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Feb 7, 2017 at 23:40
You can actually teach the Emacs byte-compiler to use specific opcodes for your functions! I've made dash.el faster:
Ensure that -first-item is as fast as car by Wilfred · Pull Request #210 · magnars/dash.el
Ensure that -first-item is as fast as car by Wilfred · Pull Request #210 · magnars/dash.el
Add symbol properties to -first-item so the byte-compiler compiles calls to the car opcode. This ensures that -first-item has the same performance as car. Add symbol properties to -first-item so th...

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I've started keeping a list of particularly interesting bugs and patches that I've worked on: https://github.com/Wilfred/interesting-code The time that I once removed *a single closing paren* in Emacs is still my favourite.
GitHub - Wilfred/interesting-code
GitHub - Wilfred/interesting-code
Contribute to Wilfred/interesting-code development by creating an account on GitHub.