Sha256: 69d1e6f82031288ed76737dfdad79dd14c792a0b416a827c4b8af3baa086e378
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Size: 1.36 KB
Versions: 6
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Stored size: 1.36 KB
Contents
# frozen_string_literal: true
module RubyNext
module Language
module Rewriters
using RubyNext
# Separate pattern matching rewriter for Ruby <3.2 to
# transpile patterns with variable (instance, class, global) binding
class BindVarsPattern < PatternMatching
NAME = "pattern-matching-find-pattern"
SYNTAX_PROBE = "case 0; in @a; true; else; 1; end"
MIN_SUPPORTED_VERSION = Gem::Version.new(RubyNext::NEXT_VERSION)
def on_case_match(node)
@has_vars_pattern = false
process_regular_node(node).then do |new_node|
return new_node unless has_vars_pattern
super(node)
end
end
def on_match_pattern(node)
@has_vars_pattern = false
process_regular_node(node).then do |new_node|
return new_node unless has_vars_pattern
super(node)
end
end
def on_match_pattern_p(node)
@has_vars_pattern = false
process_regular_node(node).then do |new_node|
return new_node unless has_vars_pattern
super(node)
end
end
def on_match_var(node)
@has_vars_pattern = true if node.children[0].is_a?(::Parser::AST::Node)
super(node)
end
private
attr_reader :has_vars_pattern
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems