Understanding the Expression Problem: A Fundamental Software Design Challenge
By
andsoitis
A five-star bake. Worth schmearing, sharing, saving.
Summary
This article explores the Expression Problem, a fundamental software design challenge involving the tension between adding new data types versus new operations in programming. The author describes how they encountered this problem multiple times in their career but only recently learned its formal name. The article discusses various solutions and approaches to handling the Expression Problem, which is central to programming language design and software architecture decisions about extensibility and modularity.
Key quotes
· 3 pulledThe craft of programming is almost universally concerned with different types of data and operations/algorithms that act on this data.
It's a problem so fundamental that I was quite surprised that I haven't seen it named before.
designing abstractions for data types and operations has been on the mind of software engineers and programming-language designers since... forever.
You might also wanna read
NVIDIA Announces "Hack for Impact" London Event for Autonomous AI Agent Development
NVIDIA is hosting a "Hack for Impact" event in London, challenging participants to build autonomous agentic applications using open-source m
luma.com·38m ago
Four practical steps to control Azure Foundry token costs for agentic AI workloads
This article provides practical guidance on controlling token costs in Microsoft Azure Foundry, particularly for agentic AI workloads where
purplefrogsystems.com·1h ago
MerLean-Prover: A Recursive Agent Harness for Lean 4 Theorem Proving Outperforms Baselines
MerLean-Prover is an end-to-end Lean4 theorem prover that replaces 'sorry' declarations with kernel-checkable proofs using three agent types
arxiv.org·1h ago
Why small pull request policies can backfire on software quality
The article critiques a common software engineering policy that limits pull requests (PRs) to small sizes (e.g., 500 lines, few files). Whil
apenwarr.ca·3h ago
How Anthropic contains Claude's expanding access across its products
Anthropic describes how it has evolved its approach to granting Claude, its AI assistant, increasingly broad access to internal systems over
anthropic.com·5h ago
Testing Cursor's Jira integration: How ticket quality affects AI agent performance
Cursor launched a Jira integration that lets developers assign tickets directly to an AI agent, eliminating context switching. The author te
bit.ly·5h ago