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segfaults fixed. need to verify what is being passed to functions.

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Scarlett
2025-03-31 21:18:21 -04:00
parent 5e01b93af8
commit fac92f62f7
1 changed files with 32 additions and 7 deletions
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39
src/symbol_table.c
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@ -968,10 +968,24 @@ void print_symbol_table(SymbolTable *table, FILE *file_ptr) {
}*/
void print_symbol_table(SymbolTable *table, FILE *file_ptr) {
if (table == NULL) {
printdebug(
"%s[FATAL] passed in NULL table to print_symbol_table",
COLOR_RED);
return;
}
if (table->Parent_Scope != NULL) {
printdebug("%s[WARNING] passed in a non-top level scope to "
"print_symbol_table",
COLOR_ORANGE);
}
if (table->Parent_Scope == NULL) {
fprintf(file_ptr, "%-17s: %-6s : %-6s : %-21s: %-28s\n", "NAME",
"SCOPE", "PARENT", "TYPE", "Extra annotation");
}
TableNode *entrie = table->entries;
fprintf(file_ptr, "-----------------:--------:--------:----------------"
"------:---------"
@ -1213,7 +1227,19 @@ bool typeCheck(char *firstID, char *secondID) {
return false;
}
SymbolTable *getParent(SymbolTable *st) { return st->Parent_Scope; }
SymbolTable *getParent(SymbolTable *st) {
if (st == NULL) {
printdebug("passed a NULL symbol table to getParent function. "
"Invalid.");
return NULL;
}
if (st->Parent_Scope == NULL) {
printdebug("passed a top level scope to getParent function. "
"Invalid.");
return NULL;
}
return st->Parent_Scope;
}
ListOfTable *getChildren(SymbolTable *st) { return st->Children_Scope; }
SymbolTable *getFirstChild(ListOfTable *lt) { return lt->table; }
@ -1222,17 +1248,16 @@ TableNode *getFirstEntry(SymbolTable *st) { return st->entries; }
// Segfaults when passed an invalid table node!
TableNode *getNextEntry(TableNode *tn) {
if (tn == NULL) {
if (tn == NULL) {
printdebug("passed a NULL table node to getNextEntry");
return undefined;
}
if (tn == undefined) {
}
if (tn == undefined) {
printdebug("passed an undefined table node to getNextEntry");
return undefined;
}
return tn->next;
}
return tn->next;
}
// uncomment the below main function along with the headers above for a simple
// standalone test of table and entry creation