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Size: 1.26 KB
Versions: 11
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Stored size: 1.26 KB
Contents
# frozen_string_literal: true
module RubyNext
module Language
module Rewriters
using RubyNext
# Separate pattern matching rewriter for Ruby 2.7 and 3.0 to
# transpile only ^(ivar|cvar|gvar)
class PinVarsPattern < PatternMatching
NAME = "pattern-matching-pin-vars"
SYNTAX_PROBE = "@a = 0; case 0; in ^@a; true; end"
MIN_SUPPORTED_VERSION = Gem::Version.new("3.1.0")
def on_case_match(node)
@has_pin_vars = false
process_regular_node(node).then do |new_node|
return new_node unless has_pin_vars
super(node)
end
end
def on_match_pattern(node)
@has_pin_vars = false
process_regular_node(node).then do |new_node|
return new_node unless has_pin_vars
super(node)
end
end
def on_match_pattern_p(node)
@has_pin_vars = false
process_regular_node(node).then do |new_node|
return new_node unless has_pin_vars
super(node)
end
end
def on_pin(node)
@has_pin_vars = node.children.first.type != :lvar
super(node)
end
private
attr_reader :has_pin_vars
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems