a patch from Eric Hodel <drbrain at segment7.net>. [ruby-core:07423] * eval.c (rb_clear_cache_by_class): clearing wrong cache. * ext/extmk.rb: use :remove_destination to install extension libraries to avoid SEGV. [ruby-dev:28417] * eval.c (rb_thread_fd_writable): should not re-schedule output from KILLED thread (must be error printing). * array.c (rb_ary_flatten_bang): allow specifying recursion level. [ruby-talk:182170] * array.c (rb_ary_flatten): ditto. * gc.c (add_heap): a heap_slots may overflow. a patch from Stefan Weil <weil at mail.berlios.de>. * eval.c (rb_call): use separate cache for fcall/vcall invocation. * eval.c (rb_eval): NODE_FCALL, NODE_VCALL can call local functions. * eval.c (rb_mod_local): a new method to specify newly added visibility "local". * eval.c (search_method): search for local methods which are visible only from the current class. * class.c (rb_class_local_methods): a method to list local methods. * object.c (Init_Object): add BasicObject class as a top level BlankSlate class. * ruby.h (SYM2ID): should not cast to signed long. [ruby-core:07414] * class.c (rb_include_module): allow module duplication. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2006-06-09 17:20:17 -04:00
const char *s = "Class";
if (RB_TYPE_P(klass, T_MODULE)) {
if (rb_obj_class(klass) == rb_cModule) {
s = "Module";
}
else {
int perm;
VALUE path;
path = rb_tmp_class_path(RBASIC(klass)->klass, &perm, cache_path);
s = RSTRING_PTR(path);
}
}
path = rb_sprintf("#<%s:%p>", s, (void*)klass);
OBJ_FREEZE(path);
cache_path(klass, tmp_classpath, path);
*permanent = 0;
return path;
}
}
VALUE
rb_class_path(VALUE klass)
{
int permanent;
VALUE path = rb_tmp_class_path(klass, &permanent, rb_ivar_set);
if (!NIL_P(path)) path = rb_str_dup(path);
return path;
}
static VALUE
null_cache(VALUE obj, ID id, VALUE val)
{
return Qnil;
}
VALUE
rb_class_path_no_cache(VALUE klass)
{
int permanent;
VALUE path = rb_tmp_class_path(klass, &permanent, null_cache);
if (!NIL_P(path)) path = rb_str_dup(path);
return path;
}
void
rb_set_class_path_string(VALUE klass, VALUE under, VALUE name)
{
VALUE str;
ID pathid = classpath;
if (under == rb_cObject) {
str = rb_str_new_frozen(name);
}
else {
int permanent;
str = rb_str_dup(rb_tmp_class_path(under, &permanent, rb_ivar_set));
rb_str_cat2(str, "::");
rb_str_append(str, name);
OBJ_FREEZE(str);
if (!permanent) {
pathid = tmp_classpath;
rb_ivar_set(klass, classid, ID2SYM(rb_intern_str(name)));
}
}
rb_ivar_set(klass, pathid, str);
}
void
rb_set_class_path(VALUE klass, VALUE under, const char *name)
{
VALUE str;
ID pathid = classpath;
if (under == rb_cObject) {
str = rb_str_new2(name);
}
else {
int permanent;
str = rb_str_dup(rb_tmp_class_path(under, &permanent, rb_ivar_set));
rb_str_cat2(str, "::");
rb_str_cat2(str, name);
if (!permanent) {
pathid = tmp_classpath;
rb_ivar_set(klass, classid, ID2SYM(rb_intern(name)));
}
}
OBJ_FREEZE(str);
rb_ivar_set(klass, pathid, str);
}
VALUE
rb_path_to_class(VALUE pathname)
{
rb_encoding *enc = rb_enc_get(pathname);
const char *pbeg, *p, *path = RSTRING_PTR(pathname);
ID id;
VALUE c = rb_cObject;
if (!rb_enc_asciicompat(enc)) {
rb_raise(rb_eArgError, "invalid class path encoding (non ASCII)");
}
pbeg = p = path;
if (path[0] == '#') {
rb_raise(rb_eArgError, "can't retrieve anonymous class %"PRIsVALUE,
QUOTE(pathname));
}
while (*p) {
while (*p && *p != ':') p++;
id = rb_check_id_cstr(pbeg, p-pbeg, enc);
if (p[0] == ':') {
if (p[1] != ':') goto undefined_class;
p += 2;
pbeg = p;
}
if (!id || !rb_const_defined_at(c, id)) {
undefined_class:
rb_raise(rb_eArgError, "undefined class/module %.*"PRIsVALUE,
(int)(p-path), pathname);
}
c = rb_const_get_at(c, id);
if (!RB_TYPE_P(c, T_MODULE) && !RB_TYPE_P(c, T_CLASS)) {
rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",
pathname);
}
}
RB_GC_GUARD(pathname);
return c;
}
VALUE
rb_path2class(const char *path)
{
return rb_path_to_class(rb_str_new_cstr(path));
}
void
rb_name_class(VALUE klass, ID id)
{
rb_ivar_set(klass, classid, ID2SYM(id));
}
VALUE
rb_class_name(VALUE klass)
{
return rb_class_path(rb_class_real(klass));
}
const char *
rb_class2name(VALUE klass)
{
int permanent;
VALUE path = rb_tmp_class_path(rb_class_real(klass), &permanent, rb_ivar_set);
if (NIL_P(path)) return NULL;
return RSTRING_PTR(path);
}
const char *
rb_obj_classname(VALUE obj)
{
return rb_class2name(CLASS_OF(obj));
}
#define global_variable rb_global_variable
#define global_entry rb_global_entry
#define gvar_getter_t rb_gvar_getter_t
#define gvar_setter_t rb_gvar_setter_t
#define gvar_marker_t rb_gvar_marker_t
struct trace_var {
int removed;
void (*func)(VALUE arg, VALUE val);
VALUE data;
struct trace_var *next;
};
struct global_variable {
int counter;
void *data;
gvar_getter_t *getter;
gvar_setter_t *setter;
gvar_marker_t *marker;
int block_trace;
struct trace_var *trace;
};
#define undef_getter rb_gvar_undef_getter
#define undef_setter rb_gvar_undef_setter
#define undef_marker rb_gvar_undef_marker
#define val_getter rb_gvar_val_getter
#define val_setter rb_gvar_val_setter
#define val_marker rb_gvar_val_marker
#define var_getter rb_gvar_var_getter
#define var_setter rb_gvar_var_setter
#define var_marker rb_gvar_var_marker
#define readonly_setter rb_gvar_readonly_setter
struct global_entry*
rb_global_entry(ID id)
{
struct global_entry *entry;
st_data_t data;
if (!st_lookup(rb_global_tbl, (st_data_t)id, &data)) {
struct global_variable *var;
entry = ALLOC(struct global_entry);
var = ALLOC(struct global_variable);
entry->id = id;
entry->var = var;
var->counter = 1;
var->data = 0;
var->getter = undef_getter;
var->setter = undef_setter;
var->marker = undef_marker;
var->block_trace = 0;
var->trace = 0;
st_add_direct(rb_global_tbl, id, (st_data_t)entry);
}
else {
entry = (struct global_entry *)data;
}
return entry;
}
VALUE
undef_getter(ID id, void *data, struct global_variable *var)
{
rb_warning("global variable `%"PRIsVALUE"' not initialized", QUOTE_ID(id));
return Qnil;
}
void
undef_setter(VALUE val, ID id, void *data, struct global_variable *var)
{
var->getter = val_getter;
var->setter = val_setter;
var->marker = val_marker;
var->data = (void*)val;
}
void
undef_marker(VALUE *var)
{
}
VALUE
val_getter(ID id, void *data, struct global_variable *var)
{
return (VALUE)data;
}
void
val_setter(VALUE val, ID id, void *data, struct global_variable *var)
{
var->data = (void*)val;
}
void
val_marker(VALUE *var)
{
VALUE data = (VALUE)var;
if (data) rb_gc_mark_maybe(data);
}
VALUE
var_getter(ID id, void *data, struct global_variable *gvar)
{
VALUE *var = data;
if (!var) return Qnil;
return *var;
}
void
var_setter(VALUE val, ID id, void *data, struct global_variable *gvar)
{
*(VALUE *)data = val;
}
void
var_marker(VALUE *var)
{
if (var) rb_gc_mark_maybe(*var);
}
void
readonly_setter(VALUE val, ID id, void *data, struct global_variable *gvar)
{
rb_name_error(id, "%"PRIsVALUE" is a read-only variable", QUOTE_ID(id));
}
static int
mark_global_entry(st_data_t k, st_data_t v, st_data_t a)
{
struct global_entry *entry = (struct global_entry *)v;
struct trace_var *trace;
struct global_variable *var = entry->var;
(*var->marker)(var->data);
trace = var->trace;
while (trace) {
if (trace->data) rb_gc_mark_maybe(trace->data);
trace = trace->next;
}
return ST_CONTINUE;
}
void
rb_gc_mark_global_tbl(void)
{
* eval_load.c (Init_load): delay allocating an array for rb_load_path to avoid GC problem in very early stage. (RUBY_GC_STRESS causes GC in such stage.) * variable.c (rb_gc_mark_global_tbl): rb_global_tbl may be 0 in very early stage. * thread.c (thread_cleanup_func) [IA64]: clear register stack position. (thread_start_func_2) [IA64]: record the beginning of register stack using extra argument. (rb_gc_save_machine_context) [IA64]: record the end of register stack. * gc.c [IA64] (SET_STACK_END): record the end of register stack. (garbage_collect) [IA64]: use recorded register stack area for GC marking. (yarv_machine_stack_mark) [IA64]: GC mark from the register stack area. * yarvcore.c [IA64] (rb_gc_register_stack_start): defined. (Init_VM): store th->self on stack to fix GC problem. (Init_yarv) [IA64]: initialize the beginning of register stack. * yarvcore.h (struct rb_thread_struct) [IA64]: new members for register stack area. * thread_pthread.ci (thread_start_func_1) [IA64]: call thread_start_func_2 with the end of register stack. * cont.c (struct rb_context_struct) [IA64]: new members for register stack area. (cont_mark) [IA64]: GC mark from register stack area. (cont_free) [IA64]: free saved register stack. (cont_save_machine_stack) [IA64]: record the position and contents of the register stack. (cont_capture): store cont->self on stack to fix GC problem. (cont_restore_1) [IA64]: restore the register stack. [IA64] (register_stack_extend): new function. (cont_restore_0) [IA64]: call register_stack_extend instead of cont_restore_1. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12537 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2007-06-14 04:35:20 -04:00
if (rb_global_tbl)
st_foreach_safe(rb_global_tbl, mark_global_entry, 0);
}
static ID
global_id(const char *name)
{
ID id;
if (name[0] == '$') id = rb_intern(name);
else {
size_t len = strlen(name);
char *buf = ALLOCA_N(char, len+1);
buf[0] = '$';
memcpy(buf+1, name, len);
id = rb_intern2(buf, len+1);
}
return id;
}
void
rb_define_hooked_variable(
const char *name,
VALUE *var,
VALUE (*getter)(ANYARGS),
void (*setter)(ANYARGS))
{
volatile VALUE tmp = var ? *var : Qnil;
ID id = global_id(name);
struct global_variable *gvar = rb_global_entry(id)->var;
gvar->data = (void*)var;
gvar->getter = getter?(gvar_getter_t *)getter:var_getter;
gvar->setter = setter?(gvar_setter_t *)setter:var_setter;
gvar->marker = var_marker;
RB_GC_GUARD(tmp);
}
void
rb_define_variable(const char *name, VALUE *var)
{
rb_define_hooked_variable(name, var, 0, 0);
}
void
rb_define_readonly_variable(const char *name, VALUE *var)
{
rb_define_hooked_variable(name, var, 0, readonly_setter);
}
void
rb_define_virtual_variable(
const char *name,
VALUE (*getter)(ANYARGS),
void (*setter)(ANYARGS))
{
if (!getter) getter = val_getter;
if (!setter) setter = readonly_setter;
rb_define_hooked_variable(name, 0, getter, setter);
}
static void
rb_trace_eval(VALUE cmd, VALUE val)
{
rb_eval_cmd(cmd, rb_ary_new3(1, val), 0);
}
/*
* call-seq:
* trace_var(symbol, cmd ) -> nil
* trace_var(symbol) {|val| block } -> nil
*
* Controls tracing of assignments to global variables. The parameter
* +symbol_ identifies the variable (as either a string name or a
* symbol identifier). _cmd_ (which may be a string or a
* +Proc+ object) or block is executed whenever the variable
* is assigned. The block or +Proc+ object receives the
* variable's new value as a parameter. Also see
* <code>Kernel::untrace_var</code>.
*
* trace_var :$_, proc {|v| puts "$_ is now '#{v}'" }
* $_ = "hello"
* $_ = ' there'
*
* <em>produces:</em>
*
* $_ is now 'hello'
* $_ is now ' there'
*/
VALUE
rb_f_trace_var(int argc, VALUE *argv)
{
VALUE var, cmd;
struct global_entry *entry;
struct trace_var *trace;
if (rb_scan_args(argc, argv, "11", &var, &cmd) == 1) {
cmd = rb_block_proc();
}
if (NIL_P(cmd)) {
return rb_f_untrace_var(argc, argv);
}
entry = rb_global_entry(rb_to_id(var));
if (OBJ_TAINTED(cmd)) {
rb_raise(rb_eSecurityError, "Insecure: tainted variable trace");
}
trace = ALLOC(struct trace_var);
trace->next = entry->var->trace;
trace->func = rb_trace_eval;
trace->data = cmd;
trace->removed = 0;
entry->var->trace = trace;
return Qnil;
}
static void
remove_trace(struct global_variable *var)
{
struct trace_var *trace = var->trace;
struct trace_var t;
struct trace_var *next;
t.next = trace;
trace = &t;
while (trace->next) {
next = trace->next;
if (next->removed) {
trace->next = next->next;
xfree(next);
}
else {
trace = next;
}
}
var->trace = t.next;
}
/*
* call-seq:
* untrace_var(symbol [, cmd] ) -> array or nil
*
* Removes tracing for the specified command on the given global
* variable and returns +nil+. If no command is specified,
* removes all tracing for that variable and returns an array
* containing the commands actually removed.
