Ruby  3.4.0dev (2024-11-22 revision 37a72b0150ec36b4ea27175039afc28c62207b0c)
Macros | Enumerations | Functions
fl_type.h File Reference

(37a72b0150ec36b4ea27175039afc28c62207b0c)

Defines enum ruby_fl_type. More...

#include "ruby/internal/config.h"
#include "ruby/internal/attr/artificial.h"
#include "ruby/internal/attr/deprecated.h"
#include "ruby/internal/attr/flag_enum.h"
#include "ruby/internal/attr/forceinline.h"
#include "ruby/internal/attr/noalias.h"
#include "ruby/internal/attr/pure.h"
#include "ruby/internal/cast.h"
#include "ruby/internal/compiler_since.h"
#include "ruby/internal/core/rbasic.h"
#include "ruby/internal/dllexport.h"
#include "ruby/internal/has/extension.h"
#include "ruby/internal/special_consts.h"
#include "ruby/internal/stdbool.h"
#include "ruby/internal/value.h"
#include "ruby/internal/value_type.h"
#include "ruby/assert.h"
#include "ruby/defines.h"
Include dependency graph for fl_type.h:
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Go to the source code of this file.

Macros

#define FL_SINGLETON   RBIMPL_CAST((VALUE)RUBY_FL_SINGLETON)
 Old name of RUBY_FL_SINGLETON. More...
 
#define FL_WB_PROTECTED   RBIMPL_CAST((VALUE)RUBY_FL_WB_PROTECTED)
 Old name of RUBY_FL_WB_PROTECTED. More...
 
#define FL_PROMOTED   RBIMPL_CAST((VALUE)RUBY_FL_PROMOTED)
 Old name of RUBY_FL_PROMOTED. More...
 
#define FL_FINALIZE   RBIMPL_CAST((VALUE)RUBY_FL_FINALIZE)
 Old name of RUBY_FL_FINALIZE. More...
 
#define FL_TAINT   RBIMPL_CAST((VALUE)RUBY_FL_TAINT)
 Old name of RUBY_FL_TAINT. More...
 
#define FL_SHAREABLE   RBIMPL_CAST((VALUE)RUBY_FL_SHAREABLE)
 Old name of RUBY_FL_SHAREABLE. More...
 
#define FL_UNTRUSTED   RBIMPL_CAST((VALUE)RUBY_FL_UNTRUSTED)
 Old name of RUBY_FL_UNTRUSTED. More...
 
#define FL_SEEN_OBJ_ID   RBIMPL_CAST((VALUE)RUBY_FL_SEEN_OBJ_ID)
 Old name of RUBY_FL_SEEN_OBJ_ID. More...
 
#define FL_EXIVAR   RBIMPL_CAST((VALUE)RUBY_FL_EXIVAR)
 Old name of RUBY_FL_EXIVAR. More...
 
#define FL_FREEZE   RBIMPL_CAST((VALUE)RUBY_FL_FREEZE)
 Old name of RUBY_FL_FREEZE. More...
 
#define FL_USHIFT   RBIMPL_CAST((VALUE)RUBY_FL_USHIFT)
 Old name of RUBY_FL_USHIFT. More...
 
#define FL_USER0   RBIMPL_CAST((VALUE)RUBY_FL_USER0)
 Old name of RUBY_FL_USER0. More...
 
#define FL_USER1   RBIMPL_CAST((VALUE)RUBY_FL_USER1)
 Old name of RUBY_FL_USER1. More...
 
#define FL_USER2   RBIMPL_CAST((VALUE)RUBY_FL_USER2)
 Old name of RUBY_FL_USER2. More...
 
#define FL_USER3   RBIMPL_CAST((VALUE)RUBY_FL_USER3)
 Old name of RUBY_FL_USER3. More...
 
#define FL_USER4   RBIMPL_CAST((VALUE)RUBY_FL_USER4)
 Old name of RUBY_FL_USER4. More...
 
