compiler.c

#include "prelexer.h"
#include "postlexer.h"

#include <stdlib.h>

#if !(defined __COMPILER_MINIMAL_REQ__) && (defined __SIZEOF_INT128__)
    #define __COMPILER_MINIMAL_REQ__ 1
#else
    #define __COMPILER_MINIMAL_REQ__ 0
#endif

extern void parse(FILE *in, FILE *out);

int main(int argc, char *argv[]) {
    if (!__COMPILER_MINIMAL_REQ__) {
        fprintf(stderr, "[COMPILER]: Minimal Requirements for Compiler aren't satisfied!\n");
        fprintf(stderr, "There is no int128_t on this machine. Make sure you use 64-bit GCC!\n");
        exit(EXIT_FAILURE);
    }

    if (argc == 3) {
        FILE *in = fopen(argv[1], "r");
        if (in == NULL) {
            fprintf(stderr, "Couldn't open file: %s!\n", argv[1]);
            exit(EXIT_FAILURE);
        }

        char const * const temp_out = "prelexer_temp_out";
        FILE *prelex_out = fopen(temp_out, "w+");
        if (prelex_out == NULL) {
            fprintf(stderr, "Couldn't create temporary files for compiler: %s!\n", temp_out);
            exit(EXIT_FAILURE);
        }

        char const * const asm_out = "asm_out";
        FILE *parse_out = fopen(asm_out, "w+");
        if (parse_out == NULL) {
            fprintf(stderr, "Couldn't create temporary files for compiler: %s!\n", asm_out);
            exit(EXIT_FAILURE);
        }

        FILE *compiler_out = fopen(argv[2], "w+");
        if (compiler_out == NULL) {
            fprintf(stderr, "Couldn't create OUTPUT FILE of compiler: %s!\n", argv[2]);
            exit(EXIT_FAILURE);
        }

        // prelexer
        prelex(in, prelex_out);
        fclose(in);

        // parser
        rewind(prelex_out);
        parse(prelex_out, parse_out);
        fclose(prelex_out);
        remove(temp_out); // comment for debug

        // postlexer
        rewind(parse_out);
        postlex(parse_out, compiler_out);
        fclose(parse_out);
        remove(asm_out);
        fclose(compiler_out);
    } else {
        fprintf(stderr, "WRONG AMOUNT OF INPUT ARGUMENTS!\n");
        exit(EXIT_FAILURE);
    }
}