Class: SyntaxTree::Translation::Parser

Inherits:
BasicVisitor show all
Defined in:
lib/syntax_tree/translation/parser.rb

Overview

This visitor is responsible for converting the syntax tree produced by Syntax Tree into the syntax tree produced by the whitequark/parser gem.

Direct Known Subclasses

RuboCopAST

Defined Under Namespace

Classes: HeredocBuilder

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from BasicVisitor

valid_visit_methods, #visit_all, #visit_child_nodes, visit_method, visit_methods

Constructor Details

#initialize(buffer) ⇒ Parser

Returns a new instance of Parser.



77
78
79
80
 
# File 'lib/syntax_tree/translation/parser.rb', line 77

def initialize(buffer)
  @buffer = buffer
  @stack = []
end

Instance Attribute Details

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



75
76
77
 
# File 'lib/syntax_tree/translation/parser.rb', line 75

def buffer
  @buffer
end

#stack ⇒ Object (readonly)

Returns the value of attribute stack.



75
76
77
 
# File 'lib/syntax_tree/translation/parser.rb', line 75

def stack
  @stack
end

Instance Method Details

#visit(node) ⇒ Object

For each node that we visit, we keep track of it in a stack as we descend into its children. We do this so that child nodes can reflect on their parents if they need additional information about their context.



85
86
87
88
89
90
 
# File 'lib/syntax_tree/translation/parser.rb', line 85

def visit(node)
  stack << node
  result = super
  stack.pop
  result
end