What is an object, really? OR When is an object actually a function?
summary
Ruby code shows that a class is a runtime object and can be cloned, reassigned and stored in variables, so class is an instance and methods live as operations in that object space. Examples use Proc/-> and the ampersand to convert instances into callable blocks and a square-bracket dispatch hack to emulate direct calls, demonstrating instances as partially applied functions. The talk argues domain modeling suits objects but transformations suit functions, and recommends modeling model→view pipelines as composed transforms.
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chapters (10)
- 0:00Introduction and background
- 4:45Imperative vs higher-level languages
- 8:17Lambda calculus and convergence
- 13:08Objects as instances of types
- 17:46Classes as instances in Ruby
- 21:56Functions and object dispatch
- 25:06Domain modeling limitations
- 29:00Functions as transformations
- 31:48Objects behaving like functions
- 35:23Summary and Q&A
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