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At 03:47 PM 6/26/98 -0700, Dan Ingalls wrote:
<snip> >Perhaps the syntax of ST-80 has been simplified too much. >I wonder whether ST-76 already featured block closures. Where there >additional features which are not detailed in the paper and why where they >dropped in ST-80? What has been added in ST-80 beyond meta classes (and >perhaps block closures).
The implementation of blocks was pretty much the same as ST-80, but I fixed a couple of problems in ST-80.
Similarly, the implementation of meta classes was pretty much the same. All classes were instances of classes; the difference was that in '76 all classes were instances of a single class and in '80 we fixed a couple of problems so that only half of the classes were instances of a single class.
glenn
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