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	<id>http://mw.hh.se/wg211/index.php?action=history&amp;feed=atom&amp;title=WG211%2FM17Kameyama</id>
	<title>WG211/M17Kameyama - Revision history</title>
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	<updated>2026-04-05T21:11:24Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://mw.hh.se/wg211/index.php?title=WG211/M17Kameyama&amp;diff=1657&amp;oldid=prev</id>
		<title>Eric: Created page with &quot;Environment Classifiers, Revisited.  - Yukiyoshi Kameyama  The classic problem of multi-stage programming -- how to ensure static safety (type safety and scope safety) for gen...&quot;</title>
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		<updated>2017-06-28T19:03:54Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;Environment Classifiers, Revisited.  - Yukiyoshi Kameyama  The classic problem of multi-stage programming -- how to ensure static safety (type safety and scope safety) for gen...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Environment Classifiers, Revisited.&lt;br /&gt;
&lt;br /&gt;
- Yukiyoshi Kameyama&lt;br /&gt;
&lt;br /&gt;
The classic problem of multi-stage programming -- how to ensure&lt;br /&gt;
static safety (type safety and scope safety) for generated code, has&lt;br /&gt;
been solved by Taha an Nielsen who introduced environment classifiers&lt;br /&gt;
to capture the lexical scope of code variables.  In this talk we&lt;br /&gt;
show that, by refining the notion of environment classifiers,&lt;br /&gt;
we get static safety for stronger languages with (1) local state,&lt;br /&gt;
(2) global state, and (3) powerful control operators.&lt;br /&gt;
In the first two cases (joint work with Oleg Kiselyov) the set of&lt;br /&gt;
classifiers forms a tree, while in the third case it forms a lattice.&lt;/div&gt;</summary>
		<author><name>Eric</name></author>
	</entry>
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