Mitchell Hashimoto • 9/23/2024

Tagged Union Subsets with Comptime in Zig

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This technical article details a specific Zig programming challenge: handling subsets of a tagged union without losing compiler safety. Using the example of keybind actions in the Ghostty terminal project, it demonstrates how the `comptime` feature can generate type-safe switch statements for only a subset of union cases, avoiding unsafe catch-all `else` clauses.

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#type systems #metaprogramming #Zig
Tagged Union Subsets with Comptime in Zig

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