class Unparser::AST::Walker
Controlled AST
walker walking the AST
in deeth first search with pre order
Public Class Methods
call(node, controller = TAUTOLOGY, &block)
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Call ast walker
@param [Parser::AST::Node] node
@return [self]
@api private
# File lib/unparser/ast.rb, line 175 def self.call(node, controller = TAUTOLOGY, &block) new(block, controller).call(node) self end
Public Instance Methods
call(node)
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Call walker with node
@param [Parser::AST::Node] node
@return [undefined]
@api private
# File lib/unparser/ast.rb, line 188 def call(node) return unless controller.call(node) block.call(node) node.children.each do |child| break unless child.instance_of?(Parser::AST::Node) call(child) end end