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Contents
# frozen_string_literal: true
module Synvert::Core
# WithinScope finds out nodes which match nql or rules, then changes its scope to matching node.
class Rewriter::WithinScope < Rewriter::Scope
# Initialize a WithinScope.
#
# @param instance [Synvert::Core::Rewriter::Instance]
# @param nql_or_rules [String|Hash]
# @param options [Hash]
# @yield run on all matching nodes
# @raise [Synvert::Core::NodeQuery::Compiler::ParseError] if the query string is invalid.
def initialize(instance, nql_or_rules, options = {}, &block)
super(instance, &block)
@options = { including_self: true, stop_at_first_match: false, recursive: true }.merge(options)
@node_query = NodeQuery.new(nql_or_rules, adapter: instance.current_parser)
end
# Find out the matching nodes.
#
# It checks the current node and iterates all child nodes,
# then run the block code on each matching node.
def process
current_node = @instance.current_node
return unless current_node
matching_nodes = @node_query.query_nodes(current_node, @options)
@instance.process_with_node current_node do
matching_nodes.each do |matching_node|
@instance.process_with_node matching_node do
@instance.instance_eval(&@block)
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems