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/*
TODO:
using dot with pointers
length of slice/arr with .len
verify size of struct, align of fields
pointers to futurely-declared types
don't allow while {3; 5} (once break is added)
any odd number of "s for a string
modifiable strings:
s := ["sakjdfhkjh ksjdahfkjsd ahs ahdf hsdaf khsadkjfh"];
unicode variable names (cgen support)
allow omission of trailing ; in foo @= fn() {}?
*/
#include "toc.c"
int main(int argc, char **argv) {
#ifdef TOC_DEBUG
test_all();
#endif
if (argc < 2) {
fprintf(stderr, "Please specify an input file.\n");
return EXIT_FAILURE;
}
const char *in_filename = argv[1];
const char *out_filename = "out.c";
for (int i = 2; i < argc-1; i++) {
if (strcmp(argv[i], "-o") == 0)
out_filename = argv[i+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;
ErrCtx err_ctx;
err_ctx.filename = in_filename;
err_ctx.enabled = true;
tokr_create(&t, &file_idents, &err_ctx);
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) */
/* 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;
}
tokr_free_tokens(&t);
/* fprint_parsed_file(stdout, &f); */
/* printf("\n\n-----\n\n"); */
Typer tr;
Evaluator ev;
evalr_create(&ev, &tr);
typer_create(&tr, &ev);
if (!block_enter(NULL, f.stmts, SCOPE_FLAG_CHECK_REDECL)) /* enter global scope */
return false;
if (!types_file(&tr, &f)) {
err_fprint(TEXT_IMPORTANT("Errors occured while determining types.\n"));
return EXIT_FAILURE;
}
parse_printing_after_types = true;
fprint_parsed_file(stdout, &f);
FILE *out = fopen(out_filename, "w");
if (!out) {
err_fprint(TEXT_IMPORTANT("Could not open output file (out.c).\n"));
return EXIT_FAILURE;
}
CGenerator g;
cgen_create(&g, out, &file_idents, &ev);
if (!cgen_file(&g, &f)) {
err_fprint(TEXT_IMPORTANT("Errors occured while generating C code.\n"));
return EXIT_FAILURE;
}
block_exit(NULL, f.stmts); /* exit global scope */
tokr_free(&t);
free(contents);
parser_free(&p);
typer_free(&tr);
evalr_free(&ev);
fclose(out);
/* fclose(h_out); */
idents_free(&file_idents);
}
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