tests/interpreter

   1 #!/usr/bin/env trylon-interpreter
   2
   3 # Declaration, expression.
   4 message = "Hello world!"
   5 print-line: message
   6
   7 # "if".
   8 if 2 < 3
   9         Standard print-line: "Yeh."
  10 else
  11         Standard print-line: "Nah."
  12
  13 # "loop"
  14 i = 0
  15 loop
  16         Standard print-line: i string
  17         if i >= 3
  18                 break
  19         i += 1
  20 Standard print-line: "-----"
  21
  22 # "while"
  23 i = 0
  24 while i < 3
  25         Standard print-line: i string
  26         i += 1
  27 Standard print-line: "-----"
  28
  29 # "for"
  30 for char in "abc" characters
  31         if char == `b`
  32                 continue
  33         Standard print-line: char char-string
  34 Standard print-line: "-----"
  35 print-line
  36
  37 # Files.
  38 for file in ("interpreter", "tests/interpreter")
  39         try
  40                 contents = File contents-of: file
  41                 line-number = 1
  42                 for line in contents lines
  43                         print: line-number string
  44                         print: ": "
  45                         print-line: line
  46                         line-number += 1
  47         else
  48                 print-line: exception message
  49
  50 # We can get to the compiler.  But what could we do with it?
  51 Compiler
  52
  53
  54