Class: SyntaxTree::MLHS
Overview
MLHS represents a list of values being destructured on the left-hand side of a multiple assignment.
first, second, third = value
Instance Attribute Summary collapse
-
#comma ⇒ Object
- boolean
-
whether or not there is a trailing comma at the end of this list, which impacts destructuring.
-
#comments ⇒ Object
readonly
- Array[ Comment | EmbDoc ]
-
the comments attached to this node.
-
#parts ⇒ Object
readonly
- Array[ ARefField | ArgStar | ConstPathField | Field | Ident | MLHSParen | TopConstField | VarField
-
] the parts of the left-hand side of a multiple assignment.
Attributes inherited from Node
Instance Method Summary collapse
- #===(other) ⇒ Object
- #accept(visitor) ⇒ Object
- #child_nodes ⇒ Object (also: #deconstruct)
- #copy(parts: nil, location: nil, comma: nil) ⇒ Object
- #deconstruct_keys(_keys) ⇒ Object
- #format(q) ⇒ Object
-
#initialize(parts:, comma: false, location:) ⇒ MLHS
constructor
A new instance of MLHS.
Methods inherited from Node
#construct_keys, #end_char, #pretty_print, #start_char, #to_json, #to_mermaid
Constructor Details
#initialize(parts:, comma: false, location:) ⇒ MLHS
Returns a new instance of MLHS.
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# File 'lib/syntax_tree/node.rb', line 7645 def initialize(parts:, comma: false, location:) @parts = parts @comma = comma @location = location @comments = [] end |
Instance Attribute Details
#comma ⇒ Object
- boolean
-
whether or not there is a trailing comma at the end of this
list, which impacts destructuring. It’s an attr_accessor so that while the syntax tree is being built it can be set by its parent node
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# File 'lib/syntax_tree/node.rb', line 7640 def comma @comma end |
#comments ⇒ Object (readonly)
- Array[ Comment | EmbDoc ]
-
the comments attached to this node
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# File 'lib/syntax_tree/node.rb', line 7643 def comments @comments end |
#parts ⇒ Object (readonly)
[
Array[
ARefField | ArgStar | ConstPathField | Field | Ident | MLHSParen |
TopConstField | VarField
]
] the parts of the left-hand side of a multiple assignment
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# File 'lib/syntax_tree/node.rb', line 7635 def parts @parts end |
Instance Method Details
#===(other) ⇒ Object
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# File 'lib/syntax_tree/node.rb', line 7683 def ===(other) other.is_a?(MLHS) && ArrayMatch.call(parts, other.parts) && comma === other.comma end |
#accept(visitor) ⇒ Object
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# File 'lib/syntax_tree/node.rb', line 7652 def accept(visitor) visitor.visit_mlhs(self) end |
#child_nodes ⇒ Object Also known as: deconstruct
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# File 'lib/syntax_tree/node.rb', line 7656 def child_nodes parts end |
#copy(parts: nil, location: nil, comma: nil) ⇒ Object
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# File 'lib/syntax_tree/node.rb', line 7660 def copy(parts: nil, location: nil, comma: nil) node = MLHS.new( parts: parts || self.parts, location: location || self.location, comma: comma || self.comma ) node.comments.concat(comments.map(&:copy)) node end |
#deconstruct_keys(_keys) ⇒ Object
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# File 'lib/syntax_tree/node.rb', line 7674 def deconstruct_keys(_keys) { parts: parts, location: location, comma: comma, comments: comments } end |
#format(q) ⇒ Object
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# File 'lib/syntax_tree/node.rb', line 7678 def format(q) q.seplist(parts) { |part| q.format(part) } q.text(",") if comma end |