#include <float.h>
#include <inttypes.h>
#include <limits.h>
-
#include <intprops.h>
#include <verify.h>
+#include <libguile.h>
INLINE_HEADER_BEGIN
EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
pI - printf length modifier for EMACS_INT
EMACS_UINT - unsigned variant of EMACS_INT */
-#ifndef EMACS_INT_MAX
-# if INTPTR_MAX <= 0
-# error "INTPTR_MAX misconfigured"
-# elif INTPTR_MAX <= INT_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
-typedef int EMACS_INT;
-typedef unsigned int EMACS_UINT;
-# define EMACS_INT_MAX INT_MAX
-# define pI ""
-# elif INTPTR_MAX <= LONG_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
-typedef long int EMACS_INT;
-typedef unsigned long EMACS_UINT;
-# define EMACS_INT_MAX LONG_MAX
-# define pI "l"
-/* Check versus LLONG_MAX, not LLONG_MAX >> NONPOINTER_BITS.
- In theory this is not safe, but in practice it seems to be OK. */
-# elif INTPTR_MAX <= LLONG_MAX
-typedef long long int EMACS_INT;
-typedef unsigned long long int EMACS_UINT;
-# define EMACS_INT_MAX LLONG_MAX
-# define pI "ll"
-# else
-# error "INTPTR_MAX too large"
-# endif
+
+typedef scm_t_signed_bits EMACS_INT;
+typedef scm_t_bits EMACS_UINT;
+#define EMACS_INT_MAX SCM_T_SIGNED_BITS_MAX
+
+#if INTPTR_MAX == INT_MAX
+#define pI ""
+#elif INTPTR_MAX == LONG_MAX
+#define pI "l"
+#elif INTPTR_MAX == LLONG_MAX
+#define pI "ll"
+#elif INTPTR_MAX == INTMAX_MAX
+#define pI "j"
+#else
+#error "Cannot determine length modifier for EMACS_INT"
#endif
/* Number of bits to put in each character in the internal representation
#endif /* ENABLE_CHECKING */
\f
-/* Use the configure flag --enable-check-lisp-object-type to make
- Lisp_Object use a struct type instead of the default int. The flag
- causes CHECK_LISP_OBJECT_TYPE to be defined. */
-
-/***** Select the tagging scheme. *****/
-/* The following option controls the tagging scheme:
- - USE_LSB_TAG means that we can assume the least 3 bits of pointers are
- always 0, and we can thus use them to hold tag bits, without
- restricting our addressing space.
-
- If ! USE_LSB_TAG, then use the top 3 bits for tagging, thus
- restricting our possible address range.
-
- USE_LSB_TAG not only requires the least 3 bits of pointers returned by
- malloc to be 0 but also needs to be able to impose a mult-of-8 alignment
- on the few static Lisp_Objects used: all the defsubr as well
- as the two special buffers buffer_defaults and buffer_local_symbols. */
-
enum Lisp_Bits
{
/* 2**GCTYPEBITS. This must be a macro that expands to a literal
integer constant, for MSVC. */
#define GCALIGNMENT 8
- /* Number of bits in a Lisp_Object value, not counting the tag. */
- VALBITS = BITS_PER_EMACS_INT - GCTYPEBITS,
-
- /* Number of bits in a Lisp fixnum tag. */
- INTTYPEBITS = GCTYPEBITS - 1,
-
/* Number of bits in a Lisp fixnum value, not counting the tag. */
- FIXNUM_BITS = VALBITS + 1
+ FIXNUM_BITS = SCM_I_FIXNUM_BIT
};
#if GCALIGNMENT != 1 << GCTYPEBITS
# error "GCALIGNMENT and GCTYPEBITS are inconsistent"
#endif
-/* The maximum value that can be stored in a EMACS_INT, assuming all
- bits other than the type bits contribute to a nonnegative signed value.
- This can be used in #if, e.g., '#if VAL_MAX < UINTPTR_MAX' below. */
-#define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1))
-
DEFINE_GDB_SYMBOL_BEGIN (bool, USE_LSB_TAG)
#define USE_LSB_TAG 1
DEFINE_GDB_SYMBOL_END (USE_LSB_TAG)
Commentary for these macros can be found near their corresponding
functions, below. */
-#if CHECK_LISP_OBJECT_TYPE
-# define lisp_h_XLI(o) ((o).i)
-# define lisp_h_XIL(i) ((Lisp_Object) { i })
-#else
-# define lisp_h_XLI(o) (o)
-# define lisp_h_XIL(i) (i)
-#endif
+#define SMOB_PTR(a) ((void *) SCM_SMOB_DATA (a))
+#define SMOB_TYPEP(x, tag) (x && SCM_SMOB_PREDICATE (tag, x))
+#define lisp_h_XLI(o) (SCM_UNPACK (o))
+#define lisp_h_XIL(i) (SCM_PACK (i))
#define lisp_h_CHECK_LIST_CONS(x, y) CHECK_TYPE (CONSP (x), Qlistp, y)
#define lisp_h_CHECK_NUMBER(x) CHECK_TYPE (INTEGERP (x), Qintegerp, x)
#define lisp_h_CHECK_SYMBOL(x) CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
#define lisp_h_CHECK_TYPE(ok, predicate, x) \
((ok) ? (void) 0 : (void) wrong_type_argument (predicate, x))
-#define lisp_h_CONSP(x) (XTYPE (x) == Lisp_Cons)
-#define lisp_h_EQ(x, y) (XLI (x) == XLI (y))
-#define lisp_h_FLOATP(x) (XTYPE (x) == Lisp_Float)
-#define lisp_h_INTEGERP(x) ((XTYPE (x) & ~Lisp_Int1) == 0)
+#define lisp_h_CONSP(x) (x && scm_is_pair (x))
+#define lisp_h_EQ(x, y) (scm_is_eq (x, y))
+#define lisp_h_FLOATP(x) (x && SCM_INEXACTP (x))
+#define lisp_h_INTEGERP(x) (SCM_I_INUMP (x))
#define lisp_h_MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
-#define lisp_h_MISCP(x) (XTYPE (x) == Lisp_Misc)
-#define lisp_h_NILP(x) EQ (x, Qnil)
+#define lisp_h_MISCP(x) (SMOB_TYPEP (x, lisp_misc_tag))
+#define lisp_h_NILP(x) (scm_is_lisp_false (x))
#define lisp_h_SET_SYMBOL_VAL(sym, v) \
- (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
-#define lisp_h_SYMBOL_CONSTANT_P(sym) (XSYMBOL (sym)->constant)
+ (eassert (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL), \
+ scm_c_vector_set_x (sym, 4, v))
+#define lisp_h_SYMBOL_CONSTANT_P(sym) (SYMBOL_CONSTANT (XSYMBOL (sym)))
#define lisp_h_SYMBOL_VAL(sym) \
- (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
-#define lisp_h_SYMBOLP(x) (XTYPE (x) == Lisp_Symbol)
-#define lisp_h_VECTORLIKEP(x) (XTYPE (x) == Lisp_Vectorlike)
-#define lisp_h_XCAR(c) XCONS (c)->car
-#define lisp_h_XCDR(c) XCONS (c)->u.cdr
-#define lisp_h_XCONS(a) \
- (eassert (CONSP (a)), (struct Lisp_Cons *) XUNTAG (a, Lisp_Cons))
-#define lisp_h_XHASH(a) XUINT (a)
-#define lisp_h_XPNTR(a) ((void *) (intptr_t) (XLI (a) & VALMASK))
-#define lisp_h_XSYMBOL(a) \
- (eassert (SYMBOLP (a)), (struct Lisp_Symbol *) XUNTAG (a, Lisp_Symbol))