#define FL_USER5   RBIMPL_CAST((VALUE)RUBY_FL_USER5)
 Old name of RUBY_FL_USER5. More...
 
#define FL_USER6   RBIMPL_CAST((VALUE)RUBY_FL_USER6)
 Old name of RUBY_FL_USER6. More...
 
#define FL_USER7   RBIMPL_CAST((VALUE)RUBY_FL_USER7)
 Old name of RUBY_FL_USER7. More...
 
#define FL_USER8   RBIMPL_CAST((VALUE)RUBY_FL_USER8)
 Old name of RUBY_FL_USER8. More...
 
#define FL_USER9   RBIMPL_CAST((VALUE)RUBY_FL_USER9)
 Old name of RUBY_FL_USER9. More...
 
#define FL_USER10   RBIMPL_CAST((VALUE)RUBY_FL_USER10)
 Old name of RUBY_FL_USER10. More...
 
#define FL_USER11   RBIMPL_CAST((VALUE)RUBY_FL_USER11)
 Old name of RUBY_FL_USER11. More...
 
#define FL_USER12   RBIMPL_CAST((VALUE)RUBY_FL_USER12)
 Old name of RUBY_FL_USER12. More...
 
#define FL_USER13   RBIMPL_CAST((VALUE)RUBY_FL_USER13)
 Old name of RUBY_FL_USER13. More...
 
#define FL_USER14   RBIMPL_CAST((VALUE)RUBY_FL_USER14)
 Old name of RUBY_FL_USER14. More...
 
#define FL_USER15   RBIMPL_CAST((VALUE)RUBY_FL_USER15)
 Old name of RUBY_FL_USER15. More...
 
#define FL_USER16   RBIMPL_CAST((VALUE)RUBY_FL_USER16)
 Old name of RUBY_FL_USER16. More...
 
#define FL_USER17   RBIMPL_CAST((VALUE)RUBY_FL_USER17)
 Old name of RUBY_FL_USER17. More...
 
#define FL_USER18   RBIMPL_CAST((VALUE)RUBY_FL_USER18)
 Old name of RUBY_FL_USER18. More...
 
#define FL_USER19   RBIMPL_CAST((VALUE)(unsigned int)RUBY_FL_USER19)
 Old name of RUBY_FL_USER19. More...
 
#define ELTS_SHARED   RUBY_ELTS_SHARED
 Old name of RUBY_ELTS_SHARED. More...
 
#define RB_OBJ_FREEZE   rb_obj_freeze_inline
 Just another name of rb_obj_freeze_inline. More...
 
#define FL_ABLE   RB_FL_ABLE
 Old name of RB_FL_ABLE. More...
 
#define FL_ALL   RB_FL_ALL
 Old name of RB_FL_ALL. More...
 
#define FL_ALL_RAW   RB_FL_ALL_RAW
 Old name of RB_FL_ALL_RAW. More...
 
#define FL_ANY   RB_FL_ANY
 Old name of RB_FL_ANY. More...
 
#define FL_ANY_RAW   RB_FL_ANY_RAW
 Old name of RB_FL_ANY_RAW. More...
 
#define FL_REVERSE   RB_FL_REVERSE
 Old name of RB_FL_REVERSE. More...
 
#define FL_REVERSE_RAW   RB_FL_REVERSE_RAW
 Old name of RB_FL_REVERSE_RAW. More...
 
#define FL_SET   RB_FL_SET
 Old name of RB_FL_SET. More...
 
#define FL_SET_RAW   RB_FL_SET_RAW
 Old name of RB_FL_SET_RAW. More...
 
#define FL_TEST   RB_FL_TEST
 Old name of RB_FL_TEST. More...
 
#define FL_TEST_RAW   RB_FL_TEST_RAW
 Old name of RB_FL_TEST_RAW. More...
 
#define FL_UNSET   RB_FL_UNSET
 Old name of RB_FL_UNSET. More...
 