*/
VALUE
rb_f_untrace_var(int argc, VALUE *argv)
{
VALUE var, cmd;
ID id;
struct global_entry *entry;
struct trace_var *trace;
st_data_t data;
rb_scan_args(argc, argv, "11", &var, &cmd);
id = rb_check_id(&var);
if (!id) {
rb_name_error_str(var, "undefined global variable %"PRIsVALUE"", QUOTE(var));
}
if (!st_lookup(rb_global_tbl, (st_data_t)id, &data)) {
rb_name_error(id, "undefined global variable %"PRIsVALUE"", QUOTE_ID(id));
}
trace = (entry = (struct global_entry *)data)->var->trace;
if (NIL_P(cmd)) {
VALUE ary = rb_ary_new();
while (trace) {
struct trace_var *next = trace->next;
rb_ary_push(ary, (VALUE)trace->data);
trace->removed = 1;
trace = next;
}
if (!entry->var->block_trace) remove_trace(entry->var);
return ary;
}
else {
while (trace) {
if (trace->data == cmd) {
trace->removed = 1;
if (!entry->var->block_trace) remove_trace(entry->var);
return rb_ary_new3(1, cmd);
}
trace = trace->next;
}
}
return Qnil;
}
VALUE
rb_gvar_get(struct global_entry *entry)
{
struct global_variable *var = entry->var;
return (*var->getter)(entry->id, var->data, var);
}
struct trace_data {
struct trace_var *trace;
VALUE val;
};
static VALUE
trace_ev(struct trace_data *data)
{
struct trace_var *trace = data->trace;
while (trace) {
(*trace->func)(trace->data, data->val);
trace = trace->next;
}
2012-04-13 20:36:26 -04:00
return Qnil;
}
static VALUE
trace_en(struct global_variable *var)
{
var->block_trace = 0;
remove_trace(var);
return Qnil; /* not reached */
}
VALUE
rb_gvar_set(struct global_entry *entry, VALUE val)
{
struct trace_data trace;
struct global_variable *var = entry->var;
(*var->setter)(val, entry->id, var->data, var);
if (var->trace && !var->block_trace) {
var->block_trace = 1;
trace.trace = var->trace;
trace.val = val;
rb_ensure(trace_ev, (VALUE)&trace, trace_en, (VALUE)var);
}
return val;
}
VALUE
rb_gv_set(const char *name, VALUE val)
{
struct global_entry *entry;
entry = rb_global_entry(global_id(name));
return rb_gvar_set(entry, val);
}
VALUE
rb_gv_get(const char *name)
{
struct global_entry *entry;
entry = rb_global_entry(global_id(name));
return rb_gvar_get(entry);
}
VALUE
rb_gvar_defined(struct global_entry *entry)
{
if (entry->var->getter == undef_getter) return Qfalse;
return Qtrue;
}
static int
gvar_i(st_data_t k, st_data_t v, st_data_t a)
{
ID key = (ID)k;
VALUE ary = (VALUE)a;
rb_ary_push(ary, ID2SYM(key));
return ST_CONTINUE;
}
/*
* call-seq:
* global_variables -> array
*
* Returns an array of the names of global variables.
*
* global_variables.grep /std/ #=> [:$stdin, :$stdout, :$stderr]
*/
VALUE
rb_f_global_variables(void)
{
VALUE ary = rb_ary_new();
char buf[2];
int i;
st_foreach_safe(rb_global_tbl, gvar_i, ary);
buf[0] = '$';
for (i = 1; i <= 9; ++i) {
buf[1] = (char)(i + '0');
rb_ary_push(ary, ID2SYM(rb_intern2(buf, 2)));
}
return ary;
}
void
rb_alias_variable(ID name1, ID name2)
{
struct global_entry *entry1, *entry2;
st_data_t data1;
entry2 = rb_global_entry(name2);
if (!st_lookup(rb_global_tbl, (st_data_t)name1, &data1)) {
entry1 = ALLOC(struct global_entry);
entry1->id = name1;
st_add_direct(rb_global_tbl, name1, (st_data_t)entry1);
}
else if ((entry1 = (struct global_entry *)data1)->var != entry2->var) {
struct global_variable *var = entry1->var;
if (var->block_trace) {
rb_raise(rb_eRuntimeError, "can't alias in tracer");
}
var->counter--;
if (var->counter == 0) {
struct trace_var *trace = var->trace;
while (trace) {
struct trace_var *next = trace->next;
xfree(trace);
trace = next;
}
xfree(var);
}
}
else {
return;
}
entry2->var->counter++;
entry1->var = entry2->var;
}
static int special_generic_ivar = 0;
static st_table *generic_iv_tbl;
st_table*
rb_generic_ivar_table(VALUE obj)
{
st_data_t tbl;
if (!FL_TEST(obj, FL_EXIVAR)) return 0;
if (!generic_iv_tbl) return 0;
if (!st_lookup(generic_iv_tbl, (st_data_t)obj, &tbl)) return 0;
return (st_table *)tbl;
}
static VALUE
generic_ivar_get(VALUE obj, ID id, VALUE undef)
{
st_data_t tbl, val;
if (generic_iv_tbl) {
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &tbl)) {
if (st_lookup((st_table *)tbl, (st_data_t)id, &val)) {
return (VALUE)val;
}
}
}
return undef;
}
static void
generic_ivar_set(VALUE obj, ID id, VALUE val)
{
st_table *tbl;
st_data_t data;
if (rb_special_const_p(obj)) {
if (rb_obj_frozen_p(obj)) rb_error_frozen("object");
special_generic_ivar = 1;
}
if (!generic_iv_tbl) {
generic_iv_tbl = st_init_numtable();
}
if (!st_lookup(generic_iv_tbl, (st_data_t)obj, &data)) {
FL_SET(obj, FL_EXIVAR);
tbl = st_init_numtable();
st_add_direct(generic_iv_tbl, (st_data_t)obj, (st_data_t)tbl);
st_add_direct(tbl, (st_data_t)id, (st_data_t)val);
* gc.c: support RGENGC. [ruby-trunk - Feature #8339] See this ticet about RGENGC. * gc.c: Add several flags: * RGENGC_DEBUG: if >0, then prints debug information. * RGENGC_CHECK_MODE: if >0, add assertions. * RGENGC_PROFILE: if >0, add profiling features. check GC.stat and GC::Profiler. * include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0). * array.c: add write barriers for T_ARRAY and generate sunny objects. * include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if you want to access raw pointers. If you modify the contents which pointer pointed, then you need to care write barrier. * bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects. * complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX and generate sunny objects. * rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write barriers for T_RATIONAL and generate sunny objects. * internal.h: add write barriers for RBasic::klass. * numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects. * object.c (rb_class_allocate_instance), range.c: generate sunny T_OBJECT objects. * string.c: add write barriers for T_STRING and generate sunny objects. * variable.c: add write barriers for ivars. * vm_insnhelper.c (vm_setivar): ditto. * include/ruby/ruby.h, debug.c: use two flags FL_WB_PROTECTED and FL_OLDGEN. * node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED): move flag bits. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-13 14:07:47 -04:00
if (FL_ABLE(obj)) OBJ_WRITTEN(obj, Qundef, val);
return;
}
st_insert((st_table *)data, (st_data_t)id, (st_data_t)val);
* gc.c: support RGENGC. [ruby-trunk - Feature #8339] See this ticet about RGENGC. * gc.c: Add several flags: * RGENGC_DEBUG: if >0, then prints debug information. * RGENGC_CHECK_MODE: if >0, add assertions. * RGENGC_PROFILE: if >0, add profiling features. check GC.stat and GC::Profiler. * include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0). * array.c: add write barriers for T_ARRAY and generate sunny objects. * include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if you want to access raw pointers. If you modify the contents which pointer pointed, then you need to care write barrier. * bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects. * complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX and generate sunny objects. * rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write barriers for T_RATIONAL and generate sunny objects. * internal.h: add write barriers for RBasic::klass. * numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects. * object.c (rb_class_allocate_instance), range.c: generate sunny T_OBJECT objects. * string.c: add write barriers for T_STRING and generate sunny objects. * variable.c: add write barriers for ivars. * vm_insnhelper.c (vm_setivar): ditto. * include/ruby/ruby.h, debug.c: use two flags FL_WB_PROTECTED and FL_OLDGEN. * node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED): move flag bits. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-13 14:07:47 -04:00
if (FL_ABLE(obj)) OBJ_WRITTEN(obj, data, val);
}
static VALUE
generic_ivar_defined(VALUE obj, ID id)
{
st_table *tbl;
st_data_t data;
if (!generic_iv_tbl) return Qfalse;
if (!st_lookup(generic_iv_tbl, (st_data_t)obj, &data)) return Qfalse;
tbl = (st_table *)data;
if (st_lookup(tbl, (st_data_t)id, &data)) {
return Qtrue;
}
return Qfalse;
}
static int
generic_ivar_remove(VALUE obj, ID id, st_data_t *valp)
{
st_table *tbl;
st_data_t data, key = (st_data_t)id;
int status;
if (!generic_iv_tbl) return 0;
if (!st_lookup(generic_iv_tbl, (st_data_t)obj, &data)) return 0;
tbl = (st_table *)data;
status = st_delete(tbl, &key, valp);
if (tbl->num_entries == 0) {
key = (st_data_t)obj;
st_delete(generic_iv_tbl, &key, &data);
st_free_table((st_table *)data);
}
return status;
}
void
rb_mark_generic_ivar(VALUE obj)
{
st_data_t tbl;
if (!generic_iv_tbl) return;
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &tbl)) {
rb_mark_tbl((st_table *)tbl);
}
}
static int
givar_mark_i(st_data_t k, st_data_t v, st_data_t a)
{
VALUE value = (VALUE)v;
rb_gc_mark(value);
return ST_CONTINUE;
}
static int
givar_i(st_data_t k, st_data_t v, st_data_t a)
{
VALUE obj = (VALUE)k;
st_table *tbl = (st_table *)v;
if (rb_special_const_p(obj)) {
st_foreach_safe(tbl, givar_mark_i, 0);
}
return ST_CONTINUE;
}
void
rb_mark_generic_ivar_tbl(void)
{
if (!generic_iv_tbl) return;
if (special_generic_ivar == 0) return;
st_foreach_safe(generic_iv_tbl, givar_i, 0);
}
void
rb_free_generic_ivar(VALUE obj)
{
st_data_t key = (st_data_t)obj, tbl;
if (!generic_iv_tbl) return;
if (st_delete(generic_iv_tbl, &key, &tbl))
st_free_table((st_table *)tbl);
}
RUBY_FUNC_EXPORTED size_t
rb_generic_ivar_memsize(VALUE obj)
{
st_data_t tbl;
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &tbl))
return st_memsize((st_table *)tbl);
return 0;
}
void
rb_copy_generic_ivar(VALUE clone, VALUE obj)
{
st_data_t data;
if (!generic_iv_tbl) return;
if (!FL_TEST(obj, FL_EXIVAR)) {
clear:
if (FL_TEST(clone, FL_EXIVAR)) {
rb_free_generic_ivar(clone);
FL_UNSET(clone, FL_EXIVAR);
}
return;
}
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &data)) {
st_table *tbl = (st_table *)data;
if (tbl->num_entries == 0)
goto clear;
if (st_lookup(generic_iv_tbl, (st_data_t)clone, &data)) {
st_free_table((st_table *)data);
st_insert(generic_iv_tbl, (st_data_t)clone, (st_data_t)st_copy(tbl));
}
else {
st_add_direct(generic_iv_tbl, (st_data_t)clone, (st_data_t)st_copy(tbl));
FL_SET(clone, FL_EXIVAR);
}
}
}
static VALUE
rb_ivar_lookup(VALUE obj, ID id, VALUE undef)
{
VALUE val, *ptr;
struct st_table *iv_index_tbl;
long len;
st_data_t index;
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
len = ROBJECT_NUMIV(obj);
ptr = ROBJECT_IVPTR(obj);
iv_index_tbl = ROBJECT_IV_INDEX_TBL(obj);
if (!iv_index_tbl) break;
if (!st_lookup(iv_index_tbl, (st_data_t)id, &index)) break;
if (len <= (long)index) break;
val = ptr[index];
if (val != Qundef)
return val;
break;
case T_CLASS:
case T_MODULE:
if (RCLASS_IV_TBL(obj) && st_lookup(RCLASS_IV_TBL(obj), (st_data_t)id, &index))
return (VALUE)index;
break;
default:
generic:
if (FL_TEST(obj, FL_EXIVAR) || rb_special_const_p(obj))
return generic_ivar_get(obj, id, undef);
break;
}
return undef;
}
VALUE
rb_ivar_get(VALUE obj, ID id)
{
VALUE iv = rb_ivar_lookup(obj, id, Qundef);
if (iv == Qundef) {
rb_warning("instance variable %"PRIsVALUE" not initialized", QUOTE_ID(id));
iv = Qnil;
}
return iv;
}
VALUE
rb_attr_get(VALUE obj, ID id)
{
return rb_ivar_lookup(obj, id, Qnil);
}
VALUE
rb_ivar_set(VALUE obj, ID id, VALUE val)
{
struct st_table *iv_index_tbl;
st_data_t index;
long i, len;
int ivar_extended;
rb_check_frozen(obj);
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
iv_index_tbl = ROBJECT_IV_INDEX_TBL(obj);
if (!iv_index_tbl) {
VALUE klass = rb_obj_class(obj);
iv_index_tbl = RCLASS_IV_INDEX_TBL(klass);
if (!iv_index_tbl) {
iv_index_tbl = RCLASS_IV_INDEX_TBL(klass) = st_init_numtable();
}
}
ivar_extended = 0;
if (!st_lookup(iv_index_tbl, (st_data_t)id, &index)) {
index = iv_index_tbl->num_entries;
st_add_direct(iv_index_tbl, (st_data_t)id, index);
ivar_extended = 1;
}
len = ROBJECT_NUMIV(obj);
if (len <= (long)index) {
VALUE *ptr = ROBJECT_IVPTR(obj);
if (index < ROBJECT_EMBED_LEN_MAX) {
RBASIC(obj)->flags |= ROBJECT_EMBED;
ptr = ROBJECT(obj)->as.ary;
for (i = 0; i < ROBJECT_EMBED_LEN_MAX; i++) {
ptr[i] = Qundef;
}
}
else {
VALUE *newptr;
long newsize = (index+1) + (index+1)/4; /* (index+1)*1.25 */
if (!ivar_extended &&
iv_index_tbl->num_entries < (st_index_t)newsize) {
newsize = iv_index_tbl->num_entries;
}
if (RBASIC(obj)->flags & ROBJECT_EMBED) {
newptr = ALLOC_N(VALUE, newsize);
MEMCPY(newptr, ptr, VALUE, len);
RBASIC(obj)->flags &= ~ROBJECT_EMBED;
ROBJECT(obj)->as.heap.ivptr = newptr;
}
else {
