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parser.c
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/**
* Predmet: IFJ / IAL
* Projekt: Implementace interpretu imperativniho jazyka IFJ13
* Tym: 099
* Varianta: a/2/I
* Soubor: parser.c
* Autori: Vlcek Michael <[email protected]>
* Svacek Radim <[email protected]>
* Blanco Roman <[email protected]>
* Micka Vojtech <[email protected]>
* Wolfert Richard <[email protected]>
*/
#include "scanner.h"
#include "parser.h"
#include <stdlib.h>
#include <string.h>
#include <limits.h>
char table[9][9];
string *s;
int c;
t_stItemV *VTableRootGlob, *VTableCurrent, CurrentTablePtr;
t_stItemF *FTableRootGlob;
tInstList *InstListGlob, *InstListCurrent;
int
parse (t_stItemV * VTableRoot, t_stItemF * FTableRoot,
tInstList * GlobalInstList)
{
//Prevzatie datovych struktur
CurrentTablePtr = NULL;
VTableRootGlob = VTableRoot;
FTableRootGlob = FTableRoot;
InstListGlob = GlobalInstList;
expr_analysis_init (&table);
int result;
VTableCurrent = VTableRootGlob;
InstListCurrent = InstListGlob;
// Inicializacia struktur pre scanner
if ((s = malloc (sizeof (string))) == NULL)
return RET_ERR;
if (init_string (s) == RET_ERR)
{
free (s);
return RET_ERR;
}
// Kontrola uvodneho znaku
if ((c = get_token (f, s)) != php_entry)
{
if (c == SYNT_ERR)
{
free_string (s);
free (s);
return SYNT_ERR;
}
if (c == LEX_ERR)
{
free_string (s);
free (s);
return LEX_ERR;
}
if (c == RET_ERR)
{
free_string (s);
free (s);
return RET_ERR;
}
free_string (s);
free (s);
return SYNT_ERR;
}
//Syntakticka analyza programu
result = program ();
//Kontrola ci boli vsetky funkcie deklarovane
if (stTableFCheckInstListPtr (*FTableRootGlob) == SEM_ERR)
{
free_string (s);
free (s);
return SEM_ERR;
}
// Uvolnění paměti po scanneru
free_string (s);
free (s);
return result;
}
//Funckia systematicky generuje retazce podla indexu, ktory dostane
//Tieto retazce sa vyuzivaju na ukladanie dat potrebnych pre interpretaciu
char *
GenerateStringExpr (int index)
{
int indexSize = snprintf (NULL, 0, "%d", index) + 1;
char *num = malloc (sizeof (char) * indexSize);
sprintf (num, "%d", index);
char *str = malloc (sizeof (char) * (3 + indexSize));
if ((num == NULL) || (str == NULL))
return NULL;
str[0] = 'G';
str[1] = 'E';
str[2] = 'N';
for (int i = 0; i < indexSize; i++)
{
str[3 + i] = num[i];
}
free (num);
str[2 + indexSize] = '\0';
return str;
}
//To iste ako funkcia vyssie, s rozdielom nazvu generujuceho stringu
char *
GenerateString (int index)
{
int indexSize = snprintf (NULL, 0, "%d", index) + 1;
char *num = malloc (sizeof (char) * indexSize);
sprintf (num, "%d", index);
char *str = malloc (sizeof (char) * (3 + indexSize));
if ((num == NULL) || (str == NULL))
return NULL;
str[0] = 'P';
str[1] = 'A';
str[2] = 'R';
for (int i = 0; i < indexSize; i++)
{
str[3 + i] = num[i];
}
free (num);
str[2 + indexSize] = '\0';
return str;
}
