misc.c

#include "defs.h"
#include "data.h"
#include "decl.h"

// Miscellaneous functions
// Copyright (c) 2019 Warren Toomey, GPL3

// Ensure that the current token is t,
// and fetch the next token. Otherwise,
// throw an error
void match(int t, char* what) {
    if (Token.token == t) {
        scan(&Token);
    } else {
        printf("%s expected on line %d\n", what, Line);
        exit(1);
    }
}

// Match a semicolon and fetch the next token
void semi(void) {
    match(T_SEMI, ";");
}

// Match an identifier and fetch the next token
void ident(void) {
    match(T_IDENT, "identifier");
}

// Print out fatal messages
void fatal(char* s) {
    fprintf(stderr, "%s on line %d\n", s, Line);
    exit(1);
}

void fatals(char* s1, char* s2) {
    fprintf(stderr, "%s:%s on line %d\n", s1, s2, Line);
    exit(1);
}

void fatald(char* s, int d) {
    fprintf(stderr, "%s:%d on line %d\n", s, d, Line);
    exit(1);
}

void fatalc(char* s, int c) {
    fprintf(stderr, "%s:%c on line %d\n", s, c, Line);
    exit(1);
}