Better tiger_print.

llvm_emulator/stepper.py

@@ -3,14 +3,16 @@ from enum import Enum
 from llvm_emulator import ll
 
 import sys
+import random
 
 ############
 # Messages #
 
-PRINT_LEVEL_NONE = 0
-PRINT_LEVEL_ERR  = 1
-PRINT_LEVEL_WARN = 2
-PRINT_LEVEL_INFO = 3
+PRINT_LEVEL_SILENT = -1
+PRINT_LEVEL_NONE   =  0
+PRINT_LEVEL_ERROR  =  1
+PRINT_LEVEL_WARN   =  2
+PRINT_LEVEL_INFO   =  3
 
 PRINT_LEVEL = PRINT_LEVEL_NONE
 
@@ -20,7 +22,7 @@ def eprint(*args, **kwargs):
     print(*args, file=sys.stderr, **kwargs)
 
 def err(msg):
-    if PRINT_LEVEL >= PRINT_LEVEL_ERR:
+    if PRINT_LEVEL >= PRINT_LEVEL_ERROR:
         eprint('ERROR: {}'
               .format(msg))
 
@@ -37,6 +39,13 @@ def info(*args, **kwargs):
     if PRINT_LEVEL >= PRINT_LEVEL_INFO:
         print(*args, **kwargs)
 
+def tiger_print(msg):
+    if PRINT_LEVEL == PRINT_LEVEL_SILENT:
+        return
+    if not isinstance(msg, str):
+        msg = ''.join([chr(random.randint(0, 255)) for i in range(random.randint(1, 5))])
+    sys.stdout.write(msg)
+
 ##########
 # Stuff? #
 
@@ -624,7 +633,7 @@ def emulate_builtin(name, arguments_v, ssa_env, heap):
             info('Printing string, heap[{}]:'
                   .format(struct_begin))
             printee = heap[struct_begin + 1]
-            info(printee)
+            tiger_print(printee)
             if not isinstance(printee, str):
                 warn('What was printed, was not stored as a string in the heap')
     elif name in builtins: