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mirror of https://github.com/lua/lua.git synced 2025-02-04 06:13:04 +08:00

new API function lua_rawget

This commit is contained in:
Roberto Ierusalimschy 2000-09-14 11:09:31 -03:00
parent f45cba42b5
commit 620d22f2a0
6 changed files with 40 additions and 21 deletions

11
lapi.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lapi.c,v 1.96 2000/09/11 20:29:27 roberto Exp roberto $ ** $Id: lapi.c,v 1.97 2000/09/12 13:47:46 roberto Exp $
** Lua API ** Lua API
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -366,6 +366,15 @@ int lua_ref (lua_State *L, int lock) {
} }
/*
** "do" functions (run Lua code)
** (most of them are in ldo.c)
*/
void lua_rawcall (lua_State *L, int nargs, int nresults) {
luaD_call(L, L->top-(nargs+1), nresults);
}
/* /*
** miscellaneous functions ** miscellaneous functions

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@ -1,5 +1,5 @@
/* /*
** $Id: lbaselib.c,v 1.3 2000/09/12 18:41:43 roberto Exp roberto $ ** $Id: lbaselib.c,v 1.4 2000/09/13 19:52:39 roberto Exp roberto $
** Basic library ** Basic library
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -51,7 +51,7 @@ static int luaB__ERRORMESSAGE (lua_State *L) {
} }
lua_pushstring(L, "\n"); lua_pushstring(L, "\n");
lua_concat(L, 3); lua_concat(L, 3);
lua_call(L, 1, 0); lua_rawcall(L, 1, 0);
} }
return 0; return 0;
} }
@ -71,8 +71,7 @@ static int luaB_print (lua_State *L) {
const char *s; const char *s;
lua_pushvalue(L, -1); /* function to be called */ lua_pushvalue(L, -1); /* function to be called */
lua_pushvalue(L, i); /* value to print */ lua_pushvalue(L, i); /* value to print */
if (lua_call(L, 1, 1) != 0) lua_rawcall(L, 1, 1);
lua_error(L, NULL);
s = lua_tostring(L, -1); /* get result */ s = lua_tostring(L, -1); /* get result */
if (s == NULL) if (s == NULL)
lua_error(L, "`tostring' must return a string to `print'"); lua_error(L, "`tostring' must return a string to `print'");
@ -335,8 +334,7 @@ static int luaB_foreachi (lua_State *L) {
lua_pushvalue(L, 2); /* function */ lua_pushvalue(L, 2); /* function */
lua_pushnumber(L, i); /* 1st argument */ lua_pushnumber(L, i); /* 1st argument */
lua_rawgeti(L, 1, i); /* 2nd argument */ lua_rawgeti(L, 1, i); /* 2nd argument */
if (lua_call(L, 2, 1) != 0) lua_rawcall(L, 2, 1);
lua_error(L, NULL);
if (!lua_isnil(L, -1)) if (!lua_isnil(L, -1))
return 1; return 1;
lua_pop(L, 1); /* remove nil result */ lua_pop(L, 1); /* remove nil result */
@ -355,7 +353,7 @@ static int luaB_foreach (lua_State *L) {
lua_pushvalue(L, 2); /* function */ lua_pushvalue(L, 2); /* function */
lua_pushvalue(L, -3); /* key */ lua_pushvalue(L, -3); /* key */
lua_pushvalue(L, -3); /* value */ lua_pushvalue(L, -3); /* value */
if (lua_call(L, 2, 1) != 0) lua_error(L, NULL); lua_rawcall(L, 2, 1);
if (!lua_isnil(L, -1)) if (!lua_isnil(L, -1))
return 1; return 1;
lua_pop(L, 2); /* remove value and result */ lua_pop(L, 2); /* remove value and result */
@ -450,7 +448,7 @@ static int sort_comp (lua_State *L, int n, int r) {
lua_pushvalue(L, -2); /* pivot */ lua_pushvalue(L, -2); /* pivot */
lua_rawgeti(L, 1, n); /* a[n] */ lua_rawgeti(L, 1, n); /* a[n] */
} }
if (lua_call(L, 2, 1) != 0) lua_error(L, NULL); lua_rawcall(L, 2, 1);
res = !lua_isnil(L, -1); res = !lua_isnil(L, -1);
} }
else { /* a < b? */ else { /* a < b? */
@ -553,8 +551,7 @@ static int deprecated_func (lua_State *L) {
lua_insert(L, 1); /* upvalue is the function to be called */ lua_insert(L, 1); /* upvalue is the function to be called */
lua_getglobals(L); lua_getglobals(L);
lua_insert(L, 2); /* table of globals is 1o argument */ lua_insert(L, 2); /* table of globals is 1o argument */
if (lua_call(L, lua_gettop(L)-1, LUA_MULTRET) != 0) lua_rawcall(L, lua_gettop(L)-1, LUA_MULTRET);
lua_error(L, NULL);
return lua_gettop(L); /* return all results */ return lua_gettop(L); /* return all results */
} }

