TECH Signal 403

C3 0.8.3 adds @feat attribute, replacing top-level @if for conditional compilation

c3-lang.org 6 hours ago 9 min read ↗ Original

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C3 0.8.3 introduces the @feat attribute for top-level conditional compilation, replacing @if, and also adds MacOS SDK fetching, Windows Aarch64 support, and regex support.

WHY IT MATTERS

The @feat attribute makes conditional compilation deterministic by using compiler-provided feature flags known before declaration registration, fixing unpredictable analysis ordering with @if. This improves IDE support and reduces forced analysis. Additionally, MacOS SDK fetching and Windows Aarch64 support ease cross-compilation.

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The three things worth knowing

@feat uses compiler-provided feature flags known before declaration registration, solving the ordering problem of @if.

$feature is renamed to $feat, with $feature deprecated and removed in 0.9.0.

C3 0.8.3 also adds MacOS SDK fetching, Windows Aarch64 support, and experimental regex support.

THE CLUSTER

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