src/test.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <assert.h>
   4
   5 #include "../include/oberon.h"
   6
   7 static char source_test[] =
   8         "(* Main module *)"
   9         "MODULE Test;"
  10         "IMPORT Out;"
  11         "CONST"
  12         "  null = 0X;"
  13         "  space = 020X;"
  14         "  bang = 021X;"
  15         "  h = 048X;"
  16         "  e = 045X;"
  17         "  l = 04CX;"
  18         "  o = 04FX;"
  19         "  w = 057X;"
  20         "  r = 052X;"
  21         "  d = 044X;"
  22         ""
  23         "TYPE"
  24         "  Ident = ARRAY 20 OF CHAR;"
  25         ""
  26         "VAR"
  27         "  hello : Ident;"
  28         "  cc : CHAR;"
  29         ""
  30         "BEGIN"
  31         "  hello[0] := h;"
  32         "  hello[1] := e;"
  33         "  hello[2] := l;"
  34         "  hello[3] := l;"
  35         "  hello[4] := o;"
  36         "  hello[5] := space;"
  37         "  hello[6] := w;"
  38         "  hello[7] := o;"
  39         "  hello[8] := r;"
  40         "  hello[9] := l;"
  41         "  hello[10] := d;"
  42         "  hello[11] := bang;"
  43         "  hello[12] := null;"
  44         "  Out.Open;"
  45         "  Out.String(hello);"
  46         "  Out.Ln;"
  47         "END Test."
  48 ;
  49
  50 // PROCEDURE Char* (ch : CHAR);
  51 // PROCEDURE String* (str : ARRAY OF CHAR);
  52
  53 static char source_out[] =
  54         "MODULE Out;"
  55         "  PROCEDURE Open*;"
  56         "  END Open;"
  57         ""
  58         "  PROCEDURE Char* (ch : CHAR);"
  59         "  END Char;"
  60         ""
  61         "  PROCEDURE String* (str : ARRAY OF CHAR);"
  62         "  END String;"
  63         ""
  64         "  PROCEDURE Int*(i, n : LONGINT);"
  65         "  END Int;"
  66         ""
  67         "  PROCEDURE Real*(x : REAL; n : INTEGER);"
  68         "  END Real;"
  69         ""
  70         "  PROCEDURE LongReal*(x : LONGREAL; n : INTEGER);"
  71         "  END LongReal;"
  72         ""
  73         "  PROCEDURE Ln*;"
  74         "  END Ln;"
  75         ""
  76         "END Out."
  77 ;
  78
  79 static oberon_context_t * ctx;
  80 static oberon_module_t * mod;
  81
  82 static const char *
  83 import_module(const char * name)
  84 {
  85         if(strcmp(name, "Test") == 0)
  86         {
  87                 return source_test;
  88         }
  89         else if(strcmp(name, "Out") == 0)
  90         {
  91                 return source_out;
  92         }
  93         else
  94         {
  95                 return NULL;
  96         }
  97 }
  98
  99 typedef void (*TOutOpen)();
 100 static TOutOpen * OutOpenPtr;
 101 void ImplOutOpen()
 102 {
 103 }
 104
 105 typedef void (*TOutInt)(int, int);
 106 static TOutInt * OutIntPtr;
 107 void ImplOutInt(int i, int n)
 108 {
 109         char number[22];
 110         snprintf(number, 22, "%d", i);
 111         int len = strlen(number);
 112         for(int i = 0; i < n - len; i++)
 113         {
 114                 putchar(' ');
 115         }
 116         printf("%s", number);
 117 }
 118
 119 typedef void (*TOutReal)(float, int);
 120 static TOutReal * OutRealPtr;
 121 void ImplOutReal(float i, int n)
 122 {
 123         char number[32];
 124         snprintf(number, 32, "%F", i);
 125         int len = strlen(number);
 126         for(int i = 0; i < n - len; i++)
 127         {
 128                 putchar(' ');
 129         }
 130         printf("%s", number);
 131 }
 132
 133 typedef void (*TOutLn)();
 134 static TOutLn * OutLnPtr;
 135 void ImplOutLn()
 136 {
 137         putchar('\n');
 138 }
 139
 140 void init_system_modules()
 141 {
 142         OutOpenPtr = oberon_generator_get_var(ctx, "Out_Open");
 143         *OutOpenPtr = ImplOutOpen;
 144         OutIntPtr = oberon_generator_get_var(ctx, "Out_Int");
 145         *OutIntPtr = ImplOutInt;
 146         OutRealPtr = oberon_generator_get_var(ctx, "Out_Real");
 147         *OutRealPtr = ImplOutReal;
 148         OutLnPtr = oberon_generator_get_var(ctx, "Out_Ln");
 149         *OutLnPtr = ImplOutLn;
 150 }
 151
 152 void start_module()
 153 {
 154         void (*begin)() = oberon_generator_get_procedure(ctx, "Test_BEGIN");
 155         begin();
 156 }
 157
 158 int
 159 main(int argc, char ** argv)
 160 {
 161         ctx = oberon_create_context(import_module);
 162         mod = oberon_compile_module(ctx, source_test);
 163
 164         oberon_generate_code(ctx);
 165
 166 //      init_system_modules();
 167
 168 //      oberon_generator_dump(ctx, "dump.txt");
 169
 170 //      start_module();
 171
 172         oberon_destroy_context(ctx);
 173         return 0;
 174 }