class Prism::IndexTargetNode
^^^^^^^^
for foo in baz do end
end
^^^^^^^^
rescue => foo[bar]<br>begin<br><br>^^^^^^^^<br>foo, = 1
Represents assigning to an index.
def self.type
class, but should be faster in a case statement or an array comparison.
Note that like #type, it will still be slower than using == for a single
splitting on the type of the node without having to do a long === chain.
Similar to #type, this method returns a symbol that you can use for
def self.type :index_target_node end
def accept(visitor)
def accept(visitor) visitor.visit_index_target_node(self) end
def attribute_write?
def attribute_write? flags.anybits?(CallNodeFlags::ATTRIBUTE_WRITE) end
def child_nodes
def child_nodes [receiver, arguments, block] end
def closing
def closing closing_loc.slice end
def comment_targets
def comment_targets [receiver, opening_loc, *arguments, closing_loc, *block] end
def compact_child_nodes
def compact_child_nodes compact = [] compact << receiver compact << arguments if arguments compact << block if block compact end
def copy(**params)
def copy(**params) IndexTargetNode.new( params.fetch(:flags) { flags }, params.fetch(:receiver) { receiver }, params.fetch(:opening_loc) { opening_loc }, params.fetch(:arguments) { arguments }, params.fetch(:closing_loc) { closing_loc }, params.fetch(:block) { block }, params.fetch(:location) { location }, ) end
def deconstruct_keys(keys)
def deconstruct_keys(keys) { flags: flags, receiver: receiver, opening_loc: opening_loc, arguments: arguments, closing_loc: closing_loc, block: block, location: location } end
def ignore_visibility?
def ignore_visibility? flags.anybits?(CallNodeFlags::IGNORE_VISIBILITY) end
def initialize(flags, receiver, opening_loc, arguments, closing_loc, block, location)
def initialize(flags, receiver, opening_loc, arguments, closing_loc, block, location) @newline = false @flags = flags @receiver = receiver @opening_loc = opening_loc @arguments = arguments @closing_loc = closing_loc @block = block @location = location end
def inspect(inspector = NodeInspector.new)
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 << "├── opening_loc: #{inspector.location(opening_loc)}\n" if (arguments = self.arguments).nil? inspector << "├── arguments: ∅\n" else inspector << "├── arguments:\n" inspector << arguments.inspect(inspector.child_inspector("│ ")).delete_prefix(inspector.prefix) end inspector << "├── closing_loc: #{inspector.location(closing_loc)}\n" if (block = self.block).nil? inspector << "└── block: ∅\n" else inspector << "└── block:\n" inspector << block.inspect(inspector.child_inspector(" ")).delete_prefix(inspector.prefix) end inspector.to_str end
def opening
def opening opening_loc.slice end
def safe_navigation?
def safe_navigation? flags.anybits?(CallNodeFlags::SAFE_NAVIGATION) end
def type
keys will use a jump table.
you can take advantage of the fact that case statements with all symbol
it uses a single integer comparison, but also because if you're on CRuby
can use for comparison. This is faster than the other approaches because
Instead, you can call #type, which will return to you a symbol that you
method calls, and/or array allocations.
these approaches are relatively slow because of the constant lookups,
case statement and doing `case node; when cls1; when cls2; end`. Both of
calling `[cls1, cls2].include?(node.class)` or putting the node into a
classes to see what kind of behavior to perform. Usually this is done by
Sometimes you want to check an instance of a node against a list of
def type :index_target_node end
def variable_call?
def variable_call? flags.anybits?(CallNodeFlags::VARIABLE_CALL) end