-#if USE_LSB_TAG
-# define lisp_h_make_number(n) \
- XIL ((EMACS_INT) ((EMACS_UINT) (n) << INTTYPEBITS))
-# define lisp_h_XFASTINT(a) XINT (a)
-# define lisp_h_XINT(a) (XLI (a) >> INTTYPEBITS)
-# define lisp_h_XTYPE(a) ((enum Lisp_Type) (XLI (a) & ~VALMASK))
-# define lisp_h_XUNTAG(a, type) ((void *) (XLI (a) - (type)))
-#endif
-
-/* When compiling via gcc -O0, define the key operations as macros, as
- Emacs is too slow otherwise. To disable this optimization, compile
- with -DINLINING=false. */
-#if (defined __NO_INLINE__ \
- && ! defined __OPTIMIZE__ && ! defined __OPTIMIZE_SIZE__ \
- && ! (defined INLINING && ! INLINING))
-# define XLI(o) lisp_h_XLI (o)
-# define XIL(i) lisp_h_XIL (i)
-# define CHECK_LIST_CONS(x, y) lisp_h_CHECK_LIST_CONS (x, y)
-# define CHECK_NUMBER(x) lisp_h_CHECK_NUMBER (x)
-# define CHECK_SYMBOL(x) lisp_h_CHECK_SYMBOL (x)
-# define CHECK_TYPE(ok, predicate, x) lisp_h_CHECK_TYPE (ok, predicate, x)
-# define CONSP(x) lisp_h_CONSP (x)
-# define EQ(x, y) lisp_h_EQ (x, y)
-# define FLOATP(x) lisp_h_FLOATP (x)
-# define INTEGERP(x) lisp_h_INTEGERP (x)
-# define MARKERP(x) lisp_h_MARKERP (x)
-# define MISCP(x) lisp_h_MISCP (x)
-# define NILP(x) lisp_h_NILP (x)
-# define SET_SYMBOL_VAL(sym, v) lisp_h_SET_SYMBOL_VAL (sym, v)
-# define SYMBOL_CONSTANT_P(sym) lisp_h_SYMBOL_CONSTANT_P (sym)
-# define SYMBOL_VAL(sym) lisp_h_SYMBOL_VAL (sym)
-# define SYMBOLP(x) lisp_h_SYMBOLP (x)
-# define VECTORLIKEP(x) lisp_h_VECTORLIKEP (x)
-# define XCAR(c) lisp_h_XCAR (c)
-# define XCDR(c) lisp_h_XCDR (c)
-# define XCONS(a) lisp_h_XCONS (a)
-# define XHASH(a) lisp_h_XHASH (a)
-# define XPNTR(a) lisp_h_XPNTR (a)
-# define XSYMBOL(a) lisp_h_XSYMBOL (a)
-# if USE_LSB_TAG
-# define make_number(n) lisp_h_make_number (n)
-# define XFASTINT(a) lisp_h_XFASTINT (a)
-# define XINT(a) lisp_h_XINT (a)
-# define XTYPE(a) lisp_h_XTYPE (a)
-# define XUNTAG(a, type) lisp_h_XUNTAG (a, type)
-# endif
-#endif
+ (eassert (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL), \
+ scm_c_vector_ref (sym, 4))
+#define lisp_h_SYMBOLP(x) \
+ (x && (scm_is_symbol (x) || EQ (x, Qnil) || EQ (x, Qt)))
+#define lisp_h_VECTORLIKEP(x) (SMOB_TYPEP (x, lisp_vectorlike_tag))
+#define lisp_h_XCAR(c) (scm_car (c))
+#define lisp_h_XCDR(c) (scm_cdr (c))
+#define lisp_h_XHASH(a) (SCM_UNPACK (a))
/* Define NAME as a lisp.h inline function that returns TYPE and has
arguments declared as ARGDECLS and passed as ARGS. ARGDECLS and
data type, read the comments after Lisp_Fwd_Type definition
below. */
-/* Lisp integers use 2 tags, to give them one extra bit, thus
- extending their range from, e.g., -2^28..2^28-1 to -2^29..2^29-1. */
-#define INTMASK (EMACS_INT_MAX >> (INTTYPEBITS - 1))
-#define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
+#define INTMASK SCM_MOST_POSITIVE_FIXNUM
+#define case_Lisp_Int case Lisp_Int
/* Idea stolen from GDB. Pedantic GCC complains about enum bitfields,
MSVC doesn't support them, and xlc and Oracle Studio c99 complain
#define ENUM_BF(TYPE) enum TYPE
#endif
+scm_t_bits lisp_misc_tag;
+scm_t_bits lisp_string_tag;
+scm_t_bits lisp_vectorlike_tag;
enum Lisp_Type
{
+ Lisp_Other,
+
/* Integer. XINT (obj) is the integer value. */
- Lisp_Int0 = 0,
- Lisp_Int1 = USE_LSB_TAG ? 1 << INTTYPEBITS : 1,
+ Lisp_Int,
/* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
- Lisp_Symbol = 2,
+ Lisp_Symbol,
/* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
whose first member indicates the subtype. */
- Lisp_Misc = 3,
+ Lisp_Misc,
/* String. XSTRING (object) points to a struct Lisp_String.
The length of the string, and its contents, are stored therein. */
- Lisp_String = USE_LSB_TAG ? 1 : 1 << INTTYPEBITS,
+ Lisp_String,
/* Vector of Lisp objects, or something resembling it.
XVECTOR (object) points to a struct Lisp_Vector, which contains
the size and contents. The size field also contains the type
information, if it's not a real vector object. */
- Lisp_Vectorlike = 5,
+ Lisp_Vectorlike,
/* Cons. XCONS (object) points to a struct Lisp_Cons. */
- Lisp_Cons = 6,
+ Lisp_Cons,
- Lisp_Float = 7
+ Lisp_Float
};
/* This is the set of data types that share a common structure.
Lisp_Fwd_Kboard_Obj /* Fwd to a Lisp_Object field of kboards. */
};
-/* If you want to define a new Lisp data type, here are some
- instructions. See the thread at
- http://lists.gnu.org/archive/html/emacs-devel/2012-10/msg00561.html
- for more info.
-
- First, there are already a couple of Lisp types that can be used if
- your new type does not need to be exposed to Lisp programs nor
- displayed to users. These are Lisp_Save_Value, a Lisp_Misc
- subtype; and PVEC_OTHER, a kind of vectorlike object. The former
- is suitable for temporarily stashing away pointers and integers in
- a Lisp object. The latter is useful for vector-like Lisp objects
- that need to be used as part of other objects, but which are never
- shown to users or Lisp code (search for PVEC_OTHER in xterm.c for
- an example).
-
- These two types don't look pretty when printed, so they are
- unsuitable for Lisp objects that can be exposed to users.
-
- To define a new data type, add one more Lisp_Misc subtype or one
- more pseudovector subtype. Pseudovectors are more suitable for
- objects with several slots that need to support fast random access,
- while Lisp_Misc types are for everything else. A pseudovector object
- provides one or more slots for Lisp objects, followed by struct
- members that are accessible only from C. A Lisp_Misc object is a
- wrapper for a C struct that can contain anything you like.
-
- Explicit freeing is discouraged for Lisp objects in general. But if
- you really need to exploit this, use Lisp_Misc (check free_misc in
- alloc.c to see why). There is no way to free a vectorlike object.
-
- To add a new pseudovector type, extend the pvec_type enumeration;
- to add a new Lisp_Misc, extend the Lisp_Misc_Type enumeration.
-
- For a Lisp_Misc, you will also need to add your entry to union
- Lisp_Misc (but make sure the first word has the same structure as
- the others, starting with a 16-bit member of the Lisp_Misc_Type
- enumeration and a 1-bit GC markbit) and make sure the overall size
- of the union is not increased by your addition.
-
- For a new pseudovector, it's highly desirable to limit the size
- of your data type by VBLOCK_BYTES_MAX bytes (defined in alloc.c).
- Otherwise you will need to change sweep_vectors (also in alloc.c).
-
- Then you will need to add switch branches in print.c (in
- print_object, to print your object, and possibly also in
- print_preprocess) and to alloc.c, to mark your object (in
- mark_object) and to free it (in gc_sweep). The latter is also the
- right place to call any code specific to your data type that needs
- to run when the object is recycled -- e.g., free any additional
- resources allocated for it that are not Lisp objects. You can even
- make a pointer to the function that frees the resources a slot in
- your object -- this way, the same object could be used to represent
- several disparate C structures. */
-
-#ifdef CHECK_LISP_OBJECT_TYPE
-
-typedef struct { EMACS_INT i; } Lisp_Object;
-
-#define LISP_INITIALLY_ZERO {0}
-
-#undef CHECK_LISP_OBJECT_TYPE
-enum CHECK_LISP_OBJECT_TYPE { CHECK_LISP_OBJECT_TYPE = true };
-#else /* CHECK_LISP_OBJECT_TYPE */
-
-/* If a struct type is not wanted, define Lisp_Object as just a number. */
-
-typedef EMACS_INT Lisp_Object;
-#define LISP_INITIALLY_ZERO 0
-enum CHECK_LISP_OBJECT_TYPE { CHECK_LISP_OBJECT_TYPE = false };
-#endif /* CHECK_LISP_OBJECT_TYPE */
+typedef SCM Lisp_Object;
+
+#define LISP_INITIALLY_ZERO SCM_INUM0
/* Convert a Lisp_Object to the corresponding EMACS_INT and vice versa.
At the machine level, these operations are no-ops. */
LISP_MACRO_DEFUN (XLI, EMACS_INT, (Lisp_Object o), (o))
LISP_MACRO_DEFUN (XIL, Lisp_Object, (EMACS_INT i), (i))
-/* In the size word of a vector, this bit means the vector has been marked. */
-
-#define ARRAY_MARK_FLAG_val PTRDIFF_MIN
-#if ENUMABLE (ARRAY_MARK_FLAG_val)
-DEFINE_GDB_SYMBOL_ENUM (ARRAY_MARK_FLAG)
-#else
-DEFINE_GDB_SYMBOL_BEGIN (ptrdiff_t, ARRAY_MARK_FLAG)
-# define ARRAY_MARK_FLAG ARRAY_MARK_FLAG_val
-DEFINE_GDB_SYMBOL_END (ARRAY_MARK_FLAG)
-#endif
-
/* In the size word of a struct Lisp_Vector, this bit means it's really
some other vector-like object. */
#define PSEUDOVECTOR_FLAG_val (PTRDIFF_MAX - PTRDIFF_MAX / 2)
PVEC_HASH_TABLE,
PVEC_TERMINAL,
PVEC_WINDOW_CONFIGURATION,
- PVEC_SUBR,
PVEC_OTHER,
/* These should be last, check internal_equal to see why. */
PVEC_COMPILED,
XCONS (tem) is the struct Lisp_Cons * pointing to the memory for
that cons. */
-/* Mask for the value (as opposed to the type bits) of a Lisp object. */
-#define VALMASK_val (USE_LSB_TAG ? - (1 << GCTYPEBITS) : VAL_MAX)
-#if ENUMABLE (VALMASK_val)
-DEFINE_GDB_SYMBOL_ENUM (VALMASK)
-#else
-DEFINE_GDB_SYMBOL_BEGIN (EMACS_INT, VALMASK)
-# define VALMASK VALMASK_val
-DEFINE_GDB_SYMBOL_END (VALMASK)
-#endif
-
/* Largest and smallest representable fixnum values. These are the C
values. They are macros for use in static initializers. */
-#define MOST_POSITIVE_FIXNUM (EMACS_INT_MAX >> INTTYPEBITS)
-#define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
-
-/* Extract the pointer hidden within A. */
-LISP_MACRO_DEFUN (XPNTR, void *, (Lisp_Object a), (a))
-
-#if USE_LSB_TAG
-
-LISP_MACRO_DEFUN (make_number, Lisp_Object, (EMACS_INT n), (n))
-LISP_MACRO_DEFUN (XINT, EMACS_INT, (Lisp_Object a), (a))
-LISP_MACRO_DEFUN (XFASTINT, EMACS_INT, (Lisp_Object a), (a))
-LISP_MACRO_DEFUN (XTYPE, enum Lisp_Type, (Lisp_Object a), (a))
-LISP_MACRO_DEFUN (XUNTAG, void *, (Lisp_Object a, int type), (a, type))
-
-#else /* ! USE_LSB_TAG */
-
-/* Although compiled only if ! USE_LSB_TAG, the following functions
- also work when USE_LSB_TAG; this is to aid future maintenance when
- the lisp_h_* macros are eventually removed. */
+#define MOST_POSITIVE_FIXNUM SCM_MOST_POSITIVE_FIXNUM
+#define MOST_NEGATIVE_FIXNUM SCM_MOST_NEGATIVE_FIXNUM
/* Make a Lisp integer representing the value of the low order
bits of N. */
INLINE Lisp_Object
make_number (EMACS_INT n)
{
- if (USE_LSB_TAG)
- {
- EMACS_UINT u = n;
- n = u << INTTYPEBITS;
- }
- else
- n &= INTMASK;
- return XIL (n);
+ return SCM_I_MAKINUM (n);
}
/* Extract A's value as a signed integer. */
INLINE EMACS_INT
XINT (Lisp_Object a)
{
- EMACS_INT i = XLI (a);
- if (! USE_LSB_TAG)
- {
- EMACS_UINT u = i;
- i = u << INTTYPEBITS;
- }
- return i >> INTTYPEBITS;
+ return SCM_I_INUM (a);
}
/* Like XINT (A), but may be faster. A must be nonnegative.
INLINE EMACS_INT
XFASTINT (Lisp_Object a)
{
- EMACS_INT n = USE_LSB_TAG ? XINT (a) : XLI (a);
+ EMACS_INT n = XINT (a);
eassert (0 <= n);
return n;
}
-/* Extract A's type. */
-INLINE enum Lisp_Type
-XTYPE (Lisp_Object a)
-{
- EMACS_UINT i = XLI (a);
- return USE_LSB_TAG ? i & ~VALMASK : i >> VALBITS;
-}
-
-/* Extract A's pointer value, assuming A's type is TYPE. */
-INLINE void *
-XUNTAG (Lisp_Object a, int type)
-{
- if (USE_LSB_TAG)
- {
- intptr_t i = XLI (a) - type;
- return (void *) i;
- }
- return XPNTR (a);
-}
-
-#endif /* ! USE_LSB_TAG */
-
/* Extract A's value as an unsigned integer. */
INLINE EMACS_UINT
XUINT (Lisp_Object a)
{
- EMACS_UINT i = XLI (a);
- return USE_LSB_TAG ? i >> INTTYPEBITS : i & INTMASK;
+ return SCM_I_INUM (a);
}
/* Return A's (Lisp-integer sized) hash. Happens to be like XUINT
make_natnum (EMACS_INT n)
{
eassert (0 <= n && n <= MOST_POSITIVE_FIXNUM);
- return USE_LSB_TAG ? make_number (n) : XIL (n);
+ return make_number (n);
}
/* Return true if X and Y are the same object. */
Lisp_Object);
INLINE bool STRINGP (Lisp_Object);
INLINE bool SUB_CHAR_TABLE_P (Lisp_Object);
-INLINE bool SUBRP (Lisp_Object);
INLINE bool (SYMBOLP) (Lisp_Object);
INLINE bool (VECTORLIKEP) (Lisp_Object);
INLINE bool WINDOWP (Lisp_Object);
/* Defined in xdisp.c. */
extern Lisp_Object Qimage;
\f
+/* Extract A's type. */
+INLINE enum Lisp_Type
+XTYPE (Lisp_Object o)
+{
+ if (INTEGERP (o))
+ return Lisp_Int;
+ else if (SYMBOLP (o))
+ return Lisp_Symbol;
+ else if (MISCP (o))
+ return Lisp_Misc;
+ else if (STRINGP (o))
+ return Lisp_String;
+ else if (VECTORLIKEP (o))
+ return Lisp_Vectorlike;
+ else if (CONSP (o))
+ return Lisp_Cons;
+ else if (FLOATP (o))
+ return Lisp_Float;
+ else
+ return Lisp_Other;
+}
/* Extract a value or address from a Lisp_Object. */
-LISP_MACRO_DEFUN (XCONS, struct Lisp_Cons *, (Lisp_Object a), (a))
-
INLINE struct Lisp_Vector *
XVECTOR (Lisp_Object a)
{
eassert (VECTORLIKEP (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct Lisp_String *
XSTRING (Lisp_Object a)
{
eassert (STRINGP (a));
- return XUNTAG (a, Lisp_String);
+ return SMOB_PTR (a);
}
-LISP_MACRO_DEFUN (XSYMBOL, struct Lisp_Symbol *, (Lisp_Object a), (a))
+extern void initialize_symbol (Lisp_Object, Lisp_Object);
+INLINE Lisp_Object build_string (const char *);
+extern Lisp_Object symbol_module;
+extern Lisp_Object function_module;
+extern Lisp_Object plist_module;
+extern Lisp_Object Qt, Qnil, Qt_, Qnil_;
-INLINE struct Lisp_Float *
-XFLOAT (Lisp_Object a)
+typedef Lisp_Object sym_t;
+
+INLINE sym_t
+XSYMBOL (Lisp_Object a)
{
- eassert (FLOATP (a));
- return XUNTAG (a, Lisp_Float);
+ Lisp_Object tem;
+ if (EQ (a, Qt)) a = Qt_;
+ if (EQ (a, Qnil)) a = Qnil_;
+ eassert (SYMBOLP (a));
+ tem = scm_variable_ref (scm_module_lookup (symbol_module, a));
+ return tem;
}
/* Pseudovector types. */
XPROCESS (Lisp_Object a)
{
eassert (PROCESSP (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct window *
XWINDOW (Lisp_Object a)
{
eassert (WINDOWP (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct terminal *
XTERMINAL (Lisp_Object a)
{
- return XUNTAG (a, Lisp_Vectorlike);
-}
-
-INLINE struct Lisp_Subr *
-XSUBR (Lisp_Object a)
-{
- eassert (SUBRP (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct buffer *
XBUFFER (Lisp_Object a)
{
eassert (BUFFERP (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct Lisp_Char_Table *
XCHAR_TABLE (Lisp_Object a)
{
eassert (CHAR_TABLE_P (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct Lisp_Sub_Char_Table *
XSUB_CHAR_TABLE (Lisp_Object a)
{
eassert (SUB_CHAR_TABLE_P (a));
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
INLINE struct Lisp_Bool_Vector *
XBOOL_VECTOR (Lisp_Object a)
{
eassert (BOOL_VECTOR_P (a));
- return XUNTAG (a, Lisp_Vectorlike);
-}
-
-/* Construct a Lisp_Object from a value or address. */
-
-INLINE Lisp_Object
-make_lisp_ptr (void *ptr, enum Lisp_Type type)
-{
- EMACS_UINT utype = type;
- EMACS_UINT typebits = USE_LSB_TAG ? type : utype << VALBITS;
- Lisp_Object a = XIL (typebits | (uintptr_t) ptr);
- eassert (XTYPE (a) == type && XUNTAG (a, type) == ptr);
- return a;
+ return SMOB_PTR (a);
}
INLINE Lisp_Object
make_lisp_proc (struct Lisp_Process *p)
{
- return make_lisp_ptr (p, Lisp_Vectorlike);
+ return scm_new_smob (lisp_vectorlike_tag, (scm_t_bits) p);
}
#define XSETINT(a, b) ((a) = make_number (b))
#define XSETFASTINT(a, b) ((a) = make_natnum (b))
-#define XSETCONS(a, b) ((a) = make_lisp_ptr (b, Lisp_Cons))
-#define XSETVECTOR(a, b) ((a) = make_lisp_ptr (b, Lisp_Vectorlike))
-#define XSETSTRING(a, b) ((a) = make_lisp_ptr (b, Lisp_String))
-#define XSETSYMBOL(a, b) ((a) = make_lisp_ptr (b, Lisp_Symbol))
-#define XSETFLOAT(a, b) ((a) = make_lisp_ptr (b, Lisp_Float))
-#define XSETMISC(a, b) ((a) = make_lisp_ptr (b, Lisp_Misc))
+#define XSETVECTOR(a, b) ((a) = (b)->header.self)
+#define XSETSTRING(a, b) ((a) = (b)->self)
+#define XSETSYMBOL(a, b) ((a) = scm_c_vector_ref (b, 0))
+#define XSETMISC(a, b) (a) = ((union Lisp_Misc *) (b))->u_any.self
/* Pseudovector types. */
#define XSETPSEUDOVECTOR(a, b, code) \
XSETTYPED_PSEUDOVECTOR (a, b, \
(((struct vectorlike_header *) \
- XUNTAG (a, Lisp_Vectorlike)) \
+ SCM_SMOB_DATA (a)) \
->size), \
code)
#define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
typedef struct interval *INTERVAL;
-struct Lisp_Cons
- {
- /* Car of this cons cell. */
- Lisp_Object car;
-
- union
- {
- /* Cdr of this cons cell. */
- Lisp_Object cdr;
-
- /* Used to chain conses on a free list. */
- struct Lisp_Cons *chain;
- } u;
- };
-
-/* Take the car or cdr of something known to be a cons cell. */
-/* The _addr functions shouldn't be used outside of the minimal set
- of code that has to know what a cons cell looks like. Other code not
- part of the basic lisp implementation should assume that the car and cdr
- fields are not accessible. (What if we want to switch to
- a copying collector someday? Cached cons cell field addresses may be
- invalidated at arbitrary points.) */
-INLINE Lisp_Object *
-xcar_addr (Lisp_Object c)
-{
- return &XCONS (c)->car;
-}
-INLINE Lisp_Object *
-xcdr_addr (Lisp_Object c)
-{
- return &XCONS (c)->u.cdr;
-}
-
-/* Use these from normal code. */
LISP_MACRO_DEFUN (XCAR, Lisp_Object, (Lisp_Object c), (c))
LISP_MACRO_DEFUN (XCDR, Lisp_Object, (Lisp_Object c), (c))
INLINE void
XSETCAR (Lisp_Object c, Lisp_Object n)
{
- *xcar_addr (c) = n;
+ scm_set_car_x (c, n);
}
INLINE void
XSETCDR (Lisp_Object c, Lisp_Object n)
{
- *xcdr_addr (c) = n;
+ scm_set_cdr_x (c, n);
}
/* Take the car or cdr of something whose type is not known. */
struct Lisp_String
{
+ Lisp_Object self;
ptrdiff_t size;
ptrdiff_t size_byte;
INTERVAL intervals; /* Text properties in this string. */
Bug#8546. */
struct vectorlike_header
{
- /* The only field contains various pieces of information:
- - The MSB (ARRAY_MARK_FLAG) holds the gcmarkbit.
