← Extractions

Ruby Rendezvous: Method Call, Proc, and Beyond — Agnieszka Małaszkiewicz at wroclove.rb 2023

Agnieszka Małaszkiewicz gives a nostalgic tour of lesser-known Ruby flavors at wroclove.rb 2023 — adjacent-string concatenation in parse.y, calling methods via :: scope resolution, calling procs with === (enabling procs in case/when), curry, Symbol#to_proc, Hash#to_proc, Method#to_proc, and numbered block parameters. She also recounts using ChatGPT to brainstorm the talk title and reflects on first speaking at wroclove.rb in 2020.

Model

claude-opus-4-7

Ingestion

f5b8165f

Input tokens

157,970

fresh: 92,240
cached: 58,864
cache write: 6,866

Output tokens

12,618

Duration

176.0s

Roundtrips

Tool calls

Cost

$0.00

Nodes/edges extracted

29 / 41

Read set (nodes/edges)

82 / 2

Nodes (29)

create merb tool

kind (empty) → tool

name (empty) → merb

slug (empty) → merb

attrs (empty) → {"status" => "defunct", "category" => "framework"}

description (empty) → Ruby web framework whose core team later merged with the Rails core team. Cited in Małaszkiewicz's talk as an early c...

short_description (empty) → Defunct Ruby web framework that merged with Rails.

create Hash#to_proc concept

kind (empty) → concept

name (empty) → Hash#to_proc

slug (empty) → hash-to_proc

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby core method that converts a Hash into a proc equivalent to `->(key){ hash[key] }`, implemented in Rubinius as `m...

short_description (empty) → Ruby method converting a hash into a proc equivalent to hash[key].

create Ruby Archaeology talk

kind (empty) → talk

name (empty) → Ruby Archaeology

slug (empty) → ruby-archaeology

attrs (empty) → {"type" => "talk"}

description (empty) → Nick Schwaderer's talk exploring old Ruby code (like the merb framework) in the spirit of a 'Ruby detective'. Małaszk...

short_description (empty) → Nick Schwaderer talk on exploring old Ruby code as a 'Ruby detective'.

update Agnieszka Małaszkiewicz person

attrs (empty) → {"blog" => "womanonrails.com", "first_ruby_version" => "1.9.3", "first_rails_version" => "3.0", "joined_ruby_communit...

description Conference speaker. → Ruby developer who joined the Ruby community around 2011–2012, starting on Ruby 1.9.3 and Rails 3. Runs the Woman on ...

short_description Conference speaker. → Ruby developer and conference speaker; author of Woman on Rails blog.

update Ruby Rendezvous Method Call, Proc, and Beyond talk

attrs {"type" => "talk"} → {"type" => "talk", "title_brainstormed_with" => "ChatGPT"}

description Talk at wroclove.rb 2023. → Agnieszka Małaszkiewicz's wroclove.rb 2023 talk (final title crowdsourced with ChatGPT after rejecting drier suggesti...

short_description Talk at wroclove.rb 2023. → Tour of lesser-known ways to call methods and procs in Ruby.

create ChatGPT tool

kind (empty) → tool

name (empty) → ChatGPT

slug (empty) → chatgpt

attrs (empty) → {"category" => "service"}

description (empty) → Conversational LLM by OpenAI. Małaszkiewicz used ChatGPT to brainstorm the title of her wroclove.rb 2023 talk, iterat...

short_description (empty) → OpenAI's conversational LLM assistant.

create Greg Navis person

kind (empty) → person

name (empty) → Greg Navis

slug (empty) → greg-navis

description (empty) → Ruby developer and blogger. Author of the widely cited article enumerating 12 ways to call a method in Ruby. Małaszki...

short_description (empty) → Ruby developer; author of '12 ways to call a method in Ruby'.

create 12 Ways to Call a Method in Ruby resource

kind (empty) → resource

name (empty) → 12 Ways to Call a Method in Ruby

slug (empty) → 12-ways-to-call-a-method-in-ruby

attrs (empty) → {"type" => "article"}

description (empty) → Blog article by Greg Navis cataloguing 12 ways to call a method in Ruby, using a `User#hello` example. Referenced by ...

short_description (empty) → Greg Navis's article enumerating 12 ways to invoke a method in Ruby.

create Nick Schwaderer person

kind (empty) → person

name (empty) → Nick Schwaderer

slug (empty) → nick-schwaderer

description (empty) → Ruby developer whose 'Ruby Archaeology' / 'Ruby Detective' talk inspired Małaszkiewicz. He popularized the framing of...

short_description (empty) → Ruby developer known for 'Ruby Archaeology' / 'Ruby Detective' talks.

