test-parsing.c

   1 /*
   2  * Example trivial client program that uses the sparse library
   3  * to tokenize, pre-process and parse a C file, and prints out
   4  * the results.
   5  *
   6  * Copyright (C) 2003 Linus Torvalds, all rights reserved.
   7  */
   8 #include <stdarg.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <ctype.h>
  13 #include <unistd.h>
  14 #include <fcntl.h>
  15
  16 #include "lib.h"
  17 #include "token.h"
  18 #include "parse.h"
  19 #include "symbol.h"
  20
  21 char *includepath[] = {
  22         "/usr/lib/gcc-lib/i386-redhat-linux/3.2.1/include/",
  23 #if 1
  24         "/home/torvalds/v2.5/linux/include/",
  25 #else
  26         "/usr/include/",
  27         "/usr/local/include/",
  28 #endif
  29         "",
  30         NULL
  31 };
  32
  33 static void handle_switch(char *arg)
  34 {
  35 }
  36
  37 int main(int argc, char **argv)
  38 {
  39         int i, fd;
  40         char *filename = NULL;
  41         struct token *token;
  42         struct symbol_list *list = NULL;
  43
  44         // Initialize symbol stream first, so that we can add defines etc
  45         init_symbols();
  46
  47         for (i = 1; i < argc; i++) {
  48                 char *arg = argv[i];
  49                 if (arg[0] == '-') {
  50                         handle_switch(arg+1);
  51                         continue;
  52                 }
  53                 filename = arg;
  54         }
  55
  56
  57         fd = open(filename, O_RDONLY);
  58         if (fd < 0)
  59                 die("No such file: %s", argv[1]);
  60
  61         // Tokenize the input stream
  62         token = tokenize(filename, fd, NULL);
  63         close(fd);
  64
  65         // Pre-process the stream
  66         token = preprocess(token);
  67
  68         // Parse the resulting C code
  69         translation_unit(token, &list);
  70
  71         // Show the end result.
  72         show_symbol_list(list, "\n\n");
  73         printf("\n\n");
  74
  75         // And show the allocation statistics
  76         show_ident_alloc();
  77         show_token_alloc();
  78         show_symbol_alloc();
  79         show_expression_alloc();
  80         show_statement_alloc();
  81         show_string_alloc();
  82         show_bytes_alloc();
  83         return 0;
  84 }