{"id":252992,"date":"2004-09-01T06:24:18","date_gmt":"2004-09-01T13:24:18","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/?post_type=msr-research-item&#038;p=252992"},"modified":"2018-10-16T20:19:26","modified_gmt":"2018-10-17T03:19:26","slug":"make-fast-curry-pushenter-vs-evalapply","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/make-fast-curry-pushenter-vs-evalapply\/","title":{"rendered":"How to make a fast curry: push\/enter vs eval\/apply"},"content":{"rendered":"<p>Higher-order languages that encourage currying are typically implemented using one of two basic evaluation models: push\/enter or eval\/apply. Implementors use their intuition and qualitative judgements to choose one model or the other.<\/p>\n<p>Our goal in this paper is to provide, for the first time, a more substantial basis for this choice, based on our qualitative and quantitative experience of implementing both models in a state-of-the-art compiler for Haskell.<\/p>\n<p>Our conclusion is simple, and contradicts our initial intuition: compiled implementations should use eval\/apply.<\/p>\n<ul>\n<li><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/07\/eval-apply-icfp.pdf\">Conference version (2004) <\/a><\/li>\n<li><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/07\/eval-apply-slides.pdf\">Slides of talk <\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Higher-order languages that encourage currying are typically implemented using one of two basic evaluation models: push\/enter or eval\/apply. Implementors use their intuition and qualitative judgements to choose one model or the other. Our goal in this paper is to provide, for the first time, a more substantial basis for this choice, based on our qualitative [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"user_nicename","value":"simonpj"}],"msr_publishername":"","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"International Conference on Functional Programming","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"4-15","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"International Conference on Functional 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