BuildFrom

@implicitNotFound(msg = "Cannot construct a collection of type ${C} with elements of type ${A} based on a collection of type ${From}.") trait BuildFrom[-From, -A, +C]

Builds a collection of type C from elements of type A when a source collection of type From is available.

Builds a collection of type C from elements of type A when a source collection of type From is available. Implicit instances of BuildFrom are available for all collection types.

Type Params

A: Type of elements (e.g. Int, Boolean, etc.)
C: Type of collection (e.g. List[Int], TreeMap[Int, String], etc.)
From: Type of source collection

Companion

object

class Any

Value members

Abstract methods

Get a Builder for the collection.

Get a Builder for the collection. For non-strict collection types this will use an intermediate buffer. Building collections with fromSpecific is preferred because it can be lazy for lazy collections.

Concrete methods

Partially apply a BuildFrom to a Factory

Deprecated methods

@deprecated("Use newBuilder() instead of apply()", "2.13.0") @inline

Deprecated