#define FL_UNSET_RAW   RB_FL_UNSET_RAW
 Old name of RB_FL_UNSET_RAW. More...
 
#define OBJ_FREEZE   RB_OBJ_FREEZE
 Old name of RB_OBJ_FREEZE. More...
 
#define OBJ_FREEZE_RAW   RB_OBJ_FREEZE_RAW
 Old name of RB_OBJ_FREEZE_RAW. More...
 
#define OBJ_FROZEN   RB_OBJ_FROZEN
 Old name of RB_OBJ_FROZEN. More...
 
#define OBJ_FROZEN_RAW   RB_OBJ_FROZEN_RAW
 Old name of RB_OBJ_FROZEN_RAW. More...
 
#define OBJ_INFECT   RB_OBJ_INFECT
 Old name of RB_OBJ_INFECT. More...
 
#define OBJ_INFECT_RAW   RB_OBJ_INFECT_RAW
 Old name of RB_OBJ_INFECT_RAW. More...
 
#define OBJ_TAINT   RB_OBJ_TAINT
 Old name of RB_OBJ_TAINT. More...
 
#define OBJ_TAINTABLE   RB_OBJ_TAINTABLE
 Old name of RB_OBJ_TAINT_RAW. More...
 
#define OBJ_TAINTED   RB_OBJ_TAINTED
 Old name of RB_OBJ_TAINTED. More...
 
#define OBJ_TAINTED_RAW   RB_OBJ_TAINTED_RAW
 Old name of RB_OBJ_TAINTED_RAW. More...
 
#define OBJ_TAINT_RAW   RB_OBJ_TAINT_RAW
 Old name of RB_OBJ_TAINT_RAW. More...
 
#define OBJ_UNTRUST   RB_OBJ_UNTRUST
 Old name of RB_OBJ_TAINT. More...
 
#define OBJ_UNTRUSTED   RB_OBJ_UNTRUSTED
 Old name of RB_OBJ_TAINTED. More...
 
#define RBIMPL_FL_USER_N(n)   RUBY_FL_USER##n = (1<<(RUBY_FL_USHIFT+n))
 (@shyouhei doesn't know how to excude this macro from doxygen). More...
 

Enumerations

enum  ruby_fl_ushift { RUBY_FL_USHIFT = 12 }
 This is an enum because GDB wants it (rather than a macro). More...
 
enum  ruby_fl_type {
  RUBY_FL_WB_PROTECTED = (1<<5) , RUBY_FL_PROMOTED = (1<<5) , RUBY_FL_UNUSED6 = (1<<6) , RUBY_FL_FINALIZE = (1<<7) ,
  RUBY_FL_TAINT = 0 , RUBY_FL_SHAREABLE = (1<<8) , RUBY_FL_UNTRUSTED = 0 , RUBY_FL_SEEN_OBJ_ID = (1<<9) ,
  RUBY_FL_EXIVAR = (1<<10) , RUBY_FL_FREEZE = (1<<11) , RUBY_FL_USER0 = (1<<(RUBY_FL_USHIFT+ 0 )) , RUBY_FL_USER1 = (1<<(RUBY_FL_USHIFT+ 1 )) ,
  RUBY_FL_USER2 = (1<<(RUBY_FL_USHIFT+ 2 )) , RUBY_FL_USER3 = (1<<(RUBY_FL_USHIFT+ 3 )) , RUBY_FL_USER4 = (1<<(RUBY_FL_USHIFT+ 4 )) , RUBY_FL_USER5 = (1<<(RUBY_FL_USHIFT+ 5 )) ,
  RUBY_FL_USER6 = (1<<(RUBY_FL_USHIFT+ 6 )) , RUBY_FL_USER7 = (1<<(RUBY_FL_USHIFT+ 7 )) , RUBY_FL_USER8 = (1<<(RUBY_FL_USHIFT+ 8 )) , RUBY_FL_USER9 = (1<<(RUBY_FL_USHIFT+ 9 )) ,
  RUBY_FL_USER10 = (1<<(RUBY_FL_USHIFT+ 10 )) , RUBY_FL_USER11 = (1<<(RUBY_FL_USHIFT+ 11 )) , RUBY_FL_USER12 = (1<<(RUBY_FL_USHIFT+ 12 )) , RUBY_FL_USER13 = (1<<(RUBY_FL_USHIFT+ 13 )) ,
  RUBY_FL_USER14 = (1<<(RUBY_FL_USHIFT+ 14 )) , RUBY_FL_USER15 = (1<<(RUBY_FL_USHIFT+ 15 )) , RUBY_FL_USER16 = (1<<(RUBY_FL_USHIFT+ 16 )) , RUBY_FL_USER17 = (1<<(RUBY_FL_USHIFT+ 17 )) ,
  RUBY_FL_USER18 = (1<<(RUBY_FL_USHIFT+ 18 )) , RUBY_FL_USER19 = (1<<(RUBY_FL_USHIFT+ 19 )) , RUBY_ELTS_SHARED = RUBY_FL_USER0 , RUBY_FL_SINGLETON = RUBY_FL_USER1
}
 The flags. More...
 
