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/*
TODO:
named args
optional params
evaluator (simplify compile time constant expressions)
re-do cgen
*/
#include "toc.c"
int main(int argc, char **argv) {
if (argc < 2) {
fprintf(stderr, "Please specify an input file.\n");
return EXIT_FAILURE;
}
const char *in_filename = argv[1];
FILE *in = fopen(in_filename, "r");
if (!in) {
fprintf(stderr, "Could not open file: %s.\n", argv[1]);
return EXIT_FAILURE;
}
char *contents = err_malloc(4096);
long contents_cap = 4095;
long contents_len = 0;
while (fgets(contents + contents_len, (int)(contents_cap - contents_len), in)) {
contents_len += (long)strlen(contents + contents_len);
if (contents_len >= (long)contents_cap - 1024) {
contents_cap *= 2;
/* allocate +1 so that pointers don't overflow */
contents = err_realloc(contents, (size_t)contents_cap + 1);
}
}
if (ferror(in)) {
fprintf(stderr, "Error reading input file: %s.\n", argv[1]);
return EXIT_FAILURE;
}
fclose(in);
Identifiers file_idents;
idents_create(&file_idents);
Tokenizer t;
tokr_create(&t, &file_idents, in_filename);
if (!tokenize_string(&t, contents)) {
err_fprint(TEXT_IMPORTANT("Errors occured while preprocessing.\n"));
return EXIT_FAILURE;
}
arr_foreach(&t.tokens, Token, token) {
if (token != t.tokens.data)
printf(" ");
fprint_token(stdout, token);
}
printf("\n");
Parser p;
parser_from_tokenizer(&p, &t);
ParsedFile f;
if (!parse_file(&p, &f)) {
err_fprint(TEXT_IMPORTANT("Errors occured while parsing.\n"));
return EXIT_FAILURE;
}
block_enter(NULL, &f.stmts); /* enter global scope */
if (!types_file(&f)) {
err_fprint(TEXT_IMPORTANT("Errors occured while determining types.\n"));
return EXIT_FAILURE;
}
fprint_parsed_file(stdout, &f);
tokr_free(&t);
/* TODO (eventually): use a tmp file (don't overwrite old output if there's an error) */
/* const char *c_out_filename = "out.c"; */
/* const char *h_out_filename = "out.h"; */
/* FILE *c_out = fopen(c_out_filename, "w"); */
/* FILE *h_out = fopen(h_out_filename, "w"); */
/* CGenerator cgen; */
/* cgen_create(&cgen, &file_idents, c_out, h_out, h_out_filename); */
/* if (!cgen_file(&cgen, &f)) { */
/* err_fprint(TEXT_IMPORTANT("Errors occured while generating C code.\n")); */
/* return EXIT_FAILURE; */
/* } */
block_exit(NULL, &f.stmts); /* exit global scope */
free(contents);
/* fclose(c_out); */
/* fclose(h_out); */
idents_free(&file_idents);
}
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