struct Sthx::TreeData

• Sthx::TreeData
• Struct
• Value
• Object

Overview

Tree consists of two parts: a "header" part with the tree's capture id, begin character index, and span; and a "body" part. TreeData is this body part. It is filled by callees and then wrapped in a tree by the caller after it determines the end position. A tree cannot be constructed without knowing the end position - and a tree "body", TreeData, can.

Defined in:

synthax/tree.cr

Constructors

• .new(children : Pf::Map(Int32, Tree) | Nil = nil, attributes : Pf::Map(String, Bytes) | Nil = nil)

Instance Method Summary

• #append(tree : Tree)

  Returns a copy of self with tree appended as a child tree.

• #degree : Int32

  Returns the number of children.

• #each_attribute(& : String, Bytes -> ) : Nil

  Yields each attribute: its name and a string view of its value.

• #each_child(& : Tree -> ) : Nil

  Yields each child tree.

• #empty? : Bool

  Returns true if this tree data object stores no children and no attributes.

• #getattr?(name : String) : Bytes | Nil

  Returns a string view of the value of the attribute with the given name.

• #getchild?(n : Int32) : Tree | Nil

  Returns the nth child tree.

• #inspect(io, tree, inner, outer)
• #setattr(name : String, value : Bytes) : TreeData

  Returns a copy of self where the attribute with the given name is assigned to value, a string view of the value of the attribute.

Constructor Detail

Instance Method Detail