bool_bf gcmarkbit : 1;
/* Indicates where the value can be found:
0 : it's a plain var, the value is in the `value' field.
1 : it's a varalias, the value is really in the `alias' symbol.
2 : it's a localized var, the value is in the `blv' object.
3 : it's a forwarding variable, the value is in `forward'. */
ENUM_BF (symbol_redirect) redirect : 3;
/* 0 : normal case, just set the value
1 : constant, cannot set, e.g. nil, t, :keywords.
2 : trap the write, call watcher functions. */
ENUM_BF (symbol_trapped_write) trapped_write : 2;
/* Interned state of the symbol. This is an enumerator from
enum symbol_interned. */
unsigned interned : 2;
/* True means that this variable has been explicitly declared
special (with `defvar' etc), and shouldn't be lexically bound. */
bool_bf declared_special : 1;
/* True if pointed to from purespace and hence can't be GC'd. */
bool_bf pinned : 1;
/* The symbol's name, as a Lisp string. */
/* Value of the symbol or Qunbound if unbound. Which alternative of the
union is used depends on the `redirect' field above. */
struct Lisp_Symbol *alias;
struct Lisp_Buffer_Local_Value *blv;
/* Function value of the symbol or Qnil if not fboundp. */
/* The symbol's property list. */
/* Next symbol in obarray bucket, if the symbol is interned. */
struct Lisp_Symbol *next;