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langref: add documentation for unions with inferred tag and explicit tag values

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This commit is contained in:
Justus Klausecker
2025-08-17 18:35:12 +02:00
committed by Andrew Kelley
parent c315f2bc2e
commit cf90a5e451
2 changed files with 24 additions and 0 deletions
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7
doc/langref.html.in
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@@ -2469,6 +2469,13 @@ or
</p>
{#code|test_union_method.zig#}
<p>
Unions with inferred enum tag types can also assign ordinal values to their inferred tag.
This requires the tag to specify an explicit integer type.
{#link|@intFromEnum#} can be used to access the ordinal value corresponding to the active field.
</p>
{#code|test_tagged_union_with_tag_values.zig#}
<p>
{#link|@tagName#} can be used to return a {#link|comptime#}
{#syntax#}[:0]const u8{#endsyntax#} value representing the field name: