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Yusuke Endoh

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titleconferencedate
Practical TypeProf: Lessons from Analyzing OptcarrotRubyKaigi 20262026-04-22
TypeProf applied to Optcarrot (a 6,000-line NES emulator) finds 669 false-positive errors initially and is driven to zero by a mix of targeted RBS at…
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An Invitation to TRICK: How to write weird Ruby programsRubyConf 20242024-11-13
Showcases a dozen winning TRICK entries and the exact tricks that make them work so viewers know what they’d learn: a rotating quine that yields new source…
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Enjoy Ruby Programming in IDE and TypeProfRubyConf 20212021-11-08
Claims that TypeProf bundled in Ruby 3.0 can provide on‑the‑fly error reporting, completion and go‑to‑definition inside VS Code using a TypeProf for IDE…
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A Static Type Analyzer of Untyped Ruby Code for Ruby 3RubyConf 20192019-11-18
A static analyzer called Type Profiler executes Ruby code at the type level using abstract interpretation to generate RBS-style signatures and flag unknowns…
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A Plan towards Ruby 3 TypesEuRuKo 20192019-06-21
A new Ruby Type Profiler implements an abstract interpreter that runs on test executions, records argument and return types, and emits Ruby signature files…
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Transcendental Programming in RubyKeep Ruby Weird 20182018-11-09
Claims concrete hacks: a gem that encodes Ruby programs to a natural number and decodes them back, a generator that emits a QR code containing an executable…
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Bath Ruby Conference 2018 - Bath Is Nice So We Are NiceBath Ruby 20182018-03-22
Conference session argues Ruby's primary value is its community-first culture and developer happiness, backed by a 25-year history from Matz and examples of…
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Esoteric, Obfuscated, Artistic Programming in RubyBath Ruby 20182018-03-22
Shows concrete Ruby hacks: a program encoded as only digits via Gödel-style numbering plus ObjectSpace enumeration that decodes and runs, and a variant that…
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Esoteric, Obfuscated, Artistic Programming in RubyRubyConf 20172017-11-15
Ruby code demonstrates concrete surprises: a spinning-quine called Qlobe that prints and animates an ASCII globe; a Radiation-hardened Quine that survives any…
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An introduction and future of Ruby coverage libraryRubyKaigi 20172017-09-18
Covers an intro to code coverage and the current Ruby ecosystem, shows a C extension coverage.so plus a SimpleCov wrapper used to record line counts, adds…
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