Function NewRegexpCache

pkg/sql/sem/tree/regexp_cache.go:36–45

NewRegexpCache creates a new RegexpCache of the given size. The underlying cache internally uses a hash map, so lookups are cheap.

(size int)

// The underlying cache internally uses a hash map, so lookups
// are cheap.
func NewRegexpCache(size int) *RegexpCache {
	return &RegexpCache{
		cache: cache.NewUnorderedCache(cache.Config{
			Policy: cache.CacheLRU,
			ShouldEvict: func(s int, key, value interface{}) bool {
				return s > size
			},
		}),
	}
}

// GetRegexp consults the cache for the regular expressions stored for
// the given key, compiling the key's pattern if it is not already