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authorMarcin Bukat <marcin.bukat@gmail.com>2014-04-02 20:46:06 +0200
committerMarcin Bukat <marcin.bukat@gmail.com>2014-04-02 20:46:06 +0200
commitbfd0179042b0b02fb88748d54e56e7e208bb117f (patch)
tree42d5fd51574054caaf673420fca1ec962d62d2f2 /apps/plugins/lua/lobject.h
parent36378988ad4059982742f05f5eb50580b456840a (diff)
downloadrockbox-bfd0179042b0b02fb88748d54e56e7e208bb117f.tar.gz
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Revert "Update lua plugin to 5.2.3"
FILE typedef to *void needs more work to not break sim and application builds. I checked only a few random native builds unfortunately. Sorry for inconvenience.
Diffstat (limited to 'apps/plugins/lua/lobject.h')
-rw-r--r--apps/plugins/lua/lobject.h460
1 files changed, 117 insertions, 343 deletions
diff --git a/apps/plugins/lua/lobject.h b/apps/plugins/lua/lobject.h
index 3a630b944c..93288fe0fb 100644
--- a/apps/plugins/lua/lobject.h
+++ b/apps/plugins/lua/lobject.h
@@ -1,5 +1,5 @@
/*
-** $Id: lobject.h,v 2.71.1.1 2013/04/12 18:48:47 roberto Exp $
+** $Id$
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@@ -16,52 +16,18 @@
#include "lua.h"
-/*
-** Extra tags for non-values
-*/
-#define LUA_TPROTO LUA_NUMTAGS
-#define LUA_TUPVAL (LUA_NUMTAGS+1)
-#define LUA_TDEADKEY (LUA_NUMTAGS+2)
+/* tags for values visible from Lua */
+#define LAST_TAG LUA_TTHREAD
-/*
-** number of all possible tags (including LUA_TNONE but excluding DEADKEY)
-*/
-#define LUA_TOTALTAGS (LUA_TUPVAL+2)
+#define NUM_TAGS (LAST_TAG+1)
/*
-** tags for Tagged Values have the following use of bits:
-** bits 0-3: actual tag (a LUA_T* value)
-** bits 4-5: variant bits
-** bit 6: whether value is collectable
+** Extra tags for non-values
*/
-
-#define VARBITS (3 << 4)
-
-
-/*
-** LUA_TFUNCTION variants:
-** 0 - Lua function
-** 1 - light C function
-** 2 - regular C function (closure)
-*/
-
-/* Variant tags for functions */
-#define LUA_TLCL (LUA_TFUNCTION | (0 << 4)) /* Lua closure */
-#define LUA_TLCF (LUA_TFUNCTION | (1 << 4)) /* light C function */
-#define LUA_TCCL (LUA_TFUNCTION | (2 << 4)) /* C closure */
-
-
-/* Variant tags for strings */
-#define LUA_TSHRSTR (LUA_TSTRING | (0 << 4)) /* short strings */
-#define LUA_TLNGSTR (LUA_TSTRING | (1 << 4)) /* long strings */
-
-
-/* Bit mark for collectable types */
-#define BIT_ISCOLLECTABLE (1 << 6)
-
-/* mark a tag as collectable */
-#define ctb(t) ((t) | BIT_ISCOLLECTABLE)
+#define LUA_TPROTO (LAST_TAG+1)
+#define LUA_TUPVAL (LAST_TAG+2)
+#define LUA_TDEADKEY (LAST_TAG+3)
/*
@@ -86,165 +52,120 @@ typedef struct GCheader {
+
/*
** Union of all Lua values
*/
-typedef union Value Value;
-
-
-#define numfield lua_Number n; /* numbers */
-
+typedef union {
+ GCObject *gc;
+ void *p;
+ lua_Number n;
+ int b;
+} Value;
/*
-** Tagged Values. This is the basic representation of values in Lua,
-** an actual value plus a tag with its type.