create Rubinius tool

kind (empty) → tool

name (empty) → Rubinius

slug (empty) → rubinius

attrs (empty) → {"category" => "language", "last_update" => "2020"}

description (empty) → Alternative Ruby implementation written largely in Ruby itself. Last update was in 2020. Małaszkiewicz uses it as a r...

short_description (empty) → Ruby implementation written largely in Ruby.

create IronRuby tool

kind (empty) → tool

name (empty) → IronRuby

slug (empty) → ironruby

attrs (empty) → {"status" => "defunct", "category" => "language"}

description (empty) → Historical Ruby implementation targeting Microsoft's .NET framework, circa 2011. Mentioned in passing by Małaszkiewic...

short_description (empty) → Ruby implementation for Microsoft's .NET framework.

create RuboCop tool

kind (empty) → tool

name (empty) → RuboCop

slug (empty) → rubocop

attrs (empty) → {"category" => "tool"}

description (empty) → Ruby static code analyzer / style linter. Its documentation recommends using `::` only for referencing constants (inc...

short_description (empty) → Ruby static code analyzer and style linter.

create Yacc tool

kind (empty) → tool

name (empty) → Yacc

slug (empty) → yacc

attrs (empty) → {"category" => "tool"}

description (empty) → Parser generator ('yet another compiler compiler') that consumes a BNF-style grammar description and emits C code. Us...

short_description (empty) → 'Yet another compiler compiler' — parser generator.

create Backus-Naur Form concept

kind (empty) → concept

name (empty) → Backus-Naur Form

slug (empty) → backus-naur-form

attrs (empty) → {"category" => "methodology"}

description (empty) → Metalanguage ('BNF') for describing the grammar of programming languages. Ruby's parse.y uses BNF-style notation cons...

short_description (empty) → Metasyntax for describing context-free grammars of programming languages.

create Ruby parse.y resource

kind (empty) → resource

name (empty) → Ruby parse.y

slug (empty) → ruby-parse-y

attrs (empty) → {"type" => "repository"}

description (empty) → The `parse.y` file in Ruby's MRI source tree — a Yacc grammar in BNF-like notation that defines Ruby's syntax. Małasz...

short_description (empty) → The grammar file defining Ruby's parser in MRI.

create Adjacent String Literal Concatenation concept

kind (empty) → concept

name (empty) → Adjacent String Literal Concatenation

slug (empty) → adjacent-string-literal-concatenation

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby (like Python, C, and C++) concatenates adjacent string literals at parse time, so `'hello' " world"` becomes `'h...

short_description (empty) → Ruby parse-time concatenation of adjacent string literals separated by whitespace.

create Scope Resolution Operator concept

kind (empty) → concept

name (empty) → Scope Resolution Operator

slug (empty) → scope-resolution-operator

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby's `::` operator, properly called the scope (or constant) resolution operator, used primarily to reference consta...

short_description (empty) → Ruby's :: operator for resolving constants, classes and modules.

create Proc Triple-Equals Call concept

kind (empty) → concept

name (empty) → Proc Triple-Equals Call

slug (empty) → proc-triple-equals-call

attrs (empty) → {"category" => "pattern", "since_version" => "1.9.1"}

description (empty) → Ruby Proc responds to `===`, so `my_proc === arg` is equivalent to `my_proc.call(arg)`. Present since at least Ruby 1...

short_description (empty) → Calling a Ruby Proc with === — enabling procs in case/when.

create Symbol#to_proc concept

kind (empty) → concept

name (empty) → Symbol#to_proc

slug (empty) → symbol-to_proc

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby core method that returns a proc which, given an object as its first argument, sends the symbol's method to that ...

short_description (empty) → Ruby method converting a symbol into a proc that invokes that method on its argument.

create Method#to_proc concept

kind (empty) → concept

name (empty) → Method#to_proc

slug (empty) → method-to_proc

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby converts a `Method` object (obtained via `object.method(:name)`) to a Proc bound to its original receiver. Combi...

short_description (empty) → Converts a Method object into a Proc bound to its receiver.

create Proc#curry concept

kind (empty) → concept

name (empty) → Proc#curry

slug (empty) → proc-curry

attrs (empty) → {"category" => "pattern"}

description (empty) → `Proc#curry` returns a curried version of a proc with a declared arity. Calling the curried proc with fewer arguments...

short_description (empty) → Ruby method returning a curried proc that partially applies arguments.

create Numbered Block Parameters concept

kind (empty) → concept

name (empty) → Numbered Block Parameters

slug (empty) → numbered-block-parameters

attrs (empty) → {"category" => "pattern"}

description (empty) → Ruby feature allowing block arguments to be referenced implicitly as `_1`, `_2`, `_3`, etc., instead of naming them b...

short_description (empty) → Implicit block parameters _1, _2, _3… in Ruby.

create Woman on Rails resource

kind (empty) → resource

name (empty) → Woman on Rails

slug (empty) → woman-on-rails

attrs (empty) → {"url" => "womanonrails.com", "type" => "blog-post"}

description (empty) → Agnieszka Małaszkiewicz's blog at womanonrails.com. She publishes her conference slides there (e.g. womanonrails.com/...

short_description (empty) → Agnieszka Małaszkiewicz's Ruby and Rails blog.

create Use === to put Procs in case/when takeaway

kind (empty) → takeaway

name (empty) → Use === to put Procs in case/when

slug (empty) → use-to-put-procs-in-case-when

attrs (empty) → {"type" => "recommendation"}

description (empty) → Practical recommendation from the talk: because Proc responds to `===` and `case/when` dispatches via `===`, any Proc...

short_description (empty) → Since Ruby 2.2, any Proc can act as a case/when condition via ===.

create Prefer . over :: for method calls takeaway

kind (empty) → takeaway

name (empty) → Prefer . over :: for method calls

slug (empty) → prefer-over-for-method-calls

attrs (empty) → {"type" => "recommendation"}

description (empty) → Convention, codified by RuboCop: use `::` only to reference constants, classes, modules, and constructors like `Nokog...

short_description (empty) → RuboCop and community convention: reserve :: for constants, use . for methods.

create Read Ruby source to understand Ruby takeaway

kind (empty) → takeaway

name (empty) → Read Ruby source to understand Ruby

slug (empty) → read-ruby-source-to-understand-ruby

attrs (empty) → {"type" => "lesson-learned"}

description (empty) → Meta-lesson of the talk: many 'magic' Ruby features become obvious once you read the source. Adjacent-string concaten...

short_description (empty) → Dig into parse.y and Rubinius to learn how Ruby features really work.

create Does any of these techniques see real project use? question

kind (empty) → question

name (empty) → Does any of these techniques see real project use?

slug (empty) → does-any-of-these-techniques-see-real-project-use

attrs (empty) → {"answer_summary" => "Mostly for fun; in production she uses === procs in case/when (notably with Rails Event Store) ...

description (empty) → Audience question following the talk. Answer: some techniques are mostly fun/curiosity and not production-ready, but ...

short_description (empty) → Audience asks whether she uses these tricks in production.

create Have you compared performance of these method-call styles? question

kind (empty) → question

name (empty) → Have you compared performance of these method-call styles?

slug (empty) → have-you-compared-performance-of-these-method-call-styles

attrs (empty) → {"answer_summary" => "No benchmarks; performance comparison is an open topic."}

description (empty) → Audience question: beyond readability, have the techniques been benchmarked for speed or any other benefit? Answer: n...

short_description (empty) → Audience asks whether any technique offers speed benefits beyond fun.

create Do you chain/compose procs in practice? question

kind (empty) → question

name (empty) → Do you chain/compose procs in practice?

slug (empty) → do-you-chain-compose-procs-in-practice

attrs (empty) → {"answer_summary" => "Tried it for fun, but readability suffers, so not used in production."}

description (empty) → Audience question about composing functions / passing procs into procs within blocks. Answer: she has tried it as a '...

short_description (empty) → Audience asks about functional composition of procs passed through blocks.

Edges (41)

update Agnieszka Małaszkiewicz → authored → Ruby Rendezvous Method Call, Proc, and Beyond

context (empty) → Speaker delivering the talk at wroclove.rb 2023.

update Ruby Rendezvous Method Call, Proc, and Beyond → presented_at → wroclove.rb 2023

context (empty) → Talk given at wroclove.rb 2023.

create Agnieszka Małaszkiewicz → attended → wroclove.rb 2023

context (empty) → Speaker and attendee in 2023.

relation (empty) → attended

source_node_id (empty) → e21d8935-ebce-4159-86ec-41c6bd542ef5

target_node_id (empty) → f1adcf6d-780c-4418-8a81-c88da8b4e631

create Agnieszka Małaszkiewicz → authored → Woman on Rails

context (empty) → Runs and publishes at womanonrails.com.

relation (empty) → authored

source_node_id (empty) → e21d8935-ebce-4159-86ec-41c6bd542ef5

target_node_id (empty) → 7354eab9-bfbc-4b30-a66b-8794a70cb685

create Ruby Rendezvous Method Call, Proc, and Beyond → about → Ruby

context (empty) → Tour of Ruby language features around method invocation and procs.

relation (empty) → about