openbios/fcode-utils/testsuite/TokMisc/ContErr3.fth

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• Hash : acf5213f
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  Date : 2006-10-14T20:31:53
  

  testsuite 1.0.0 git-svn-id: svn://coreboot.org/openbios/fcode-utils@91 f158a5a8-5612-0410-a976-696ce0be7e32

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• testsuite/TokMisc/ContErr3.fth

• \  An even more severe test of Erroneous Control Constructs.
  
  \  Updated Fri, 28 Jul 2006 at 14:28 PDT by David L. Paktor
  
  fcode-version2
  
  headers
  
  \  Seven dwarves:
  \      Happy Grumpy Sleepy Sneezy Dopey Bashful and Doc
  \  Their disfavored cousins:
  \      Crappy Dumpy Sneaky Sleazy Gropey Trashful and Schlock
  : crapsky
      ." 0 case" 0 case
        ." 1 of"
        1 of   ." 1 endof"  1 endof
        ." 2 of"
        2 of   ." 2 endof"  2 endof
        ." 3 of"
        3 of   ." 3 endof"  3 endof
        ." default 0"  0
     ." resolve case w/ then" then
     ." resolve 3 endof w/ then" then
     ." resolve 2 endof w/ then" then
     ." resolve 1 endof w/ then" then
     ." Donesky vith crapsky."
  ;
  
  : dumpsky
      ." 0 if"  0 if
  	." free-floating endcase"
      endcase  ." And no then"
  ;
  
  : sneaksky
      ." Free-floating else" else
      ." And notsnik aftervards."
  ;
  
     ." While by itself, outside of def'n"
     while
   
   : gropsky
      ." A typo.  0 of  not 0 if"
      0 of
      ." Misbalanced by a then?"
      then
      ." Goobar... Guwno?"
   ;
  
  : trashsky
      ." Another typo..."
      ." 0 case "  0 case
      ." 10 if   not 10 of"
      10 if
      ." Misbalanced by endof."
         endof
      ." Not my default."
      endcase
      ." That was an endcase just in case"
  ;
  
  : schlocksky
     ." Like trashsky but without final balancer..."
         ." Another typo..."
      ." 0 case "  0 case
      ." 10 if   not 10 of"
      10 if
      ." Misbalanced by endof."
         endof
      ." No endcase here"
  ;
  
  ." We need to be able to detect  Leave  out of context."
  ." Let's see if this can fool it..."
  ." 1 0 DO"  1 0 do
  
  : stinsky
      ."  if leave then "
      if
          leave
      then
  ;
  
  ." 1 begin" 1 begin
  ." 1 - ?dup while"  1 - ?dup while
  ." What the hey?  Loop ?"  loop
  
  
  ." 1 begin" 1 begin
  ." 1 - ?dup while"  1 - ?dup while
  ." again then ought to match..."
  again
  then
  
  ."  How about IF BEGIN without WHILE then REPEAT..."
  ." 0 if"  0 if
  begin
  ."  There's an IF ; where's the WHILE?"   #message"  There's an IF ; where's the WHILE?"
  repeat
  ." That compiles..."  #message" Won't be easy to catch."
  
  ."  How about  BEGIN without WHILE then REPEAT..."
  ." begin"  begin   #message" BEGIN without WHILE then REPEAT..."
  ."  Where's the while?"  #message" Where's the while?" 
  repeat
  
  
  ." repeat without precedent..." repeat
  
  ." loop without precedent"  loop
  
  ." 1 0 DO"  1 0 do
  ." What???"
  ." repeat..." repeat
  
  #message" Definitions within a loop"  ." ...within a loop"
  
  : test_something ( indx -- targ true | false )
      ." Stub"  2 = dup if h# 1923 swap then
  ;
  4 0 do 
      i test_something if
         ( targ ) value  targ  ( klingon-pet )
         : funny_stuff
            1 0 do targ u.
  	      #message" Error here..."  j
  	      #message" But not here"  1 0 do j . loop
  	  loop    test_something
         ;
  
      then
  loop
  
  #message" Same line as a loop"  ." ...Same line as a loop"
  
  4 0 do i test_something if to targ : runny_stuff  begin
      1 0 do targ u.   #message" Error here, too..."  j
      #message" But not here either"  1 0 do j . loop
      loop true #message" Missing an until"
  ;
  then loop
  
  fcode-end
  

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