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storing chunk "sources" instead of "filenames".

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This commit is contained in:
Roberto Ierusalimschy 1999-03-04 18:23:39 -03:00
parent 677188de8a
commit 5a8bb00df4
15 changed files with 91 additions and 86 deletions
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9
lapi.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lapi.c,v 1.39 1999/02/25 19:13:56 roberto Exp roberto $
** $Id: lapi.c,v 1.40 1999/03/01 17:49:04 roberto Exp roberto $
** Lua API
** See Copyright Notice in lua.h
*/
@ -594,18 +594,17 @@ int lua_setlocal (lua_Function func, int local_number)
}
void lua_funcinfo (lua_Object func, char **filename, int *linedefined)
{
void lua_funcinfo (lua_Object func, char **source, int *linedefined) {
if (!lua_isfunction(func))
lua_error("API - `funcinfo' called with a non-function value");
else {
TObject *f = luaA_protovalue(Address(func));
if (normalized_type(f) == LUA_T_PROTO) {
*filename = tfvalue(f)->fileName->str;
*source = tfvalue(f)->source->str;
*linedefined = tfvalue(f)->lineDefined;
}
else {
*filename = "(C)";
*source = "(C)";
*linedefined = -1;
}
}

19
lauxlib.c
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@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.13 1998/09/07 18:59:59 roberto Exp roberto $
** $Id: lauxlib.c,v 1.14 1999/02/25 19:13:56 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@ -34,7 +34,7 @@ void luaL_argerror (int numarg, char *extramsg) {
lua_getobjname(f, &funcname);
numarg -= lua_nups(f);
if (funcname == NULL)
funcname = "(unknown)";
funcname = "?";
if (extramsg == NULL)
luaL_verror("bad argument #%d to function `%.50s'", numarg, funcname);
else
@ -111,3 +111,18 @@ void luaL_verror (char *fmt, ...)
lua_error(buff);
}
void luaL_chunkid (char *out, char *source, int len) {
len -= 13; /* 13 = strlen("string ''...\0") */
if (*source == '@')
sprintf(out, "file `%.*s'", len, source+1);
else if (*source == '(')
strcpy(out, "(C code)");
else {
char *b = strchr(source , '\n'); /* stop string at first new line */
int lim = (b && (b-source)<len) ? b-source : len;
sprintf(out, "string `%.*s'", lim, source);
strcpy(out+lim+(13-5), "...'"); /* 5 = strlen("...'\0") */
}
}

4
lauxlib.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lauxlib.h,v 1.9 1998/06/19 16:14:09 roberto Exp roberto $
** $Id: lauxlib.h,v 1.10 1998/12/28 13:44:54 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@ -46,6 +46,6 @@ int luaL_newbuffer (int size);
void luaL_oldbuffer (int old);
char *luaL_buffer (void);
int luaL_findstring (char *name, char *list[]);
void luaL_chunkid (char *out, char *source, int len);
#endif

4
lbuiltin.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lbuiltin.c,v 1.54 1999/02/23 14:57:28 roberto Exp roberto $
** $Id: lbuiltin.c,v 1.55 1999/03/01 20:22:16 roberto Exp roberto $
** Built-in functions
** See Copyright Notice in lua.h
*/
@ -250,7 +250,7 @@ static void luaB_dostring (void) {
char *s = luaL_check_lstr(1, &l);
if (*s == ID_CHUNK)
lua_error("`dostring' cannot run pre-compiled code");
if (lua_dobuffer(s, l, luaL_opt_string(2, NULL)) == 0)
if (lua_dobuffer(s, l, luaL_opt_string(2, s)) == 0)
if (luaA_passresults() == 0)
lua_pushuserdata(NULL); /* at least one result to signal no errors */
}

14
ldblib.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ldblib.c,v 1.3 1999/01/15 11:36:28 roberto Exp roberto $
** $Id: ldblib.c,v 1.4 1999/02/04 17:47:59 roberto Exp roberto $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
@ -33,24 +33,24 @@ static void settabsi (lua_Object t, char *i, int v) {
static lua_Object getfuncinfo (lua_Object func) {
lua_Object result = lua_createtable();
char *name;
char *str;
int line;
lua_funcinfo(func, &name, &line);
lua_funcinfo(func, &str, &line);
if (line == -1) /* C function? */
settabss(result, "kind", "C");
else if (line == 0) { /* "main"? */
settabss(result, "kind", "chunk");
settabss(result, "name", name);
settabss(result, "source", str);
}
else { /* Lua function */
settabss(result, "kind", "Lua");
settabsi(result, "def_line", line);
settabss(result, "def_chunk", name);
settabss(result, "source", str);
}
if (line != 0) { /* is it not a "main"? */
char *kind = lua_getobjname(func, &name);
char *kind = lua_getobjname(func, &str);
if (*kind) {
settabss(result, "name", name);
settabss(result, "name", str);
settabss(result, "where", kind);
}
}

