class Prism::CaseMatchNode
Represents the use of a case statement for pattern matching.
case true in false end ^^^^^^^^^
Attributes
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 ^^^^
Represents the predicate of the case match. This can be either nil
or any non-void expressions.
case true; in false; end ^^^^
Public Class Methods
Source
# File lib/prism/node.rb, line 3529 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.
Source
# File lib/prism/node.rb, line 3649 def self.type :case_match_node end
Return a symbol representation of this node type. See Node::type
.
Public Instance Methods
Source
# File lib/prism/node.rb, line 3655 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.
Source
# File lib/prism/node.rb, line 3542 def accept(visitor) visitor.visit_case_match_node(self) end
def accept: (Visitor
visitor) -> void
Source
# File lib/prism/node.rb, line 3629 def case_keyword case_keyword_loc.slice end
def case_keyword
: () -> String
Source
# File lib/prism/node.rb, line 3600 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 ^^^^
Source
# File lib/prism/node.rb, line 3547 def child_nodes [predicate, *conditions, else_clause] end
def child_nodes
: () -> Array
Source
# File lib/prism/node.rb, line 3561 def comment_targets [*predicate, *conditions, *else_clause, case_keyword_loc, end_keyword_loc] #: Array[Prism::node | Location] end
def comment_targets
: () -> Array[Node | Location]
Source
# File lib/prism/node.rb, line 3552 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
Source
# File lib/prism/node_ext.rb, line 470 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
.
Source
# File lib/prism/node.rb, line 3566 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
def copy: (?node_id: Integer
, ?location: Location
, ?flags: Integer
, ?predicate: Prism::node?, ?conditions: Array, ?else_clause: ElseNode
?, ?case_keyword_loc: Location
, ?end_keyword_loc: Location
) -> CaseMatchNode
Source
# File lib/prism/node.rb, line 3574 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
}
Source
# File lib/prism/node.rb, line 3634 def end_keyword end_keyword_loc.slice end
def end_keyword
: () -> String
Source
# File lib/prism/node.rb, line 3616 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 ^^^
Source
# File lib/prism/node.rb, line 3639 def inspect InspectVisitor.compose(self) end
def inspect -> String
Source
# File lib/prism/node.rb, line 3608 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.
Source
# File lib/prism/node.rb, line 3624 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.