Class: SyntaxTree::Backref
- Inherits:
-
Object
- Object
- SyntaxTree::Backref
- Defined in:
- lib/syntax_tree.rb
Overview
Backref represents a global variable referencing a matched value. It comes in the form of a $ followed by a positive integer.
$1
Instance Attribute Summary collapse
-
#comments ⇒ Object
readonly
- Array[ Comment | EmbDoc ]
-
the comments attached to this node.
-
#location ⇒ Object
readonly
- Location
-
the location of this node.
-
#value ⇒ Object
readonly
- String
-
the name of the global backreference variable.
Instance Method Summary collapse
- #child_nodes ⇒ Object
- #format(q) ⇒ Object
-
#initialize(value:, location:, comments: []) ⇒ Backref
constructor
A new instance of Backref.
- #pretty_print(q) ⇒ Object
- #to_json(*opts) ⇒ Object
Constructor Details
#initialize(value:, location:, comments: []) ⇒ Backref
Returns a new instance of Backref.
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# File 'lib/syntax_tree.rb', line 2031 def initialize(value:, location:, comments: []) @value = value @location = location @comments = comments end |
Instance Attribute Details
#comments ⇒ Object (readonly)
- Array[ Comment | EmbDoc ]
-
the comments attached to this node
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# File 'lib/syntax_tree.rb', line 2029 def comments @comments end |
#location ⇒ Object (readonly)
- Location
-
the location of this node
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# File 'lib/syntax_tree.rb', line 2026 def location @location end |
#value ⇒ Object (readonly)
- String
-
the name of the global backreference variable
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# File 'lib/syntax_tree.rb', line 2023 def value @value end |
Instance Method Details
#child_nodes ⇒ Object
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# File 'lib/syntax_tree.rb', line 2037 def child_nodes [] end |
#format(q) ⇒ Object
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# File 'lib/syntax_tree.rb', line 2041 def format(q) q.text(value) end |
#pretty_print(q) ⇒ Object
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# File 'lib/syntax_tree.rb', line 2045 def pretty_print(q) q.group(2, "(", ")") do q.text("backref") q.breakable q.pp(value) q.pp(Comment::List.new(comments)) end end |
#to_json(*opts) ⇒ Object
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# File 'lib/syntax_tree.rb', line 2056 def to_json(*opts) { type: :backref, value: value, loc: location, cmts: comments }.to_json( *opts ) end |