int main(int argc, char *argv[]) {
if(argc < 2) {
fprintf(stderr, "Usage: %s input.txt [output.txt]\n", argv[0]);
exit(EXIT_PARAMETER_ERROR);
}
if((yyin = fopen(argv[1], "r")) == NULL) {
fprintf(stderr, "Error: file could not be opened.\n");
exit(EXIT_FILE_ERROR);
}
/* Parsing */
// yyparse output stored in extern variable root
yyparse();
// free input and lex buffers
fclose(yyin);
yylex_destroy();
printf("Parse successful.\n");
/* Parsing */
/* Semantic checking */
int semErrors = semCheck(root);
if(semErrors) {
fprintf(stderr, "%d semantic error(s) found.\n", semErrors);
exit(EXIT_SEMANTIC_ERROR);
}
printf("Semantic check successful.\n");
/* Semantic checking */
/* TAC creation */
TAC *tacs = tacGenerateCode(root);
// syntax tree not needed anymore
astDeleteTree(root);
printf("TACs created.\n");
/* TAC creation */
FILE* prog = stdout;
if(argc >= 3)
prog = fopen(argv[2], "w");
tacPrint(prog, tacs);
printf("Program written in file \"%s\"\n", argv[2]);
fclose(prog);
// free tacs and symbol table
tacDeleteList(tacs);
hashClean();
return 0;
}
int hashCleanAll()
{
int i;
for (i = 0; i < HASHSIZE; i++)
if (hashman.hashtab[i] != NULL)
if (hashClean(hashman.hashtab[i]->file) < 0)
return -1;
return 0;
}
