文章基本信息

标题：An Extensional Characterization of Lambda-Lifting and Lambda-Dropping
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作者：Olivier Danvy
期刊名称：BRICS Report Series
印刷版ISSN：0909-0878
出版年度：1999
卷号：6
期号：21
出版社：Aarhus University
摘要：Lambda-lifting and lambda-dropping respectively transform a block-structured functional program into recursive equations and vice versa. Lambda-lifting was developed in the early 80's, whereas lambda-dropping is more recent. Both are split into an analysis and a transformation. Published work, however, has only concentrated on the analysis parts. We focus here on the transformation parts and more precisely on their correctness, which appears never to have been proven. To this end, we define extensional versions of lambda-lifting and lambda-dropping and establish their correctness with respect to a least fixed-point semantics.