sbt.internal.util

AttributeMap

trait AttributeMap extends AnyRef

An immutable map where a key is the tuple (String,T) for a fixed type T and can only be associated with values of type T. It is therefore possible for this map to contain mappings for keys with the same label but different types. Excluding this possibility is the responsibility of the client if desired.

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Abstract Value Members

  1. abstract def ++(o: AttributeMap): AttributeMap

    Combines the mappings in o with the mappings in this map, with mappings in o taking precedence over existing mappings.

  2. abstract def ++(o: Iterable[AttributeEntry[_]]): AttributeMap

    Adds the mappings in o to this map, with mappings in o taking precedence over existing mappings.

  3. abstract def apply[T](k: AttributeKey[T]): T

    Gets the value of type T associated with the key k.

    Gets the value of type T associated with the key k. If a key with the same label but different type is defined, this method will fail.

  4. abstract def contains[T](k: AttributeKey[T]): Boolean

    Returns true if this map contains a mapping for k.

    Returns true if this map contains a mapping for k. If a key with the same label but a different type is defined in this map, this method will return false.

  5. abstract def entries: Iterable[AttributeEntry[_]]

    All mappings in this map.

    All mappings in this map. The AttributeEntry type preserves the typesafety of mappings, although the specific types are unknown.

  6. abstract def get[T](k: AttributeKey[T]): Option[T]

    Gets the value of type T associated with the key k or None if no value is associated.

    Gets the value of type T associated with the key k or None if no value is associated. If a key with the same label but a different type is defined, this method will return None.

  7. abstract def isEmpty: Boolean

    true if there are no mappings in this map, false if there are.

  8. abstract def keys: Iterable[AttributeKey[_]]

    All keys with defined mappings.

    All keys with defined mappings. There may be multiple keys with the same label, but different types.

  9. abstract def put[T](k: AttributeKey[T], value: T): AttributeMap

    Adds the mapping k -> value to this map, replacing any existing mapping for k.

    Adds the mapping k -> value to this map, replacing any existing mapping for k. Any mappings for keys with the same label but different types are unaffected.

  10. abstract def remove[T](k: AttributeKey[T]): AttributeMap

    Returns this map without the mapping for k.

    Returns this map without the mapping for k. This method will not remove a mapping for a key with the same label but a different type.

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