- - The next bit (PSEUDOVECTOR_FLAG) indicates whether this is a plain
+ Lisp_Object self;
+
+ /* This field contains various pieces of information:
+ - The second bit (PSEUDOVECTOR_FLAG) indicates whether this is a plain
vector (0) or a pseudovector (1).
- If PSEUDOVECTOR_FLAG is 0, the rest holds the size (number
of slots) of the vector.
{
/* Like ASET, but also can be used in the garbage collector:
sweep_weak_table calls set_hash_key etc. while the table is marked. */
- eassert (0 <= idx && idx < (ASIZE (array) & ~ARRAY_MARK_FLAG));
+ eassert (0 <= idx && idx < (ASIZE (array)));
XVECTOR (array)->contents[idx] = val;
}
char_table_set (ct, idx, val);
}
-/* This structure describes a built-in function.
- It is generated by the DEFUN macro only.
- defsubr makes it into a Lisp object. */
-
-struct Lisp_Subr
- {
- struct vectorlike_header header;
- union {
- Lisp_Object (*a0) (void);
- Lisp_Object (*a1) (Lisp_Object);
- Lisp_Object (*a2) (Lisp_Object, Lisp_Object);
- Lisp_Object (*a3) (Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*a4) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*a5) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*a6) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*a7) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*a8) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
- Lisp_Object (*aUNEVALLED) (Lisp_Object args);
- Lisp_Object (*aMANY) (ptrdiff_t, Lisp_Object *);
- } function;
- short min_args, max_args;
- const char *symbol_name;
- const char *intspec;
- const char *doc;
- };
-
/* This is the number of slots that every char table must have. This
counts the ordinary slots and the top, defalt, parent, and purpose
slots. */
Symbols
***********************************************************************/
-/* Interned state of a symbol. */
-
-enum symbol_interned
-{
- SYMBOL_UNINTERNED = 0,
- SYMBOL_INTERNED = 1,
- SYMBOL_INTERNED_IN_INITIAL_OBARRAY = 2
-};
-
enum symbol_redirect
{
SYMBOL_PLAINVAL = 4,
struct Lisp_Symbol
{
- bool_bf gcmarkbit : 1;
+ Lisp_Object self_;
/* 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;
+ ENUM_BF (symbol_redirect) redirect_ : 3;
/* Non-zero means symbol is constant, i.e. changing its value
should signal an error. If the value is 3, then the var
can be changed, but only by `defconst'. */
- unsigned constant : 2;
-
- /* Interned state of the symbol. This is an enumerator from
- enum symbol_interned. */
- unsigned interned : 2;
+ unsigned constant_ : 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. */
- Lisp_Object name;
+ bool_bf declared_special_ : 1;
/* Value of the symbol or Qunbound if unbound. Which alternative of the
union is used depends on the `redirect' field above. */
union {
- Lisp_Object value;
- struct Lisp_Symbol *alias;
- struct Lisp_Buffer_Local_Value *blv;
- union Lisp_Fwd *fwd;
- } val;
-
- /* Function value of the symbol or Qnil if not fboundp. */
- Lisp_Object function;
-
- /* The symbol's property list. */
- Lisp_Object plist;
-
- /* Next symbol in obarray bucket, if the symbol is interned. */
- struct Lisp_Symbol *next;
+ Lisp_Object value_;
+ sym_t alias_;
+ struct Lisp_Buffer_Local_Value *blv_;
+ union Lisp_Fwd *fwd_;
+ };
};
-/* Value is name of symbol. */
+#define SYMBOL_SELF(sym) (scm_c_vector_ref (sym, 0))
+#define SET_SYMBOL_SELF(sym, v) (scm_c_vector_set_x (sym, 0, v))
+#define SYMBOL_REDIRECT(sym) (XINT (scm_c_vector_ref (sym, 1)))
+#define SET_SYMBOL_REDIRECT(sym, v) (scm_c_vector_set_x (sym, 1, make_number (v)))
+#define SYMBOL_CONSTANT(sym) (XINT (scm_c_vector_ref (sym, 2)))
+#define SET_SYMBOL_CONSTANT(sym, v) (scm_c_vector_set_x (sym, 2, make_number (v)))
+#define SYMBOL_DECLARED_SPECIAL(sym) (XINT (scm_c_vector_ref (sym, 3)))
+#define SET_SYMBOL_DECLARED_SPECIAL(sym, v) (scm_c_vector_set_x (sym, 3, make_number (v)))
-LISP_MACRO_DEFUN (SYMBOL_VAL, Lisp_Object, (struct Lisp_Symbol *sym), (sym))
+/* Value is name of symbol. */
-INLINE struct Lisp_Symbol *
-SYMBOL_ALIAS (struct Lisp_Symbol *sym)
+INLINE sym_t
+SYMBOL_ALIAS (sym_t sym)
{
- eassert (sym->redirect == SYMBOL_VARALIAS);
- return sym->val.alias;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_VARALIAS);
+ return scm_c_vector_ref (sym, 4);
}
INLINE struct Lisp_Buffer_Local_Value *
-SYMBOL_BLV (struct Lisp_Symbol *sym)
+SYMBOL_BLV (sym_t sym)
{
- eassert (sym->redirect == SYMBOL_LOCALIZED);
- return sym->val.blv;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_LOCALIZED);
+ return scm_to_pointer (scm_c_vector_ref (sym, 4));
}
INLINE union Lisp_Fwd *
-SYMBOL_FWD (struct Lisp_Symbol *sym)
+SYMBOL_FWD (sym_t sym)
{
- eassert (sym->redirect == SYMBOL_FORWARDED);
- return sym->val.fwd;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_FORWARDED);
+ return scm_to_pointer (scm_c_vector_ref (sym, 4));
}
LISP_MACRO_DEFUN_VOID (SET_SYMBOL_VAL,
- (struct Lisp_Symbol *sym, Lisp_Object v), (sym, v))
+ (sym_t sym, Lisp_Object v), (sym, v))
INLINE void
-SET_SYMBOL_ALIAS (struct Lisp_Symbol *sym, struct Lisp_Symbol *v)
+SET_SYMBOL_ALIAS (sym_t sym, sym_t v)
{
- eassert (sym->redirect == SYMBOL_VARALIAS);
- sym->val.alias = v;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_VARALIAS);
+ scm_c_vector_set_x (sym, 4, v);
}
INLINE void
-SET_SYMBOL_BLV (struct Lisp_Symbol *sym, struct Lisp_Buffer_Local_Value *v)
+SET_SYMBOL_BLV (sym_t sym, struct Lisp_Buffer_Local_Value *v)
{
- eassert (sym->redirect == SYMBOL_LOCALIZED);
- sym->val.blv = v;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_LOCALIZED);
+ scm_c_vector_set_x (sym, 4, scm_from_pointer (v, NULL));
