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#include "symboltable.h"
extern int lineno; /* from lexical analyser */
SymbolTable symbol_table = {{{{0},0}},MAXSYMBOLS,0};
void addVar(const char name[], int type) {
int count;
for (count = 0; count < symbol_table.size; count++) {
if (!strcmp(symbol_table.entries[count].name, name)) {
printf("semantic error, redefinition of variable %s near line %d\n", name,
lineno);
return;
}
}
if (++symbol_table.size > symbol_table.maxsize) {
printf("too many variables near line %d\n", lineno);
exit(1);
}
strcpy(symbol_table.entries[symbol_table.size - 1].name, name);
symbol_table.entries[symbol_table.size - 1].type = type;
}
void lookup(const char name[]) {
int count;
for (count = 0; count < symbol_table.size; count++) {
if (!strcmp(symbol_table.entries[count].name, name)) {
return;
}
}
printf("No definition of the variable %s near line %d\n", name,
lineno);
}
void display_table(){
int count;
for (count=0;count<symbol_table.size;count++) {
if(symbol_table.entries[count].type == INT)
printf("entier: %s, pos: %d \n", symbol_table.entries[count].name, symbol_table.entries[count].addr);
else
printf("caractere: %s, pos: %d \n", symbol_table.entries[count].name, symbol_table.entries[count].addr);
}
printf("\n");
}
int get_type(const char name[]){
int count;
for (count = 0; count < symbol_table.size; count++) {
if (!strcmp(symbol_table.entries[count].name, name)) {
return symbol_table.entries[count].type;
}
}
return -1;
}
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