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@ -1,5 +1,5 @@
/* /*
** $Id: liolib.c,v 1.82 2000/09/12 18:41:55 roberto Exp roberto $ ** $Id: liolib.c,v 1.83 2000/09/13 20:12:14 roberto Exp roberto $
** Standard I/O (and system) library ** Standard I/O (and system) library
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -654,7 +654,7 @@ static int errorfb (lua_State *L) {
lua_getglobal(L, LUA_ALERT); lua_getglobal(L, LUA_ALERT);
if (lua_isfunction(L, -1)) { /* avoid loop if _ALERT is not defined */ if (lua_isfunction(L, -1)) { /* avoid loop if _ALERT is not defined */
lua_pushvalue(L, -2); /* error message */ lua_pushvalue(L, -2); /* error message */
lua_call(L, 1, 0); lua_rawcall(L, 1, 0);
} }
return 0; return 0;
} }

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@ -1,5 +1,5 @@
/* /*
** $Id: lstrlib.c,v 1.51 2000/09/05 19:33:32 roberto Exp $ ** $Id: lstrlib.c,v 1.52 2000/09/11 17:38:42 roberto Exp roberto $
** Standard library for string operations and pattern-matching ** Standard library for string operations and pattern-matching
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -457,13 +457,10 @@ static void add_s (lua_State *L, luaL_Buffer *b, struct Capture *cap) {
} }
} }
else { /* is a function */ else { /* is a function */
int status;
int n; int n;
lua_pushvalue(L, 3); lua_pushvalue(L, 3);
n = push_captures(L, cap); n = push_captures(L, cap);
status = lua_call(L, n, 1); lua_rawcall(L, n, 1);
if (status != 0)
lua_error(L, NULL); /* propagate error */
if (lua_isstring(L, -1)) if (lua_isstring(L, -1))
luaL_addvalue(b); /* add return to accumulated result */ luaL_addvalue(b); /* add return to accumulated result */
else else

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@ -1,5 +1,5 @@
/* /*
** $Id: ltests.c,v 1.40 2000/09/05 19:33:32 roberto Exp roberto $ ** $Id: ltests.c,v 1.41 2000/09/11 19:42:57 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation ** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -25,6 +25,7 @@
#include "lstring.h" #include "lstring.h"
#include "ltable.h" #include "ltable.h"
#include "luadebug.h" #include "luadebug.h"
#include "lualib.h"
void luaB_opentests (lua_State *L); void luaB_opentests (lua_State *L);
@ -275,6 +276,19 @@ static int newstate (lua_State *L) {
return 1; return 1;
} }
static int loadlib (lua_State *L) {
lua_State *L1 = (lua_State *)lua_touserdata(L, 1);
switch (*luaL_check_string(L, 2)) {
case 'm': lua_mathlibopen(L1); break;
case 's': lua_strlibopen(L1); break;
case 'i': lua_iolibopen(L1); break;
case 'd': lua_dblibopen(L1); break;
case 'b': lua_baselibopen(L1); break;
default: luaL_argerror(L, 2, "invalid option");
}
return 0;
}
static int closestate (lua_State *L) { static int closestate (lua_State *L) {
luaL_checktype(L, 1, "userdata"); luaL_checktype(L, 1, "userdata");
lua_close((lua_State *)lua_touserdata(L, 1)); lua_close((lua_State *)lua_touserdata(L, 1));
@ -405,7 +419,7 @@ static int testC (lua_State *L) {
else if EQ("call") { else if EQ("call") {
int narg = getnum; int narg = getnum;
int nres = getnum; int nres = getnum;
if (lua_call(L, narg, nres)) lua_error(L, NULL); lua_rawcall(L, narg, nres);
} }
else if EQ("type") { else if EQ("type") {
lua_pushstring(L, lua_type(L, getnum)); lua_pushstring(L, lua_type(L, getnum));
@ -425,6 +439,7 @@ static const struct luaL_reg tests_funcs[] = {
{"listcode", listcode}, {"listcode", listcode},
{"liststrings", liststrings}, {"liststrings", liststrings},
{"listlocals", listlocals}, {"listlocals", listlocals},
{"loadlib", loadlib},
{"querystr", string_query}, {"querystr", string_query},
{"querytab", table_query}, {"querytab", table_query},
{"testC", testC}, {"testC", testC},

3
lua.h
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lua.h,v 1.67 2000/09/11 19:42:57 roberto Exp roberto $ ** $Id: lua.h,v 1.68 2000/09/12 13:46:59 roberto Exp roberto $
** Lua - An Extensible Extension Language ** Lua - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: lua@tecgraf.puc-rio.br ** e-mail: lua@tecgraf.puc-rio.br
@ -128,6 +128,7 @@ int lua_ref (lua_State *L, int lock);
** "do" functions (run Lua code) ** "do" functions (run Lua code)
*/ */
int lua_call (lua_State *L, int nargs, int nresults); int lua_call (lua_State *L, int nargs, int nresults);
void lua_rawcall (lua_State *L, int nargs, int nresults);
int lua_dofile (lua_State *L, const char *filename); int lua_dofile (lua_State *L, const char *filename);
int lua_dostring (lua_State *L, const char *str); int lua_dostring (lua_State *L, const char *str);
int lua_dobuffer (lua_State *L, const char *buff, size_t size, int lua_dobuffer (lua_State *L, const char *buff, size_t size,