}
INLINE void
-SET_SYMBOL_FWD (struct Lisp_Symbol *sym, union Lisp_Fwd *v)
+SET_SYMBOL_FWD (sym_t sym, union Lisp_Fwd *v)
{
- eassert (sym->redirect == SYMBOL_FORWARDED);
- sym->val.fwd = v;
+ eassert (SYMBOL_REDIRECT (sym) == SYMBOL_FORWARDED);
+ scm_c_vector_set_x (sym, 4, scm_from_pointer (v, NULL));
}
INLINE Lisp_Object
SYMBOL_NAME (Lisp_Object sym)
{
- return XSYMBOL (sym)->name;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ return build_string (scm_to_locale_string (scm_symbol_to_string (sym)));
}
/* Value is true if SYM is an interned symbol. */
INLINE bool
SYMBOL_INTERNED_P (Lisp_Object sym)
{
- return XSYMBOL (sym)->interned != SYMBOL_UNINTERNED;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ return scm_is_true (scm_symbol_interned_p (sym));
}
-/* Value is true if SYM is interned in initial_obarray. */
-
-INLINE bool
-SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (Lisp_Object sym)
+INLINE Lisp_Object
+SYMBOL_FUNCTION (Lisp_Object sym)
{
- return XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ return scm_variable_ref (scm_module_lookup (function_module, sym));
}
/* Value is non-zero if symbol is considered a constant, i.e. its
#define DEFSYM(sym, name) \
do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (false)
+LISP_MACRO_DEFUN (SYMBOL_VAL, Lisp_Object, (sym_t sym), (sym))
+
\f
/***********************************************************************
Hash Tables
INLINE struct Lisp_Hash_Table *
XHASH_TABLE (Lisp_Object a)
{
- return XUNTAG (a, Lisp_Vectorlike);
+ return SMOB_PTR (a);
}
#define XSET_HASH_TABLE(VAR, PTR) \
INLINE EMACS_UINT
SXHASH_REDUCE (EMACS_UINT x)
{
- return (x ^ x >> (BITS_PER_EMACS_INT - FIXNUM_BITS)) & INTMASK;
+ return (x ^ x >> (BITS_PER_EMACS_INT - FIXNUM_BITS + 1)) & INTMASK;
}
/* These structures are used for various misc types. */
struct Lisp_Misc_Any /* Supertype of all Misc types. */
{
+ Lisp_Object self;
ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_??? */
- bool_bf gcmarkbit : 1;
- unsigned spacer : 15;
};
struct Lisp_Marker
{
+ Lisp_Object self;
ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Marker */
- bool_bf gcmarkbit : 1;
- unsigned spacer : 13;
/* This flag is temporarily used in the functions
decode/encode_coding_object to record that the marker position
must be adjusted after the conversion. */
I.e. 9words plus 2 bits, 3words of which are for external linked lists.
*/
{
+ Lisp_Object self;
ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Overlay */
- bool_bf gcmarkbit : 1;
- unsigned spacer : 15;
struct Lisp_Overlay *next;
Lisp_Object start;
Lisp_Object end;
struct Lisp_Save_Value
{
+ Lisp_Object self;
ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Save_Value */
- bool_bf gcmarkbit : 1;
- unsigned spacer : 32 - (16 + 1 + SAVE_TYPE_BITS);
+ unsigned spacer : 32 - (16 + SAVE_TYPE_BITS);
/* V->data may hold up to SAVE_VALUE_SLOTS entries. The type of
V's data entries are determined by V->save_type. E.g., if
return XSAVE_VALUE (obj)->data[n].object;
}
-/* A miscellaneous object, when it's on the free list. */
-struct Lisp_Free
- {
- ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Free */
- bool_bf gcmarkbit : 1;
- unsigned spacer : 15;
- union Lisp_Misc *chain;
- };
-
/* To get the type field of a union Lisp_Misc, use XMISCTYPE.
It uses one of these struct subtypes to get the type field. */
union Lisp_Misc
{
struct Lisp_Misc_Any u_any; /* Supertype of all Misc types. */
- struct Lisp_Free u_free;
struct Lisp_Marker u_marker;
struct Lisp_Overlay u_overlay;
struct Lisp_Save_Value u_save_value;
INLINE union Lisp_Misc *
XMISC (Lisp_Object a)
{
- return XUNTAG (a, Lisp_Misc);
+ return SMOB_PTR (a);
}
INLINE struct Lisp_Misc_Any *
return &a->u_buffer_objfwd;
}
\f
-/* Lisp floating point type. */
-struct Lisp_Float
- {
- double data;
- };
-
-INLINE double
-XFLOAT_DATA (Lisp_Object f)
-{
- return XFLOAT (f)->data;
-}
+#define XFLOAT_DATA(f) (scm_to_double (f))
/* Most hosts nowadays use IEEE floating point, so they use IEC 60559
representations, have infinities and NaNs, and do not trap on
INLINE bool
STRINGP (Lisp_Object x)
{
- return XTYPE (x) == Lisp_String;
+ return SMOB_TYPEP (x, lisp_string_tag);
}
INLINE bool
VECTORP (Lisp_Object x)
else
{
/* Converting to struct vectorlike_header * avoids aliasing issues. */
- struct vectorlike_header *h = XUNTAG (a, Lisp_Vectorlike);
+ struct vectorlike_header *h = SMOB_PTR (a);
return PSEUDOVECTOR_TYPEP (h, code);
}
}
-
/* Test for specific pseudovector types. */
INLINE bool
return PSEUDOVECTORP (a, PVEC_TERMINAL);
}
-INLINE bool
-SUBRP (Lisp_Object a)
-{
- return PSEUDOVECTORP (a, PVEC_SUBR);
-}
-
INLINE bool
COMPILEDP (Lisp_Object a)
{
/* This version of DEFUN declares a function prototype with the right
arguments, so we can catch errors with maxargs at compile-time. */
-#ifdef _MSC_VER
#define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
+ SCM_SNARF_INIT (defsubr (lname, gsubr_ ## fnname, minargs, maxargs, intspec)) \
Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
- static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
- { { (PVEC_SUBR << PSEUDOVECTOR_AREA_BITS) \
- | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)) }, \
- { (Lisp_Object (__cdecl *)(void))fnname }, \
- minargs, maxargs, lname, intspec, 0}; \
+ DEFUN_GSUBR_ ## maxargs (lname, fnname, minargs, maxargs) \
Lisp_Object fnname
-#else /* not _MSC_VER */
-#define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
- static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
