PPT-CS 355 – Programming Languages

Dr X Semantics There is no single widely acceptable notation or formalism for describing semantics Several needs for a methodology and notation for semantics Programmers need to know what statements mean. Dr. X. Topics. Introduction. Arithmetic Expressions. Overloaded Operators. Type Conversions. Relational and Boolean Expressions. Short-Circuit Evaluation. Assignment Statements. Mixed-Mode Assignment. 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. 1. IAT 355. Overview + Detail. Focus + Context. ______________________________________________________________________________________. . SCHOOL OF INTERACTIVE ARTS + TECHNOLOGY [SIAT] | WWW.SIAT.SFU.CA. 1. IAT 355. Graphs. ______________________________________________________________________________________. . SCHOOL OF INTERACTIVE ARTS + TECHNOLOGY [SIAT] | WWW.SIAT.SFU.CA. 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 . 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. CS 170b. Benjamin Gaska, much help from William Mitchell. What is a programming language. A simple definition:. A system for describing computation.. It is generally agreed that in order for a language to be . 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 19. Introduction to Ruby and OOP. Dan Grossman. Autumn . 2018. Ruby logistics. Next two sections use the Ruby language. http://. www.ruby-lang.org/. Installation / basic usage instructions on course website.