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Class: Prism::PreExecutionNode

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Node
Instance Chain:
self, Node
Inherits: Prism::Node
Defined in: lib/prism/node.rb,
prism/api_node.c

Overview

Represents the use of the BEGIN keyword.

BEGIN { foo }
^^^^^^^^^^^^^

Class Method Summary

Node - Inherited

.fields

Returns a list of the fields that exist for this node class.

.type

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.

Instance Attribute Summary

  • #statements readonly

    attr_reader statements: StatementsNode?

Node - Inherited

#newline?

Returns true if the node has the newline flag set.

#node_id

A unique identifier for this node.

#static_literal?

Returns true if the node has the static literal flag set.

#flags

An bitset of flags for this node.

#source

A pointer to the source that this node was created from.

#newline_flag?

Instance Method Summary

Node - Inherited

#accept

Accepts a visitor and calls back into the specialized visit function.

#breadth_first_search

Returns the first node that matches the given block when visited in a depth-first search.

#cached_end_code_units_column

Delegates to the cached_end_code_units_column of the associated location object.

#cached_end_code_units_offset

Delegates to the cached_end_code_units_offset of the associated location object.

#cached_start_code_units_column

Delegates to the cached_start_code_units_column of the associated location object.

#cached_start_code_units_offset

Delegates to the cached_start_code_units_offset of the associated location object.

#child_nodes

Returns an array of child nodes, including nils in the place of optional nodes that were not present.

#comment_targets

Returns an array of child nodes and locations that could potentially have comments attached to them.

#comments

Delegates to the comments of the associated location object.

#compact_child_nodes

Returns an array of child nodes, excluding any nils in the place of optional nodes that were not present.

#deconstruct

Alias for Node#child_nodes.

#each_child_node

With a block given, yields each child node.

#end_character_column

Delegates to the end_character_column of the associated location object.

#end_character_offset

Delegates to the end_character_offset of the associated location object.

#end_column

Delegates to the end_column of the associated location object.

#end_line

Delegates to the end_line of the associated location object.

#end_offset

The end offset of the node in the source.

#inspect

Returns a string representation of the node.

#leading_comments

Delegates to the leading_comments of the associated location object.

#location

A Location instance that represents the location of this node in the source.

#pretty_print

Similar to inspect, but respects the current level of indentation given by the pretty print object.

#save

Save this node using a saved source so that it can be retrieved later.

#save_location

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

#script_lines
#slice

Slice the location of the node from the source.

#slice_lines

Slice the location of the node from the source, starting at the beginning of the line that the location starts on, ending at the end of the line that the location ends on.

#source_lines

Returns all of the lines of the source code associated with this node.

#start_character_column

Delegates to the start_character_column of the associated location object.

#start_character_offset

Delegates to the start_character_offset of the associated location object.

#start_column

Delegates to the start_column of the associated location object.

#start_line

Delegates to the start_line of the associated location object.

#start_offset

The start offset of the node in the source.

#to_dot

Convert this node into a graphviz dot graph string.

#trailing_comments

Delegates to the trailing_comments of the associated location object.

#tunnel

Returns a list of nodes that are descendants of this node that contain the given line and column.

#type

Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform.

#deprecated, #newline_flag!

Constructor Details

.new(source, node_id, location, flags, statements, keyword_loc, opening_loc, closing_loc) ⇒ PreExecutionNode

Initialize a new PreExecutionNode node.

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15825

def initialize(source, node_id, location, flags, statements, keyword_loc, opening_loc, closing_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @statements = statements
  @keyword_loc = keyword_loc
  @opening_loc = opening_loc
  @closing_loc = closing_loc
end

Class Method Details

.type

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15946

def self.type
  :pre_execution_node
end

Instance Attribute Details

#statements (readonly)

attr_reader statements: StatementsNode?

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15879

attr_reader :statements

Instance Method Details

#===(other)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15952

def ===(other)
  other.is_a?(PreExecutionNode) &&
    (statements === other.statements) &&
    (keyword_loc.nil? == other.keyword_loc.nil?) &&
    (opening_loc.nil? == other.opening_loc.nil?) &&
    (closing_loc.nil? == other.closing_loc.nil?)
end

#accept(visitor)

def accept: (Visitor visitor) -> void

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15837

def accept(visitor)
  visitor.visit_pre_execution_node(self)
end

#child_nodes Also known as: #deconstruct

def child_nodes: () -> Array

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15842

def child_nodes
  [statements]
end

#closing

def closing: () -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15931

def closing
  closing_loc.slice
end

#closing_loc

attr_reader closing_loc: Location

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15908

def closing_loc
  location = @closing_loc
  return location if location.is_a?(Location)
  @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

#comment_targets

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15861

def comment_targets
  [*statements, keyword_loc, opening_loc, closing_loc] #: Array[Prism::node | Location]
end

#compact_child_nodes

def compact_child_nodes: () -> Array

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15854

def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << statements if statements
  compact
end

#copy(node_id: self.node_id, location: self.location, flags: self.flags, statements: self.statements, keyword_loc: self.keyword_loc, opening_loc: self.opening_loc, closing_loc: self.closing_loc)

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?statements: StatementsNode?, ?keyword_loc: Location, ?opening_loc: Location, ?closing_loc: Location) -> PreExecutionNode

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15866

def copy(node_id: self.node_id, location: self.location, flags: self.flags, statements: self.statements, keyword_loc: self.keyword_loc, opening_loc: self.opening_loc, closing_loc: self.closing_loc)
  PreExecutionNode.new(source, node_id, location, flags, statements, keyword_loc, opening_loc, closing_loc)
end

#deconstruct

Alias for #child_nodes.

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15871

alias deconstruct child_nodes

#deconstruct_keys(keys)

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, statements: StatementsNode?, keyword_loc: Location, opening_loc: Location, closing_loc: Location }

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15874

def deconstruct_keys(keys)
  { node_id: node_id, location: location, statements: statements, keyword_loc: keyword_loc, opening_loc: opening_loc, closing_loc: closing_loc }
end

#each_child_node {|statements| ... }

def each_child_node: () { (Prism::node) -> void } -> void | () -> Enumerator

Yields:

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15847

def each_child_node
  return to_enum(:each_child_node) unless block_given?

  yield statements if statements
end

#inspect

def inspect -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15936

def inspect
  InspectVisitor.compose(self)
end

#keyword

def keyword: () -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15921

def keyword
  keyword_loc.slice
end

#keyword_loc

attr_reader keyword_loc: Location

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15882

def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

#opening

def opening: () -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15926

def opening
  opening_loc.slice
end

#opening_loc

attr_reader opening_loc: Location

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15895

def opening_loc
  location = @opening_loc
  return location if location.is_a?(Location)
  @opening_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

#save_closing_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15916

def save_closing_loc(repository)
  repository.enter(node_id, :closing_loc)
end

#save_keyword_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15890

def save_keyword_loc(repository)
  repository.enter(node_id, :keyword_loc)
end

#save_opening_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15903

def save_opening_loc(repository)
  repository.enter(node_id, :opening_loc)
end

#type

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 15941

def type
  :pre_execution_node
end