Class: Synvert::Core::NodeQuery::Compiler::BasicSelector

Inherits:

Object

• Object
• Synvert::Core::NodeQuery::Compiler::BasicSelector

Defined in:

lib/synvert/core/node_query/compiler/basic_selector.rb

Overview

BasicSelector used to match nodes, it combines by node type and/or attribute list.

Instance Method Summary

• #initialize(node_type:, attribute_list: nil) ⇒ BasicSelector constructor

  Initialize a BasicSelector.

• #match?(node, _operator = '==') ⇒ Boolean

  Check if node matches the selector.

• #to_s ⇒ Object

Constructor Details

#initialize(node_type:, attribute_list: nil) ⇒ BasicSelector

Initialize a BasicSelector.

Parameters:

• node_type (String) —

  the node type

• attribute_list (Synvert::Core::NodeQuery::Compiler::AttributeList) (defaults to: nil) —

  the attribute list

# File 'lib/synvert/core/node_query/compiler/basic_selector.rb', line 9

def initialize(node_type:, attribute_list: nil)
  @node_type = node_type
  @attribute_list = attribute_list
end

Instance Method Details

#match?(node, _operator = '==') ⇒ Boolean

Check if node matches the selector.

Parameters:

• node (Parser::AST::Node) —

  the node

Returns:

• (Boolean)

# File 'lib/synvert/core/node_query/compiler/basic_selector.rb', line 16

def match?(node, _operator = '==')
  return false unless node

  @node_type.to_sym == node.type && (!@attribute_list || @attribute_list.match?(node))
end

#to_s ⇒ Object

# File 'lib/synvert/core/node_query/compiler/basic_selector.rb', line 22

def to_s
  result = [".#{@node_type}"]
  result << @attribute_list.to_s if @attribute_list
  result.join('')
end