CSC/ECE 517 Fall 2011/ch1 1c cm

Introduction

high-level overview, who we are trying to target

Closures vs. Methods

introduction of the battle of functional versus object oriented history of the closures with scheme and future languages history of OO methods with C++ and other languages

Summary Table

graphical breakdown of the two and the features we think are important for each

Closures

closures are associated with functional programming

First-class functions

closures are typically first-class functions (define first-class functions)

Execution-time environment contains free variables

closures capture variables referenced at the time they are created and the lifetime of those captured variables is extended to at least as long as the lifetime of the closure

Methods

methods and classes are associated with object-oriented programming

Instance or static class functions

methods are functions associated with an object

Execution-time environment contains instance or static variables

methods operate on state associated with an object (environment is closed, but defined by the programmer at compile time)