// Funkcia vlozi danu instrukciu na koniec globalneho zoznamu
int
GenerateInstruction (int inst_type, void *addr1, void *addr2, void *result)
{
tInst instruction;
instruction.type = inst_type;
instruction.adr1 = addr1;
instruction.adr2 = addr2;
instruction.result = result;
if (listInsertInst (InstListCurrent, instruction) == RET_ERR)
return RET_ERR;
return SYNT_OK;
}
// To iste ako vyssie, s pouzitim konkretneho zoznamu
int
GenerateInstructionList (int inst_type, void *addr1, void *addr2,
void *result, tInstList * InstList)
{
tInst instruction;
instruction.type = inst_type;
instruction.adr1 = addr1;
instruction.adr2 = addr2;
instruction.result = result;
if (listInsertInst (InstList, instruction) == RET_ERR)
return RET_ERR;
return SYNT_OK;
}
void
expr_analysis_init (char (*table)[9][9])
{
/* table [top zasobniku][akt. vstup] */
//Inicializacia tabulky prechodov
(*table)[0][0] = RIGHT_ARROW;
(*table)[0][1] = RIGHT_ARROW;
(*table)[0][2] = RIGHT_ARROW;
(*table)[0][3] = RIGHT_ARROW;
(*table)[0][4] = RIGHT_ARROW;
(*table)[0][5] = LEFT_ARROW;
(*table)[0][6] = RIGHT_ARROW;
(*table)[0][7] = RIGHT_ARROW;
(*table)[0][8] = LEFT_ARROW;
(*table)[1][0] = LEFT_ARROW;
(*table)[1][1] = RIGHT_ARROW;
(*table)[1][2] = RIGHT_ARROW;
(*table)[1][3] = RIGHT_ARROW;
(*table)[1][4] = RIGHT_ARROW;
(*table)[1][5] = LEFT_ARROW;
(*table)[1][6] = RIGHT_ARROW;
(*table)[1][7] = RIGHT_ARROW;
(*table)[1][8] = LEFT_ARROW;
(*table)[2][0] = LEFT_ARROW;
(*table)[2][1] = RIGHT_ARROW;
(*table)[2][2] = RIGHT_ARROW;
(*table)[2][3] = RIGHT_ARROW;
(*table)[2][4] = RIGHT_ARROW;
(*table)[2][5] = LEFT_ARROW;
(*table)[2][6] = RIGHT_ARROW;
(*table)[2][7] = RIGHT_ARROW;
(*table)[2][8] = LEFT_ARROW;
(*table)[3][0] = LEFT_ARROW;
(*table)[3][1] = LEFT_ARROW;
(*table)[3][2] = LEFT_ARROW;
(*table)[3][3] = RIGHT_ARROW;
(*table)[3][4] = RIGHT_ARROW;
(*table)[3][5] = LEFT_ARROW;
(*table)[3][6] = RIGHT_ARROW;
(*table)[3][7] = RIGHT_ARROW;
(*table)[3][8] = LEFT_ARROW;
(*table)[4][0] = LEFT_ARROW;
(*table)[4][1] = LEFT_ARROW;
(*table)[4][2] = LEFT_ARROW;
(*table)[4][3] = LEFT_ARROW;
(*table)[4][4] = RIGHT_ARROW;
(*table)[4][5] = LEFT_ARROW;
(*table)[4][6] = RIGHT_ARROW;
(*table)[4][7] = RIGHT_ARROW;
(*table)[4][8] = LEFT_ARROW;
(*table)[5][0] = LEFT_ARROW;
(*table)[5][1] = LEFT_ARROW;
(*table)[5][2] = LEFT_ARROW;
(*table)[5][3] = LEFT_ARROW;
(*table)[5][4] = LEFT_ARROW;
(*table)[5][5] = LEFT_ARROW;
(*table)[5][6] = EQUALITY;
(*table)[5][7] = EXCLAMATION;
(*table)[5][8] = LEFT_ARROW;
(*table)[6][0] = RIGHT_ARROW;
(*table)[6][1] = RIGHT_ARROW;
(*table)[6][2] = RIGHT_ARROW;
(*table)[6][3] = RIGHT_ARROW;
(*table)[6][4] = RIGHT_ARROW;
(*table)[6][5] = EXCLAMATION;
(*table)[6][6] = RIGHT_ARROW;
(*table)[6][7] = RIGHT_ARROW;
(*table)[6][8] = EXCLAMATION;
(*table)[7][0] = LEFT_ARROW;
(*table)[7][1] = LEFT_ARROW;
(*table)[7][2] = LEFT_ARROW;
(*table)[7][3] = LEFT_ARROW;
(*table)[7][4] = LEFT_ARROW;
(*table)[7][5] = LEFT_ARROW;
