class Prism::RescueModifierNode
^^^^^^^^^^^^^^
foo rescue nil
Represents an expression modified with a rescue.
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 :rescue_modifier_node end
def accept(visitor)
def accept(visitor) visitor.visit_rescue_modifier_node(self) end
def child_nodes
def child_nodes [expression, rescue_expression] end
def comment_targets
def comment_targets [expression, keyword_loc, rescue_expression] end
def compact_child_nodes
def compact_child_nodes [expression, rescue_expression] end
def copy(**params)
def copy(**params) RescueModifierNode.new( params.fetch(:expression) { expression }, params.fetch(:keyword_loc) { keyword_loc }, params.fetch(:rescue_expression) { rescue_expression }, params.fetch(:location) { location }, ) end
def deconstruct_keys(keys)
def deconstruct_keys(keys) { expression: expression, keyword_loc: keyword_loc, rescue_expression: rescue_expression, location: location } end
def initialize(expression, keyword_loc, rescue_expression, location)
def initialize(expression, keyword_loc, rescue_expression, location) @newline = false @expression = expression @keyword_loc = keyword_loc @rescue_expression = rescue_expression @location = location end
def inspect(inspector = NodeInspector.new)
def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) inspector << "├── expression:\n" inspector << inspector.child_node(expression, "│ ") inspector << "├── keyword_loc: #{inspector.location(keyword_loc)}\n" inspector << "└── rescue_expression:\n" inspector << inspector.child_node(rescue_expression, " ") inspector.to_str end
def keyword
def keyword keyword_loc.slice end
def set_newline_flag(newline_marked) # :nodoc:
def set_newline_flag(newline_marked) # :nodoc: expression.set_newline_flag(newline_marked) 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 :rescue_modifier_node end