Current File : //opt/alt/ruby33/share/ruby/prism/node_ext.rb
# frozen_string_literal: true
# Here we are reopening the prism module to provide methods on nodes that aren't
# templated and are meant as convenience methods.
module Prism
module RegularExpressionOptions # :nodoc:
# Returns a numeric value that represents the flags that were used to create
# the regular expression.
def options
o = flags & (RegularExpressionFlags::IGNORE_CASE | RegularExpressionFlags::EXTENDED | RegularExpressionFlags::MULTI_LINE)
o |= Regexp::FIXEDENCODING if flags.anybits?(RegularExpressionFlags::EUC_JP | RegularExpressionFlags::WINDOWS_31J | RegularExpressionFlags::UTF_8)
o |= Regexp::NOENCODING if flags.anybits?(RegularExpressionFlags::ASCII_8BIT)
o
end
end
class InterpolatedMatchLastLineNode < Node
include RegularExpressionOptions
end
class InterpolatedRegularExpressionNode < Node
include RegularExpressionOptions
end
class MatchLastLineNode < Node
include RegularExpressionOptions
end
class RegularExpressionNode < Node
include RegularExpressionOptions
end
private_constant :RegularExpressionOptions
module HeredocQuery # :nodoc:
# Returns true if this node was represented as a heredoc in the source code.
def heredoc?
opening&.start_with?("<<")
end
end
class InterpolatedStringNode < Node
include HeredocQuery
end
class InterpolatedXStringNode < Node
include HeredocQuery
end
class StringNode < Node
include HeredocQuery
end
class XStringNode < Node
include HeredocQuery
end
private_constant :HeredocQuery
class FloatNode < Node
# Returns the value of the node as a Ruby Float.
def value
Float(slice)
end
end
class ImaginaryNode < Node
# Returns the value of the node as a Ruby Complex.
def value
Complex(0, numeric.value)
end
end
class IntegerNode < Node
# Returns the value of the node as a Ruby Integer.
def value
Integer(slice)
end
end
class RationalNode < Node
# Returns the value of the node as a Ruby Rational.
def value
Rational(slice.chomp("r"))
end
end
class ConstantReadNode < Node
# Returns the list of parts for the full name of this constant.
# For example: [:Foo]
def full_name_parts
[name]
end
# Returns the full name of this constant. For example: "Foo"
def full_name
name.name
end
end
class ConstantPathNode < Node
# An error class raised when dynamic parts are found while computing a
# constant path's full name. For example:
# Foo::Bar::Baz -> does not raise because all parts of the constant path are
# simple constants
# var::Bar::Baz -> raises because the first part of the constant path is a
# local variable
class DynamicPartsInConstantPathError < StandardError; end
# Returns the list of parts for the full name of this constant path.
# For example: [:Foo, :Bar]
def full_name_parts
parts = [child.name]
current = parent
while current.is_a?(ConstantPathNode)
parts.unshift(current.child.name)
current = current.parent
end
unless current.is_a?(ConstantReadNode)
raise DynamicPartsInConstantPathError, "Constant path contains dynamic parts. Cannot compute full name"
end
parts.unshift(current&.name || :"")
end
# Returns the full name of this constant path. For example: "Foo::Bar"
def full_name
full_name_parts.join("::")
end
end
class ConstantPathTargetNode < Node
# Returns the list of parts for the full name of this constant path.
# For example: [:Foo, :Bar]
def full_name_parts
(parent&.full_name_parts || [:""]).push(child.name)
end
# Returns the full name of this constant path. For example: "Foo::Bar"
def full_name
full_name_parts.join("::")
end
end
class ParametersNode < Node
# Mirrors the Method#parameters method.
def signature
names = []
requireds.each do |param|
names << (param.is_a?(MultiTargetNode) ? [:req] : [:req, param.name])
end
optionals.each { |param| names << [:opt, param.name] }
names << [:rest, rest.name || :*] if rest
posts.each do |param|
names << (param.is_a?(MultiTargetNode) ? [:req] : [:req, param.name])
end
# Regardless of the order in which the keywords were defined, the required
# keywords always come first followed by the optional keywords.
keyopt = []
keywords.each do |param|
if param.is_a?(OptionalKeywordParameterNode)
keyopt << param
else
names << [:keyreq, param.name]
end
end
keyopt.each { |param| names << [:key, param.name] }
case keyword_rest
when ForwardingParameterNode
names.concat([[:rest, :*], [:keyrest, :**], [:block, :&]])
when KeywordRestParameterNode
names << [:keyrest, keyword_rest.name || :**]
when NoKeywordsParameterNode
names << [:nokey]
end
names << [:block, block.name || :&] if block
names
end
end
end
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