(*table)[7][6] = DOLLAR_SIGN;
(*table)[7][7] = DOLLAR_SIGN;
(*table)[7][8] = LEFT_ARROW;
(*table)[8][0] = RIGHT_ARROW;
(*table)[8][1] = RIGHT_ARROW;
(*table)[8][2] = RIGHT_ARROW;
(*table)[8][3] = RIGHT_ARROW;
(*table)[8][4] = RIGHT_ARROW;
(*table)[8][5] = EXCLAMATION;
(*table)[8][6] = RIGHT_ARROW;
(*table)[8][7] = RIGHT_ARROW;
(*table)[8][8] = EXCLAMATION;
}
int
program ()
{
//Nonterminal MAIN
// Na zaklade vstupneho tokenu rozhodneme o aku konstrukciu pojde
while ((c = get_token (f, s)) != RET_ERR)
{
switch (c)
{
case variable: //premenna
if ((c = StateID ()) == SYNT_ERR)
return SYNT_ERR;
if (c == SEM_ERR)
return SEM_ERR;
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
if (c == SEM_ERR_MISS_PAR)
return SEM_ERR_MISS_PAR;
break;
case kw_if: // if
if ((c = StateIf ()) == SYNT_ERR)
return SYNT_ERR;
if (c == SEM_ERR)
return SEM_ERR;
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
break;
case kw_while: //while
if ((c = StateWhile ()) == SYNT_ERR)
return SYNT_ERR;
if (c == SEM_ERR)
return SEM_ERR;
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
break;
case kw_function: //function
if ((c = StateFunction ()) == SYNT_ERR)
return SYNT_ERR;
if (c == SEM_ERR)
return SEM_ERR;
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
if (c == SEM_ERR_OTHER)
return SEM_ERR_OTHER;
if (c == SEM_ERR_MISS_PAR)
return SEM_ERR_MISS_PAR;
VTableCurrent = VTableRootGlob;
InstListCurrent = InstListGlob;
break;
case kw_return: //return, koniec programu
if (StateReturn () == SYNT_ERR)
return SYNT_ERR;
if (c == RET_ERR)
return RET_ERR;
if (c == SEM_ERR)
return SEM_ERR;
if (c == LEX_ERR)
return LEX_ERR;
if (c != semicolon)
return SYNT_ERR;
if (GenerateInstruction (INST_RETURN, NULL, NULL, NULL) == RET_ERR)
return RET_ERR;
break;
case semicolon:
break;
case EOF:
//Vygeneruje sa zaverecny return, posledna instrukcia v programe
if (GenerateInstruction (INST_RETURN, NULL, NULL, NULL) == RET_ERR)
return RET_ERR;
return SYNT_OK;
case LEX_ERR:
return LEX_ERR;
break;
default:
return SYNT_ERR; //Syntakticka chyba
}
}
return RET_ERR;
}
//Jedna sa o Prikaz priradenia
//Musime rozhodnut ci sa jedna o vyraz
//alebo volanie funkcie
int
StateID ()
{
int retV;
// Identifikator sa vyhlada v tabulke
// Pripadne sa tam vlozi --DOIMPLEMENTOVAT
//pravidlo, ID -> "=" -> "Vyraz" OR FuncID(); -> ";"
// Vlozenie noveho prvko do tabulky symbolov premennych
t_stItemV LValueItem, RetValueItem;
if (stInsertV (VTableCurrent, s->strg, type_undef, 0, 0, NULL, false) ==
RET_ERR)
return RET_ERR;
if ((LValueItem = stSearchV (VTableCurrent, s->strg)) == NULL)
return RET_ERR;
if ((c = get_token (f, s)) != assign)
{ //Chybovy stav
if (c == LEX_ERR)
return LEX_ERR;
return SYNT_ERR;
}
//Rozhodneme ci sa jedna o volanie funkcie, alebo moze ist o vyraz
if ((c = get_token (f, s)) != identificator)
{
if (c == RET_ERR)
return RET_ERR;
if (c == LEX_ERR)
return LEX_ERR;
//Zistime ci moze ist o vyraz
if (!