47
ldo.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ldo.c,v 1.35 1999/02/22 19:23:36 roberto Exp roberto $
** $Id: ldo.c,v 1.36 1999/02/26 15:48:55 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@ -108,7 +108,7 @@ void luaD_callHook (StkId base, TProtoFunc *tf, int isreturn)
else {
TObject *f = L->stack.stack+base-1;
if (tf)
(*L->callhook)(Ref(f), tf->fileName->str, tf->lineDefined);
(*L->callhook)(Ref(f), tf->source->str, tf->lineDefined);
else
(*L->callhook)(Ref(f), "(C)", -1);
}
@ -355,23 +355,27 @@ void luaD_gcIM (TObject *o)
}
int lua_dofile (char *filename)
{
#define MAXFILENAME 200 /* maximum part of a file name kept */
int lua_dofile (char *filename) {
ZIO z;
int status;
int c;
int bin;
char name[MAXFILENAME+2]; /* +2 for '@' and '\0' */
FILE *f = (filename == NULL) ? stdin : fopen(filename, "r");
if (f == NULL)
return 2;
if (filename == NULL)
filename = "(stdin)";
strcpy(name, "@stdin");
else
sprintf(name, "@%.*s", MAXFILENAME, filename);
c = fgetc(f);
ungetc(c, f);
bin = (c == ID_CHUNK);
if (bin)
f = freopen(filename, "rb", f); /* set binary mode */
luaZ_Fopen(&z, f, filename);
luaZ_Fopen(&z, f, name);
status = do_main(&z, bin);
if (f != stdin)
fclose(f);
@ -379,40 +383,15 @@ int lua_dofile (char *filename)
}
#define SIZE_PREF 20 /* size of string prefix to appear in error messages */
#define SSIZE_PREF "20"
static void build_name (char *str, char *name) {
if (str == NULL || *str == ID_CHUNK)
strcpy(name, "(buffer)");
else {
char *temp;
sprintf(name, "(dostring) >> \"%." SSIZE_PREF "s\"", str);
temp = strchr(name, '\n');
if (temp) { /* end string after first line */
*temp = '"';
*(temp+1) = 0;
}
}
}
int lua_dostring (char *str) {
return lua_dobuffer(str, strlen(str), NULL);
return lua_dobuffer(str, strlen(str), str);
}
int lua_dobuffer (char *buff, int size, char *name) {
char newname[SIZE_PREF+25];
ZIO z;
int status;
if (name==NULL) {
build_name(buff, newname);
name = newname;
}
if (!name) name = "?";
luaZ_mopen(&z, buff, size, name);
status = do_main(&z, buff[0]==ID_CHUNK);
return status;
return do_main(&z, buff[0]==ID_CHUNK);
}

4
lfunc.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lfunc.c,v 1.8 1997/12/15 16:17:20 roberto Exp roberto $
** $Id: lfunc.c,v 1.9 1998/06/19 16:14:09 roberto Exp roberto $
** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h
*/
@ -31,7 +31,7 @@ TProtoFunc *luaF_newproto (void)
TProtoFunc *f = luaM_new(TProtoFunc);
f->code = NULL;
f->lineDefined = 0;
f->fileName = NULL;
f->source = NULL;
f->consts = NULL;
f->nconsts = 0;
f->locvars = NULL;

4
lgc.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 1.21 1999/02/25 15:16:26 roberto Exp roberto $
** $Id: lgc.c,v 1.22 1999/02/26 15:48:55 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -162,7 +162,7 @@ static void protomark (TProtoFunc *f) {
if (!f->head.marked) {
int i;
f->head.marked = 1;
strmark(f->fileName);
strmark(f->source);
for (i=0; i<f->nconsts; i++)
markobject(&f->consts[i]);
}

22
liolib.c
View File

@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 1.30 1999/02/05 15:22:43 roberto Exp roberto $
** $Id: liolib.c,v 1.31 1999/02/22 14:17:24 roberto Exp roberto $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@ -455,6 +455,10 @@ static void io_debug (void) {
#define MESSAGESIZE 150
#define MAXMESSAGE (MESSAGESIZE*10)
#define MAXSRC 40
static void errorfb (void) {
char buff[MAXMESSAGE];
int level = 1; /* skip level 0 (it's this function) */
@ -464,8 +468,10 @@ static void errorfb (void) {
char *name;
int currentline;
char *chunkname;
char buffchunk[MAXSRC];
int linedefined;
lua_funcinfo(func, &chunkname, &linedefined);
luaL_chunkid(buffchunk, chunkname, MAXSRC);
if (level == 2) strcat(buff, "Active Stack:\n");
strcat(buff, "\t");
if (strlen(buff) > MAXMESSAGE-MESSAGESIZE) {
@ -474,26 +480,24 @@ static void errorfb (void) {
}
switch (*lua_getobjname(func, &name)) {
case 'g':
sprintf(buff+strlen(buff), "function %.50s", name);
sprintf(buff+strlen(buff), "function `%.50s'", name);
break;
case 't':
sprintf(buff+strlen(buff), "`%.50s' tag method", name);
break;
default: {
if (linedefined == 0)
sprintf(buff+strlen(buff), "main of %.50s", chunkname);
else if (linedefined < 0)
sprintf(buff+strlen(buff), "%.50s", chunkname);
else
sprintf(buff+strlen(buff), "function (%.50s:%d)",
chunkname, linedefined);
sprintf(buff+strlen(buff), "main of %.50s", buffchunk);
else if (linedefined > 0)
sprintf(buff+strlen(buff), "function <%d:%.50s>",
linedefined, buffchunk);
chunkname = NULL;
}
}
if ((currentline = lua_currentline(func)) > 0)
sprintf(buff+strlen(buff), " at line %d", currentline);
if (chunkname)
sprintf(buff+strlen(buff), " [in chunk %.50s]", chunkname);
sprintf(buff+strlen(buff), " [in %.50s]", buffchunk);
strcat(buff, "\n");
}
func = lua_rawgetglobal("_ALERT");

14
llex.c
View File

@ -1,5 +1,5 @@
/*
** $Id: llex.c,v 1.29 1999/02/25 15:17:01 roberto Exp roberto $
** $Id: llex.c,v 1.30 1999/02/25 19:13:56 roberto Exp roberto $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@ -32,8 +32,7 @@ char *reserved [] = {"and", "do", "else", "elseif", "end", "function",
"until", "while"};
void luaX_init (void)
{
void luaX_init (void) {
int i;
for (i=0; i<(sizeof(reserved)/sizeof(reserved[0])); i++) {
TaggedString *ts = luaS_new(reserved[i]);
@ -42,11 +41,16 @@ void luaX_init (void)
}
#define MAXSRC 40
void luaX_syntaxerror (LexState *ls, char *s, char *token) {
char buff[MAXSRC];
luaL_chunkid(buff, zname(ls->lex_z), MAXSRC);
if (token[0] == '\0')
token = "<eof>";
luaL_verror("%.100s;\n last token read: `%.50s' at line %d in chunk `%.50s'",
s, token, ls->linenumber, zname(ls->lex_z));
luaL_verror("%.100s;\n last token read: `%.50s' "
"at line %d from %.50s",
s, token, ls->linenumber, buff);
}

4
lobject.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lobject.h,v 1.25 1999/01/04 13:37:07 roberto Exp roberto $
** $Id: lobject.h,v 1.26 1999/02/03 13:53:48 roberto Exp roberto $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@ -128,7 +128,7 @@ typedef struct TProtoFunc {
int nconsts;
Byte *code; /* ends with opcode ENDCODE */
int lineDefined;
TaggedString *fileName;
TaggedString *source;
struct LocVar *locvars; /* ends with line = -1 */
} TProtoFunc;