enum  { RUBY_FL_DUPPED = (int)RUBY_T_MASK | (int)RUBY_FL_EXIVAR }
 

Functions

void rb_freeze_singleton_class (VALUE klass)
 This is an implementation detail of RB_OBJ_FREEZE(). More...
 
static bool RB_FL_ABLE (VALUE obj)
 Checks if the object is flaggable. More...
 
static VALUE RB_FL_TEST_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_TEST(). More...
 
static VALUE RB_FL_TEST (VALUE obj, VALUE flags)
 Tests if the given flag(s) are set or not. More...
 
static bool RB_FL_ANY_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_ANY(). More...
 
static bool RB_FL_ANY (VALUE obj, VALUE flags)
 Identical to RB_FL_TEST(), except it returns bool. More...
 
static bool RB_FL_ALL_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_ALL(). More...
 
static bool RB_FL_ALL (VALUE obj, VALUE flags)
 Identical to RB_FL_ANY(), except it mandates all passed flags be set. More...
 
static void RB_FL_SET_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_SET(). More...
 
static void RB_FL_SET (VALUE obj, VALUE flags)
 Sets the given flag(s). More...
 
static void RB_FL_UNSET_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_UNSET(). More...
 
static void RB_FL_UNSET (VALUE obj, VALUE flags)
 Clears the given flag(s). More...
 
static void RB_FL_REVERSE_RAW (VALUE obj, VALUE flags)
 This is an implementation detail of RB_FL_REVERSE(). More...
 
static void RB_FL_REVERSE (VALUE obj, VALUE flags)
 Reverses the flags. More...
 
static bool RB_OBJ_TAINTABLE (VALUE obj)
 
static VALUE RB_OBJ_TAINTED_RAW (VALUE obj)
 
static bool RB_OBJ_TAINTED (VALUE obj)
 
static void RB_OBJ_TAINT_RAW (VALUE obj)
 
static void RB_OBJ_TAINT (VALUE obj)
 
static void RB_OBJ_INFECT_RAW (VALUE dst, VALUE src)
 
static void RB_OBJ_INFECT (VALUE dst, VALUE src)
 
static VALUE RB_OBJ_FROZEN_RAW (VALUE obj)
 This is an implementation detail of RB_OBJ_FROZEN(). More...
 
static bool RB_OBJ_FROZEN (VALUE obj)
 Checks if an object is frozen. More...
 
void rb_obj_freeze_inline (VALUE obj)
 Prevents further modifications to the given object. More...
 
static void RB_OBJ_FREEZE_RAW (VALUE obj)
 This is an implementation detail of RB_OBJ_FREEZE(). More...
 

Detailed Description

Defines enum ruby_fl_type.