REALLOC_N(ROBJECT(obj)->as.heap.ivptr, VALUE, newsize);
newptr = ROBJECT(obj)->as.heap.ivptr;
}
for (; len < newsize; len++)
newptr[len] = Qundef;
ROBJECT(obj)->as.heap.numiv = newsize;
ROBJECT(obj)->as.heap.iv_index_tbl = iv_index_tbl;
}
}
* gc.c: support RGENGC. [ruby-trunk - Feature #8339] See this ticet about RGENGC. * gc.c: Add several flags: * RGENGC_DEBUG: if >0, then prints debug information. * RGENGC_CHECK_MODE: if >0, add assertions. * RGENGC_PROFILE: if >0, add profiling features. check GC.stat and GC::Profiler. * include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0). * array.c: add write barriers for T_ARRAY and generate sunny objects. * include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if you want to access raw pointers. If you modify the contents which pointer pointed, then you need to care write barrier. * bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects. * complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX and generate sunny objects. * rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write barriers for T_RATIONAL and generate sunny objects. * internal.h: add write barriers for RBasic::klass. * numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects. * object.c (rb_class_allocate_instance), range.c: generate sunny T_OBJECT objects. * string.c: add write barriers for T_STRING and generate sunny objects. * variable.c: add write barriers for ivars. * vm_insnhelper.c (vm_setivar): ditto. * include/ruby/ruby.h, debug.c: use two flags FL_WB_PROTECTED and FL_OLDGEN. * node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED): move flag bits. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-13 14:07:47 -04:00
OBJ_WRITE(obj, &ROBJECT_IVPTR(obj)[index], val);
break;
case T_CLASS:
case T_MODULE:
if (!RCLASS_IV_TBL(obj)) RCLASS_IV_TBL(obj) = st_init_numtable();
rb_st_insert_id_and_value(obj, RCLASS_IV_TBL(obj), (st_data_t)id, val);
break;
default:
generic:
generic_ivar_set(obj, id, val);
break;
}
return val;
}
VALUE
rb_ivar_defined(VALUE obj, ID id)
{
VALUE val;
struct st_table *iv_index_tbl;
st_data_t index;
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
iv_index_tbl = ROBJECT_IV_INDEX_TBL(obj);
if (!iv_index_tbl) break;
if (!st_lookup(iv_index_tbl, (st_data_t)id, &index)) break;
if (ROBJECT_NUMIV(obj) <= (long)index) break;
val = ROBJECT_IVPTR(obj)[index];
if (val != Qundef)
return Qtrue;
break;
case T_CLASS:
case T_MODULE:
if (RCLASS_IV_TBL(obj) && st_lookup(RCLASS_IV_TBL(obj), (st_data_t)id, 0))
return Qtrue;
break;
default:
generic:
if (FL_TEST(obj, FL_EXIVAR) || rb_special_const_p(obj))
return generic_ivar_defined(obj, id);
break;
}
return Qfalse;
}
struct obj_ivar_tag {
VALUE obj;
int (*func)(ID key, VALUE val, st_data_t arg);
st_data_t arg;
};
static int
obj_ivar_i(st_data_t key, st_data_t index, st_data_t arg)
{
struct obj_ivar_tag *data = (struct obj_ivar_tag *)arg;
if ((long)index < ROBJECT_NUMIV(data->obj)) {
VALUE val = ROBJECT_IVPTR(data->obj)[(long)index];
if (val != Qundef) {
return (data->func)((ID)key, val, data->arg);
}
}
return ST_CONTINUE;
}
static void
obj_ivar_each(VALUE obj, int (*func)(ANYARGS), st_data_t arg)
{
st_table *tbl;
struct obj_ivar_tag data;
tbl = ROBJECT_IV_INDEX_TBL(obj);
if (!tbl)
return;
data.obj = obj;
data.func = (int (*)(ID key, VALUE val, st_data_t arg))func;
data.arg = arg;
st_foreach_safe(tbl, obj_ivar_i, (st_data_t)&data);
}
void
rb_ivar_foreach(VALUE obj, int (*func)(ANYARGS), st_data_t arg)
{
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
obj_ivar_each(obj, func, arg);
break;
case T_CLASS:
case T_MODULE:
if (RCLASS_IV_TBL(obj)) {
st_foreach_safe(RCLASS_IV_TBL(obj), func, arg);
}
break;
default:
generic:
if (!generic_iv_tbl) break;
if (FL_TEST(obj, FL_EXIVAR) || rb_special_const_p(obj)) {
st_data_t tbl;
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &tbl)) {
st_foreach_safe((st_table *)tbl, func, arg);
}
}
break;
}
}
st_index_t
rb_ivar_count(VALUE obj)
{
st_table *tbl;
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
if ((tbl = ROBJECT_IV_INDEX_TBL(obj)) != 0) {
st_index_t i, count, num = tbl->num_entries;
const VALUE *const ivptr = ROBJECT_IVPTR(obj);
for (i = count = 0; i < num; ++i) {
if (ivptr[i] != Qundef) {
count++;
}
}
return count;
}
break;
case T_CLASS:
case T_MODULE:
if ((tbl = RCLASS_IV_TBL(obj)) != 0) {
return tbl->num_entries;
}
break;
default:
generic:
if (!generic_iv_tbl) break;
if (FL_TEST(obj, FL_EXIVAR) || rb_special_const_p(obj)) {
st_data_t data;
if (st_lookup(generic_iv_tbl, (st_data_t)obj, &data) &&
(tbl = (st_table *)data) != 0) {
return tbl->num_entries;
}
}
break;
}
return 0;
}
static int
ivar_i(st_data_t k, st_data_t v, st_data_t a)
{
ID key = (ID)k;
VALUE ary = (VALUE)a;
if (rb_is_instance_id(key)) {
rb_ary_push(ary, ID2SYM(key));
}
return ST_CONTINUE;
}
/*
* call-seq:
* obj.instance_variables -> array
*
* Returns an array of instance variable names for the receiver. Note
* that simply defining an accessor does not create the corresponding
* instance variable.
*
* class Fred
* attr_accessor :a1
* def initialize
* @iv = 3
* end
* end
* Fred.new.instance_variables #=> [:@iv]
*/
VALUE
rb_obj_instance_variables(VALUE obj)
{
VALUE ary;
ary = rb_ary_new();
rb_ivar_foreach(obj, ivar_i, ary);
return ary;
}
/*
* call-seq:
* obj.remove_instance_variable(symbol) -> obj
*
* Removes the named instance variable from <i>obj</i>, returning that
* variable's value.
*
* class Dummy
* attr_reader :var
* def initialize
* @var = 99
* end
* def remove
* remove_instance_variable(:@var)
* end
* end
* d = Dummy.new
* d.var #=> 99
* d.remove #=> 99
* d.var #=> nil
*/
VALUE
rb_obj_remove_instance_variable(VALUE obj, VALUE name)
{
VALUE val = Qnil;
const ID id = rb_check_id(&name);
st_data_t n, v;
struct st_table *iv_index_tbl;
st_data_t index;
rb_check_frozen(obj);
if (!id) {
if (rb_is_instance_name(name)) {
rb_name_error_str(name, "instance variable %"PRIsVALUE" not defined",
name);
}
else {
rb_name_error_str(name, "`%"PRIsVALUE"' is not allowed as an instance variable name",
QUOTE(name));
}
}
if (!rb_is_instance_id(id)) {
rb_name_error(id, "`%"PRIsVALUE"' is not allowed as an instance variable name",
QUOTE_ID(id));
}
if (SPECIAL_CONST_P(obj)) goto generic;
switch (BUILTIN_TYPE(obj)) {
case T_OBJECT:
iv_index_tbl = ROBJECT_IV_INDEX_TBL(obj);
if (!iv_index_tbl) break;
if (!st_lookup(iv_index_tbl, (st_data_t)id, &index)) break;
if (ROBJECT_NUMIV(obj) <= (long)index) break;
val = ROBJECT_IVPTR(obj)[index];
if (val != Qundef) {
ROBJECT_IVPTR(obj)[index] = Qundef;
return val;
}
break;
case T_CLASS:
case T_MODULE:
n = id;
if (RCLASS_IV_TBL(obj) && st_delete(RCLASS_IV_TBL(obj), &n, &v)) {
return (VALUE)v;
}
break;
default:
generic:
if (FL_TEST(obj, FL_EXIVAR) || rb_special_const_p(obj)) {
v = val;
if (generic_ivar_remove(obj, (st_data_t)id, &v)) {
return (VALUE)v;
}
}
break;
}
rb_name_error(id, "instance variable %"PRIsVALUE" not defined", QUOTE_ID(id));
2012-04-13 20:36:26 -04:00
UNREACHABLE;
}
NORETURN(static void uninitialized_constant(VALUE, ID));
static void
uninitialized_constant(VALUE klass, ID id)
{
if (klass && rb_class_real(klass) != rb_cObject)
rb_name_error(id, "uninitialized constant %"PRIsVALUE"::%"PRIsVALUE"",
rb_class_name(klass),
QUOTE_ID(id));
else {
rb_name_error(id, "uninitialized constant %"PRIsVALUE"", QUOTE_ID(id));
}
}
static VALUE
const_missing(VALUE klass, ID id)
{
return rb_funcall(klass, rb_intern("const_missing"), 1, ID2SYM(id));
}
/*
* call-seq:
* mod.const_missing(sym) -> obj
*
* Invoked when a reference is made to an undefined constant in
* <i>mod</i>. It is passed a symbol for the undefined constant, and
* returns a value to be used for that constant. The
* following code is an example of the same:
*
* def Foo.const_missing(name)
* name # return the constant name as Symbol
* end
*
* Foo::UNDEFINED_CONST #=> :UNDEFINED_CONST: symbol returned
*
* In the next example when a reference is made to an undefined constant,
* it attempts to load a file whose name is the lowercase version of the
* constant (thus class <code>Fred</code> is assumed to be in file
* <code>fred.rb</code>). If found, it returns the loaded class. It
* therefore implements an autoload feature similar to Kernel#autoload and
* Module#autoload.
*
* def Object.const_missing(name)
* @looked_for ||= {}
* str_name = name.to_s
* raise "Class not found: #{name}" if @looked_for[str_name]
* @looked_for[str_name] = 1
* file = str_name.downcase
* require file
* klass = const_get(name)
* return klass if klass
* raise "Class not found: #{name}"
* end
*
*/
VALUE
rb_mod_const_missing(VALUE klass, VALUE name)
{
rb_frame_pop(); /* pop frame for "const_missing" */
uninitialized_constant(klass, rb_to_id(name));
2012-04-13 20:36:26 -04:00
UNREACHABLE;
}
static void
autoload_mark(void *ptr)
{
rb_mark_tbl((st_table *)ptr);
}
static void
autoload_free(void *ptr)
{
st_free_table((st_table *)ptr);
}
static size_t
autoload_memsize(const void *ptr)
{
const st_table *tbl = ptr;
return st_memsize(tbl);
}
static const rb_data_type_t autoload_data_type = {
"autoload",
{autoload_mark, autoload_free, autoload_memsize,},
};
#define check_autoload_table(av) \
(struct st_table *)rb_check_typeddata((av), &autoload_data_type)
static VALUE
autoload_data(VALUE mod, ID id)
{
struct st_table *tbl;
st_data_t val;
if (!st_lookup(RCLASS_IV_TBL(mod), autoload, &val) ||
!(tbl = check_autoload_table((VALUE)val)) || !st_lookup(tbl, (st_data_t)id, &val)) {
return 0;
}
return (VALUE)val;
}
struct autoload_data_i {
VALUE feature;
int safe_level;
VALUE thread;
VALUE value;
};
static void
autoload_i_mark(void *ptr)
{
struct autoload_data_i *p = ptr;
rb_gc_mark(p->feature);
rb_gc_mark(p->thread);
rb_gc_mark(p->value);
}
static void
autoload_i_free(void *ptr)
{
struct autoload_data_i *p = ptr;
xfree(p);
}
static size_t
autoload_i_memsize(const void *ptr)
{
return sizeof(struct autoload_data_i);
}
static const rb_data_type_t autoload_data_i_type = {
"autoload_i",
{autoload_i_mark, autoload_i_free, autoload_i_memsize,},
};
#define check_autoload_data(av) \
(struct autoload_data_i *)rb_check_typeddata((av), &autoload_data_i_type)
void
rb_autoload(VALUE mod, ID id, const char *file)
{
st_data_t av;
VALUE ad, fn;
struct st_table *tbl;
struct autoload_data_i *ele;
if (!rb_is_const_id(id)) {
rb_raise(rb_eNameError, "autoload must be constant name: %"PRIsVALUE"",
QUOTE_ID(id));
}
if (!file || !*file) {
rb_raise(rb_eArgError, "empty file name");
}
if ((tbl = RCLASS_CONST_TBL(mod)) && st_lookup(tbl, (st_data_t)id, &av) && ((rb_const_entry_t*)av)->value != Qundef)
return;
rb_const_set(mod, id, Qundef);
tbl = RCLASS_IV_TBL(mod);
if (tbl && st_lookup(tbl, (st_data_t)autoload, &av)) {
tbl = check_autoload_table((VALUE)av);
}
else {
if (!tbl) tbl = RCLASS_IV_TBL(mod) = st_init_numtable();
av = (st_data_t)TypedData_Wrap_Struct(0, &autoload_data_type, 0);
st_add_direct(tbl, (st_data_t)autoload, av);
OBJ_WRITTEN(mod, Qnil, av);
DATA_PTR(av) = tbl = st_init_numtable();
}
fn = rb_str_new2(file);
FL_UNSET(fn, FL_TAINT);
OBJ_FREEZE(fn);
ele = ALLOC(struct autoload_data_i);
ele->feature = fn;
ele->safe_level = rb_safe_level();
ele->thread = Qnil;
ele->value = Qundef;
ad = TypedData_Wrap_Struct(0, &autoload_data_i_type, ele);
st_insert(tbl, (st_data_t)id, (st_data_t)ad);
}
static void
autoload_delete(VALUE mod, ID id)
{
st_data_t val, load = 0, n = id;
rb_const_entry_t *ce;
st_delete(RCLASS_CONST_TBL(mod), &n, &val);
ce = (rb_const_entry_t*)val;
if (ce) xfree(ce);
if (st_lookup(RCLASS_IV_TBL(mod), (st_data_t)autoload, &val)) {
struct st_table *tbl = check_autoload_table((VALUE)val);
st_delete(tbl, &n, &load);
if (tbl->num_entries == 0) {
n = autoload;
st_delete(RCLASS_IV_TBL(mod), &n, &val);
}
}
}
static VALUE
autoload_provided(VALUE arg)
{
const char **p = (const char **)arg;
return rb_feature_provided(*p, p);
}
static VALUE
reset_safe(VALUE safe)
{
rb_set_safe_level_force((int)safe);
return safe;
}
static VALUE
check_autoload_required(VALUE mod, ID id, const char **loadingpath)
{
VALUE file, load;
struct autoload_data_i *ele;
const char *loading;
int safe;
if (!(load = autoload_data(mod, id)) || !(ele = check_autoload_data(load))) {
return 0;
}
file = ele->feature;
Check_Type(file, T_STRING);
if (!RSTRING_PTR(file) || !*RSTRING_PTR(file)) {
rb_raise(rb_eArgError, "empty file name");
}
loading = RSTRING_PTR(file);
safe = rb_safe_level();
rb_set_safe_level_force(0);
if (!rb_ensure(autoload_provided, (VALUE)&loading, reset_safe, (VALUE)safe)) {