+** Tagged Values
*/
-#define TValuefields Value value_; int tt_
-
-typedef struct lua_TValue TValue;
-
-
-/* macro defining a nil value */
-#define NILCONSTANT {NULL}, LUA_TNIL
+#define TValuefields Value value; int tt
-
-#define val_(o) ((o)->value_)
-#define num_(o) (val_(o).n)
-
-
-/* raw type tag of a TValue */
-#define rttype(o) ((o)->tt_)
-
-/* tag with no variants (bits 0-3) */
-#define novariant(x) ((x) & 0x0F)
-
-/* type tag of a TValue (bits 0-3 for tags + variant bits 4-5) */
-#define ttype(o) (rttype(o) & 0x3F)
-
-/* type tag of a TValue with no variants (bits 0-3) */
-#define ttypenv(o) (novariant(rttype(o)))
+typedef struct lua_TValue {
+ TValuefields;
+} TValue;
/* Macros to test type */
-#define checktag(o,t) (rttype(o) == (t))
-#define checktype(o,t) (ttypenv(o) == (t))
-#define ttisnumber(o) checktag((o), LUA_TNUMBER)
-#define ttisnil(o) checktag((o), LUA_TNIL)
-#define ttisboolean(o) checktag((o), LUA_TBOOLEAN)
-#define ttislightuserdata(o) checktag((o), LUA_TLIGHTUSERDATA)
-#define ttisstring(o) checktype((o), LUA_TSTRING)
-#define ttisshrstring(o) checktag((o), ctb(LUA_TSHRSTR))
-#define ttislngstring(o) checktag((o), ctb(LUA_TLNGSTR))
-#define ttistable(o) checktag((o), ctb(LUA_TTABLE))
-#define ttisfunction(o) checktype(o, LUA_TFUNCTION)
-#define ttisclosure(o) ((rttype(o) & 0x1F) == LUA_TFUNCTION)
-#define ttisCclosure(o) checktag((o), ctb(LUA_TCCL))
-#define ttisLclosure(o) checktag((o), ctb(LUA_TLCL))
-#define ttislcf(o) checktag((o), LUA_TLCF)
-#define ttisuserdata(o) checktag((o), ctb(LUA_TUSERDATA))
-#define ttisthread(o) checktag((o), ctb(LUA_TTHREAD))
-#define ttisdeadkey(o) checktag((o), LUA_TDEADKEY)
-
-#define ttisequal(o1,o2) (rttype(o1) == rttype(o2))
+#define ttisnil(o) (ttype(o) == LUA_TNIL)
+#define ttisnumber(o) (ttype(o) == LUA_TNUMBER)
+#define ttisstring(o) (ttype(o) == LUA_TSTRING)
+#define ttistable(o) (ttype(o) == LUA_TTABLE)
+#define ttisfunction(o) (ttype(o) == LUA_TFUNCTION)
+#define ttisboolean(o) (ttype(o) == LUA_TBOOLEAN)
+#define ttisuserdata(o) (ttype(o) == LUA_TUSERDATA)
+#define ttisthread(o) (ttype(o) == LUA_TTHREAD)
+#define ttislightuserdata(o) (ttype(o) == LUA_TLIGHTUSERDATA)
/* Macros to access values */
-#define nvalue(o) check_exp(ttisnumber(o), num_(o))
-#define gcvalue(o) check_exp(iscollectable(o), val_(o).gc)
-#define pvalue(o) check_exp(ttislightuserdata(o), val_(o).p)
-#define rawtsvalue(o) check_exp(ttisstring(o), &val_(o).gc->ts)
+#define ttype(o) ((o)->tt)
+#define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc)
+#define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p)
+#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n)
+#define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts)
#define tsvalue(o) (&rawtsvalue(o)->tsv)
-#define rawuvalue(o) check_exp(ttisuserdata(o), &val_(o).gc->u)
+#define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u)
#define uvalue(o) (&rawuvalue(o)->uv)
-#define clvalue(o) check_exp(ttisclosure(o), &val_(o).gc->cl)
-#define clLvalue(o) check_exp(ttisLclosure(o), &val_(o).gc->cl.l)
-#define clCvalue(o) check_exp(ttisCclosure(o), &val_(o).gc->cl.c)
-#define fvalue(o) check_exp(ttislcf(o), val_(o).f)
-#define hvalue(o) check_exp(ttistable(o), &val_(o).gc->h)
-#define bvalue(o) check_exp(ttisboolean(o), val_(o).b)
-#define thvalue(o) check_exp(ttisthread(o), &val_(o).gc->th)
-/* a dead value may get the 'gc' field, but cannot access its contents */
-#define deadvalue(o) check_exp(ttisdeadkey(o), cast(void *, val_(o).gc))
+#define clvalue(o) check_exp(ttisfunction(o), &(o)->value.gc->cl)
+#define hvalue(o) check_exp(ttistable(o), &(o)->value.gc->h)
+#define bvalue(o) check_exp(ttisboolean(o), (o)->value.b)
+#define thvalue(o) check_exp(ttisthread(o), &(o)->value.gc->th)
#define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0))
-
-#define iscollectable(o) (rttype(o) & BIT_ISCOLLECTABLE)
-
-
-/* Macros for internal tests */
