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Change-Id: Ib51283b35d6d35acd7a90cd531ff6897a23d9894 GitHub-Last-Rev: dd485f332e58c9467d68ed571317dfd56eea9d16 GitHub-Pull-Request: golang/go#66985 Reviewed-on: https://go-review.googlesource.com/c/go/+/580797 Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Joedian Reid <joedian@google.com>
14 lines
579 B
Markdown
14 lines
579 B
Markdown
### New unique package
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The new [unique](/pkg/unique) package provides facilities for
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canonicalizing values (like "interning" or "hash-consing").
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Any value of comparable type may be canonicalized with the new
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`Make[T]` function, which produces a reference to a canonical copy of
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the value in the form of a `Handle[T]`.
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Two `Handle[T]` are equal if and only if the values used to produce the
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handles are equal, allowing programs to deduplicate values and reduce
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their memory footprint.
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Comparing two `Handle[T]` values is efficient, reducing down to a simple
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pointer comparison.
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