- { { PVEC_SUBR << PSEUDOVECTOR_AREA_BITS }, \
- { .a ## maxargs = fnname }, \
- minargs, maxargs, lname, intspec, 0}; \
- Lisp_Object fnname
-#endif
+
+#define GSUBR_ARGS_1(f) f (arg1)
+#define GSUBR_ARGS_2(f) GSUBR_ARGS_1 (f), f (arg2)
+#define GSUBR_ARGS_3(f) GSUBR_ARGS_2 (f), f (arg3)
+#define GSUBR_ARGS_4(f) GSUBR_ARGS_3 (f), f (arg4)
+#define GSUBR_ARGS_5(f) GSUBR_ARGS_4 (f), f (arg5)
+#define GSUBR_ARGS_6(f) GSUBR_ARGS_5 (f), f (arg6)
+#define GSUBR_ARGS_7(f) GSUBR_ARGS_6 (f), f (arg7)
+#define GSUBR_ARGS_8(f) GSUBR_ARGS_7 (f), f (arg8)
+
+#define GSUBR_ARGS(n) GSUBR_ARGS_PASTE (GSUBR_ARGS_, n)
+#define GSUBR_ARGS_PASTE(a, b) a ## b
+
+#define DEFUN_GSUBR_N(fn, maxargs) \
+ Lisp_Object \
+ gsubr_ ## fn \
+ (GSUBR_ARGS (maxargs) (Lisp_Object)) \
+ { \
+ return fn (GSUBR_ARGS (maxargs) (GSUBR_ARG)); \
+ }
+#define GSUBR_ARG(x) (SCM_UNBNDP (x) ? Qnil : x)
+
+#define DEFUN_GSUBR_0(lname, fn, minargs, maxargs) \
+ Lisp_Object gsubr_ ## fn (void) { return fn (); }
+#define DEFUN_GSUBR_1(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_2(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_3(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_4(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_5(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_6(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_7(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+#define DEFUN_GSUBR_8(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
+
+#define DEFUN_GSUBR_UNEVALLED(lname, fn, minargs, maxargs) \
+ Lisp_Object \
+ gsubr_ ## fn (Lisp_Object rest) \
+ { \
+ Lisp_Object len = Flength (rest); \
+ if (XINT (len) < minargs) \
+ xsignal2 (Qwrong_number_of_arguments, \
+ intern (lname), len); \
+ return fn (rest); \
+ }
+#define DEFUN_GSUBR_MANY(lname, fn, minargs, maxargs) \
+ Lisp_Object \
+ gsubr_ ## fn (Lisp_Object rest) \
+ { \
+ int len = scm_to_int (scm_length (rest)); \
+ Lisp_Object *args; \
+ SAFE_ALLOCA_LISP (args, len); \
+ int i; \
+ for (i = 0; \
+ i < len && scm_is_pair (rest); \
+ i++, rest = SCM_CDR (rest)) \
+ args[i] = SCM_CAR (rest); \
+ if (i < minargs) \
+ xsignal2 (Qwrong_number_of_arguments, \
+ intern (lname), make_number (i)); \
+ return fn (i, args); \
+ }
/* Note that the weird token-substitution semantics of ANSI C makes
this work for MANY and UNEVALLED. */
/* defsubr (Sname);
is how we define the symbol for function `name' at start-up time. */
-extern void defsubr (struct Lisp_Subr *);
+extern void defsubr (const char *, scm_t_subr, short, short, const char *);
enum maxargs
{
union specbinding. But only eval.c should access it. */
enum specbind_tag {
- SPECPDL_UNWIND, /* An unwind_protect function on Lisp_Object. */
- SPECPDL_UNWIND_PTR, /* Likewise, on void *. */
- SPECPDL_UNWIND_INT, /* Likewise, on int. */
- SPECPDL_UNWIND_VOID, /* Likewise, with no arg. */
SPECPDL_BACKTRACE, /* An element of the backtrace. */
SPECPDL_LET, /* A plain and simple dynamic let-binding. */
/* Tags greater than SPECPDL_LET must be "subkinds" of LET. */
ENUM_BF (specbind_tag) kind : CHAR_BIT;
struct {
ENUM_BF (specbind_tag) kind : CHAR_BIT;
+ } frame;
+ struct {
+ ENUM_BF (specbind_tag) kind : CHAR_BIT;
+ bool wind_explicitly;
void (*func) (Lisp_Object);
Lisp_Object arg;
} unwind;
struct {
ENUM_BF (specbind_tag) kind : CHAR_BIT;
+ bool wind_explicitly;
void (*func) (void *);
void *arg;
} unwind_ptr;
struct {
ENUM_BF (specbind_tag) kind : CHAR_BIT;
+ bool wind_explicitly;
void (*func) (int);
int arg;
} unwind_int;
struct {
ENUM_BF (specbind_tag) kind : CHAR_BIT;
+ bool wind_explicitly;
void (*func) (void);
} unwind_void;
struct {
struct handler
{
enum handlertype type;
+ Lisp_Object ptag;
Lisp_Object tag_or_ch;
Lisp_Object val;
+ Lisp_Object var;
+ Lisp_Object body;
struct handler *next;
- struct handler *nextfree;
-
- /* The bytecode interpreter can have several handlers active at the same
- time, so when we longjmp to one of them, it needs to know which handler
- this was and what was the corresponding internal state. This is stored
- here, and when we longjmp we make sure that handlerlist points to the
- proper handler. */
- Lisp_Object *bytecode_top;
- int bytecode_dest;
-
- /* Most global vars are reset to their value via the specpdl mechanism,
- but a few others are handled by storing their value here. */
-#if true /* GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS, but defined later. */
- struct gcpro *gcpro;
-#endif
- sys_jmp_buf jmp;
EMACS_INT lisp_eval_depth;
- ptrdiff_t pdlcount;
- int poll_suppress_count;
int interrupt_input_blocked;
};
-/* Fill in the components of c, and put it on the list. */
-#define PUSH_HANDLER(c, tag_ch_val, handlertype) \
- if (handlerlist->nextfree) \
- (c) = handlerlist->nextfree; \
- else \
- { \
- (c) = xmalloc (sizeof (struct handler)); \
- (c)->nextfree = NULL; \
- handlerlist->nextfree = (c); \
- } \
- (c)->type = (handlertype); \
- (c)->tag_or_ch = (tag_ch_val); \
- (c)->val = Qnil; \
- (c)->next = handlerlist; \
- (c)->lisp_eval_depth = lisp_eval_depth; \
- (c)->pdlcount = SPECPDL_INDEX (); \
- (c)->poll_suppress_count = poll_suppress_count; \
- (c)->interrupt_input_blocked = interrupt_input_blocked;\
- (c)->gcpro = gcprolist; \
- handlerlist = (c);
-
-
extern Lisp_Object memory_signal_data;
-/* An address near the bottom of the stack.
- Tells GC how to save a copy of the stack. */
-extern char *stack_bottom;
-
/* Check quit-flag and quit if it is non-nil.
Typing C-g does not directly cause a quit; it only sets Vquit_flag.
So the program needs to do QUIT at times when it is safe to quit.
