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Feb 15, 2025 at 23:12
In LSP, a position is represented as a line number and a column offset (in Unicode code units): https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#position This is pretty elegant. You'll get the correct line regardless of encoding bugs, and the editor already knows the line number so it's cheap to compute.
Specification
This document describes the 3.17.x version of the language server protocol. An implementation for node of the 3.17.x version of the protocol can be found here.

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Mar 15, 2026 at 20:42
Really elegant developer tool: Go's inline IDE feature is used with deprecation markers, so call sites are autofixed from OldApi() to NewApi() based on the implementation of OldApi.
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Jan 10, 2025 at 01:33
Go has an elegant approach to defining example functions, which are shown in docs as `main()` with the output:
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How to add examples, which double as tests, to your packages.
Jul 27, 2024 at 04:13
Bril is a cute intermediate language for teaching (think simplified LLVM IR): https://www.cs.cornell.edu/~asampson/blog/bril.html The idea of providing a standard JSON format to help students write basic passes is really elegant.
Bril: An Intermediate Language for Teaching Compilers
Bril: An Intermediate Language for Teaching Compilers
I created a new intermediate language, called Bril, for teaching my funky open-source, hands-on compilers course. Because it’s for education, Bril prioritizes simplicity and regularity over more typical compiler priorities like performance and concision. This is an overview of Bril’s design, its quirks, and the ecosystem that has grown up around it since 2019.