SCClassLibrary/Common/Streams/Rest.sc

   1 Rest {
   2         var <>dur = 1;
   3         *new { |dur(1)|
   4                 ^super.newCopyArgs(dur)
   5         }
   6         // for use by Pfunc and Pfuncn
   7         *processRest { |inval|
   8                 inval.put(\isRest, true);
   9                 ^1
  10         }
  11         processRest { |inval|
  12                 inval.put(\isRest, true);
  13                 ^dur
  14         }
  15         // for use e.g. in ListPatterns
  16         *embedInStream { |inval|
  17                 ^this.processRest(inval).yield;  // the actual return value is the next inval
  18         }
  19         embedInStream { |inval|
  20                 ^this.processRest(inval).yield;
  21         }
  22         *asStream {
  23                 ^Routine({ |inval|
  24                         loop {
  25                                 inval = this.embedInStream(inval);
  26                         }
  27                 })
  28         }
  29         asStream {
  30                 ^Routine({ |inval|
  31                         loop {
  32                                 inval = this.embedInStream(inval);
  33                         }
  34                 })
  35         }
  36 }
  37
  38 + Object {
  39         processRest { ^this }
  40 }
  41
  42 + Collection {
  43         processRest { |inval|
  44                 this.do(_.processRest(inval))
  45         }
  46 }
  47
  48
  49 + SimpleNumber {
  50         // Some patterns call .delta on the eventstream's yield value
  51         // since a SimpleNumber is a valid rest, it must answer 'delta' with itself
  52         delta {}
  53 }