INLINE void
set_symbol_function (Lisp_Object sym, Lisp_Object function)
{
- XSYMBOL (sym)->function = function;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ scm_variable_set_x (scm_module_lookup (function_module, sym), function);
}
-INLINE void
-set_symbol_plist (Lisp_Object sym, Lisp_Object plist)
+INLINE Lisp_Object
+symbol_plist (Lisp_Object sym)
{
- XSYMBOL (sym)->plist = plist;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ return scm_variable_ref (scm_module_lookup (plist_module, sym));
}
INLINE void
-set_symbol_next (Lisp_Object sym, struct Lisp_Symbol *next)
+set_symbol_plist (Lisp_Object sym, Lisp_Object plist)
{
- XSYMBOL (sym)->next = next;
+ if (EQ (sym, Qnil)) sym = Qnil_;
+ if (EQ (sym, Qt)) sym = Qt_;
+ scm_variable_set_x (scm_module_lookup (plist_module, sym), plist);
}
/* Buffer-local (also frame-local) variable access functions. */
}
/* Defined in data.c. */
+extern Lisp_Object Qnil_, Qt_;
extern Lisp_Object Qquote, Qunbound;
extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
extern Lisp_Object Qerror, Qquit, Qargs_out_of_range;
extern Lisp_Object Qsequencep;
extern Lisp_Object Qchar_or_string_p, Qinteger_or_marker_p;
extern Lisp_Object Qfboundp;
+extern Lisp_Object Qspecial_operator;
extern Lisp_Object Qcdr;
extern intmax_t cons_to_signed (Lisp_Object, intmax_t, intmax_t);
extern uintmax_t cons_to_unsigned (Lisp_Object, uintmax_t);
-extern struct Lisp_Symbol *indirect_variable (struct Lisp_Symbol *);
+extern sym_t indirect_variable (sym_t );
extern _Noreturn void args_out_of_range (Lisp_Object, Lisp_Object);
extern _Noreturn void args_out_of_range_3 (Lisp_Object, Lisp_Object,
Lisp_Object);
extern Lisp_Object do_symval_forwarding (union Lisp_Fwd *);
extern void set_internal (Lisp_Object, Lisp_Object, Lisp_Object, bool);
extern void syms_of_data (void);
-extern void swap_in_global_binding (struct Lisp_Symbol *);
+extern void swap_in_global_binding (sym_t );
/* Defined in cmds.c */
extern void syms_of_cmds (void);
extern ptrdiff_t string_byte_to_char (Lisp_Object, ptrdiff_t);
extern Lisp_Object string_to_multibyte (Lisp_Object);
extern Lisp_Object string_make_unibyte (Lisp_Object);
+extern void init_fns_once (void);
extern void syms_of_fns (void);
/* Defined in floatfns.c. */
extern Lisp_Object check_obarray (Lisp_Object);
extern Lisp_Object intern_1 (const char *, ptrdiff_t);
extern Lisp_Object intern_c_string_1 (const char *, ptrdiff_t);
+extern Lisp_Object obhash (Lisp_Object);
extern Lisp_Object oblookup (Lisp_Object, const char *, ptrdiff_t, ptrdiff_t);
INLINE void
LOADHIST_ATTACH (Lisp_Object x)
Lisp_Object);
extern _Noreturn void signal_error (const char *, Lisp_Object);
extern Lisp_Object eval_sub (Lisp_Object form);
+extern Lisp_Object Ffuncall (ptrdiff_t nargs, Lisp_Object *args);
extern Lisp_Object apply1 (Lisp_Object, Lisp_Object);
extern Lisp_Object call0 (Lisp_Object);
extern Lisp_Object call1 (Lisp_Object, Lisp_Object);
(Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *,
Lisp_Object, Lisp_Object (*) (Lisp_Object, ptrdiff_t, Lisp_Object *));
extern void specbind (Lisp_Object, Lisp_Object);
+extern void record_unwind_protect_1 (void (*) (Lisp_Object), Lisp_Object, bool);
extern void record_unwind_protect (void (*) (Lisp_Object), Lisp_Object);
+extern void record_unwind_protect_ptr_1 (void (*) (void *), void *, bool);
extern void record_unwind_protect_ptr (void (*) (void *), void *);
+extern void record_unwind_protect_int_1 (void (*) (int), int, bool);
extern void record_unwind_protect_int (void (*) (int), int);
+extern void record_unwind_protect_void_1 (void (*) (void), bool);
extern void record_unwind_protect_void (void (*) (void));
-extern void record_unwind_protect_nothing (void);
-extern void clear_unwind_protect (ptrdiff_t);
-extern void set_unwind_protect (ptrdiff_t, void (*) (Lisp_Object), Lisp_Object);
-extern void set_unwind_protect_ptr (ptrdiff_t, void (*) (void *), void *);
-extern Lisp_Object unbind_to (ptrdiff_t, Lisp_Object);
+extern void dynwind_begin (void);
+extern void dynwind_end (void);
extern _Noreturn void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
extern _Noreturn void verror (const char *, va_list)
ATTRIBUTE_FORMAT_PRINTF (1, 0);
extern void mark_specpdl (void);
extern void get_backtrace (Lisp_Object array);
Lisp_Object backtrace_top_function (void);
-extern bool let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol);
+extern bool let_shadows_buffer_binding_p (sym_t symbol);
extern bool let_shadows_global_binding_p (Lisp_Object symbol);
+extern _Noreturn SCM abort_to_prompt (SCM, SCM);
+extern SCM call_with_prompt (SCM, SCM, SCM);
+extern SCM make_prompt_tag (void);
/* Defined in editfns.c. */
Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object, int);
extern void close_file_unwind (int);
+extern void close_file_ptr_unwind (void *);
extern void fclose_unwind (void *);
+extern void fclose_ptr_unwind (void *);
extern void restore_point_unwind (Lisp_Object);
extern _Noreturn void report_file_errno (const char *, Lisp_Object, int);
extern _Noreturn void report_file_error (const char *, Lisp_Object);
extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t)
ATTRIBUTE_ALLOC_SIZE ((2,3));
extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
+extern void *xmalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
+extern void *xzalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
+extern void *xmalloc_atomic_unsafe (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
+extern void *xnmalloc_atomic (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2));
extern char *xstrdup (const char *) ATTRIBUTE_MALLOC;
extern char *xlispstrdup (Lisp_Object) ATTRIBUTE_MALLOC;
enum MAX_ALLOCA { MAX_ALLOCA = 16 * 1024 };
-extern void *record_xmalloc (size_t) ATTRIBUTE_ALLOC_SIZE ((1));
-
-#define USE_SAFE_ALLOCA \
- ptrdiff_t sa_count = SPECPDL_INDEX (); bool sa_must_free = false
+#define USE_SAFE_ALLOCA ((void) 0)
/* SAFE_ALLOCA allocates a simple buffer. */
#define SAFE_ALLOCA(size) ((size) < MAX_ALLOCA \
? alloca (size) \
- : (sa_must_free = true, record_xmalloc (size)))
+ : xmalloc (size))
/* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
NITEMS items, each of the same type as *BUF. MULTIPLIER must
if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \
(buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \
else \
- { \
- (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
- sa_must_free = true; \
- record_unwind_protect_ptr (xfree, buf); \
- } \
- } while (false)
+ (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
+ } while (0)
/* SAFE_FREE frees xmalloced memory and enables GC as needed. */
-#define SAFE_FREE() \
- do { \
- if (sa_must_free) { \
- sa_must_free = false; \
- unbind_to (sa_count, Qnil); \
- } \
- } while (false)
-
+#define SAFE_FREE() ((void) 0)
/* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
if ((nelt) < MAX_ALLOCA / word_size) \
(buf) = alloca ((nelt) * word_size); \
else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / word_size) \
- { \
- Lisp_Object arg_; \
- (buf) = xmalloc ((nelt) * word_size); \
- arg_ = make_save_memory (buf, nelt); \
- sa_must_free = true; \
- record_unwind_protect (free_save_value, arg_); \
- } \
+ buf = xmalloc ((nelt) * word_size); \
else \
memory_full (SIZE_MAX); \
} while (false)
}
}
- if (SUBRP (object))
- return XSUBR (object)->max_args != UNEVALLED;
+ if (scm_is_true (scm_procedure_p (object)))
+ return 1;
else if (COMPILEDP (object))
return true;
else if (CONSP (object))
Lisp_Object car = XCAR (object);
return EQ (car, Qlambda) || EQ (car, Qclosure);
}
- else
- return false;
}
INLINE_HEADER_END
-
#endif /* EMACS_LISP_H */