Represents the use of the ‘if` keyword, either in the block form or the modifier form, or a ternary expression.
bar if foo ^^^^^^^^^^ if foo then bar end ^^^^^^^^^^^^^^^^^^^ foo ? bar : baz ^^^^^^^^^^^^^^^
The node for the condition the ‘IfNode` is testing.
if foo
^^^
bar
end
bar if foo
^^^
foo ? bar : baz
^^^
Represents the body of statements that will be executed when the predicate is evaluated as truthy. Will be ‘nil` when no body is provided.
if foo bar ^^^ baz ^^^ end
Represents an ‘ElseNode` or an `IfNode` when there is an `else` or an `elsif` in the `if` statement.
if foo
bar
elsif baz
^^^^^^^^^
qux
^^^
end
^^^
if foo then bar else baz end
^^^^^^^^^^^^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8447
def initialize(source, node_id, location, flags, if_keyword_loc, predicate, then_keyword_loc, statements, subsequent, end_keyword_loc)
@source = source
@node_id = node_id
@location = location
@flags = flags
@if_keyword_loc = if_keyword_loc
@predicate = predicate
@then_keyword_loc = then_keyword_loc
@statements = statements
@subsequent = subsequent
@end_keyword_loc = end_keyword_loc
end
Initialize a new IfNode node.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8635
def self.type
:if_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 8641
def ===(other)
other.is_a?(IfNode) &&
(if_keyword_loc.nil? == other.if_keyword_loc.nil?) &&
(predicate === other.predicate) &&
(then_keyword_loc.nil? == other.then_keyword_loc.nil?) &&
(statements === other.statements) &&
(subsequent === other.subsequent) &&
(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 8461
def accept(visitor)
visitor.visit_if_node(self)
end
def accept: (Visitor visitor) -> void
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8466
def child_nodes
[predicate, statements, subsequent]
end
def child_nodes: () -> Array[nil | Node]
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8480
def comment_targets
[*if_keyword_loc, predicate, *then_keyword_loc, *statements, *subsequent, *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 8471
def compact_child_nodes
compact = [] #: Array[Prism::node]
compact << predicate
compact << statements if statements
compact << subsequent if subsequent
compact
end
def compact_child_nodes: () -> Array
# File tmp/rubies/ruby-3.4.1/lib/prism/node_ext.rb, line 485
def consequent
deprecated("subsequent")
subsequent
end
Returns the subsequent if/elsif/else clause of the if node. This method is deprecated in favor of subsequent.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8485
def copy(node_id: self.node_id, location: self.location, flags: self.flags, if_keyword_loc: self.if_keyword_loc, predicate: self.predicate, then_keyword_loc: self.then_keyword_loc, statements: self.statements, subsequent: self.subsequent, end_keyword_loc: self.end_keyword_loc)
IfNode.new(source, node_id, location, flags, if_keyword_loc, predicate, then_keyword_loc, statements, subsequent, end_keyword_loc)
end
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8493
def deconstruct_keys(keys)
{ node_id: node_id, location: location, if_keyword_loc: if_keyword_loc, predicate: predicate, then_keyword_loc: then_keyword_loc, statements: statements, subsequent: subsequent, end_keyword_loc: end_keyword_loc }
end
def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, if_keyword_loc: Location?, predicate: Prism::node, then_keyword_loc: Location?, statements: StatementsNode?, subsequent: ElseNode | IfNode | nil, end_keyword_loc: Location? }
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8620
def end_keyword
end_keyword_loc&.slice
end
def end_keyword: () -> String?
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8591
def end_keyword_loc
location = @end_keyword_loc
case location
when nil
nil
when Location
location
else
@end_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
end
The location of the ‘end` keyword if present, `nil` otherwise.
if foo bar end ^^^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8610
def if_keyword
if_keyword_loc&.slice
end
def if_keyword: () -> String?
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8503
def if_keyword_loc
location = @if_keyword_loc
case location
when nil
nil
when Location
location
else
@if_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
end
The location of the ‘if` keyword if present.
bar if foo
^^
The ‘if_keyword_loc` field will be `nil` when the `IfNode` represents a ternary expression.
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8625
def inspect
InspectVisitor.compose(self)
end
def inspect -> String
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8605
def save_end_keyword_loc(repository)
repository.enter(node_id, :end_keyword_loc) unless @end_keyword_loc.nil?
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 8517
def save_if_keyword_loc(repository)
repository.enter(node_id, :if_keyword_loc) unless @if_keyword_loc.nil?
end
Save the if_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 8556
def save_then_keyword_loc(repository)
repository.enter(node_id, :then_keyword_loc) unless @then_keyword_loc.nil?
end
Save the then_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 8615
def then_keyword
then_keyword_loc&.slice
end
def then_keyword: () -> String?
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8542
def then_keyword_loc
location = @then_keyword_loc
case location
when nil
nil
when Location
location
else
@then_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
end
The location of the ‘then` keyword (if present) or the `?` in a ternary expression, `nil` otherwise.
if foo then bar end
^^^^
a ? b : c
^
# File tmp/rubies/ruby-3.4.1/lib/prism/node.rb, line 8630
def type
:if_node
end
Return a symbol representation of this node type. See ‘Node#type`.