MapKeys [Src] [K: K, V: V, H: HashFunction[K] val, M: HashMap[K, V, H] #read]

An iterator over the keys in a map.

class ref MapKeys[K: K, V: V, H: HashFunction[K] val, M: HashMap[K, V, H] #read] is
  Iterator[M->K] ref

Implements

• Iterator[M->K] ref

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Constructors

create [Src]

new ref create(
  map: M)
: MapKeys[K, V, H, M] ref^

Parameters

• map: M

Returns

• MapKeys[K, V, H, M] ref^

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Public Functions

has_next [Src]

True if it believes there are remaining entries. May not be right if values were added or removed from the map.

fun box has_next()
: Bool val

Returns

• Bool val

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next [Src]

Returns the next key, or raises an error if there isn't one. If keys are added during iteration, this may not return all keys.

fun ref next()
: M->K ?

Returns

• M->K ?

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