((c == variable) || (c == const_true) || (c == const_false)
|| (c == const_null) || (c == int_num) || (c == double_num)
|| (c == string_literal) || (c == left_parent)))
return SYNT_ERR;
//Zavolame analyzu vyrazu
if ((retV = StateExpression ()) != SYNT_OK)
{
if (retV == RET_ERR)
return RET_ERR;
if (retV == LEX_ERR)
return LEX_ERR;
if (retV == SYNT_ERR)
return SYNT_ERR;
if (retV == SEM_ERR)
return SEM_ERR;
}
//Instrukcia priradenia vysledku vyrazu
if (GenerateInstruction
(INST_LOAD, "ExpressionResult", NULL, LValueItem->Key) == RET_ERR)
return RET_ERR;
}
else
{ // Ide o volanie funkcie
if ((retV = StateFunctionCall ()) != SYNT_OK)
{
if (retV == RET_ERR)
return RET_ERR;
if (retV == LEX_ERR)
return LEX_ERR;
if (retV == SYNT_ERR)
return SYNT_ERR;
if (retV == SEM_ERR)
return SEM_ERR;
if (retV == SEM_ERR_MISS_PAR)
return SEM_ERR_MISS_PAR;
}
// Priradenie navratovej hodnoty
if ((RetValueItem = stSearchV (VTableRootGlob, "ReturnValue")) == NULL)
return RET_ERR;
//Vygenerujeme instrukciu, ktorou sa ziska navratova hodnota funkcie
if (GenerateInstruction
(INST_GTOLLOAD, RetValueItem, NULL, LValueItem->Key) == RET_ERR)
return RET_ERR;
}
if (c != semicolon)
{
if (c == RET_ERR)
return RET_ERR;
if (c == LEX_ERR)
return LEX_ERR;
return SYNT_ERR;
}
return SYNT_OK; //Syntax priradenia je v poriadku
}
// Jedna sa o volanie funkcie v programe
int
StateFunctionCall ()
{
int counter = 0;
t_stItemF HelpItem, HelpItem2, FunctionPtr;
t_stItemV CurrentOperand, CurrentTarget;
char *parameters;
//Otestujeme ci sa funkcia nachadza v tabulke
if ((HelpItem = stSearchF (FTableRootGlob, s->strg)) == NULL)
//Funkcia sa nenachadza v tabulke, je treba ju tam pridat
{
if (stInsertF (FTableRootGlob, s->strg, 0, NULL, NULL) == RET_ERR)
return RET_ERR;
if ((HelpItem2 = stSearchF (FTableRootGlob, s->strg)) == NULL)
return RET_ERR;
FunctionPtr = HelpItem2;
}
else
{ //Funkcia sa v tabulke nachadza
FunctionPtr = HelpItem;
}
//Musi nasledovat lava zatvorka a dalej vstupne parametre
if ((c = get_token (f, s)) != left_parent)
{
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
return SYNT_ERR;
}
while ((c = get_token (f, s)) != LEX_ERR)
{
if (c == RET_ERR)
return RET_ERR;
if ((c == right_parent) && counter == 0) //Zoznam parametrov je prazdny
{
if (HelpItem != NULL) //funkcia bola pred tym definovana
{
if (counter < (HelpItem->paramCount)) //pocet parametrov je mensi ako minimaly zisteny pocet
{
if ((HelpItem->instListPtr) != NULL)
{ //Semanticka chyba, funkcia bola definovana
//a volame ju s mensim poctom parametrov
return SEM_ERR_MISS_PAR;
}
else
{ //Ulozime najmensi zisteny pocet parametrov
HelpItem->paramCount = counter;
}
}
}
else //funkciu volame s 0 parametrami
{
FunctionPtr->paramCount = 0;
}
//Vygenerujeme zarazku za parametre
if (stInsertV
(VTableCurrent, "UNDEF", type_end_par, 0, 0, NULL,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter + 1)) == NULL)
return RET_ERR;
if ((CurrentOperand = stSearchV (VTableCurrent, "UNDEF")) == NULL)
return RET_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
if (GenerateInstruction (INST_CALL, NULL, NULL, FunctionPtr) ==
RET_ERR)
return RET_ERR;
c = get_token (f, s); //nacitame dalsi token pre volajucu funkciu
return SYNT_OK; //V poriadku (0 parametrov)
}
counter++; //zvysime pocidaldo zistenych parametrov
// podmienka, ktora zistuje ci sa jedna o platny
// vstupny paremeter funkcie
if ((c == variable) || (c == int_num) || (c == double_num) ||
(c == string_literal) || (c == const_null) || (c == const_true) ||
(c == const_false))
{
switch (c)
{
// JEDNA SA O PARAMETER NAZVU PREMENNEJ
case variable:
//test ci vstupna premenna bola deklarovana
if (stInsertV
(VTableCurrent, s->strg, type_undef, 0, 0, NULL,
false) == RET_ERR)
return RET_ERR;
