Folding
An object for distinguishing several functions as ways to fold the model
Attributes
- Source
- Folding.scala
- Graph
-
- Supertypes
-
class Objecttrait Matchableclass Any
- Self type
-
Folding.type
Members list
Value members
Concrete methods
Folding with state from an element of type V
Folding with state from an element of type V
Type parameters
- CV
-
The type of the element being folded
- S
-
The type of the state for folding
Value parameters
- child
-
The node to fold through
- f
-
The folding function which takes 3 arguments and returns an
S(list the initialstate) - parent
-
The parent node of CV which must be its direct container
- state
-
Initial value of arbitrary type
Sthat can be used to fold the nodes into and provides the result type
Attributes
- Returns
-
The resulting state of type
S - Source
- Folding.scala
A Typical foldLeft as with scala.collection.Seq but utilizing a stack of parents as well.
A Typical foldLeft as with scala.collection.Seq but utilizing a stack of parents as well.
Type parameters
- CT
-
The type of nodes to fold over
- S
-
The type of the state
Value parameters
- f
-
The folder function which is passed the state [S], the node or its container, and the list of parents
- parents
-
The parents of the
valuenode - top
-
The containing top node of
value - zeroValue
-
The "zero" value for the fold, the value at which folding starts
Attributes
- Returns
-
The folded state
- See also
-
scala.collection.Seq.foldLeft
- Source
- Folding.scala