class Prism::InterpolatedSymbolNode
Represents a symbol literal that contains interpolation.
:"foo #{bar} baz" ^^^^^^^^^^^^^^^^^
Attributes
attr_reader parts: Array[StringNode | EmbeddedStatementsNode
| EmbeddedVariableNode]
Public Class Methods
def initialize: (Location
? opening_loc
, Array[StringNode | EmbeddedStatementsNode
| EmbeddedVariableNode] parts, Location
? closing_loc
, Location
location) -> void
# File lib/prism/node.rb, line 11011 def initialize(source, opening_loc, parts, closing_loc, location) @source = source @newline = false @location = location @opening_loc = opening_loc @parts = parts @closing_loc = closing_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 11131 def self.type :interpolated_symbol_node end
Public Instance Methods
def accept: (Visitor
visitor) -> void
# File lib/prism/node.rb, line 11021 def accept(visitor) visitor.visit_interpolated_symbol_node(self) end
def child_nodes
: () -> Array[nil | Node]
# File lib/prism/node.rb, line 11031 def child_nodes [*parts] end
def closing: () -> String
?
# File lib/prism/node.rb, line 11094 def closing closing_loc&.slice end
attr_reader closing_loc
: Location
?
# File lib/prism/node.rb, line 11075 def closing_loc location = @closing_loc case location when nil nil when Location location else @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end end
def comment_targets
: () -> Array[Node | Location]
# File lib/prism/node.rb, line 11041 def comment_targets [*opening_loc, *parts, *closing_loc] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File lib/prism/node.rb, line 11036 def compact_child_nodes [*parts] end
def copy: (?opening_loc: Location
?, ?parts: Array[StringNode | EmbeddedStatementsNode
| EmbeddedVariableNode], ?closing_loc: Location
?, ?location: Location
) -> InterpolatedSymbolNode
# File lib/prism/node.rb, line 11046 def copy(opening_loc: self.opening_loc, parts: self.parts, closing_loc: self.closing_loc, location: self.location) InterpolatedSymbolNode.new(source, opening_loc, parts, closing_loc, location) end
def deconstruct_keys
: (Array keys) -> { opening_loc
: Location
?, parts: Array[StringNode | EmbeddedStatementsNode
| EmbeddedVariableNode], closing_loc
: Location
?, location: Location
}
# File lib/prism/node.rb, line 11054 def deconstruct_keys(keys) { opening_loc: opening_loc, parts: parts, closing_loc: closing_loc, location: location } end
def inspect(NodeInspector inspector) -> String
# File lib/prism/node.rb, line 11099 def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) inspector << "├── opening_loc: #{inspector.location(opening_loc)}\n" inspector << "├── parts: #{inspector.list("#{inspector.prefix}│ ", parts)}" inspector << "└── closing_loc: #{inspector.location(closing_loc)}\n" inspector.to_str end
def opening: () -> String
?
# File lib/prism/node.rb, line 11089 def opening opening_loc&.slice end
attr_reader opening_loc
: Location
?
# File lib/prism/node.rb, line 11059 def opening_loc location = @opening_loc case location when nil nil when Location location else @opening_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end 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 11121 def type :interpolated_symbol_node end