CurrentOperand = stSearchV (VTableCurrent, s->strg);
// Polozka sa nenachadza v lokalnej TS
// Nikdy pred tym nebola pouzita ako L-hodnota a preto nie je mozne
// aby bola definovana
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_undef, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
//vygenerovanie instrukcie, kde sa ulozi parameter n
// do tabulky symbolov s nazvom "par"+"n"
free (parameters);
parameters = NULL;
//Pouzijeme instrukciu na presun z lokalnej do globalnej tabulky symbolov
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
// JEDNA SA O PARAMETER INTEGER
// Zvysok je na rovnakom principe ako parameter premennej
case int_num:
if (stInsertV
(VTableCurrent, s->strg, type_int, atoi (s->strg), 0, NULL,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return RET_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
case double_num:
if (stInsertV
(VTableCurrent, s->strg, type_double, 0, atof (s->strg),
NULL, false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return RET_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
case string_literal:
if (stInsertV
(VTableCurrent, s->strg, type_string, 0, 0, s->strg,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return SEM_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
case const_null:
if (stInsertV
(VTableCurrent, s->strg, type_null, 0, 0, NULL,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return SEM_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
case const_true:
if (stInsertV
(VTableCurrent, s->strg, type_boolean, 0, 0, NULL,
true) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return SEM_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
case const_false:
if (stInsertV
(VTableCurrent, s->strg, type_boolean, 0, 0, NULL,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, s->strg)) == NULL)
return SEM_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, CurrentOperand->Key, NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
break;
default:
return SYNT_ERR;
}
//Zistili sme platny parameter
// Musi nasledovat ciarka alebo prava zatvorka
if ((c = get_token (f, s)) != comma)
{
if (c == LEX_ERR)
return LEX_ERR;
if (c == RET_ERR)
return RET_ERR;
if (c == right_parent)
{
if ((c = get_token (f, s)) == semicolon)
{
if (HelpItem != NULL)
{
if ((HelpItem->instListPtr) != NULL)
{ //funkcia bola definovana a sucastne ma menej parametrov
//jedna sa o semanticku chybu
if (counter < HelpItem->paramCount)
return SEM_ERR_MISS_PAR;
}
else
{ //Ulozime najmensi zisteny pocet parametrov
if (counter < HelpItem->paramCount)
HelpItem->paramCount = counter;
}
}
else
{
FunctionPtr->paramCount = counter;
}
//NAKONIEC VLOZIME UKONCOVACI PARAMETER TYPU type_end_par
if (stInsertV
(VTableCurrent, "UNDEF", type_end_par, 0, 0, NULL,
false) == RET_ERR)
return RET_ERR;
if ((parameters = GenerateString (counter + 1)) == NULL)
return RET_ERR;
if ((CurrentOperand =
stSearchV (VTableCurrent, "UNDEF")) == NULL)
return RET_ERR;
if (stInsertV
(VTableRootGlob, parameters, type_null, 0, 0, NULL,
false) == RET_ERR)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
if ((CurrentTarget =
stSearchV (VTableRootGlob, parameters)) == NULL)
{
free (parameters);
parameters = NULL;
return RET_ERR;
}
free (parameters);
parameters = NULL;
if (GenerateInstruction
(INST_LTOGLOAD, "UNDEF", NULL,
CurrentTarget) == RET_ERR)
return RET_ERR;
//Syntakticka analyza prebehla v poriadku
//Nagenerujeme si instrukciu, ktora vola danu funkciu
if (GenerateInstruction
(INST_CALL, NULL, NULL, FunctionPtr) == RET_ERR)
return RET_ERR;
return SYNT_OK;
}
else
{
if (c == LEX_ERR)
return LEX_ERR;
return SYNT_ERR;
}
}
else
{
return SYNT_ERR;
}
}
continue;
}
return SYNT_ERR;
}
return LEX_ERR;
}
int
StateIf ()
{
tInstListItem *JumpInst;