Author
Ruby developers ruby-.nosp@m.core.nosp@m.@ruby.nosp@m.-lan.nosp@m.g.org
Warning
Symbols prefixed with either RBIMPL or rbimpl are implementation details. Don't take them as canon. They could rapidly appear then vanish. The name (path) of this header file is also an implementation detail. Do not expect it to persist at the place it is now. Developers are free to move it anywhere anytime at will.
Note
To ruby-core: remember that this header can be possibly recursively included from extension libraries written in C++. Do not expect for instance __VA_ARGS__ is always available. We assume C99 for ruby itself but we don't assume languages of extension libraries. They could be written in C++98.

Definition in file fl_type.h.

Macro Definition Documentation

◆ RB_OBJ_FREEZE

#define RB_OBJ_FREEZE   rb_obj_freeze_inline

Just another name of rb_obj_freeze_inline.

Definition at line 93 of file fl_type.h.

◆ RBIMPL_FL_USER_N

#define RBIMPL_FL_USER_N (   n)    RUBY_FL_USER##n = (1<<(RUBY_FL_USHIFT+n))

(@shyouhei doesn't know how to excude this macro from doxygen).

Definition at line 327 of file fl_type.h.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
RUBY_FL_DUPPED 
Deprecated:
This flag once was a thing back in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Definition at line 401 of file fl_type.h.

◆ ruby_fl_type

The flags.

Each ruby objects have their own characteristics apart from their classes. For instance whether an object is frozen or not is not controlled by its class. This is the type that represents such properties.

Note
About the FL_USER terminology: the "user" here does not necessarily mean only you. For instance struct RString instances use these bits to cache their encodings etc. Devs discussed about this topic, reached their consensus that RUBY_T_DATA is the only valid data structure that can use these bits; other data structures including RUBY_T_OBJECT use these bits for their own purpose. See also https://bugs.ruby-lang.org/issues/18059
Enumerator
RUBY_FL_WB_PROTECTED 
Deprecated:
This flag once was a thing back in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

RUBY_FL_PROMOTED 

Ruby objects are "generational".

There are young objects & old objects. Young objects are prone to die & monitored relatively extensively by the garbage collector. Old objects tend to live longer & are monitored less frequently. When an object survives a GC, its age is incremented. When age is equal to RVALUE_OLD_AGE, the object becomes Old. This flag is set when an object becomes old, and is used by the write barrier to check if an old object should be considered for marking more frequently - as old objects that have references added between major GCs need to be remarked to prevent the referred object being mistakenly swept.

RUBY_FL_UNUSED6 

This flag is no longer in use.

RUBY_FL_FINALIZE 

This flag has something to do with finalisers.

A ruby object can have its finaliser, which is another object that evaluates when the target object is about to die. This flag is used to denote that there is an attached finaliser.

RUBY_FL_TAINT 
Deprecated:
This flag once was a thing back in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

RUBY_FL_SHAREABLE 

This flag has something to do with Ractor.

Multiple Ractors run without protecting each other. Sharing an object among Ractors are basically dangerous, disabled by default. This flag is used to bypass that restriction. Of course, you have to manually prevent race conditions then.

This flag needs deep understanding of multithreaded programming. You would better not use it.

RUBY_FL_UNTRUSTED 
Deprecated:
This flag once was a thing back in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

RUBY_FL_SEEN_OBJ_ID 

This flag has something to do with object IDs.

Unlike in the old days, an object's object ID (that a user can query using Object#object_id) is no longer its physical address represented using Ruby level integers. It is now a monotonic-increasing integer unrelated to the underlying memory arrangement. Object IDs are assigned when necessary; objects are born without one, and will eventually have such property when queried. The interpreter has to manage which one is which. This is the flag that helps the management. Objects with this flag set are the ones with object IDs assigned.

RUBY_FL_EXIVAR 

This flag has something to do with instance variables.

3rd parties need not know, but there are several ways to store an object's instance variables. Objects with this flag use so-called "generic" backend storage. This distinction is purely an implementation detail. People need not be aware of this working behind-the-scene.

