class Prism::CallTargetNode
Represents assigning to a method call.
foo.bar, = 1 ^^^^^^^ begin rescue => foo.bar ^^^^^^^ end for foo.bar in baz do end ^^^^^^^
Attributes
private attr_reader flags: Integer
attr_reader name: Symbol
attr_reader receiver: Prism::node
Public Class Methods
def initialize: (Integer
flags, Prism::node receiver, Location
call_operator_loc
, Symbol
name, Location
message_loc
, Location
location) -> void
# File lib/prism/node.rb, line 3030 def initialize(source, flags, receiver, call_operator_loc, name, message_loc, location) @source = source @newline = false @location = location @flags = flags @receiver = receiver @call_operator_loc = call_operator_loc @name = name @message_loc = message_loc end
Similar to type
, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like type
, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.
def self.type: () -> Symbol
# File lib/prism/node.rb, line 3166 def self.type :call_target_node end
Public Instance Methods
def accept: (Visitor
visitor) -> void
# File lib/prism/node.rb, line 3042 def accept(visitor) visitor.visit_call_target_node(self) end
def attribute_write?: () -> bool
# File lib/prism/node.rb, line 3110 def attribute_write? flags.anybits?(CallNodeFlags::ATTRIBUTE_WRITE) end
def call_operator
: () -> String
# File lib/prism/node.rb, line 3120 def call_operator call_operator_loc.slice end
attr_reader call_operator_loc
: Location
# File lib/prism/node.rb, line 3082 def call_operator_loc location = @call_operator_loc return location if location.is_a?(Location) @call_operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end
def child_nodes
: () -> Array[nil | Node]
# File lib/prism/node.rb, line 3047 def child_nodes [receiver] end
def comment_targets
: () -> Array[Node | Location]
# File lib/prism/node.rb, line 3057 def comment_targets [receiver, call_operator_loc, message_loc] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File lib/prism/node.rb, line 3052 def compact_child_nodes [receiver] end
def copy: (?flags: Integer
, ?receiver: Prism::node, ?call_operator_loc: Location
, ?name: Symbol
, ?message_loc: Location
, ?location: Location
) -> CallTargetNode
# File lib/prism/node.rb, line 3062 def copy(flags: self.flags, receiver: self.receiver, call_operator_loc: self.call_operator_loc, name: self.name, message_loc: self.message_loc, location: self.location) CallTargetNode.new(source, flags, receiver, call_operator_loc, name, message_loc, location) end
def deconstruct_keys
: (Array keys) -> { flags: Integer
, receiver: Prism::node, call_operator_loc
: Location
, name: Symbol
, message_loc
: Location
, location: Location
}
# File lib/prism/node.rb, line 3070 def deconstruct_keys(keys) { flags: flags, receiver: receiver, call_operator_loc: call_operator_loc, name: name, message_loc: message_loc, location: location } end
def ignore_visibility?: () -> bool
# File lib/prism/node.rb, line 3115 def ignore_visibility? flags.anybits?(CallNodeFlags::IGNORE_VISIBILITY) end
def inspect(NodeInspector inspector) -> String
# File lib/prism/node.rb, line 3130 def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) flags = [("safe_navigation" if safe_navigation?), ("variable_call" if variable_call?), ("attribute_write" if attribute_write?), ("ignore_visibility" if ignore_visibility?)].compact inspector << "├── flags: #{flags.empty? ? "∅" : flags.join(", ")}\n" inspector << "├── receiver:\n" inspector << inspector.child_node(receiver, "│ ") inspector << "├── call_operator_loc: #{inspector.location(call_operator_loc)}\n" inspector << "├── name: #{name.inspect}\n" inspector << "└── message_loc: #{inspector.location(message_loc)}\n" inspector.to_str end
def message: () -> String
# File lib/prism/node.rb, line 3125 def message message_loc.slice end
attr_reader message_loc
: Location
# File lib/prism/node.rb, line 3092 def message_loc location = @message_loc return location if location.is_a?(Location) @message_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end
Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling ‘[cls1, cls2].include?(node.class)` or putting the node into a case statement and doing `case node; when cls1; when cls2; end`. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.
Instead, you can call type
, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.
def type: () -> Symbol
# File lib/prism/node.rb, line 3156 def type :call_target_node end
def variable_call?: () -> bool
# File lib/prism/node.rb, line 3105 def variable_call? flags.anybits?(CallNodeFlags::VARIABLE_CALL) end