return load;
}
if (loadingpath && loading) {
*loadingpath = loading;
return load;
}
return 0;
}
int
rb_autoloading_value(VALUE mod, ID id, VALUE* value)
{
VALUE load;
struct autoload_data_i *ele;
if (!(load = autoload_data(mod, id)) || !(ele = check_autoload_data(load))) {
return 0;
}
if (ele->thread == rb_thread_current()) {
if (ele->value != Qundef) {
if (value) {
*value = ele->value;
}
return 1;
}
}
return 0;
}
static int
autoload_defined_p(VALUE mod, ID id)
{
struct st_table *tbl = RCLASS_CONST_TBL(mod);
st_data_t val;
if (!tbl || !st_lookup(tbl, (st_data_t)id, &val) || ((rb_const_entry_t*)val)->value != Qundef) {
return 0;
}
return !rb_autoloading_value(mod, id, NULL);
}
struct autoload_const_set_args {
VALUE mod;
ID id;
VALUE value;
};
static VALUE
autoload_const_set(VALUE arg)
{
struct autoload_const_set_args* args = (struct autoload_const_set_args *)arg;
autoload_delete(args->mod, args->id);
rb_const_set(args->mod, args->id, args->value);
return 0; /* ignored */
}
static VALUE
autoload_require(VALUE arg)
{
struct autoload_data_i *ele = (struct autoload_data_i *)arg;
return rb_require_safe(ele->feature, ele->safe_level);
}
VALUE
rb_autoload_load(VALUE mod, ID id)
{
VALUE load, result;
const char *loading = 0, *src;
struct autoload_data_i *ele;
int state = 0;
if (!autoload_defined_p(mod, id)) return Qfalse;
load = check_autoload_required(mod, id, &loading);
if (!load) return Qfalse;
src = rb_sourcefile();
if (src && loading && strcmp(src, loading) == 0) return Qfalse;
/* set ele->thread for a marker of autoloading thread */
if (!(ele = check_autoload_data(load))) {
return Qfalse;
}
if (ele->thread == Qnil) {
ele->thread = rb_thread_current();
}
/* autoload_data_i can be deleted by another thread while require */
result = rb_protect(autoload_require, (VALUE)ele, &state);
if (ele->thread == rb_thread_current()) {
ele->thread = Qnil;
}
if (state) rb_jump_tag(state);
if (RTEST(result)) {
/* At the last, move a value defined in autoload to constant table */
if (ele->value != Qundef) {
int safe_backup;
struct autoload_const_set_args args;
args.mod = mod;
args.id = id;
args.value = ele->value;
safe_backup = rb_safe_level();
rb_set_safe_level_force(ele->safe_level);
rb_ensure(autoload_const_set, (VALUE)&args, reset_safe, (VALUE)safe_backup);
}
}
RB_GC_GUARD(load);
return result;
}
VALUE
rb_autoload_p(VALUE mod, ID id)
{
VALUE load;
struct autoload_data_i *ele;
while (!autoload_defined_p(mod, id)) {
mod = RCLASS_SUPER(mod);
if (!mod) return Qnil;
}
load = check_autoload_required(mod, id, 0);
if (!load) return Qnil;
return (ele = check_autoload_data(load)) ? ele->feature : Qnil;
}
static VALUE
rb_const_get_0(VALUE klass, ID id, int exclude, int recurse, int visibility)
{
VALUE value, tmp, av;
int mod_retry = 0;
tmp = klass;
* eval.c (block_pass): should not downgrade safe level. * ext/dbm/extconf.rb: allow specifying dbm-type explicitly. * ext/dbm/extconf.rb: avoid gdbm if possible, because it leaks memory, whereas gdbm.so doesn't. potential incompatibility. * string.c (rb_str_insert): new method. * parse.y (yylex): lex_state after RESCUE_MOD should be EXPR_BEG. * array.c (rb_ary_insert): new method. * array.c (rb_ary_update): new utility function. * io.c (set_outfile): should check if closed before assignment. * eval.c (rb_eval): should preserve value of ruby_errinfo. * eval.c (rb_thread_schedule): infinite sleep should not cause dead lock. * array.c (rb_ary_flatten_bang): proper recursive detection. * eval.c (yield_under): need not to prohibit at safe level 4. * pack.c (pack_pack): p/P packs nil into NULL. * pack.c (pack_unpack): p/P unpacks NULL into nil. * pack.c (pack_pack): size check for P template. * ruby.c (set_arg0): wrong predicate when new $0 value is bigger than original space. * gc.c (id2ref): should use NUM2ULONG() * object.c (rb_mod_const_get): check whether name is a class variable name. * object.c (rb_mod_const_set): ditto. * object.c (rb_mod_const_defined): ditto. * marshal.c (w_float): precision changed to "%.16g" * eval.c (rb_call0): wrong retry behavior. * numeric.c (fix_aref): a bug on long>int architecture. * eval.c (rb_eval_string_wrap): should restore ruby_wrapper. * regex.c (re_compile_pattern): char class at either edge of range should be invalid. * eval.c (handle_rescue): use === to compare exception match. * error.c (syserr_eqq): comparison between SytemCallErrors should based on their error numbers. * eval.c (safe_getter): should use INT2NUM(). * bignum.c (rb_big2long): 2**31 cannot fit in 31 bit long. * regex.c (calculate_must_string): wrong length calculation. * eval.c (rb_thread_start_0): fixed memory leak. * parse.y (none): should clear cmdarg_stack too. * io.c (rb_fopen): use setvbuf() to avoid recursive malloc() on some platforms. * file.c (rb_stat_dev): device functions should honor stat field types (except long long such as dev_t). * eval.c (rb_mod_nesting): should not push nil for nesting array. * eval.c (rb_mod_s_constants): should not search array by rb_mod_const_at() for nil (happens for singleton class). * class.c (rb_singleton_class_attached): should modify iv_tbl by itself, no longer use rb_iv_set() to avoid freeze check error. * variable.c (rb_const_get): error message "uninitialized constant Foo at Bar::Baz" instead of "uninitialized constantBar::Baz::Foo". * eval.c (rb_mod_included): new hook called from rb_mod_include(). * io.c (opt_i_set): should strdup() inplace_edit string. * eval.c (exec_under): need to push cref too. * eval.c (rb_f_missing): raise NameError for "undefined local variable or method". * error.c (Init_Exception): new exception NoMethodError. NameError moved under ScriptError again. * eval.c (rb_f_missing): use NoMethodError instead of NameError. * file.c (Init_File): should redifine "new" class method. * eval.c (PUSH_CREF): sharing cref node was problematic. maintain runtime cref list instead. * eval.c (rb_eval): copy defn node before registering. * eval.c (rb_load): clear ruby_cref before loading. * variable.c (rb_const_get): no recursion to show full class path for modules. * eval.c (rb_set_safe_level): should set safe level in curr_thread as well. * eval.c (safe_setter): ditto. * object.c (rb_obj_is_instance_of): nil belongs to false, not true. * time.c (make_time_t): proper (I hope) daylight saving time handling for both US and Europe. I HATE DST! * eval.c (rb_thread_wait_for): non blocked signal interrupt should stop the interval. * eval.c (proc_eq): class check aded. * eval.c (proc_eq): typo fixed ("return" was ommitted). * error.c (Init_Exception): move NameError under StandardError. * class.c (rb_mod_clone): should copy method bodies too. * bignum.c (bigdivrem): should trim trailing zero bdigits of remainder, even if dd == 0. * file.c (check3rdbyte): safe string check moved here. * time.c (make_time_t): remove HAVE_TM_ZONE code since it sometimes reports wrong time. * time.c (make_time_t): remove unnecessary range check for platforms where negative time_t is available. * process.c (proc_waitall): should push Process::Status instead of Finuxm status. * process.c (waitall_each): should add all entries in pid_tbl. these changes are inspired by Koji Arai. Thanks. * process.c (proc_wait): should not iterate if pid_tbl is 0. * process.c (proc_waitall): ditto. * numeric.c (flodivmod): a bug in no fmod case. * process.c (pst_wifsignaled): should apply WIFSIGNALED for status (int), not st (VALUE). * io.c (Init_IO): value of $/ and $\ are no longer restricted to strings. type checks are done on demand. * class.c (rb_include_module): module inclusion should be check taints. * ruby.h (STR2CSTR): replace to StringType() and StringTypePtr(). * ruby.h (rb_str2cstr): ditto. * eval.c (rb_load): should not copy topleve local variables. It cause variable/method ambiguity. Thanks to L. Peter Deutsch. * class.c (rb_include_module): freeze check at first. * eval.c (rb_attr): sprintf() and rb_intern() moved into conditional body. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-05-02 00:22:21 -04:00
retry:
while (RTEST(tmp)) {
VALUE am = 0;
st_data_t data;
while (RCLASS_CONST_TBL(tmp) && st_lookup(RCLASS_CONST_TBL(tmp), (st_data_t)id, &data)) {
rb_const_entry_t *ce = (rb_const_entry_t *)data;
if (visibility && ce->flag == CONST_PRIVATE) {
rb_name_error(id, "private constant %"PRIsVALUE"::%"PRIsVALUE" referenced",
rb_class_name(klass), QUOTE_ID(id));
}
value = ce->value;
if (value == Qundef) {
if (am == tmp) break;
am = tmp;
if (rb_autoloading_value(tmp, id, &av)) return av;
rb_autoload_load(tmp, id);
continue;
}
if (exclude && tmp == rb_cObject && klass != rb_cObject) {
rb_warn("toplevel constant %"PRIsVALUE" referenced by %"PRIsVALUE"::%"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(klass), QUOTE_ID(id));
}
return value;
}
if (!recurse) break;
tmp = RCLASS_SUPER(tmp);
}
if (!exclude && !mod_retry && BUILTIN_TYPE(klass) == T_MODULE) {
mod_retry = 1;
tmp = rb_cObject;
goto retry;
}
value = const_missing(klass, id);
rb_vm_inc_const_missing_count();
return value;
}
VALUE
rb_const_get_from(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, TRUE, TRUE, FALSE);
}
VALUE
rb_const_get(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, FALSE, TRUE, FALSE);
}
VALUE
rb_const_get_at(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, TRUE, FALSE, FALSE);
}
VALUE
rb_public_const_get_from(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, TRUE, TRUE, TRUE);
}
VALUE
rb_public_const_get(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, FALSE, TRUE, TRUE);
}
VALUE
rb_public_const_get_at(VALUE klass, ID id)
{
return rb_const_get_0(klass, id, TRUE, FALSE, TRUE);
}
/*
* call-seq:
* remove_const(sym) -> obj
*
* Removes the definition of the given constant, returning that
* constant's previous value. If that constant referred to
* a module, this will not change that module's name and can lead
* to confusion.
*/
VALUE
rb_mod_remove_const(VALUE mod, VALUE name)
{
const ID id = rb_check_id(&name);
if (!id) {
if (rb_is_const_name(name)) {
rb_name_error_str(name, "constant %"PRIsVALUE"::%"PRIsVALUE" not defined",
rb_class_name(mod), name);
}
else {
rb_name_error_str(name, "`%"PRIsVALUE"' is not allowed as a constant name",
QUOTE(name));
}
}
if (!rb_is_const_id(id)) {
rb_name_error(id, "`%"PRIsVALUE"' is not allowed as a constant name",
QUOTE_ID(id));
}
return rb_const_remove(mod, id);
}
VALUE
rb_const_remove(VALUE mod, ID id)
{
VALUE val;
st_data_t v, n = id;
rb_check_frozen(mod);
if (!RCLASS_CONST_TBL(mod) || !st_delete(RCLASS_CONST_TBL(mod), &n, &v)) {
if (rb_const_defined_at(mod, id)) {
rb_name_error(id, "cannot remove %"PRIsVALUE"::%"PRIsVALUE"",
rb_class_name(mod), QUOTE_ID(id));
}
rb_name_error(id, "constant %"PRIsVALUE"::%"PRIsVALUE" not defined",
rb_class_name(mod), QUOTE_ID(id));
}
rb_clear_constant_cache();
val = ((rb_const_entry_t*)v)->value;
if (val == Qundef) {
autoload_delete(mod, id);
val = Qnil;
}
xfree((rb_const_entry_t*)v);
return val;
}
static int
sv_i(st_data_t k, st_data_t v, st_data_t a)
{
ID key = (ID)k;
rb_const_entry_t *ce = (rb_const_entry_t *)v;
st_table *tbl = (st_table *)a;
if (rb_is_const_id(key)) {
if (!st_lookup(tbl, (st_data_t)key, 0)) {
st_insert(tbl, (st_data_t)key, (st_data_t)ce);
}
}
return ST_CONTINUE;
}
void*
rb_mod_const_at(VALUE mod, void *data)
{
st_table *tbl = data;
if (!tbl) {
tbl = st_init_numtable();
}
if (RCLASS_CONST_TBL(mod)) {
st_foreach_safe(RCLASS_CONST_TBL(mod), sv_i, (st_data_t)tbl);
}
return tbl;
}
void*
rb_mod_const_of(VALUE mod, void *data)
{
VALUE tmp = mod;
for (;;) {
data = rb_mod_const_at(tmp, data);
tmp = RCLASS_SUPER(tmp);
if (!tmp) break;
if (tmp == rb_cObject && mod != rb_cObject) break;
}
return data;
}
static int
list_i(st_data_t key, st_data_t value, VALUE ary)
{
ID sym = (ID)key;
rb_const_entry_t *ce = (rb_const_entry_t *)value;
if (ce->flag != CONST_PRIVATE) rb_ary_push(ary, ID2SYM(sym));
return ST_CONTINUE;
}
VALUE
rb_const_list(void *data)
{
st_table *tbl = data;
VALUE ary;
if (!tbl) return rb_ary_new2(0);
ary = rb_ary_new2(tbl->num_entries);
st_foreach_safe(tbl, list_i, ary);
st_free_table(tbl);
return ary;
}
/*
* call-seq:
* mod.constants(inherit=true) -> array
*
* Returns an array of the names of the constants accessible in
* <i>mod</i>. This includes the names of constants in any included
* modules (example at start of section), unless the <i>inherit</i>
* parameter is set to <code>false</code>.
