mirror of https://github.com/lua/lua
281 lines
7.2 KiB
C
281 lines
7.2 KiB
C
/*
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** $Id: ltests.c,v 1.5 2000/01/19 12:00:45 roberto Exp roberto $
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** Internal Module for Debugging of the Lua Implementation
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** See Copyright Notice in lua.h
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#define LUA_REENTRANT
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#include "lapi.h"
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#include "lauxlib.h"
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#include "lmem.h"
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#include "lstate.h"
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#include "lstring.h"
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#include "ltable.h"
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#include "lua.h"
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#include "luadebug.h"
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void luaB_opentests (lua_State *L);
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/*
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** The whole module only makes sense with DEBUG on
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*/
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#ifdef DEBUG
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static void mem_query (lua_State *L) {
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lua_pushnumber(L, memdebug_total);
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lua_pushnumber(L, memdebug_numblocks);
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}
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static void hash_query (lua_State *L) {
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lua_Object o = luaL_nonnullarg(L, 1);
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if (lua_getparam(L, 2) == LUA_NOOBJECT) {
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luaL_arg_check(L, ttype(o) == LUA_T_STRING, 1, "string expected");
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lua_pushnumber(L, tsvalue(o)->hash);
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}
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else {
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const Hash *t = avalue(luaL_tablearg(L, 2));
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lua_pushnumber(L, luaH_mainposition(t, o) - t->node);
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}
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}
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static void table_query (lua_State *L) {
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const Hash *t = avalue(luaL_tablearg(L, 1));
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int i = luaL_opt_int(L, 2, -1);
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if (i == -1) {
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lua_pushnumber(L, t->size);
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lua_pushnumber(L, t->firstfree - t->node);
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}
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else if (i < t->size) {
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luaA_pushobject(L, &t->node[i].key);
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luaA_pushobject(L, &t->node[i].val);
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if (t->node[i].next)
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lua_pushnumber(L, t->node[i].next - t->node);
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}
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}
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static void query_strings (lua_State *L) {
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int h = luaL_check_int(L, 1) - 1;
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int s = luaL_opt_int(L, 2, 0) - 1;
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if (s==-1) {
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if (h < NUM_HASHS) {
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lua_pushnumber(L, L->string_root[h].nuse);
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lua_pushnumber(L, L->string_root[h].size);
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}
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}
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else {
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TaggedString *ts = L->string_root[h].hash[s];
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for (ts = L->string_root[h].hash[s]; ts; ts = ts->nexthash) {
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if (ts->constindex == -1) lua_pushstring(L, "<USERDATA>");
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else lua_pushstring(L, ts->str);
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}
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}
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}
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static const char *delimits = " \t\n,;";
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static void skip (const char **pc) {
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while (**pc != '\0' && strchr(delimits, **pc)) (*pc)++;
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}
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static int getnum (const char **pc) {
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int res = 0;
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skip(pc);
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while (isdigit(**pc)) res = res*10 + (*(*pc)++) - '0';
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return res;
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}
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static int getreg (lua_State *L, const char **pc) {
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skip(pc);
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if (*(*pc)++ != 'r') lua_error(L, "`testC' expecting a register");
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return getnum(pc);
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}
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static const char *getname (const char **pc) {
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static char buff[30];
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int i = 0;
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skip(pc);
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while (**pc != '\0' && !strchr(delimits, **pc))
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buff[i++] = *(*pc)++;
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buff[i] = '\0';
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return buff;
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}
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#define EQ(s1) (strcmp(s1, inst) == 0)
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/*
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** function to test the API with C. It interprets a kind of "assembler"
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** language with calls to the API, so the test can be driven by Lua code
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*/
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static void testC (lua_State *L) {
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lua_Object reg[10];
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const char *pc = luaL_check_string(L, 1);
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for (;;) {
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const char *inst = getname(&pc);
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if EQ("") return;
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else if EQ("pushnum") {
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lua_pushnumber(L, getnum(&pc));
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}
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else if EQ("createtable") {
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reg[getreg(L, &pc)] = lua_createtable(L);
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}
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else if EQ("closure") {
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lua_CFunction f = lua_getcfunction(L, lua_getglobal(L, getname(&pc)));
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lua_pushcclosure(L, f, getnum(&pc));
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}
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else if EQ("pop") {
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reg[getreg(L, &pc)] = lua_pop(L);
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}
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else if EQ("getglobal") {
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int n = getreg(L, &pc);
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reg[n] = lua_getglobal(L, getname(&pc));
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}
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else if EQ("rawgetglobal") {
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int n = getreg(L, &pc);
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reg[n] = lua_rawgetglobal(L, getname(&pc));
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}
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else if EQ("ref") {
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lua_pushnumber(L, lua_ref(L, 0));
