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| Content Provider | ACM Digital Library |
|---|---|
| Author | Lawall, Julia L. Danvy, Olivier |
| Abstract | We continue to investigate the direct-style transformation by extending it to programs requiring call-with-current-continuation (a.k.a. call/cc). The direct style (DS) and the continuation-passing style (CPS) transformations form a Galois connection. This pair of functions has a place in the programmer's toolbox—yet we are not aware of the existence of any other DS transformer.Starting from our DS transformer towards pure, call-by-value functional terms (Scheme), we extend it with a counting analysis to detect non-canonical occurrences of a continuation. The declaration of such a continuation is translated into a call/cc and its application into the application of the corresponding first-class continuationWe also present staged versions of the DS and of the CPS transformations, where administrative reductions are separated from the actual translation, and where the actual translations are carried out by local, structure-preserving rewriting rules. These staged transformations are used to prove the Galois continuation.Together, the CPS and the DS transformations enlarge the class of programs that can be manipulated on a semantic basis. We illustrate this point with partial evaluation, by specializing a Scheme program with respect to a static part of its input. The program uses coroutines. This illustration achieves a first: a static coroutine is executed statically and its computational content is inlined in the residual program. |
| Starting Page | 299 |
| Ending Page | 310 |
| Page Count | 12 |
| File Format | |
| ISSN | 10453563 |
| DOI | 10.1145/141478.141564 |
| Journal | ACM SIGPLAN Lisp Pointers (LIPO) |
| Volume Number | V |
| Issue Number | 1 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1994-01-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
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