Examples of edu.mit.csail.sdg.alloy4.Subprocess

edu.mit.csail.sdg.alloy4.Pos
This provides a convenience wrapper around a Process object.
To launch a subprocess, simply write Subprocess.exec(timeout, args);
Thread Safety: Safe.


   /** Returns the formula (lone...| this)
    * <p> this must be a formula
    */
   public final Expr forLone(Decl firstDecl, Decl... moreDecls) throws Err {
      Pos p = firstDecl.span();
      for(Decl v: moreDecls) p=p.merge(v.span());
      return ExprQt.Op.LONE.make(p, null, Util.prepend(Util.asList(moreDecls), firstDecl), this);
   }

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   /** Returns the formula (one ...| this)
    * <p> this must be a formula
    */
   public final Expr forOne(Decl firstDecl, Decl... moreDecls) throws Err {
      Pos p = firstDecl.span();
      for(Decl v: moreDecls) p=p.merge(v.span());
      return ExprQt.Op.ONE.make(p, null, Util.prepend(Util.asList(moreDecls), firstDecl), this);
   }

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   /** Returns the formula (some...| this)
    * <p> this must be a formula
    */
   public final Expr forSome(Decl firstDecl, Decl... moreDecls) throws Err {
      Pos p = firstDecl.span();
      for(Decl v: moreDecls) p=p.merge(v.span());
      return ExprQt.Op.SOME.make(p, null, Util.prepend(Util.asList(moreDecls), firstDecl), this);
   }

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   /** Returns the comprehension expression {...|this}
    * <p> this must be a formula
    * <p> each declaration must be a "one-of" quantification over a unary set
    */
   public final Expr comprehensionOver(Decl firstDecl, Decl... moreDecls) throws Err {
      Pos p = firstDecl.span();
      for(Decl v: moreDecls) p=p.merge(v.span());
      return ExprQt.Op.COMPREHENSION.make(p, null, Util.prepend(Util.asList(moreDecls), firstDecl), this);
   }

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   /** Returns the integer (sum...| this)
    * <p> this must be an integer expression
    * <p> each declaration must be a "one-of" quantification over a unary set
    */
   public final Expr sumOver(Decl firstDecl, Decl... moreDecls) throws Err {
      Pos p = firstDecl.span();
      for(Decl v: moreDecls) p=p.merge(v.span());
      return ExprQt.Op.SUM.make(p, null, Util.prepend(Util.asList(moreDecls), firstDecl), this);
   }

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            }
            catch(Err e) {
                commands = null;
                runmenu.getItem(0).setEnabled(false);
                runmenu.getItem(3).setEnabled(false);
                text.shade(new Pos(text.get().getFilename(), e.pos.x, e.pos.y, e.pos.x2, e.pos.y2));
                if ("yes".equals(System.getProperty("debug")) && Verbosity.get()==Verbosity.FULLDEBUG)
                    log.logRed("Fatal Exception!" + e.dump() + "\n\n");
                else
                    log.logRed(e.toString()+"\n\n");
                return null;

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        if (arg.startsWith("POS: ")) { // POS: x1 y1 x2 y2 filename
            Scanner s=new Scanner(arg.substring(5));
            int x1=s.nextInt(), y1=s.nextInt(), x2=s.nextInt(), y2=s.nextInt();
            String f=s.nextLine();
            if (f.length()>0 && f.charAt(0)==' ') f=f.substring(1); // Get rid of the space after Y2
            Pos p=new Pos(Util.canon(f), x1, y1, x2, y2);
            text.shade(p);
        }
        if (arg.startsWith("CNF: ")) { // CNF: filename
            String filename=Util.canon(arg.substring(5));
            try { String text=Util.readAll(filename); OurDialog.showtext("Text Viewer", text); }

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   }


   /** {@inheritDoc} */
   public Object do_action(Object sender, Event e, Object arg) {
      if (sender instanceof OurTree && e==Event.CLICK && arg instanceof Browsable) {
        Pos p = ((Browsable)arg).pos();
        if (p==Pos.UNKNOWN) p = ((Browsable)arg).span();
        text.shade(p);
      }
      return true;
   }

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    private Field parseField(String id) throws IOException, Err {
       final XMLNode node = nmap.get(id);
       if (node==null) throw new IOException("Unknown FieldID "+id+" encountered.");
       if (!node.is("field")) throw new IOException("ID "+id+" is not a field.");
       String label  = label(node);
       Pos isPrivate = yes(node,"private") ? Pos.UNKNOWN : null;
       Pos isMeta = yes(node,"meta") ? Pos.UNKNOWN : null;
       Expr type = null;
       for(XMLNode sub:node) if (sub.is("types")) { Expr t=parseType(sub); if (type==null) type=t; else type=type.plus(t); }
       int arity;
       if (type==null || (arity=type.type().arity())<2) throw new IOException("Field "+label+" is maltyped.");
       String parentID = node.getAttribute("parentID");

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   //============================================================================================================//


   /** {@inheritDoc} */
   @Override public Pos span() {
      Pos p = span;
      if (p==null) span = (p = pos.merge(closingBracket).merge(right.span()).merge(left.span()));
      return p;
   }

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