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reg[getreg(L, &pc)] = lua_pop(L);
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}
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else if EQ("reflock") {
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lua_pushnumber(L, lua_ref(L, 1));
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reg[getreg(L, &pc)] = lua_pop(L);
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}
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else if EQ("getref") {
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int n = getreg(L, &pc);
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reg[n] = lua_getref(L, (int)lua_getnumber(L, reg[getreg(L, &pc)]));
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}
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else if EQ("unref") {
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lua_unref(L, (int)lua_getnumber(L, reg[getreg(L, &pc)]));
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}
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else if EQ("getparam") {
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int n = getreg(L, &pc);
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reg[n] = lua_getparam(L, getnum(&pc)+1); /* skips the command itself */
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}
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else if EQ("getresult") {
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int n = getreg(L, &pc);
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reg[n] = lua_getparam(L, getnum(&pc));
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}
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else if EQ("setglobal") {
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lua_setglobal(L, getname(&pc));
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}
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else if EQ("rawsetglobal") {
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lua_rawsetglobal(L, getname(&pc));
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}
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else if EQ("pushstring") {
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lua_pushstring(L, getname(&pc));
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}
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else if EQ("pushreg") {
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lua_pushobject(L, reg[getreg(L, &pc)]);
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}
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else if EQ("call") {
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if (lua_call(L, getname(&pc))) lua_error(L, NULL);
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}
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else if EQ("gettable") {
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reg[getreg(L, &pc)] = lua_gettable(L);
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}
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else if EQ("rawgettable") {
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reg[getreg(L, &pc)] = lua_rawgettable(L);
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}
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else if EQ("settable") {
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lua_settable(L);
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}
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else if EQ("rawsettable") {
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lua_rawsettable(L);
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}
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else if EQ("tag") {
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lua_pushnumber(L, lua_tag(L, reg[getreg(L, &pc)]));
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}
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else if EQ("type") {
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lua_pushstring(L, lua_type(L, reg[getreg(L, &pc)]));
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}
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else if EQ("nextvar") {
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lua_pushstring(L, lua_nextvar(L, lua_getstring(L, reg[getreg(L, &pc)])));
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}
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else if EQ("next") {
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int n = getreg(L, &pc);
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n = lua_next(L, reg[n], (int)lua_getnumber(L, reg[getreg(L, &pc)]));
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lua_pushnumber(L, n);
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}
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else if EQ("equal") {
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int n1 = getreg(L, &pc);
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int n2 = getreg(L, &pc);
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lua_pushnumber(L, lua_equal(L, reg[n1], reg[n2]));
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}
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else if EQ("pushusertag") {
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int val = getreg(L, &pc);
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int tag = getreg(L, &pc);
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lua_pushusertag(L, (void *)(int)lua_getnumber(L, reg[val]),
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(int)lua_getnumber(L, reg[tag]));
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}
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else if EQ("udataval") {
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int n = getreg(L, &pc);
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lua_pushnumber(L, (int)lua_getuserdata(L, reg[getreg(L, &pc)]));
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reg[n] = lua_pop(L);
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}
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else if EQ("settagmethod") {
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int n = getreg(L, &pc);
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lua_settagmethod(L, (int)lua_getnumber(L, reg[n]), getname(&pc));
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}
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else if EQ("beginblock") {
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lua_beginblock(L);
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}
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else if EQ("endblock") {
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lua_endblock(L);
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}
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else if EQ("newstate") {
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int stacksize = getnum(&pc);
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lua_State *L1 = lua_newstate("stack", stacksize,
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"builtin", getnum(&pc), NULL);
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lua_pushuserdata(L, L1);
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}
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else if EQ("closestate") {
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lua_close(lua_getuserdata(L, reg[getreg(L, &pc)]));
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}
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else if EQ("doremote") {
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lua_Object ol1 = reg[getreg(L, &pc)];
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lua_Object str = reg[getreg(L, &pc)];
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lua_State *L1;
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lua_Object temp;
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int i;
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if (!lua_isuserdata(L, ol1) || !lua_isstring(L, str))
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lua_error(L, "bad arguments for `doremote'");
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L1 = lua_getuserdata(L, ol1);
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lua_dostring(L1, lua_getstring(L, str));
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i = 1;
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while ((temp = lua_getresult(L1, i++)) != LUA_NOOBJECT)
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lua_pushstring(L, lua_getstring(L1, temp));
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}
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else luaL_verror(L, "unknown command in `testC': %.20s", inst);
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}
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}
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static const struct luaL_reg tests_funcs[] = {
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{"hash", hash_query},
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{"querystr", query_strings},
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{"querytab", table_query},
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{"testC", testC},
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{"totalmem", mem_query}
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};
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void luaB_opentests (lua_State *L) {
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luaL_openl(L, tests_funcs);
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}
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#endif
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