RUBY_FL_FREEZE 

This flag has something to do with data immutability.

When this flag is set an object is considered "frozen". No modification are expected to happen beyond that point for the particular object. Immutability is basically considered to be a good property these days. Library authors are expected to obey. Test this bit before you touch a data structure.

See also
rb_check_frozen()
RUBY_FL_USER0 

User-defined flag.

RUBY_FL_USER1 

User-defined flag.

RUBY_FL_USER2 

User-defined flag.

RUBY_FL_USER3 

User-defined flag.

RUBY_FL_USER4 

User-defined flag.

RUBY_FL_USER5 

User-defined flag.

RUBY_FL_USER6 

User-defined flag.

RUBY_FL_USER7 

User-defined flag.

RUBY_FL_USER8 

User-defined flag.

RUBY_FL_USER9 

User-defined flag.

RUBY_FL_USER10 

User-defined flag.

RUBY_FL_USER11 

User-defined flag.

RUBY_FL_USER12 

User-defined flag.

RUBY_FL_USER13 

User-defined flag.

RUBY_FL_USER14 

User-defined flag.

RUBY_FL_USER15 

User-defined flag.

RUBY_FL_USER16 

User-defined flag.

RUBY_FL_USER17 

User-defined flag.

RUBY_FL_USER18 

User-defined flag.

RUBY_FL_USER19 

User-defined flag.

RUBY_ELTS_SHARED 

This flag has something to do with data structures.

Over time, ruby evolved to reduce memory footprints. One of such attempt is so-called copy-on-write, which delays duplication of resources until ultimately necessary. Some data structures share this scheme. For example multiple instances of struct RArray could point identical memory region in common, as long as they don't differ. As people favour immutable style of programming than before, this situation is getting more and more common. Because such "shared" memory regions have nuanced ownership by nature, each structures need special care for them. This flag is used to distinguish such shared constructs.

RUBY_FL_SINGLETON 

This flag has something to do with an object's class.

There are kind of classes called "singleton class", each of which have exactly one instance. What is interesting about singleton classes is that they are created after their instance were instantiated, like this:

foo = Object.new # foo is an instance of Object...
bar = foo.singleton_class # foo is now an instance of bar.

Here as you see bar is a singleton class of foo, which is injected into foo's inheritance tree in a different statement (== distinct sequence point). In order to achieve this property singleton classes are special-cased in the interpreter. There is one bit flag that distinguishes if a class is a singleton class or not, and this is it.

Definition at line 183 of file fl_type.h.

◆ ruby_fl_ushift

This is an enum because GDB wants it (rather than a macro).

People need not bother.

Enumerator
RUBY_FL_USHIFT 

Number of bits in ruby_fl_type that are not open to users.

This is an implementation detail. Please ignore.

Definition at line 154 of file fl_type.h.

Function Documentation

◆ RB_FL_ABLE()

static bool RB_FL_ABLE ( VALUE  obj)
static

Checks if the object is flaggable.

There are some special cases (most notably RUBY_Qfalse) where appending a flag to an object is not possible. This function can detect that.

Parameters
[in]objObject in question
Return values
trueIt is flaggable.
falseNo it isn't.

Definition at line 444 of file fl_type.h.

Referenced by RB_FL_REVERSE(), RB_FL_REVERSE_RAW(), RB_FL_SET(), RB_FL_SET_RAW(), RB_FL_TEST(), RB_FL_TEST_RAW(), RB_FL_UNSET(), RB_FL_UNSET_RAW(), rb_obj_freeze_inline(), RB_OBJ_FROZEN(), RB_OBJ_PROMOTED(), and RB_OBJ_PROMOTED_RAW().

◆ RB_FL_ALL()

static bool RB_FL_ALL ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Identical to RB_FL_ANY(), except it mandates all passed flags be set.

Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Return values
trueThe object has all of the flags set.
falseThe object lacks any of the flags.

Definition at line 568 of file fl_type.h.