*
* IO.constants.include?(:SYNC) #=> true
* IO.constants(false).include?(:SYNC) #=> false
*
* Also see <code>Module::const_defined?</code>.
*/
VALUE
rb_mod_constants(int argc, VALUE *argv, VALUE mod)
{
VALUE inherit;
st_table *tbl;
if (argc == 0) {
inherit = Qtrue;
}
else {
rb_scan_args(argc, argv, "01", &inherit);
}
if (RTEST(inherit)) {
tbl = rb_mod_const_of(mod, 0);
}
else {
tbl = rb_mod_const_at(mod, 0);
}
return rb_const_list(tbl);
}
static int
rb_const_defined_0(VALUE klass, ID id, int exclude, int recurse, int visibility)
{
st_data_t value;
VALUE tmp;
int mod_retry = 0;
tmp = klass;
retry:
while (tmp) {
if (RCLASS_CONST_TBL(tmp) && st_lookup(RCLASS_CONST_TBL(tmp), (st_data_t)id, &value)) {
rb_const_entry_t *ce = (rb_const_entry_t *)value;
if (visibility && ce->flag == CONST_PRIVATE) {
return (int)Qfalse;
}
if (ce->value == Qundef && !check_autoload_required(tmp, id, 0) && !rb_autoloading_value(tmp, id, 0))
return (int)Qfalse;
return (int)Qtrue;
}
if (!recurse) break;
tmp = RCLASS_SUPER(tmp);
}
if (!exclude && !mod_retry && BUILTIN_TYPE(klass) == T_MODULE) {
mod_retry = 1;
tmp = rb_cObject;
goto retry;
}
return (int)Qfalse;
}
int
rb_const_defined_from(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, TRUE, TRUE, FALSE);
}
int
rb_const_defined(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, FALSE, TRUE, FALSE);
}
int
rb_const_defined_at(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, TRUE, FALSE, FALSE);
}
int
rb_public_const_defined_from(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, TRUE, TRUE, TRUE);
}
int
rb_public_const_defined(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, FALSE, TRUE, TRUE);
}
int
rb_public_const_defined_at(VALUE klass, ID id)
{
return rb_const_defined_0(klass, id, TRUE, FALSE, TRUE);
}
static void
check_before_mod_set(VALUE klass, ID id, VALUE val, const char *dest)
{
rb_check_frozen(klass);
}
void
rb_const_set(VALUE klass, ID id, VALUE val)
{
rb_const_entry_t *ce;
rb_const_flag_t visibility = CONST_PUBLIC;
* sprintf.c (rb_str_format): allow %c to print one character string (e.g. ?x). * lib/tempfile.rb (Tempfile::make_tmpname): put dot between basename and pid. [ruby-talk:196272] * parse.y (do_block): remove -> style block. * parse.y (parser_yylex): remove tLAMBDA_ARG. * eval.c (rb_call0): binding for the return event hook should have consistent scope. [ruby-core:07928] * eval.c (proc_invoke): return behavior should depend whether it is surrounded by a lambda or a mere block. * eval.c (formal_assign): handles post splat arguments. * eval.c (rb_call0): ditto. * st.c (strhash): use FNV-1a hash. * parse.y (parser_yylex): removed experimental ';;' terminator. * eval.c (rb_node_arity): should be aware of post splat arguments. * eval.c (rb_proc_arity): ditto. * parse.y (f_args): syntax rule enhanced to support arguments after the splat. * parse.y (block_param): ditto for block parameters. * parse.y (f_post_arg): mandatory formal arguments after the splat argument. * parse.y (new_args_gen): generate nodes for mandatory formal arguments after the splat argument. * eval.c (rb_eval): dispatch mandatory formal arguments after the splat argument. * parse.y (args): allow more than one splat in the argument list. * parse.y (method_call): allow aref [] to accept all kind of method argument, including assocs, splat, and block argument. * eval.c (SETUP_ARGS0): prepare block argument as well. * lib/mathn.rb (Integer): remove Integer#gcd2. [ruby-core:07931] * eval.c (error_line): print receivers true/false/nil specially. * eval.c (rb_proc_yield): handles parameters in yield semantics. * eval.c (nil_yield): gives LocalJumpError to denote no block error. * io.c (rb_io_getc): now takes one-character string. * string.c (rb_str_hash): use FNV-1a hash from Fowler/Noll/Vo hashing algorithm. * string.c (rb_str_aref): str[0] now returns 1 character string, instead of a fixnum. [Ruby2] * parse.y (parser_yylex): ?c now returns 1 character string, instead of a fixnum. [Ruby2] * string.c (rb_str_aset): no longer support fixnum insertion. * eval.c (umethod_bind): should not update original class. [ruby-dev:28636] * eval.c (ev_const_get): should support constant access from within instance_eval(). [ruby-dev:28327] * time.c (time_timeval): should round for usec floating number. [ruby-core:07896] * time.c (time_add): ditto. * dir.c (sys_warning): should not call a vararg function rb_sys_warning() indirectly. [ruby-core:07886] * numeric.c (flo_divmod): the first element of Float#divmod should be an integer. [ruby-dev:28589] * test/ruby/test_float.rb: add tests for divmod, div, modulo and remainder. * re.c (rb_reg_initialize): should not allow modifying literal regexps. frozen check moved from rb_reg_initialize_m as well. * re.c (rb_reg_initialize): should not modify untainted objects in safe levels higher than 3. * re.c (rb_memcmp): type change from char* to const void*. * dir.c (dir_close): should not close untainted dir stream. * dir.c (GetDIR): add tainted/frozen check for each dir operation. * lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_symbol_arg): typo fixed. a patch from Florian Gross <florg at florg.net>. * eval.c (EXEC_EVENT_HOOK): trace_func may remove itself from event_hooks. no guarantee for arbitrary hook deletion. [ruby-dev:28632] * util.c (ruby_strtod): differ addition to minimize error. [ruby-dev:28619] * util.c (ruby_strtod): should not raise ERANGE when the input string does not have any digits. [ruby-dev:28629] * eval.c (proc_invoke): should restore old ruby_frame->block. thanks to ts <decoux at moulon.inra.fr>. [ruby-core:07833] also fix [ruby-dev:28614] as well. * signal.c (trap): sig should be less then NSIG. Coverity found this bug. a patch from Kevin Tew <tewk at tewk.com>. [ruby-core:07823] * math.c (math_log2): add new method inspired by [ruby-talk:191237]. * math.c (math_log): add optional base argument to Math::log(). [ruby-talk:191308] * ext/syck/emitter.c (syck_scan_scalar): avoid accessing uninitialized array element. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07809] * array.c (rb_ary_fill): initialize local variables first. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07810] * ext/syck/yaml2byte.c (syck_yaml2byte_handler): need to free type_tag. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07808] * ext/socket/socket.c (make_hostent_internal): accept ai_family check from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07691] * util.c (ruby_strtod): should not cut off 18 digits for no reason. [ruby-core:07796] * array.c (rb_ary_fill): internalize local variable "beg" to pacify Coverity. [ruby-core:07770] * pack.c (pack_unpack): now supports CRLF newlines. a patch from <tommy at tmtm.org>. [ruby-dev:28601] * applied code clean-up patch from Stefan Huehner <stefan at huehner.org>. [ruby-core:07764] * lib/jcode.rb (String::tr_s): should have translated non squeezing character sequence (i.e. a character) as well. thanks to Hiroshi Ichikawa <gimite at gimite.ddo.jp> [ruby-list:42090] * ext/socket/socket.c: document update patch from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07701] * lib/mathn.rb (Integer): need not to remove gcd2. a patch from NARUSE, Yui <naruse at airemix.com>. [ruby-dev:28570] * parse.y (arg): too much NEW_LIST() * eval.c (SETUP_ARGS0): remove unnecessary access to nd_alen. * eval.c (rb_eval): use ARGSCAT for NODE_OP_ASGN1. [ruby-dev:28585] * parse.y (arg): use NODE_ARGSCAT for placeholder. * lib/getoptlong.rb (GetoptLong::get): RDoc update patch from mathew <meta at pobox.com>. [ruby-core:07738] * variable.c (rb_const_set): raise error when no target klass is supplied. [ruby-dev:28582] * prec.c (prec_prec_f): documentation patch from <gerardo.santana at gmail.com>. [ruby-core:07689] * bignum.c (rb_big_pow): second operand may be too big even if it's a Fixnum. [ruby-talk:187984] * README.EXT: update symbol description. [ruby-talk:188104] * COPYING: explicitly note GPLv2. [ruby-talk:187922] * parse.y: remove some obsolete syntax rules (unparenthesized method calls in argument list). * eval.c (rb_call0): insecure calling should be checked for non NODE_SCOPE method invocations too. * eval.c (rb_alias): should preserve the current safe level as well as method definition. * process.c (rb_f_sleep): remove RDoc description about SIGALRM which is not valid on the current implementation. [ruby-dev:28464] Thu Mar 23 21:40:47 2006 K.Kosako <sndgk393 AT ybb.ne.jp> * eval.c (method_missing): should support argument splat in super. a bug in combination of super, splat and method_missing. [ruby-talk:185438] * configure.in: Solaris SunPro compiler -rapth patch from <kuwa at labs.fujitsu.com>. [ruby-dev:28443] * configure.in: remove enable_rpath=no for Solaris. [ruby-dev:28440] * ext/win32ole/win32ole.c (ole_val2olevariantdata): change behavior of converting OLE Variant object with VT_ARRAY|VT_UI1 and Ruby String object. * ruby.1: a clarification patch from David Lutterkort <dlutter at redhat.com>. [ruby-core:7508] * lib/rdoc/ri/ri_paths.rb (RI::Paths): adding paths from rubygems directories. a patch from Eric Hodel <drbrain at segment7.net>. [ruby-core:07423] * eval.c (rb_clear_cache_by_class): clearing wrong cache. * ext/extmk.rb: use :remove_destination to install extension libraries to avoid SEGV. [ruby-dev:28417] * eval.c (rb_thread_fd_writable): should not re-schedule output from KILLED thread (must be error printing). * array.c (rb_ary_flatten_bang): allow specifying recursion level. [ruby-talk:182170] * array.c (rb_ary_flatten): ditto. * gc.c (add_heap): a heap_slots may overflow. a patch from Stefan Weil <weil at mail.berlios.de>. * eval.c (rb_call): use separate cache for fcall/vcall invocation. * eval.c (rb_eval): NODE_FCALL, NODE_VCALL can call local functions. * eval.c (rb_mod_local): a new method to specify newly added visibility "local". * eval.c (search_method): search for local methods which are visible only from the current class. * class.c (rb_class_local_methods): a method to list local methods. * object.c (Init_Object): add BasicObject class as a top level BlankSlate class. * ruby.h (SYM2ID): should not cast to signed long. [ruby-core:07414] * class.c (rb_include_module): allow module duplication. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2006-06-09 17:20:17 -04:00
if (NIL_P(klass)) {
rb_raise(rb_eTypeError, "no class/module to define constant %"PRIsVALUE"",
QUOTE_ID(id));
* sprintf.c (rb_str_format): allow %c to print one character string (e.g. ?x). * lib/tempfile.rb (Tempfile::make_tmpname): put dot between basename and pid. [ruby-talk:196272] * parse.y (do_block): remove -> style block. * parse.y (parser_yylex): remove tLAMBDA_ARG. * eval.c (rb_call0): binding for the return event hook should have consistent scope. [ruby-core:07928] * eval.c (proc_invoke): return behavior should depend whether it is surrounded by a lambda or a mere block. * eval.c (formal_assign): handles post splat arguments. * eval.c (rb_call0): ditto. * st.c (strhash): use FNV-1a hash. * parse.y (parser_yylex): removed experimental ';;' terminator. * eval.c (rb_node_arity): should be aware of post splat arguments. * eval.c (rb_proc_arity): ditto. * parse.y (f_args): syntax rule enhanced to support arguments after the splat. * parse.y (block_param): ditto for block parameters. * parse.y (f_post_arg): mandatory formal arguments after the splat argument. * parse.y (new_args_gen): generate nodes for mandatory formal arguments after the splat argument. * eval.c (rb_eval): dispatch mandatory formal arguments after the splat argument. * parse.y (args): allow more than one splat in the argument list. * parse.y (method_call): allow aref [] to accept all kind of method argument, including assocs, splat, and block argument. * eval.c (SETUP_ARGS0): prepare block argument as well. * lib/mathn.rb (Integer): remove Integer#gcd2. [ruby-core:07931] * eval.c (error_line): print receivers true/false/nil specially. * eval.c (rb_proc_yield): handles parameters in yield semantics. * eval.c (nil_yield): gives LocalJumpError to denote no block error. * io.c (rb_io_getc): now takes one-character string. * string.c (rb_str_hash): use FNV-1a hash from Fowler/Noll/Vo hashing algorithm. * string.c (rb_str_aref): str[0] now returns 1 character string, instead of a fixnum. [Ruby2] * parse.y (parser_yylex): ?c now returns 1 character string, instead of a fixnum. [Ruby2] * string.c (rb_str_aset): no longer support fixnum insertion. * eval.c (umethod_bind): should not update original class. [ruby-dev:28636] * eval.c (ev_const_get): should support constant access from within instance_eval(). [ruby-dev:28327] * time.c (time_timeval): should round for usec floating number. [ruby-core:07896] * time.c (time_add): ditto. * dir.c (sys_warning): should not call a vararg function rb_sys_warning() indirectly. [ruby-core:07886] * numeric.c (flo_divmod): the first element of Float#divmod should be an integer. [ruby-dev:28589] * test/ruby/test_float.rb: add tests for divmod, div, modulo and remainder. * re.c (rb_reg_initialize): should not allow modifying literal regexps. frozen check moved from rb_reg_initialize_m as well. * re.c (rb_reg_initialize): should not modify untainted objects in safe levels higher than 3. * re.c (rb_memcmp): type change from char* to const void*. * dir.c (dir_close): should not close untainted dir stream. * dir.c (GetDIR): add tainted/frozen check for each dir operation. * lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_symbol_arg): typo fixed. a patch from Florian Gross <florg at florg.net>. * eval.c (EXEC_EVENT_HOOK): trace_func may remove itself from event_hooks. no guarantee for arbitrary hook deletion. [ruby-dev:28632] * util.c (ruby_strtod): differ addition to minimize error. [ruby-dev:28619] * util.c (ruby_strtod): should not raise ERANGE when the input string does not have any digits. [ruby-dev:28629] * eval.c (proc_invoke): should restore old ruby_frame->block. thanks to ts <decoux at moulon.inra.fr>. [ruby-core:07833] also fix [ruby-dev:28614] as well. * signal.c (trap): sig should be less then NSIG. Coverity found this bug. a patch from Kevin Tew <tewk at tewk.com>. [ruby-core:07823] * math.c (math_log2): add new method inspired by [ruby-talk:191237]. * math.c (math_log): add optional base argument to Math::log(). [ruby-talk:191308] * ext/syck/emitter.c (syck_scan_scalar): avoid accessing uninitialized array element. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07809] * array.c (rb_ary_fill): initialize local variables first. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07810] * ext/syck/yaml2byte.c (syck_yaml2byte_handler): need to free type_tag. a patch from Pat Eyler <rubypate at gmail.com>. [ruby-core:07808] * ext/socket/socket.c (make_hostent_internal): accept ai_family check from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07691] * util.c (ruby_strtod): should not cut off 18 digits for no reason. [ruby-core:07796] * array.c (rb_ary_fill): internalize local variable "beg" to pacify Coverity. [ruby-core:07770] * pack.c (pack_unpack): now supports CRLF newlines. a patch from <tommy at tmtm.org>. [ruby-dev:28601] * applied code clean-up patch from Stefan Huehner <stefan at huehner.org>. [ruby-core:07764] * lib/jcode.rb (String::tr_s): should have translated non squeezing character sequence (i.e. a character) as well. thanks to Hiroshi Ichikawa <gimite at gimite.ddo.jp> [ruby-list:42090] * ext/socket/socket.c: document update patch from Sam Roberts <sroberts at uniserve.com>. [ruby-core:07701] * lib/mathn.rb (Integer): need not to remove gcd2. a patch from NARUSE, Yui <naruse at airemix.com>. [ruby-dev:28570] * parse.y (arg): too much NEW_LIST() * eval.c (SETUP_ARGS0): remove unnecessary access to nd_alen. * eval.c (rb_eval): use ARGSCAT for NODE_OP_ASGN1. [ruby-dev:28585] * parse.y (arg): use NODE_ARGSCAT for placeholder. * lib/getoptlong.rb (GetoptLong::get): RDoc update patch from mathew <meta at pobox.com>. [ruby-core:07738] * variable.c (rb_const_set): raise error when no target klass is supplied. [ruby-dev:28582] * prec.c (prec_prec_f): documentation patch from <gerardo.santana at gmail.com>. [ruby-core:07689] * bignum.c (rb_big_pow): second operand may be too big even if it's a Fixnum. [ruby-talk:187984] * README.EXT: update symbol description. [ruby-talk:188104] * COPYING: explicitly note GPLv2. [ruby-talk:187922] * parse.y: remove some obsolete syntax rules (unparenthesized method calls in argument list). * eval.c (rb_call0): insecure calling should be checked for non NODE_SCOPE method invocations too. * eval.c (rb_alias): should preserve the current safe level as well as method definition. * process.c (rb_f_sleep): remove RDoc description about SIGALRM which is not valid on the current implementation. [ruby-dev:28464] Thu Mar 23 21:40:47 2006 K.Kosako <sndgk393 AT ybb.ne.jp> * eval.c (method_missing): should support argument splat in super. a bug in combination of super, splat and method_missing. [ruby-talk:185438] * configure.in: Solaris SunPro compiler -rapth patch from <kuwa at labs.fujitsu.com>. [ruby-dev:28443] * configure.in: remove enable_rpath=no for Solaris. [ruby-dev:28440] * ext/win32ole/win32ole.c (ole_val2olevariantdata): change behavior of converting OLE Variant object with VT_ARRAY|VT_UI1 and Ruby String object. * ruby.1: a clarification patch from David Lutterkort <dlutter at redhat.com>. [ruby-core:7508] * lib/rdoc/ri/ri_paths.rb (RI::Paths): adding paths from rubygems directories. a patch from Eric Hodel <drbrain at segment7.net>. [ruby-core:07423] * eval.c (rb_clear_cache_by_class): clearing wrong cache. * ext/extmk.rb: use :remove_destination to install extension libraries to avoid SEGV. [ruby-dev:28417] * eval.c (rb_thread_fd_writable): should not re-schedule output from KILLED thread (must be error printing). * array.c (rb_ary_flatten_bang): allow specifying recursion level. [ruby-talk:182170] * array.c (rb_ary_flatten): ditto. * gc.c (add_heap): a heap_slots may overflow. a patch from Stefan Weil <weil at mail.berlios.de>. * eval.c (rb_call): use separate cache for fcall/vcall invocation. * eval.c (rb_eval): NODE_FCALL, NODE_VCALL can call local functions. * eval.c (rb_mod_local): a new method to specify newly added visibility "local". * eval.c (search_method): search for local methods which are visible only from the current class. * class.c (rb_class_local_methods): a method to list local methods. * object.c (Init_Object): add BasicObject class as a top level BlankSlate class. * ruby.h (SYM2ID): should not cast to signed long. [ruby-core:07414] * class.c (rb_include_module): allow module duplication. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2006-06-09 17:20:17 -04:00
}
check_before_mod_set(klass, id, val, "constant");
if (!RCLASS_CONST_TBL(klass)) {
RCLASS_CONST_TBL(klass) = st_init_numtable();
}
else {
st_data_t value;
if (st_lookup(RCLASS_CONST_TBL(klass), (st_data_t)id, &value)) {
rb_const_entry_t *ce = (rb_const_entry_t*)value;
if (ce->value == Qundef) {
VALUE load;
struct autoload_data_i *ele;
load = autoload_data(klass, id);
/* for autoloading thread, keep the defined value to autoloading storage */
if (load && (ele = check_autoload_data(load)) && (ele->thread == rb_thread_current())) {
rb_clear_constant_cache();
ele->value = val; /* autoload_i is shady */
return;
}
/* otherwise, allow to override */
autoload_delete(klass, id);
}
else {
VALUE name = QUOTE_ID(id);
visibility = ce->flag;
if (klass == rb_cObject)
rb_warn("already initialized constant %"PRIsVALUE"", name);
else
rb_warn("already initialized constant %"PRIsVALUE"::%"PRIsVALUE"",
rb_class_name(klass), name);
if (!NIL_P(ce->file) && ce->line) {
rb_compile_warn(RSTRING_PTR(ce->file), ce->line,
"previous definition of %"PRIsVALUE" was here", name);
}
}
}
}
rb_clear_constant_cache();
ce = ALLOC(rb_const_entry_t);
MEMZERO(ce, rb_const_entry_t, 1);
ce->flag = visibility;
ce->line = rb_sourceline();
st_insert(RCLASS_CONST_TBL(klass), (st_data_t)id, (st_data_t)ce);
OBJ_WRITE(klass, &ce->value, val);
OBJ_WRITE(klass, &ce->file, rb_sourcefilename());
}
void
rb_define_const(VALUE klass, const char *name, VALUE val)
{
ID id = rb_intern(name);
if (!rb_is_const_id(id)) {
rb_warn("rb_define_const: invalid name `%s' for constant", name);
}
rb_const_set(klass, id, val);
}
void
rb_define_global_const(const char *name, VALUE val)
{
rb_define_const(rb_cObject, name, val);
}
static void
set_const_visibility(VALUE mod, int argc, VALUE *argv, rb_const_flag_t flag)
{
int i;
st_data_t v;
ID id;
if (argc == 0) {
rb_warning("%"PRIsVALUE" with no argument is just ignored",
QUOTE_ID(rb_frame_callee()));
return;
}
for (i = 0; i < argc; i++) {
VALUE val = argv[i];
id = rb_check_id(&val);
if (!id) {
if (i > 0) {
rb_clear_constant_cache();
}
rb_name_error_str(val, "constant %"PRIsVALUE"::%"PRIsVALUE" not defined",
rb_class_name(mod), QUOTE(val));
}
if (RCLASS_CONST_TBL(mod) &&
st_lookup(RCLASS_CONST_TBL(mod), (st_data_t)id, &v)) {
((rb_const_entry_t*)v)->flag = flag;
}
else {
if (i > 0) {
rb_clear_constant_cache();
}
rb_name_error(id, "constant %"PRIsVALUE"::%"PRIsVALUE" not defined",
rb_class_name(mod), QUOTE_ID(id));
}
}
rb_clear_constant_cache();
}
/*
* call-seq:
* mod.private_constant(symbol, ...) => mod
*
* Makes a list of existing constants private.
*/
VALUE
rb_mod_private_constant(int argc, VALUE *argv, VALUE obj)
{
set_const_visibility(obj, argc, argv, CONST_PRIVATE);
return obj;
}
/*
* call-seq:
* mod.public_constant(symbol, ...) => mod
*
* Makes a list of existing constants public.
*/
VALUE
rb_mod_public_constant(int argc, VALUE *argv, VALUE obj)
{
set_const_visibility(obj, argc, argv, CONST_PUBLIC);
return obj;
}
static VALUE
original_module(VALUE c)
{
if (RB_TYPE_P(c, T_ICLASS))
return RBASIC(c)->klass;
return c;
}
static int
cvar_lookup_at(VALUE klass, ID id, st_data_t *v)
{
if (!RCLASS_IV_TBL(klass)) return 0;
return st_lookup(RCLASS_IV_TBL(klass), (st_data_t)id, v);
}
static VALUE
cvar_front_klass(VALUE klass)
{
if (FL_TEST(klass, FL_SINGLETON)) {
VALUE obj = rb_ivar_get(klass, id__attached__);
if (RB_TYPE_P(obj, T_MODULE) || RB_TYPE_P(obj, T_CLASS)) {
return obj;
}
}
return RCLASS_SUPER(klass);
}
#define CVAR_FOREACH_ANCESTORS(klass, v, r) \
for (klass = cvar_front_klass(klass); klass; klass = RCLASS_SUPER(klass)) { \
if (cvar_lookup_at(klass, id, (v))) { \
r; \
} \
}
#define CVAR_LOOKUP(v,r) do {\
if (cvar_lookup_at(klass, id, (v))) {r;}\
CVAR_FOREACH_ANCESTORS(klass, v, r);\
} while(0)
void
rb_cvar_set(VALUE klass, ID id, VALUE val)
{
VALUE tmp, front = 0, target = 0;
tmp = klass;
CVAR_LOOKUP(0, {if (!front) front = klass; target = klass;});
if (target) {
if (front && target != front) {
st_data_t did = id;
if (RTEST(ruby_verbose)) {
rb_warning("class variable %"PRIsVALUE" of %"PRIsVALUE" is overtaken by %"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(original_module(front)),
rb_class_name(original_module(target)));
}
if (BUILTIN_TYPE(front) == T_CLASS) {
st_delete(RCLASS_IV_TBL(front),&did,0);
}
}
}
else {
target = tmp;
}
check_before_mod_set(target, id, val, "class variable");
if (!RCLASS_IV_TBL(target)) {
RCLASS_IV_TBL(target) = st_init_numtable();
}
rb_st_insert_id_and_value(target, RCLASS_IV_TBL(target), (st_data_t)id, (st_data_t)val);
}
VALUE
rb_cvar_get(VALUE klass, ID id)
{
VALUE tmp, front = 0, target = 0;
st_data_t value;
tmp = klass;
CVAR_LOOKUP(&value, {if (!front) front = klass; target = klass;});
if (!target) {
rb_name_error(id, "uninitialized class variable %"PRIsVALUE" in %"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(tmp));
}
if (front && target != front) {
st_data_t did = id;
if (RTEST(ruby_verbose)) {
rb_warning("class variable %"PRIsVALUE" of %"PRIsVALUE" is overtaken by %"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(original_module(front)),
rb_class_name(original_module(target)));
}
if (BUILTIN_TYPE(front) == T_CLASS) {
st_delete(RCLASS_IV_TBL(front),&did,0);
}
}
return (VALUE)value;
}
VALUE
rb_cvar_defined(VALUE klass, ID id)
{
if (!klass) return Qfalse;
CVAR_LOOKUP(0,return Qtrue);
return Qfalse;
}
void
rb_cv_set(VALUE klass, const char *name, VALUE val)
{
* eval.c (block_pass): should not downgrade safe level. * ext/dbm/extconf.rb: allow specifying dbm-type explicitly. * ext/dbm/extconf.rb: avoid gdbm if possible, because it leaks memory, whereas gdbm.so doesn't. potential incompatibility. * string.c (rb_str_insert): new method. * parse.y (yylex): lex_state after RESCUE_MOD should be EXPR_BEG. * array.c (rb_ary_insert): new method. * array.c (rb_ary_update): new utility function. * io.c (set_outfile): should check if closed before assignment. * eval.c (rb_eval): should preserve value of ruby_errinfo. * eval.c (rb_thread_schedule): infinite sleep should not cause dead lock. * array.c (rb_ary_flatten_bang): proper recursive detection. * eval.c (yield_under): need not to prohibit at safe level 4. * pack.c (pack_pack): p/P packs nil into NULL. * pack.c (pack_unpack): p/P unpacks NULL into nil. * pack.c (pack_pack): size check for P template. * ruby.c (set_arg0): wrong predicate when new $0 value is bigger than original space. * gc.c (id2ref): should use NUM2ULONG() * object.c (rb_mod_const_get): check whether name is a class variable name. * object.c (rb_mod_const_set): ditto. * object.c (rb_mod_const_defined): ditto. * marshal.c (w_float): precision changed to "%.16g" * eval.c (rb_call0): wrong retry behavior. * numeric.c (fix_aref): a bug on long>int architecture. * eval.c (rb_eval_string_wrap): should restore ruby_wrapper. * regex.c (re_compile_pattern): char class at either edge of range should be invalid. * eval.c (handle_rescue): use === to compare exception match. * error.c (syserr_eqq): comparison between SytemCallErrors should based on their error numbers. * eval.c (safe_getter): should use INT2NUM(). * bignum.c (rb_big2long): 2**31 cannot fit in 31 bit long. * regex.c (calculate_must_string): wrong length calculation. * eval.c (rb_thread_start_0): fixed memory leak. * parse.y (none): should clear cmdarg_stack too. * io.c (rb_fopen): use setvbuf() to avoid recursive malloc() on some platforms. * file.c (rb_stat_dev): device functions should honor stat field types (except long long such as dev_t). * eval.c (rb_mod_nesting): should not push nil for nesting array. * eval.c (rb_mod_s_constants): should not search array by rb_mod_const_at() for nil (happens for singleton class). * class.c (rb_singleton_class_attached): should modify iv_tbl by itself, no longer use rb_iv_set() to avoid freeze check error. * variable.c (rb_const_get): error message "uninitialized constant Foo at Bar::Baz" instead of "uninitialized constantBar::Baz::Foo". * eval.c (rb_mod_included): new hook called from rb_mod_include(). * io.c (opt_i_set): should strdup() inplace_edit string. * eval.c (exec_under): need to push cref too. * eval.c (rb_f_missing): raise NameError for "undefined local variable or method". * error.c (Init_Exception): new exception NoMethodError. NameError moved under ScriptError again. * eval.c (rb_f_missing): use NoMethodError instead of NameError. * file.c (Init_File): should redifine "new" class method. * eval.c (PUSH_CREF): sharing cref node was problematic. maintain runtime cref list instead. * eval.c (rb_eval): copy defn node before registering. * eval.c (rb_load): clear ruby_cref before loading. * variable.c (rb_const_get): no recursion to show full class path for modules. * eval.c (rb_set_safe_level): should set safe level in curr_thread as well. * eval.c (safe_setter): ditto. * object.c (rb_obj_is_instance_of): nil belongs to false, not true. * time.c (make_time_t): proper (I hope) daylight saving time handling for both US and Europe. I HATE DST! * eval.c (rb_thread_wait_for): non blocked signal interrupt should stop the interval. * eval.c (proc_eq): class check aded. * eval.c (proc_eq): typo fixed ("return" was ommitted). * error.c (Init_Exception): move NameError under StandardError. * class.c (rb_mod_clone): should copy method bodies too. * bignum.c (bigdivrem): should trim trailing zero bdigits of remainder, even if dd == 0. * file.c (check3rdbyte): safe string check moved here. * time.c (make_time_t): remove HAVE_TM_ZONE code since it sometimes reports wrong time. * time.c (make_time_t): remove unnecessary range check for platforms where negative time_t is available. * process.c (proc_waitall): should push Process::Status instead of Finuxm status. * process.c (waitall_each): should add all entries in pid_tbl. these changes are inspired by Koji Arai. Thanks. * process.c (proc_wait): should not iterate if pid_tbl is 0. * process.c (proc_waitall): ditto. * numeric.c (flodivmod): a bug in no fmod case. * process.c (pst_wifsignaled): should apply WIFSIGNALED for status (int), not st (VALUE). * io.c (Init_IO): value of $/ and $\ are no longer restricted to strings. type checks are done on demand. * class.c (rb_include_module): module inclusion should be check taints. * ruby.h (STR2CSTR): replace to StringType() and StringTypePtr(). * ruby.h (rb_str2cstr): ditto. * eval.c (rb_load): should not copy topleve local variables. It cause variable/method ambiguity. Thanks to L. Peter Deutsch. * class.c (rb_include_module): freeze check at first. * eval.c (rb_attr): sprintf() and rb_intern() moved into conditional body. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-05-02 00:22:21 -04:00
ID id = rb_intern(name);
if (!rb_is_class_id(id)) {
* error.c (exc_exception): clone the receiver exception instead of creating brand new exception object of the receiver. * eval.c (rb_eval_string_wrap): extend new ruby_top_self, not original self. * eval.c (rb_eval_cmd): respect ruby_wrapper if set. * eval.c (eval): do not update ruby_class unless scope is not provided. * eval.c (eval): preserve wrapper information. * eval.c (proc_invoke): ditto. * eval.c (block_pass): ditto. * parse.y (void_expr): too much warnings for void context (e.g. foo[1] that can be mere Proc call). * error.c (rb_name_error): new function to raise NameError with name attribute set. * eval.c (rb_f_missing): set name and args in the exception object. [new] * error.c (name_name): NameError#name - new method. * error.c (nometh_args): NoMethodError#args - new method. * lex.c (rb_reserved_word): lex_state after tRESCUE should be EXPR_MID. * gc.c (add_heap): allocation size of the heap unit is doubled for each allocation. * dir.c (isdelim): space, tab, and newline are no longer delimiters for glob patterns. * eval.c (svalue_to_avalue): new conversion scheme between single value and array values. * eval.c (avalue_to_svalue): ditto. * eval.c (rb_eval): REXPAND now uses avalue_to_svalue(), return and yield too. * eval.c (rb_yield_0): use avalue_to_svalue(). * eval.c (proc_invoke): Proc#call gives avaules, whereas Proc#yield gives mvalues. * eval.c (bmcall): convert given value (svalue) to avalue. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1555 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-07-02 04:46:28 -04:00
rb_name_error(id, "wrong class variable name %s", name);
* eval.c (block_pass): should not downgrade safe level. * ext/dbm/extconf.rb: allow specifying dbm-type explicitly. * ext/dbm/extconf.rb: avoid gdbm if possible, because it leaks memory, whereas gdbm.so doesn't. potential incompatibility. * string.c (rb_str_insert): new method. * parse.y (yylex): lex_state after RESCUE_MOD should be EXPR_BEG. * array.c (rb_ary_insert): new method. * array.c (rb_ary_update): new utility function. * io.c (set_outfile): should check if closed before assignment. * eval.c (rb_eval): should preserve value of ruby_errinfo. * eval.c (rb_thread_schedule): infinite sleep should not cause dead lock. * array.c (rb_ary_flatten_bang): proper recursive detection. * eval.c (yield_under): need not to prohibit at safe level 4. * pack.c (pack_pack): p/P packs nil into NULL. * pack.c (pack_unpack): p/P unpacks NULL into nil. * pack.c (pack_pack): size check for P template. * ruby.c (set_arg0): wrong predicate when new $0 value is bigger than original space. * gc.c (id2ref): should use NUM2ULONG() * object.c (rb_mod_const_get): check whether name is a class variable name. * object.c (rb_mod_const_set): ditto. * object.c (rb_mod_const_defined): ditto. * marshal.c (w_float): precision changed to "%.16g" * eval.c (rb_call0): wrong retry behavior. * numeric.c (fix_aref): a bug on long>int architecture. * eval.c (rb_eval_string_wrap): should restore ruby_wrapper. * regex.c (re_compile_pattern): char class at either edge of range should be invalid. * eval.c (handle_rescue): use === to compare exception match. * error.c (syserr_eqq): comparison between SytemCallErrors should based on their error numbers. * eval.c (safe_getter): should use INT2NUM(). * bignum.c (rb_big2long): 2**31 cannot fit in 31 bit long. * regex.c (calculate_must_string): wrong length calculation. * eval.c (rb_thread_start_0): fixed memory leak. * parse.y (none): should clear cmdarg_stack too. * io.c (rb_fopen): use setvbuf() to avoid recursive malloc() on some platforms. * file.c (rb_stat_dev): device functions should honor stat field types (except long long such as dev_t). * eval.c (rb_mod_nesting): should not push nil for nesting array. * eval.c (rb_mod_s_constants): should not search array by rb_mod_const_at() for nil (happens for singleton class). * class.c (rb_singleton_class_attached): should modify iv_tbl by itself, no longer use rb_iv_set() to avoid freeze check error. * variable.c (rb_const_get): error message "uninitialized constant Foo at Bar::Baz" instead of "uninitialized constantBar::Baz::Foo". * eval.c (rb_mod_included): new hook called from rb_mod_include(). * io.c (opt_i_set): should strdup() inplace_edit string. * eval.c (exec_under): need to push cref too. * eval.c (rb_f_missing): raise NameError for "undefined local variable or method". * error.c (Init_Exception): new exception NoMethodError. NameError moved under ScriptError again. * eval.c (rb_f_missing): use NoMethodError instead of NameError. * file.c (Init_File): should redifine "new" class method. * eval.c (PUSH_CREF): sharing cref node was problematic. maintain runtime cref list instead. * eval.c (rb_eval): copy defn node before registering. * eval.c (rb_load): clear ruby_cref before loading. * variable.c (rb_const_get): no recursion to show full class path for modules. * eval.c (rb_set_safe_level): should set safe level in curr_thread as well. * eval.c (safe_setter): ditto. * object.c (rb_obj_is_instance_of): nil belongs to false, not true. * time.c (make_time_t): proper (I hope) daylight saving time handling for both US and Europe. I HATE DST! * eval.c (rb_thread_wait_for): non blocked signal interrupt should stop the interval. * eval.c (proc_eq): class check aded. * eval.c (proc_eq): typo fixed ("return" was ommitted). * error.c (Init_Exception): move NameError under StandardError. * class.c (rb_mod_clone): should copy method bodies too. * bignum.c (bigdivrem): should trim trailing zero bdigits of remainder, even if dd == 0. * file.c (check3rdbyte): safe string check moved here. * time.c (make_time_t): remove HAVE_TM_ZONE code since it sometimes reports wrong time. * time.c (make_time_t): remove unnecessary range check for platforms where negative time_t is available. * process.c (proc_waitall): should push Process::Status instead of Finuxm status. * process.c (waitall_each): should add all entries in pid_tbl. these changes are inspired by Koji Arai. Thanks. * process.c (proc_wait): should not iterate if pid_tbl is 0. * process.c (proc_waitall): ditto. * numeric.c (flodivmod): a bug in no fmod case. * process.c (pst_wifsignaled): should apply WIFSIGNALED for status (int), not st (VALUE). * io.c (Init_IO): value of $/ and $\ are no longer restricted to strings. type checks are done on demand. * class.c (rb_include_module): module inclusion should be check taints. * ruby.h (STR2CSTR): replace to StringType() and StringTypePtr(). * ruby.h (rb_str2cstr): ditto. * eval.c (rb_load): should not copy topleve local variables. It cause variable/method ambiguity. Thanks to L. Peter Deutsch. * class.c (rb_include_module): freeze check at first. * eval.c (rb_attr): sprintf() and rb_intern() moved into conditional body. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-05-02 00:22:21 -04:00
}
rb_cvar_set(klass, id, val);
}
VALUE
rb_cv_get(VALUE klass, const char *name)
{
* eval.c (block_pass): should not downgrade safe level. * ext/dbm/extconf.rb: allow specifying dbm-type explicitly. * ext/dbm/extconf.rb: avoid gdbm if possible, because it leaks memory, whereas gdbm.so doesn't. potential incompatibility. * string.c (rb_str_insert): new method. * parse.y (yylex): lex_state after RESCUE_MOD should be EXPR_BEG. * array.c (rb_ary_insert): new method. * array.c (rb_ary_update): new utility function. * io.c (set_outfile): should check if closed before assignment. * eval.c (rb_eval): should preserve value of ruby_errinfo. * eval.c (rb_thread_schedule): infinite sleep should not cause dead lock. * array.c (rb_ary_flatten_bang): proper recursive detection. * eval.c (yield_under): need not to prohibit at safe level 4. * pack.c (pack_pack): p/P packs nil into NULL. * pack.c (pack_unpack): p/P unpacks NULL into nil. * pack.c (pack_pack): size check for P template. * ruby.c (set_arg0): wrong predicate when new $0 value is bigger than original space. * gc.c (id2ref): should use NUM2ULONG() * object.c (rb_mod_const_get): check whether name is a class variable name. * object.c (rb_mod_const_set): ditto. * object.c (rb_mod_const_defined): ditto. * marshal.c (w_float): precision changed to "%.16g" * eval.c (rb_call0): wrong retry behavior. * numeric.c (fix_aref): a bug on long>int architecture. * eval.c (rb_eval_string_wrap): should restore ruby_wrapper. * regex.c (re_compile_pattern): char class at either edge of range should be invalid. * eval.c (handle_rescue): use === to compare exception match. * error.c (syserr_eqq): comparison between SytemCallErrors should based on their error numbers. * eval.c (safe_getter): should use INT2NUM(). * bignum.c (rb_big2long): 2**31 cannot fit in 31 bit long. * regex.c (calculate_must_string): wrong length calculation. * eval.c (rb_thread_start_0): fixed memory leak. * parse.y (none): should clear cmdarg_stack too. * io.c (rb_fopen): use setvbuf() to avoid recursive malloc() on some platforms. * file.c (rb_stat_dev): device functions should honor stat field types (except long long such as dev_t). * eval.c (rb_mod_nesting): should not push nil for nesting array. * eval.c (rb_mod_s_constants): should not search array by rb_mod_const_at() for nil (happens for singleton class). * class.c (rb_singleton_class_attached): should modify iv_tbl by itself, no longer use rb_iv_set() to avoid freeze check error. * variable.c (rb_const_get): error message "uninitialized constant Foo at Bar::Baz" instead of "uninitialized constantBar::Baz::Foo". * eval.c (rb_mod_included): new hook called from rb_mod_include(). * io.c (opt_i_set): should strdup() inplace_edit string. * eval.c (exec_under): need to push cref too. * eval.c (rb_f_missing): raise NameError for "undefined local variable or method". * error.c (Init_Exception): new exception NoMethodError. NameError moved under ScriptError again. * eval.c (rb_f_missing): use NoMethodError instead of NameError. * file.c (Init_File): should redifine "new" class method. * eval.c (PUSH_CREF): sharing cref node was problematic. maintain runtime cref list instead. * eval.c (rb_eval): copy defn node before registering. * eval.c (rb_load): clear ruby_cref before loading. * variable.c (rb_const_get): no recursion to show full class path for modules. * eval.c (rb_set_safe_level): should set safe level in curr_thread as well. * eval.c (safe_setter): ditto. * object.c (rb_obj_is_instance_of): nil belongs to false, not true. * time.c (make_time_t): proper (I hope) daylight saving time handling for both US and Europe. I HATE DST! * eval.c (rb_thread_wait_for): non blocked signal interrupt should stop the interval. * eval.c (proc_eq): class check aded. * eval.c (proc_eq): typo fixed ("return" was ommitted). * error.c (Init_Exception): move NameError under StandardError. * class.c (rb_mod_clone): should copy method bodies too. * bignum.c (bigdivrem): should trim trailing zero bdigits of remainder, even if dd == 0. * file.c (check3rdbyte): safe string check moved here. * time.c (make_time_t): remove HAVE_TM_ZONE code since it sometimes reports wrong time. * time.c (make_time_t): remove unnecessary range check for platforms where negative time_t is available. * process.c (proc_waitall): should push Process::Status instead of Finuxm status. * process.c (waitall_each): should add all entries in pid_tbl. these changes are inspired by Koji Arai. Thanks. * process.c (proc_wait): should not iterate if pid_tbl is 0. * process.c (proc_waitall): ditto. * numeric.c (flodivmod): a bug in no fmod case. * process.c (pst_wifsignaled): should apply WIFSIGNALED for status (int), not st (VALUE). * io.c (Init_IO): value of $/ and $\ are no longer restricted to strings. type checks are done on demand. * class.c (rb_include_module): module inclusion should be check taints. * ruby.h (STR2CSTR): replace to StringType() and StringTypePtr(). * ruby.h (rb_str2cstr): ditto. * eval.c (rb_load): should not copy topleve local variables. It cause variable/method ambiguity. Thanks to L. Peter Deutsch. * class.c (rb_include_module): freeze check at first. * eval.c (rb_attr): sprintf() and rb_intern() moved into conditional body. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-05-02 00:22:21 -04:00
