def_s Struct Reference

Represent a memory location that holds a QuakeC/Ruamoko object. More...

Collaboration diagram for def_s:

Data Fields
unsigned	constant:1
	stores constant value More...
struct daglabel_s *	daglabel
	daglabel for this def More...
unsigned	external:1
	externally declared def More...
string_t	file
	declaring/defining source file More...
struct flowvar_s *	flowvar
	flowvar for this def More...
void *	free_addr
	who freed this More...
unsigned	global:1
	globally declared def More...
unsigned	initialized:1
	the def has been initialized More...
struct expr_s *	initializer
	initialer expression More...
int	line
	declaring/defining source line More...
unsigned	local:1
	function local def More...
const char *	name
	the def's name More...
struct def_s *	next
	general purpose linking More...
unsigned	nosave:1
	don't set DEF_SAVEGLOBAL More...
int	offset
	address of this def in its defspace More...
unsigned	offset_reloc:1
	use *_def_ofs relocs More...
unsigned	param:1
	function param def More...
int	qfo_def
	index to def in qfo defs More...
struct reloc_s *	relocs
	for relocations More...
void *	return_addr
	who allocated this More...
struct defspace_s *	space
	defspace to which this def belongs More...
unsigned	system:1
	system def More...
struct def_s *	temp_next
	linked list of "free" temp defs More...
struct type_s *	type
	QC type of this def. More...
Def aliasing.
Aliasing a def provides a different view of the def providing access via a different type, or access to members of structs, unions and arrays. Alias defs are very simple: they store only the type and relative offset off the def they alias. All other information is held in the def they alias, including relocation records. However, they do keep track of the source file and line that first created the alias. The relations between a def an any of its aliases are maintained by a linked list headed by def_t::alias_defs and connected by def_t::next. def_t::alias is used to find the main def via one if its aliases. The order of the aliases in the list is arbitrary: it is the reverse of the order in which they were created. Accessing a vector via its components.
struct def_s *	alias_defs
	defs that alias this def More...
struct def_s *	alias
	real def which this def aliases More...

Detailed Description

Represent a memory location that holds a QuakeC/Ruamoko object.

The object represented by the def may be of any type (either internally defined by qfcc (float, int, vector, etc) or user defined (structs, arrays etc)).

Unless the def is external (ie, declared to be in another compilation unit), defs are always attached to a defspace. Storage for the def's object is allocated from that space.

Field Documentation

struct def_s* alias

real def which this def aliases

struct def_s* alias_defs

defs that alias this def

unsigned constant

stores constant value

struct daglabel_s* daglabel

daglabel for this def

unsigned external

externally declared def

string_t file

declaring/defining source file

struct flowvar_s* flowvar

flowvar for this def

void* free_addr

who freed this

unsigned global

globally declared def

unsigned initialized

the def has been initialized

struct expr_s* initializer

initialer expression

int line

declaring/defining source line

unsigned local

function local def

const char* name

the def's name

struct def_s* next

general purpose linking

unsigned nosave

don't set DEF_SAVEGLOBAL

int offset

address of this def in its defspace

unsigned offset_reloc

use *_def_ofs relocs

unsigned param

function param def

int qfo_def

index to def in qfo defs

struct reloc_s* relocs

for relocations

void* return_addr

who allocated this

struct defspace_s* space

defspace to which this def belongs

unsigned system

system def

struct def_s* temp_next

linked list of "free" temp defs

struct type_s* type

QC type of this def.

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The documentation for this struct was generated from the following file:

• tools/qfcc/include/def.h