◆ RB_FL_ALL_RAW()

static bool RB_FL_ALL_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_ALL().

3rd parties need not use this. Just always use RB_FL_ALL().

Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Return values
trueThe object has all of the flags set.
falseThe object lacks any of the flags.
Precondition
The object must not be an enum ruby_special_consts.

Definition at line 552 of file fl_type.h.

◆ RB_FL_ANY()

static bool RB_FL_ANY ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Identical to RB_FL_TEST(), except it returns bool.

Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Return values
trueThe object has any of the flags set.
falseNo it doesn't at all.

Definition at line 534 of file fl_type.h.

◆ RB_FL_ANY_RAW()

static bool RB_FL_ANY_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_ANY().

3rd parties need not use this. Just always use RB_FL_ANY().

Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Return values
trueThe object has any of the flags set.
falseNo it doesn't at all.
Precondition
The object must not be an enum ruby_special_consts.

Definition at line 518 of file fl_type.h.

Referenced by RARRAY_EMBED_LEN(), rb_array_len(), and RB_OBJ_PROMOTED_RAW().

◆ RB_FL_REVERSE()

static void RB_FL_REVERSE ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Reverses the flags.

This function is here mainly for symmetry on set/unset. Rarely used in practice.

Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags reversed.

Definition at line 737 of file fl_type.h.

◆ RB_FL_REVERSE_RAW()

static void RB_FL_REVERSE_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_REVERSE().

3rd parties need not use this. Just always use RB_FL_REVERSE().

Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags cleared.

Definition at line 721 of file fl_type.h.

Referenced by RB_FL_REVERSE().

◆ RB_FL_SET()

static void RB_FL_SET ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Sets the given flag(s).

auto v = rb_eval_string("...");
static void RB_FL_SET(VALUE obj, VALUE flags)
Sets the given flag(s).
Definition: fl_type.h:626
@ RUBY_FL_FREEZE
This flag has something to do with data immutability.
Definition: fl_type.h:324
VALUE rb_eval_string(const char *str)
Evaluates the given string.
Definition: vm_eval.c:1975
Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags set.

Definition at line 626 of file fl_type.h.

◆ RB_FL_SET_RAW()

static void RB_FL_SET_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_SET().

3rd parties need not use this. Just always use RB_FL_SET().

Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags set.

Definition at line 606 of file fl_type.h.

Referenced by RB_ENC_CODERANGE_SET(), RB_FL_SET(), and rb_obj_freeze_inline().

◆ RB_FL_TEST()

static VALUE RB_FL_TEST ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Tests if the given flag(s) are set or not.

You can pass multiple flags at once:

auto obj = rb_eval_string("...");
printf("Ractor ready!\n");
}
static VALUE RB_FL_TEST(VALUE obj, VALUE flags)
Tests if the given flag(s) are set or not.
Definition: fl_type.h:495
@ RUBY_FL_SHAREABLE
This flag has something to do with Ractor.
Definition: fl_type.h:266
Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Returns
obj's flags, masked by flags.
Note
It is intentional for this function to return VALUE. The return value could be passed to RB_FL_STE() etc.

Definition at line 495 of file fl_type.h.

Referenced by RB_FL_ALL(), and RB_FL_ANY().

◆ RB_FL_TEST_RAW()

static VALUE RB_FL_TEST_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_TEST().

3rd parties need not use this. Just always use RB_FL_TEST().

Parameters
[in]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Precondition
The object must not be an enum ruby_special_consts.
Returns
obj's flags, masked by flags.

Definition at line 469 of file fl_type.h.

Referenced by RB_ENCODING_GET_INLINED(), RB_FL_ALL_RAW(), RB_FL_ANY_RAW(), RB_FL_TEST(), RB_OBJ_FROZEN_RAW(), and rb_str_new_frozen().

◆ RB_FL_UNSET()

static void RB_FL_UNSET ( VALUE  obj,
VALUE  flags 
)
inlinestatic

Clears the given flag(s).

Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags cleard.