ID id = rb_intern(name);
if (!rb_is_class_id(id)) {
* error.c (exc_exception): clone the receiver exception instead of creating brand new exception object of the receiver. * eval.c (rb_eval_string_wrap): extend new ruby_top_self, not original self. * eval.c (rb_eval_cmd): respect ruby_wrapper if set. * eval.c (eval): do not update ruby_class unless scope is not provided. * eval.c (eval): preserve wrapper information. * eval.c (proc_invoke): ditto. * eval.c (block_pass): ditto. * parse.y (void_expr): too much warnings for void context (e.g. foo[1] that can be mere Proc call). * error.c (rb_name_error): new function to raise NameError with name attribute set. * eval.c (rb_f_missing): set name and args in the exception object. [new] * error.c (name_name): NameError#name - new method. * error.c (nometh_args): NoMethodError#args - new method. * lex.c (rb_reserved_word): lex_state after tRESCUE should be EXPR_MID. * gc.c (add_heap): allocation size of the heap unit is doubled for each allocation. * dir.c (isdelim): space, tab, and newline are no longer delimiters for glob patterns. * eval.c (svalue_to_avalue): new conversion scheme between single value and array values. * eval.c (avalue_to_svalue): ditto. * eval.c (rb_eval): REXPAND now uses avalue_to_svalue(), return and yield too. * eval.c (rb_yield_0): use avalue_to_svalue(). * eval.c (proc_invoke): Proc#call gives avaules, whereas Proc#yield gives mvalues. * eval.c (bmcall): convert given value (svalue) to avalue. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1555 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2001-07-02 04:46:28 -04:00
rb_name_error(id, "wrong class variable name %s", name);
* eval.c (block_pass): should not downgrade safe level. * ext/dbm/extconf.rb: allow specifying dbm-type explicitly. * ext/dbm/extconf.rb: avoid gdbm if possible, because it leaks memory, whereas gdbm.so doesn't. potential incompatibility. * string.c (rb_str_insert): new method. * parse.y (yylex): lex_state after RESCUE_MOD should be EXPR_BEG. * array.c (rb_ary_insert): new method. * array.c (rb_ary_update): new utility function. * io.c (set_outfile): should check if closed before assignment. * eval.c (rb_eval): should preserve value of ruby_errinfo. * eval.c (rb_thread_schedule): infinite sleep should not cause dead lock. * array.c (rb_ary_flatten_bang): proper recursive detection. * eval.c (yield_under): need not to prohibit at safe level 4. * pack.c (pack_pack): p/P packs nil into NULL. * pack.c (pack_unpack): p/P unpacks NULL into nil. * pack.c (pack_pack): size check for P template. * ruby.c (set_arg0): wrong predicate when new $0 value is bigger than original space. * gc.c (id2ref): should use NUM2ULONG() * object.c (rb_mod_const_get): check whether name is a class variable name. * object.c (rb_mod_const_set): ditto. * object.c (rb_mod_const_defined): ditto. * marshal.c (w_float): precision changed to "%.16g" * eval.c (rb_call0): wrong retry behavior. * numeric.c (fix_aref): a bug on long>int architecture. * eval.c (rb_eval_string_wrap): should restore ruby_wrapper. * regex.c (re_compile_pattern): char class at either edge of range should be invalid. * eval.c (handle_rescue): use === to compare exception match. * error.c (syserr_eqq): comparison between SytemCallErrors should based on their error numbers. * eval.c (safe_getter): should use INT2NUM(). * bignum.c (rb_big2long): 2**31 cannot fit in 31 bit long. * regex.c (calculate_must_string): wrong length calculation. * eval.c (rb_thread_start_0): fixed memory leak. * parse.y (none): should clear cmdarg_stack too. * io.c (rb_fopen): use setvbuf() to avoid recursive malloc() on some platforms. * file.c (rb_stat_dev): device functions should honor stat field types (except long long such as dev_t). * eval.c (rb_mod_nesting): should not push nil for nesting array. * eval.c (rb_mod_s_constants): should not search array by rb_mod_const_at() for nil (happens for singleton class). * class.c (rb_singleton_class_attached): should modify iv_tbl by itself, no longer use rb_iv_set() to avoid freeze check error. * variable.c (rb_const_get): error message "uninitialized constant Foo at Bar::Baz" instead of "uninitialized constantBar::Baz::Foo". * eval.c (rb_mod_included): new hook called from rb_mod_include(). * io.c (opt_i_set): should strdup() inplace_edit string. * eval.c (exec_under): need to push cref too. * eval.c (rb_f_missing): raise NameError for "undefined local variable or method". * error.c (Init_Exception): new exception NoMethodError. NameError moved under ScriptError again. * eval.c (rb_f_missing): use NoMethodError instead of NameError. * file.c (Init_File): should redifine "new" class method. * eval.c (PUSH_CREF): sharing cref node was problematic. maintain runtime cref list instead. * eval.c (rb_eval): copy defn node before registering. * eval.c (rb_load): clear ruby_cref before loading. * variable.c (rb_const_get): no recursion to show full class path for modules. * eval.c (rb_set_safe_level): should set safe level in curr_thread as well. * eval.c (safe_setter): ditto. * object.c (rb_obj_is_instance_of): nil belongs to false, not true. * time.c (make_time_t): proper (I hope) daylight saving time handling for both US and Europe. I HATE DST! * eval.c (rb_thread_wait_for): non blocked signal interrupt should stop the interval. * eval.c (proc_eq): class check aded. * eval.c (proc_eq): typo fixed ("return" was ommitted). * error.c (Init_Exception): move NameError under StandardError. * class.c (rb_mod_clone): should copy method bodies too. * bignum.c (bigdivrem): should trim trailing zero bdigits of remainder, even if dd == 0. * file.c (check3rdbyte): safe string check moved here. * time.c (make_time_t): remove HAVE_TM_ZONE code since it sometimes reports wrong time. * time.c (make_time_t): remove unnecessary range check for platforms where negative time_t is available. * process.c (proc_waitall): should push Process::Status instead of Finuxm status. * process.c (waitall_each): should add all entries in pid_tbl. these changes are inspired by Koji Arai. Thanks. * process.c (proc_wait): should not iterate if pid_tbl is 0. * process.c (proc_waitall): ditto. * numeric.c (flodivmod): a bug in no fmod case. * process.c (pst_wifsignaled): should apply WIFSIGNALED for status (int), not st (VALUE). * io.c (Init_IO): value of $/ and $\ are no longer restricted to strings. type checks are done on demand. * class.c (rb_include_module): module inclusion should be check taints. * ruby.h (STR2CSTR): replace to StringType() and StringTypePtr(). * ruby.h (rb_str2cstr): ditto. * eval.c (rb_load): should not copy topleve local variables. It cause variable/method ambiguity. Thanks to L. Peter Deutsch. * class.c (rb_include_module): freeze check at first. * eval.c (rb_attr): sprintf() and rb_intern() moved into conditional body. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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}
return rb_cvar_get(klass, id);
}
void
rb_define_class_variable(VALUE klass, const char *name, VALUE val)
{
ID id = rb_intern(name);
if (!rb_is_class_id(id)) {
* error.c (exc_exception): clone the receiver exception instead of creating brand new exception object of the receiver. * eval.c (rb_eval_string_wrap): extend new ruby_top_self, not original self. * eval.c (rb_eval_cmd): respect ruby_wrapper if set. * eval.c (eval): do not update ruby_class unless scope is not provided. * eval.c (eval): preserve wrapper information. * eval.c (proc_invoke): ditto. * eval.c (block_pass): ditto. * parse.y (void_expr): too much warnings for void context (e.g. foo[1] that can be mere Proc call). * error.c (rb_name_error): new function to raise NameError with name attribute set. * eval.c (rb_f_missing): set name and args in the exception object. [new] * error.c (name_name): NameError#name - new method. * error.c (nometh_args): NoMethodError#args - new method. * lex.c (rb_reserved_word): lex_state after tRESCUE should be EXPR_MID. * gc.c (add_heap): allocation size of the heap unit is doubled for each allocation. * dir.c (isdelim): space, tab, and newline are no longer delimiters for glob patterns. * eval.c (svalue_to_avalue): new conversion scheme between single value and array values. * eval.c (avalue_to_svalue): ditto. * eval.c (rb_eval): REXPAND now uses avalue_to_svalue(), return and yield too. * eval.c (rb_yield_0): use avalue_to_svalue(). * eval.c (proc_invoke): Proc#call gives avaules, whereas Proc#yield gives mvalues. * eval.c (bmcall): convert given value (svalue) to avalue. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1555 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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rb_name_error(id, "wrong class variable name %s", name);
}
rb_cvar_set(klass, id, val);
}
static int
cv_i(st_data_t k, st_data_t v, st_data_t a)
{
ID key = (ID)k;
st_table *tbl = (st_table *)a;
if (rb_is_class_id(key)) {
if (!st_lookup(tbl, (st_data_t)key, 0)) {
st_insert(tbl, (st_data_t)key, 0);
}
}
return ST_CONTINUE;
}
static void*
mod_cvar_at(VALUE mod, void *data)
{
st_table *tbl = data;
if (!tbl) {
tbl = st_init_numtable();
}
if (RCLASS_IV_TBL(mod)) {
st_foreach_safe(RCLASS_IV_TBL(mod), cv_i, (st_data_t)tbl);
}
return tbl;
}
static void*
mod_cvar_of(VALUE mod, void *data)
{
VALUE tmp = mod;
for (;;) {
data = mod_cvar_at(tmp, data);
tmp = RCLASS_SUPER(tmp);
if (!tmp) break;
}
return data;
}
static int
cv_list_i(st_data_t key, st_data_t value, VALUE ary)
{
ID sym = (ID)key;
rb_ary_push(ary, ID2SYM(sym));
return ST_CONTINUE;
}
static VALUE
cvar_list(void *data)
{
st_table *tbl = data;
VALUE ary;
if (!tbl) return rb_ary_new2(0);
ary = rb_ary_new2(tbl->num_entries);
st_foreach_safe(tbl, cv_list_i, ary);
st_free_table(tbl);
return ary;
}
/*
* call-seq:
* mod.class_variables(inherit=true) -> array
*
* Returns an array of the names of class variables in <i>mod</i>.
* This includes the names of class variables in any included
* modules, unless the <i>inherit</i> parameter is set to
* <code>false</code>.
*
* class One
* @@var1 = 1
* end
* class Two < One
* @@var2 = 2
* end
* One.class_variables #=> [:@@var1]
* Two.class_variables #=> [:@@var2, :@@var1]
*/
VALUE
rb_mod_class_variables(int argc, VALUE *argv, VALUE mod)
{
VALUE inherit;
st_table *tbl;
if (argc == 0) {
inherit = Qtrue;
}
else {
rb_scan_args(argc, argv, "01", &inherit);
}
if (RTEST(inherit)) {
tbl = mod_cvar_of(mod, 0);
}
else {
tbl = mod_cvar_at(mod, 0);
}
return cvar_list(tbl);
}
/*
* call-seq:
* remove_class_variable(sym) -> obj
*
* Removes the definition of the <i>sym</i>, returning that
* constant's value.
*
* class Dummy
* @@var = 99
* puts @@var
* remove_class_variable(:@@var)
* p(defined? @@var)
* end
*
* <em>produces:</em>
*
* 99
* nil
*/
VALUE
rb_mod_remove_cvar(VALUE mod, VALUE name)
{
const ID id = rb_check_id(&name);
st_data_t val, n = id;
if (!id) {
if (rb_is_class_name(name)) {
rb_name_error_str(name, "class variable %"PRIsVALUE" not defined for %"PRIsVALUE"",
name, rb_class_name(mod));
}
else {
rb_name_error_str(name, "wrong class variable name %"PRIsVALUE"", QUOTE(name));
}
}
if (!rb_is_class_id(id)) {
rb_name_error(id, "wrong class variable name %"PRIsVALUE"", QUOTE_ID(id));
}
rb_check_frozen(mod);
if (RCLASS_IV_TBL(mod) && st_delete(RCLASS_IV_TBL(mod), &n, &val)) {
return (VALUE)val;
}
if (rb_cvar_defined(mod, id)) {
rb_name_error(id, "cannot remove %"PRIsVALUE" for %"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(mod));
}
rb_name_error(id, "class variable %"PRIsVALUE" not defined for %"PRIsVALUE"",
QUOTE_ID(id), rb_class_name(mod));
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UNREACHABLE;
}
VALUE
rb_iv_get(VALUE obj, const char *name)
{
ID id = rb_intern(name);
return rb_ivar_get(obj, id);
}
VALUE
rb_iv_set(VALUE obj, const char *name, VALUE val)
{
ID id = rb_intern(name);
return rb_ivar_set(obj, id, val);
}
/* tbl = xx(obj); tbl[key] = value; */
int
rb_st_insert_id_and_value(VALUE obj, st_table *tbl, ID key, VALUE value)
{
int result = st_insert(tbl, (st_data_t)key, (st_data_t)value);
OBJ_WRITTEN(obj, Qundef, value);
return result;
}
static int
tbl_copy_i(st_data_t key, st_data_t value, st_data_t data)
{
OBJ_WRITTEN((VALUE)data, Qundef, (VALUE)value);
return ST_CONTINUE;
}
st_table *
rb_st_copy(VALUE obj, struct st_table *orig_tbl)
{
st_table *new_tbl = st_copy(orig_tbl);
st_foreach(new_tbl, tbl_copy_i, (st_data_t)obj);
return new_tbl;
}