Represents the use of a case statement for pattern matching.
case true in false end ^^^^^^^^^
Represents the predicate of the case match. This can be either ‘nil` or any [non-void expressions](github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression).
case true; in false; end ^^^^
Represents the conditions of the case match.
case true; in false; end
^^^^^^^^
Represents the else clause of the case match.
case true; in false; else; end
^^^^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3526
def initialize(source, node_id, location, flags, predicate, conditions, else_clause, case_keyword_loc, end_keyword_loc)
@source = source
@node_id = node_id
@location = location
@flags = flags
@predicate = predicate
@conditions = conditions
@else_clause = else_clause
@case_keyword_loc = case_keyword_loc
@end_keyword_loc = end_keyword_loc
end
Initialize a new CaseMatchNode node.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3646
def self.type
:case_match_node
end
Return a symbol representation of this node type. See ‘Node::type`.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3652
def ===(other)
other.is_a?(CaseMatchNode) &&
(predicate === other.predicate) &&
(conditions.length == other.conditions.length) &&
conditions.zip(other.conditions).all? { |left, right| left === right } &&
(else_clause === other.else_clause) &&
(case_keyword_loc.nil? == other.case_keyword_loc.nil?) &&
(end_keyword_loc.nil? == other.end_keyword_loc.nil?)
end
Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3539
def accept(visitor)
visitor.visit_case_match_node(self)
end
def accept: (Visitor visitor) -> void
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3626
def case_keyword
case_keyword_loc.slice
end
def case_keyword: () -> String
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3597
def case_keyword_loc
location = @case_keyword_loc
return location if location.is_a?(Location)
@case_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
Represents the location of the ‘case` keyword.
case true; in false; end ^^^^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3544
def child_nodes
[predicate, *conditions, else_clause]
end
def child_nodes: () -> Array[nil | Node]
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3558
def comment_targets
[*predicate, *conditions, *else_clause, case_keyword_loc, end_keyword_loc] #: Array[Prism::node | Location]
end
def comment_targets: () -> Array[Node | Location]
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3549
def compact_child_nodes
compact = [] #: Array[Prism::node]
compact << predicate if predicate
compact.concat(conditions)
compact << else_clause if else_clause
compact
end
def compact_child_nodes: () -> Array
# File tmp/rubies/ruby-3.4.1/lib/prism/node_ext.rb, line 467
def consequent
deprecated("else_clause")
else_clause
end
Returns the else clause of the case match node. This method is deprecated in favor of else_clause.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3563
def copy(node_id: self.node_id, location: self.location, flags: self.flags, predicate: self.predicate, conditions: self.conditions, else_clause: self.else_clause, case_keyword_loc: self.case_keyword_loc, end_keyword_loc: self.end_keyword_loc)
CaseMatchNode.new(source, node_id, location, flags, predicate, conditions, else_clause, case_keyword_loc, end_keyword_loc)
end
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3571
def deconstruct_keys(keys)
{ node_id: node_id, location: location, predicate: predicate, conditions: conditions, else_clause: else_clause, case_keyword_loc: case_keyword_loc, end_keyword_loc: end_keyword_loc }
end
def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, predicate: Prism::node?, conditions: Array, else_clause: ElseNode?, case_keyword_loc: Location, end_keyword_loc: Location }
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3631
def end_keyword
end_keyword_loc.slice
end
def end_keyword: () -> String
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3613
def end_keyword_loc
location = @end_keyword_loc
return location if location.is_a?(Location)
@end_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
Represents the location of the ‘end` keyword.
case true; in false; end
^^^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3636
def inspect
InspectVisitor.compose(self)
end
def inspect -> String
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3605
def save_case_keyword_loc(repository)
repository.enter(node_id, :case_keyword_loc)
end
Save the case_keyword_loc location using the given saved source so that it can be retrieved later.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3621
def save_end_keyword_loc(repository)
repository.enter(node_id, :end_keyword_loc)
end
Save the end_keyword_loc location using the given saved source so that it can be retrieved later.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 3641
def type
:case_match_node
end
Return a symbol representation of this node type. See ‘Node#type`.