10
lparser.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lparser.c,v 1.24 1999/02/25 19:13:56 roberto Exp roberto $
** $Id: lparser.c,v 1.25 1999/02/26 15:48:55 roberto Exp roberto $
** LL(1) Parser and code generator for Lua
** See Copyright Notice in lua.h
*/
@ -534,7 +534,7 @@ static void func_onstack (LexState *ls, FuncState *func) {
}
static void init_state (LexState *ls, FuncState *fs, TaggedString *filename) {
static void init_state (LexState *ls, FuncState *fs, TaggedString *source) {
TProtoFunc *f = luaF_newproto();
fs->prev = ls->fs; /* linked list of funcstates */
ls->fs = fs;
@ -544,7 +544,7 @@ static void init_state (LexState *ls, FuncState *fs, TaggedString *filename) {
fs->nupvalues = 0;
fs->lastsetline = 0;
fs->f = f;
f->fileName = filename;
f->source = source;
fs->pc = 0;
f->code = NULL;
fs->nvars = (L->debug) ? 0 : -1; /* flag no debug information? */
@ -828,7 +828,7 @@ static int funcname (LexState *ls, vardesc *v) {
static void body (LexState *ls, int needself, int line) {
/* body -> '(' parlist ')' chunk END */
FuncState newfs;
init_state(ls, &newfs, ls->fs->f->fileName);
init_state(ls, &newfs, ls->fs->f->source);
newfs.f->lineDefined = line;
check(ls, '(');
if (needself)
@ -1140,7 +1140,7 @@ static int funcparams (LexState *ls, int slf) {
luaX_error(ls, "function arguments expected");
break;
}
code_byte(fs, CALLFUNC);
code_byte(fs, CALL);
code_byte(fs, 0); /* save space for nresult */
code_byte(fs, (Byte)(nparams+slf));
return fs->pc-1;

4
luadebug.h
View File

@ -1,5 +1,5 @@
/*
** $Id: luadebug.h,v 1.4 1999/01/15 13:11:22 roberto Exp roberto $
** $Id: luadebug.h,v 1.5 1999/02/04 17:47:59 roberto Exp roberto $
** Debugging API
** See Copyright Notice in lua.h
*/
@ -17,7 +17,7 @@ typedef void (*lua_LHFunction) (int line);
typedef void (*lua_CHFunction) (lua_Function func, char *file, int line);
lua_Function lua_stackedfunction (int level);
void lua_funcinfo (lua_Object func, char **filename, int *linedefined);
void lua_funcinfo (lua_Object func, char **source, int *linedefined);
int lua_currentline (lua_Function func);
char *lua_getobjname (lua_Object o, char **name);

4
lundump.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lundump.c,v 1.5 1998/12/15 14:59:43 roberto Exp $
** $Id: lundump.c,v 1.6 1998/12/27 20:23:22 roberto Exp roberto $
** load bytecodes from files
** See Copyright Notice in lua.h
*/
@ -161,7 +161,7 @@ static TProtoFunc* LoadFunction (ZIO* Z)
{
TProtoFunc* tf=luaF_newproto();
tf->lineDefined=LoadWord(Z);
tf->fileName=LoadTString(Z);
tf->source=LoadTString(Z);
tf->code=LoadCode(Z);
LoadLocals(tf,Z);
LoadConstants(tf,Z);

14
manual.tex
View File

@ -1,4 +1,4 @@
% $Id: manual.tex,v 1.23 1999/02/12 19:23:02 roberto Exp roberto $
% $Id: manual.tex,v 1.24 1999/02/25 19:13:56 roberto Exp roberto $
\documentclass[11pt]{article}
\usepackage{fullpage,bnf}
@ -41,7 +41,7 @@ Waldemar Celes
\tecgraf\ --- Computer Science Department --- PUC-Rio
}
%\date{\small \verb$Date: 1999/02/12 19:23:02 $}
%\date{\small \verb$Date: 1999/02/25 19:13:56 $}
\maketitle
@ -2926,12 +2926,16 @@ it accepts only a handle returned by
Three other functions produce extra information about a function:
\begin{verbatim}
void lua_funcinfo (lua_Object func, char **filename, int *linedefined);
void lua_funcinfo (lua_Object func, char **source, int *linedefined);
int lua_currentline (lua_Function func);
char *lua_getobjname (lua_Object o, char **name);
\end{verbatim}
\verb|lua_funcinfo| gives the file name and the line where the
given function has been defined.
\verb|lua_funcinfo| gives the source and the line where the
given function has been defined:
If the function was defined in a string,
\verb|source| is that string;
If the function was defined in a file,
\verb|source| starts with a \verb|@| followed by the file name.
If the ``function'' is in fact the main code of a chunk,
then \verb|linedefined| is 0.
If the function is a C function,