Definition at line 681 of file fl_type.h.

◆ RB_FL_UNSET_RAW()

static void RB_FL_UNSET_RAW ( VALUE  obj,
VALUE  flags 
)
inlinestatic

This is an implementation detail of RB_FL_UNSET().

3rd parties need not use this. Just always use RB_FL_UNSET().

Parameters
[out]objObject in question.
[in]flagsA set of enum ruby_fl_type.
Postcondition
obj has flags cleared.

Definition at line 666 of file fl_type.h.

Referenced by RB_ENC_CODERANGE_AND(), RB_ENC_CODERANGE_SET(), RB_FL_UNSET(), and rb_obj_freeze_inline().

◆ rb_obj_freeze_inline()

void rb_obj_freeze_inline ( VALUE  obj)

Prevents further modifications to the given object.

rb_eFrozenError shall be raised if modification is attempted.

Parameters
[out]xObject in question.
Exceptions
rb_eNoMemErrorFailed to allocate memory for the frozen representation of the object.

Definition at line 1812 of file variable.c.

Referenced by RB_OBJ_FREEZE_RAW().

◆ RB_OBJ_FREEZE_RAW()

static void RB_OBJ_FREEZE_RAW ( VALUE  obj)
inlinestatic

This is an implementation detail of RB_OBJ_FREEZE().

3rd parties need not use this. Just always use RB_OBJ_FREEZE().

Parameters
[out]objObject in question.

Definition at line 928 of file fl_type.h.

◆ RB_OBJ_FROZEN()

static bool RB_OBJ_FROZEN ( VALUE  obj)
inlinestatic

Checks if an object is frozen.

Parameters
[in]objObject in question.
Return values
trueYes it is.
falseNo it isn't.

Definition at line 898 of file fl_type.h.

Referenced by rb_check_frozen_inline().

◆ RB_OBJ_FROZEN_RAW()

static VALUE RB_OBJ_FROZEN_RAW ( VALUE  obj)
inlinestatic

This is an implementation detail of RB_OBJ_FROZEN().

3rd parties need not use this. Just always use RB_OBJ_FROZEN().

Parameters
[in]objObject in question.
Return values
RUBY_FL_FREEZEYes it is.
0No it isn't.

Definition at line 883 of file fl_type.h.

Referenced by RB_OBJ_FROZEN().

◆ RB_OBJ_INFECT()

static void RB_OBJ_INFECT ( VALUE  dst,
VALUE  src 
)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]dstVictim object.
[in]srcInfectant object.

Definition at line 859 of file fl_type.h.

◆ RB_OBJ_INFECT_RAW()

static void RB_OBJ_INFECT_RAW ( VALUE  dst,
VALUE  src 
)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]dstVictim object.
[in]srcInfectant object.

Definition at line 841 of file fl_type.h.

◆ RB_OBJ_TAINT()

static void RB_OBJ_TAINT ( VALUE  obj)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]objObject in question.

Definition at line 824 of file fl_type.h.

◆ RB_OBJ_TAINT_RAW()

static void RB_OBJ_TAINT_RAW ( VALUE  obj)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]objObject in question.

Definition at line 808 of file fl_type.h.

◆ RB_OBJ_TAINTABLE()

static bool RB_OBJ_TAINTABLE ( VALUE  obj)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]objObject in question.
Returns
false always.

Definition at line 756 of file fl_type.h.

◆ RB_OBJ_TAINTED()

static bool RB_OBJ_TAINTED ( VALUE  obj)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]objObject in question.
Returns
false always.

Definition at line 792 of file fl_type.h.

◆ RB_OBJ_TAINTED_RAW()

static VALUE RB_OBJ_TAINTED_RAW ( VALUE  obj)
inlinestatic
Deprecated:
This function once was a thing in the old days, but makes no sense any longer today.

Exists here for backwards compatibility only. You can safely forget about it.

Parameters
[in]objObject in question.
Returns
false always.

Definition at line 774 of file fl_type.h.