PPT-Programming Languages and Translators

COMS W4115 Alfred V Aho ahocscolumbiaedu Lecture 1 January 21 2015 Welcome to PLT Spring 2015 Prof Al Aho ahocscolumbiaedu Office hours 1 00200pm Mondays amp Wednesdays. Translators should refer back to the Main questionnaire for annotations and should be careful to be consistent in their translations where the formulation is identical Questions which are exact repetitions are marked in the footnote as Identical to Chapter One. Modern Programming Languages, 2nd ed. . 1. Outline. What makes programming languages an interesting subject? . The amazing variety. The odd controversies. The intriguing evolution. The connection to programming practice. (. cpp. , . cc1. , . as. ). main.c. main.o. Translators. (. cpp. , . cc1. , . as. ). sum.c. sum.o. prog. Source files. Relocatable. object files. Fully linked. executable object file. 1. A Type Is A Set. When you declare that a variable has a certain type, you are saying that the values the variable can have are elements of a certain set. A type is a set of values. plus a low-level representation. Classification of programming languages. “There are only two kinds of programming languages: those people always bitch about and those nobody uses.”. --. Bjarne. . Stroustrup. 1. . Generated using wordle.net from the text of this ppt file. Lecture . 9. Function-Closure Idioms. Zach Tatlock. Winter 2018. More idioms. We know the rule for lexical scope and function closures. Now what is it good for. A partial but wide-ranging list:. Pass functions with private data to iterators: Done. Lecture 14. Thunks. , Laziness, Streams, . Memoization. Dan Grossman. Winter 2013. Delayed evaluation. For each language construct, the semantics specifies when . subexpressions. get evaluated. In ML, Racket, Java, C:. Lecture 14. Thunks. , Laziness, Streams, . Memoization. Dan Grossman. Spring . 2017. Delayed evaluation. For each language construct, the semantics specifies when . subexpressions. get evaluated. In ML, Racket, Java, C:. Lecture 17. Implementing Languages Including Closures. Dan Grossman. Autumn . 2018. Typical workflow. Autumn 2018. 2. CSE341: Programming Languages. "(. fn. x => x x) 4". Parsing. Call. Function. Lecture 18. Static vs. Dynamic Typing. Dan Grossman. Autumn . 2018. Key differences. Racket and ML have . much. . . in common. Key differences. Syntax. Pattern-matching vs. . struct. -tests and . accessor. Lecture 17. Implementing Languages Including Closures. Dan Grossman. Spring 2013. Typical workflow. Spring 2013. 2. CSE341: Programming Languages. "(. fn. x => x + x) 4". Parsing. Call. Function. Lecture 26. Course Victory Lap. Dan Grossman. Winter 2013. Final Exam. As also indicated in class-list . email:. Next . Thursday. , . 8:30-10:20. Intention is . to focus primarily on material since the midterm. The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand