Behaves the same as ->LazyMap, except that if m is already a lazy map, returns it directly. This prevents the creation of a lazy map wrapping another lazy map, which (while not terribly wrong) is not the best idea.

Realizes all the values in a lazy map, returning a regular map.

Replace all the unrealized values in a lazy map with placeholders, returning a regular map. No matter what is done to the returned map, the values in the original map will not be forced. v can be an object to use for all the values or a function of the key.

Used in clojure.test assertions because (is (not (thrown? …))) doesn’t work. See http://acidwords.com/posts/2015-07-23-fixing-negation-in-clojure-test.html

Constructs a lazy map from a literal map. None of the values are evaluated until they are accessed from the map.

This is a dispatch function for clojure.pprint that prints lazy maps without forcing them.

Construct a lazy map entry with the given key and value. If you want to take advantage of the laziness, the value should be a delay.

Creates a map entry (as returned by calling seq on a map) with the given key and value.

Applies f to each of the keys of a map, returning a new map.

Applies f to each of the values of a map, returning a new map.