Class: RKelly::Visitors::DotVisitor

Inherits:
Visitor
  • Object
show all
Defined in:
lib/rkelly/visitors/dot_visitor.rb

Defined Under Namespace

Classes: Arrow, Node

Constant Summary

Constants inherited from Visitor

Visitor::ALL_NODES, Visitor::ARRAY_VALUE_NODES, Visitor::BINARY_NODES, Visitor::CONDITIONAL_NODES, Visitor::FUNC_CALL_NODES, Visitor::FUNC_DECL_NODES, Visitor::NAME_VALUE_NODES, Visitor::PREFIX_POSTFIX_NODES, Visitor::SINGLE_VALUE_NODES, Visitor::TERMINAL_NODES

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Visitor

#accept

Constructor Details

#initialize ⇒ DotVisitor

Returns a new instance of DotVisitor.



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 24

def initialize
  @stack = []
  @node_index = 0
  @nodes  = []
  @arrows = []
end

Instance Attribute Details

#arrows ⇒ Object (readonly)

Returns the value of attribute arrows.



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 23

def arrows
  @arrows
end

#nodes ⇒ Object (readonly)

Returns the value of attribute nodes.



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 23

def nodes
  @nodes
end

Instance Method Details

#type ⇒ Object

Terminal nodes



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 32

%w{
  BreakNode ContinueNode EmptyStatementNode FalseNode
  NullNode NumberNode ParameterNode RegexpNode ResolveNode StringNode
  ThisNode TrueNode
}.each do |type|
  define_method(:"visit_#{type}") do |o|
    node = Node.new(@node_index += 1, [type, o.value].compact)
    add_arrow_for(node)
    @nodes << node
  end
end

#visit_BracketAccessorNode(o) ⇒ Object 



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 174

def visit_BracketAccessorNode(o)
  node = Node.new(@node_index += 1, ['BracketAccessorNode'])
  add_arrow_for(node)
  @nodes << node
  @stack.push(node)
  [:value, :accessor].each do |method|
    o.send(method) && o.send(method).accept(self)
  end
  @stack.pop
end

#visit_DotAccessorNode(o) ⇒ Object 



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 210

def visit_DotAccessorNode(o)
  node = Node.new(@node_index += 1, ['DotAccessorNode', o.accessor])
  add_arrow_for(node)
  @nodes << node
  @stack.push(node)
  [:value].each do |method|
    o.send(method) && o.send(method).accept(self)
  end
  @stack.pop
end

#visit_ForInNode(o) ⇒ Object 



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 152

def visit_ForInNode(o)
  node = Node.new(@node_index += 1, ['ForInNode'])
  add_arrow_for(node)
  @nodes << node
  @stack.push(node)
  [:left, :right, :value].each do |method|
    o.send(method) && o.send(method).accept(self)
  end
  @stack.pop
end

#visit_ForNode(o) ⇒ Object 



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 128

def visit_ForNode(o)
  node = Node.new(@node_index += 1, ['ForNode'])
  add_arrow_for(node)
  @nodes << node
  @stack.push(node)
  [:init, :test, :counter, :value].each do |method|
    o.send(method) && o.send(method).accept(self)
  end
  @stack.pop
end

#visit_TryNode(o) ⇒ Object 



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# File 'lib/rkelly/visitors/dot_visitor.rb', line 163

def visit_TryNode(o)
  node = Node.new(@node_index += 1, ['TryNode', o.catch_var || 'NULL'])
  add_arrow_for(node)
  @nodes << node
  @stack.push(node)
  [:value, :catch_block, :finally_block].each do |method|
    o.send(method) && o.send(method).accept(self)
  end
  @stack.pop
end