PPT-CSE341: Programming Languages Lecture 9 Function-Closure Idioms

Lecture 9 FunctionClosure Idioms Dan Grossman Fall 2011 More idioms We know the rule for lexical scope and function closures Now what is it good for A partial but wideranging list Pass functions with private data to iterators Done. Lecture 11. Closures-. ish. Java & . C. Dan Grossman. Fall 2011. Higher-order programming. Higher-order programming, e.g., with . map. and . filter. , is great. Language support for closures makes it very pleasant. Lecture 27. Generics vs. Subtyping; Bounded Polymorphism. Dan Grossman. Fall 2011. Today. Compare . generics and . subtyping. What each is good for. Combine generics and subtyping to get even more . benefit. Collocations. A collocation (also collocate) is a word or phrase which is frequently used with another word or phrase, in a way that sounds correct to speakers of the language. . Examples of Collocations. Idioms are expressions which have a meaning that is not obvious from the individual words.. The best way to understand an idiom is to see it in context.. Most idioms are fixed in their form and cannot be changed or varied.. The City of Ember. The City of Ember . is a novel about a group of people who have been moved to an underground city to protect mankind from the disaster. The people in Ember do not know they are in a special protected place. Knowledge of the outside world has been kept from them. . Introduction To Ruby; Dynamic OOP; "Duck Typing". Alan Borning. Autumn 2012. (slides borrowed from Dan Grossman). The plan. Lecture materials may not recount every little language feature we use. Thomas book . Dilin. Liu. The University of Alabama. Presented at . Minghsin. University of Science and Technology. Nov . 12, 2015. . Definition of Idiom. The definition of idiom varies significantly depending on the perspectives of the individual interested in the study of idioms, i.e., it varies from scholar to scholar.. 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 24. Subtyping . Dan Grossman. Autumn . 2018. Last major topic: Subtyping. Build up key ideas from first principles. In . pseudocode. because:. No time for another language. Simpler . to first show subtyping without objects. Lecture 22. OOP . vs. Functional Decomposition; Adding Operators & Variants; . Double-Dispatch . Dan Grossman. Autumn . 2018. Breaking things down. In functional (and procedural) programming, break programs down into . Lecture . 6. Tail Recursion, Accumulators, Exceptions. Dan Grossman. Fall 2011. Two unrelated topics. Tail recursion. Exceptions. Fall 2011. 2. CSE341: Programming Languages. Recursion. Should now be comfortable with recursion:. 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. The City of Ember . is a novel about a group of people who have been moved to an underground city to protect mankind from the disaster. The people in Ember do not know they are in a special protected place. Knowledge of the outside world has been kept from them. . Lecture 7. First-Class Functions. Dan Grossman. Spring 2019. What is functional programming?. “. Functional programming. ” can mean a few different things:. Avoiding mutation in most/all cases (done and ongoing).