-#define righttt(obj) (ttype(obj) == gcvalue(obj)->gch.tt)
+/*
+** for internal debug only
+*/
+#define checkconsistency(obj) \
+ lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt))
#define checkliveness(g,obj) \
- lua_longassert(!iscollectable(obj) || \
- (righttt(obj) && !isdead(g,gcvalue(obj))))
+ lua_assert(!iscollectable(obj) || \
+ ((ttype(obj) == (obj)->value.gc->gch.tt) && !isdead(g, (obj)->value.gc)))
/* Macros to set values */
-#define settt_(o,t) ((o)->tt_=(t))
+#define setnilvalue(obj) ((obj)->tt=LUA_TNIL)
#define setnvalue(obj,x) \
- { TValue *io=(obj); num_(io)=(x); settt_(io, LUA_TNUMBER); }
-
-#define setnilvalue(obj) settt_(obj, LUA_TNIL)
-
-#define setfvalue(obj,x) \
- { TValue *io=(obj); val_(io).f=(x); settt_(io, LUA_TLCF); }
+ { TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; }
#define setpvalue(obj,x) \
- { TValue *io=(obj); val_(io).p=(x); settt_(io, LUA_TLIGHTUSERDATA); }
+ { TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; }
#define setbvalue(obj,x) \
- { TValue *io=(obj); val_(io).b=(x); settt_(io, LUA_TBOOLEAN); }
-
-#define setgcovalue(L,obj,x) \
- { TValue *io=(obj); GCObject *i_g=(x); \
- val_(io).gc=i_g; settt_(io, ctb(gch(i_g)->tt)); }
+ { TValue *i_o=(obj); i_o->value.b=(x); i_o->tt=LUA_TBOOLEAN; }
#define setsvalue(L,obj,x) \
- { TValue *io=(obj); \
- TString *x_ = (x); \
- val_(io).gc=cast(GCObject *, x_); settt_(io, ctb(x_->tsv.tt)); \
- checkliveness(G(L),io); }
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TSTRING; \
+ checkliveness(G(L),i_o); }
#define setuvalue(L,obj,x) \
- { TValue *io=(obj); \
- val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TUSERDATA)); \
- checkliveness(G(L),io); }
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUSERDATA; \
+ checkliveness(G(L),i_o); }
#define setthvalue(L,obj,x) \
- { TValue *io=(obj); \
- val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTHREAD)); \
- checkliveness(G(L),io); }
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTHREAD; \
+ checkliveness(G(L),i_o); }
-#define setclLvalue(L,obj,x) \
- { TValue *io=(obj); \
- val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TLCL)); \
- checkliveness(G(L),io); }
-
-#define setclCvalue(L,obj,x) \
- { TValue *io=(obj); \
- val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TCCL)); \
- checkliveness(G(L),io); }
+#define setclvalue(L,obj,x) \
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TFUNCTION; \
+ checkliveness(G(L),i_o); }
#define sethvalue(L,obj,x) \
- { TValue *io=(obj); \
- val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTABLE)); \
- checkliveness(G(L),io); }
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTABLE; \
+ checkliveness(G(L),i_o); }
+
+#define setptvalue(L,obj,x) \
+ { TValue *i_o=(obj); \
+ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \
+ checkliveness(G(L),i_o); }
-#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY)
#define setobj(L,obj1,obj2) \
- { const TValue *io2=(obj2); TValue *io1=(obj1); \
- io1->value_ = io2->value_; io1->tt_ = io2->tt_; \
- checkliveness(G(L),io1); }
+ { const TValue *o2=(obj2); TValue *o1=(obj1); \
+ o1->value = o2->value; o1->tt=o2->tt; \
+ checkliveness(G(L),o1); }
/*
-** different types of assignments, according to destination
+** different types of sets, according to destination
*/
/* from stack to (same) stack */
@@ -262,204 +183,47 @@ typedef struct lua_TValue TValue;
#define setobj2n setobj
#define setsvalue2n setsvalue
-
-/* check whether a number is valid (useful only for NaN trick) */
-#define luai_checknum(L,o,c) { /* empty */ }
-
-
-/*
-** {======================================================
-** NaN Trick
-** =======================================================
-*/
-#if defined(LUA_NANTRICK)
-
-/*
-** numbers are represented in the 'd_' field. All other values have the
-** value (NNMARK | tag) in 'tt__'. A number with such pattern would be
-** a "signaled NaN", which is never generated by regular operations by
-** the CPU (nor by 'strtod')
-*/
-
-/* allows for external implementation for part of the trick */
-#if !defined(NNMARK) /* { */
-
-
-#if !defined(LUA_IEEEENDIAN)
-#error option 'LUA_NANTRICK' needs 'LUA_IEEEENDIAN'
-#endif
-
-
-#define NNMARK 0x7FF7A500
-#define NNMASK 0x7FFFFF00
-
-#undef TValuefields
-#undef NILCONSTANT
-
-#if (LUA_IEEEENDIAN == 0) /* { */
-
-/* little endian */
-#define TValuefields \
- union { struct { Value v__; int tt__; } i; double d__; } u
-#define NILCONSTANT {{{NULL}, tag2tt(LUA_TNIL)}}
-/* field-access macros */
-#define v_(o) ((o)->u.i.v__)
-#define d_(o) ((o)->u.d__)
-#define tt_(o) ((o)->u.i.tt__)
-
-#else /* }{ */
-
-/* big endian */
-#define TValuefields \
- union { struct { int tt__; Value v__; } i; double d__; } u
-#define NILCONSTANT {{tag2tt(LUA_TNIL), {NULL}}}
-/* field-access macros */
-#define v_(o) ((o)->u.i.v__)
-#define d_(o) ((o)->u.d__)
-#define tt_(o) ((o)->u.i.tt__)
-
-#endif /* } */
-
-#endif /* } */
+#define setttype(obj, tt) (ttype(obj) = (tt))
-/* correspondence with standard representation */
-#undef val_
-#define val_(o) v_(o)
-#undef num_
-#define num_(o) d_(o)
+#define iscollectable(o) (ttype(o) >= LUA_TSTRING)
-#undef numfield
-#define numfield /* no such field; numbers are the entire struct */
-
-/* basic check to distinguish numbers from non-numbers */
-#undef ttisnumber
-#define ttisnumber(o) ((tt_(o) & NNMASK) != NNMARK)
-
-#define tag2tt(t) (NNMARK | (t))
-
-#undef rttype
-#define rttype(o) (ttisnumber(o) ? LUA_TNUMBER : tt_(o) & 0xff)
-
-#undef settt_
-#define settt_(o,t) (tt_(o) = tag2tt(t))
-
-#undef setnvalue
-#define setnvalue(obj,x) \
- { TValue *io_=(obj); num_(io_)=(x); lua_assert(ttisnumber(io_)); }
-
-#undef setobj
-#define setobj(L,obj1,obj2) \
- { const TValue *o2_=(obj2); TValue *o1_=(obj1); \
- o1_->u = o2_->u; \
- checkliveness(G(L),o1_); }
-
-
-/*
-** these redefinitions are not mandatory, but these forms are more efficient
-*/
-
-#undef checktag
-#undef checktype
-#define checktag(o,t) (tt_(o) == tag2tt(t))
-#define checktype(o,t) (ctb(tt_(o) | VARBITS) == ctb(tag2tt(t) | VARBITS))
-
-#undef ttisequal
-#define ttisequal(o1,o2) \
- (ttisnumber(o1) ? ttisnumber(o2) : (tt_(o1) == tt_(o2)))
-
-
-#undef luai_checknum
-#define luai_checknum(L,o,c) { if (!ttisnumber(o)) c; }
-
-#endif
-/* }====================================================== */
-
-
-
-/*
-** {======================================================
-** types and prototypes
-** =======================================================
-*/
-
-
-union Value {
- GCObject *gc; /* collectable objects */
- void *p; /* light userdata */
- int b; /* booleans */
- lua_CFunction f; /* light C functions */
- numfield /* numbers */
-};
-
-
-struct lua_TValue {
- TValuefields;
-};
-
typedef TValue *StkId; /* index to stack elements */
-
-
/*
-** Header for string value; string bytes follow the end of this structure
+** String headers for string table
*/
typedef union TString {
L_Umaxalign dummy; /* ensures maximum alignment for strings */
struct {
CommonHeader;
- lu_byte extra; /* reserved words for short strings; "has hash" for longs */
+ lu_byte reserved;
unsigned int hash;
- size_t len; /* number of characters in string */
+ size_t len;
} tsv;
} TString;
-/* get the actual string (array of bytes) from a TString */
#define getstr(ts) cast(const char *, (ts) + 1)
-
-/* get the actual string (array of bytes) from a Lua value */
#define svalue(o) getstr(rawtsvalue(o))
-/*
-** Header for userdata; memory area follows the end of this structure
-*/
+
typedef union Udata {
L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */
struct {
CommonHeader;
struct Table *metatable;
struct Table *env;
- size_t len; /* number of bytes */
+ size_t len;
} uv;
} Udata;
-/*
-** Description of an upvalue for function prototypes
-*/
-typedef struct Upvaldesc {
- TString *name; /* upvalue name (for debug information) */
- lu_byte instack; /* whether it is in stack */
- lu_byte idx; /* index of upvalue (in stack or in outer function's list) */
-} Upvaldesc;
-
-
-/*
-** Description of a local variable for function prototypes
-** (used for debug information)
-*/
-typedef struct LocVar {
- TString *varname;
- int startpc; /* first point where variable is active */
- int endpc; /* first point where variable is dead */
-} LocVar;
-
/*
** Function Prototypes
@@ -469,12 +233,11 @@ typedef struct Proto {
TValue *k; /* constants used by the function */
Instruction *code;
struct Proto **p; /* functions defined inside the function */
- int *lineinfo; /* map from opcodes to source lines (debug information) */
- LocVar *locvars; /* information about local variables (debug information) */
- Upvaldesc *upvalues; /* upvalue information */
- union Closure *cache; /* last created closure with this prototype */
- TString *source; /* used for debug information */
- int sizeupvalues; /* size of 'upvalues' */
+ int *lineinfo; /* map from opcodes to source lines */
+ struct LocVar *locvars; /* information about local variables */
+ TString **upvalues; /* upvalue names */
+ TString *source;
+ int sizeupvalues;
int sizek; /* size of `k' */
int sizecode;
int sizelineinfo;
@@ -483,16 +246,31 @@ typedef struct Proto {
int linedefined;
int lastlinedefined;
GCObject *gclist;
- lu_byte numparams; /* number of fixed parameters */
+ lu_byte nups; /* number of upvalues */
+ lu_byte numparams;
lu_byte is_vararg;
- lu_byte maxstacksize; /* maximum stack used by this function */
+ lu_byte maxstacksize;
} Proto;
+/* masks for new-style vararg */
+#define VARARG_HASARG 1
+#define VARARG_ISVARARG 2
+#define VARARG_NEEDSARG 4
+
+
+typedef struct LocVar {
+ TString *varname;
+ int startpc; /* first point where variable is active */
+ int endpc; /* first point where variable is dead */
+} LocVar;
+
+
/*
-** Lua Upvalues
+** Upvalues
*/
+
typedef struct UpVal {
CommonHeader;
TValue *v; /* points to stack or to its own value */
@@ -511,19 +289,20 @@ typedef struct UpVal {
*/
#define ClosureHeader \
- CommonHeader; lu_byte nupvalues; GCObject *gclist
+ CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \
+ struct Table *env
typedef struct CClosure {
ClosureHeader;
lua_CFunction f;
- TValue upvalue[1]; /* list of upvalues */
+ TValue upvalue[1];
} CClosure;
typedef struct LClosure {
ClosureHeader;
struct Proto *p;
- UpVal *upvals[1]; /* list of upvalues */
+ UpVal *upvals[1];
} LClosure;
@@ -533,9 +312,8 @@ typedef union Closure {
} Closure;
-#define isLfunction(o) ttisLclosure(o)
-
-#define getproto(o) (clLvalue(o)->p)
+#define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->c.isC)
+#define isLfunction(o) (ttype(o) == LUA_TFUNCTION && !clvalue(o)->c.isC)
/*
@@ -559,7 +337,7 @@ typedef struct Node {
typedef struct Table {
CommonHeader;
- lu_byte flags; /* 1<<p means tagmethod(p) is not present */
+ lu_byte flags; /* 1<<p means tagmethod(p) is not present */
lu_byte lsizenode; /* log2 of size of `node' array */
struct Table *metatable;
TValue *array; /* array part */
@@ -582,21 +360,17 @@ typedef struct Table {
#define sizenode(t) (twoto((t)->lsizenode))
-/*
-** (address of) a fixed nil value
-*/
#define luaO_nilobject (&luaO_nilobject_)
+LUAI_DATA const TValue luaO_nilobject_;
-LUAI_DDEC const TValue luaO_nilobject_;
-
+#define ceillog2(x) (luaO_log2((x)-1) + 1)
+LUAI_FUNC int luaO_log2 (unsigned int x);
LUAI_FUNC int luaO_int2fb (unsigned int x);
LUAI_FUNC int luaO_fb2int (int x);
-LUAI_FUNC int luaO_ceillog2 (unsigned int x);
-LUAI_FUNC lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2);
-LUAI_FUNC int luaO_str2d (const char *s, size_t len, lua_Number *result);
-LUAI_FUNC int luaO_hexavalue (int c);
+LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2);
+LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result);
LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
va_list argp);
LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...);