class Prism::BeginNode

Represents a begin statement.

begin
  foo
end
^^^^^

Attributes

else_clause[R]

Represents the else clause within the begin block.

begin x; rescue y; else z; end
                   ^^^^^^

ensure_clause[R]

Represents the ensure clause within the begin block.

begin x; ensure y; end
         ^^^^^^^^

rescue_clause[R]

Represents the rescue clause within the begin block.

begin x; rescue y; end
         ^^^^^^^^

statements[R]

Represents the statements within the begin block.

begin x end
      ^

Public Class Methods

new(source, node_id, location, flags, begin_keyword_loc, statements, rescue_clause, else_clause, ensure_clause, end_keyword_loc) click to toggle source

Initialize a new BeginNode node.

# File prism/node.rb, line 1485
def initialize(source, node_id, location, flags, begin_keyword_loc, statements, rescue_clause, else_clause, ensure_clause, end_keyword_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @begin_keyword_loc = begin_keyword_loc
  @statements = statements
  @rescue_clause = rescue_clause
  @else_clause = else_clause
  @ensure_clause = ensure_clause
  @end_keyword_loc = end_keyword_loc
end

type() click to toggle source

Return a symbol representation of this node type. See ‘Node::type`.

# File prism/node.rb, line 1625
def self.type
  :begin_node
end

Public Instance Methods

===(other) click to toggle source

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.

# File prism/node.rb, line 1631
def ===(other)
  other.is_a?(BeginNode) &&
    (begin_keyword_loc.nil? == other.begin_keyword_loc.nil?) &&
    (statements === other.statements) &&
    (rescue_clause === other.rescue_clause) &&
    (else_clause === other.else_clause) &&
    (ensure_clause === other.ensure_clause) &&
    (end_keyword_loc.nil? == other.end_keyword_loc.nil?)
end

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File prism/node.rb, line 1499
def accept(visitor)
  visitor.visit_begin_node(self)
end

begin_keyword() click to toggle source

def begin_keyword: () -> String?

# File prism/node.rb, line 1605
def begin_keyword
  begin_keyword_loc&.slice
end

begin_keyword_loc() click to toggle source

Represents the location of the ‘begin` keyword.

begin x end
^^^^^

# File prism/node.rb, line 1540
def begin_keyword_loc
  location = @begin_keyword_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @begin_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

child_nodes() click to toggle source

def child_nodes: () -> Array[nil | Node]

# File prism/node.rb, line 1504
def child_nodes
  [statements, rescue_clause, else_clause, ensure_clause]
end

Also aliased as: deconstruct

comment_targets() click to toggle source

def comment_targets: () -> Array[Node | Location]

# File prism/node.rb, line 1519
def comment_targets
  [*begin_keyword_loc, *statements, *rescue_clause, *else_clause, *ensure_clause, *end_keyword_loc] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File prism/node.rb, line 1509
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << statements if statements
  compact << rescue_clause if rescue_clause
  compact << else_clause if else_clause
  compact << ensure_clause if ensure_clause
  compact
end

copy(node_id: self.node_id, location: self.location, flags: self.flags, begin_keyword_loc: self.begin_keyword_loc, statements: self.statements, rescue_clause: self.rescue_clause, else_clause: self.else_clause, ensure_clause: self.ensure_clause, end_keyword_loc: self.end_keyword_loc) click to toggle source

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?begin_keyword_loc: Location?, ?statements: StatementsNode?, ?rescue_clause: RescueNode?, ?else_clause: ElseNode?, ?ensure_clause: EnsureNode?, ?end_keyword_loc: Location?) -> BeginNode

# File prism/node.rb, line 1524
def copy(node_id: self.node_id, location: self.location, flags: self.flags, begin_keyword_loc: self.begin_keyword_loc, statements: self.statements, rescue_clause: self.rescue_clause, else_clause: self.else_clause, ensure_clause: self.ensure_clause, end_keyword_loc: self.end_keyword_loc)
  BeginNode.new(source, node_id, location, flags, begin_keyword_loc, statements, rescue_clause, else_clause, ensure_clause, end_keyword_loc)
end

deconstruct()

def deconstruct: () -> Array[nil | Node]

Alias for: child_nodes

deconstruct_keys(keys) click to toggle source

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, begin_keyword_loc: Location?, statements: StatementsNode?, rescue_clause: RescueNode?, else_clause: ElseNode?, ensure_clause: EnsureNode?, end_keyword_loc: Location? }

# File prism/node.rb, line 1532
def deconstruct_keys(keys)
  { node_id: node_id, location: location, begin_keyword_loc: begin_keyword_loc, statements: statements, rescue_clause: rescue_clause, else_clause: else_clause, ensure_clause: ensure_clause, end_keyword_loc: end_keyword_loc }
end

end_keyword() click to toggle source

def end_keyword: () -> String?

# File prism/node.rb, line 1610
def end_keyword
  end_keyword_loc&.slice
end

end_keyword_loc() click to toggle source

Represents the location of the ‘end` keyword.

begin x end
        ^^^

# File prism/node.rb, line 1586
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

inspect() click to toggle source

def inspect -> String

# File prism/node.rb, line 1615
def inspect
  InspectVisitor.compose(self)
end

save_begin_keyword_loc(repository) click to toggle source

Save the begin_keyword_loc location using the given saved source so that it can be retrieved later.

# File prism/node.rb, line 1554
def save_begin_keyword_loc(repository)
  repository.enter(node_id, :begin_keyword_loc) unless @begin_keyword_loc.nil?
end

save_end_keyword_loc(repository) click to toggle source

Save the end_keyword_loc location using the given saved source so that it can be retrieved later.

# File prism/node.rb, line 1600
def save_end_keyword_loc(repository)
  repository.enter(node_id, :end_keyword_loc) unless @end_keyword_loc.nil?
end

type() click to toggle source

Return a symbol representation of this node type. See ‘Node#type`.

# File prism/node.rb, line 1620
def type
  :begin_node
end