Class: CodeExplorer::Consts

Inherits:
Parser::AST::Processor
  • Object
show all
Includes:
AST::Sexp
Defined in:
lib/code_explorer/consts.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Consts

Returns a new instance of Consts.



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# File 'lib/code_explorer/consts.rb', line 12

def initialize
  @cb = ConstBinding.new("")
  @superclasses = {}
end

Instance Attribute Details

#cb ⇒ ConstBinding (readonly)

Returns:



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# File 'lib/code_explorer/consts.rb', line 8

def cb
  @cb
end

#superclasses ⇒ Hash{String => Array<String>} (readonly)

Returns:

  • (Hash{String => Array<String>}) 


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# File 'lib/code_explorer/consts.rb', line 10

def superclasses
  @superclasses
end

Instance Method Details

#const_name_from_sexp(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 23

def const_name_from_sexp(node)
  case node.type
  when :self
    "self"
  when :cbase
    ""
  when :const, :casgn
    parent, name, _maybe_value = *node
    if parent
      const_name_from_sexp(parent) + "::#{name}"
    else
      name.to_s
    end
  else
    raise "Unexpected #{node.type}"
  end
end

#new_scope(name, &block) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 41

def new_scope(name, &block)
  @cb = cb.open_namespace(name)
  block.call
  @cb = cb.close_namespace
end

#on_casgn(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 84

def on_casgn(node)
  name = cb.resolve_declared_const(const_name_from_sexp(node))
  cb.declare_const(name)
  #    puts "casgn #{name}"
end

#on_class(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 57

def on_class(node)
  name, parent, _body = *node
  parent ||= s(:const, s(:cbase), :Object)

  name   = cb.resolve_declared_const(const_name_from_sexp(name))
  parent = cb.resolve_used_const(const_name_from_sexp(parent))
  #    puts "class #{name} < #{parent}"

  @superclasses[name] = [parent]

  new_scope(name) do
    super
  end
end

#on_const(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 90

def on_const(node)
  name = const_name_from_sexp(node)
  fqname = cb.resolve_used_const(name)
  #    puts "CONST #{fqname}"
end

#on_module(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 47

def on_module(node)
  name, _body = *node
  name = cb.resolve_declared_const(const_name_from_sexp(name))
  #    puts "module #{name}"

  new_scope(name) do
    super
  end
end

#on_sclass(node) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 72

def on_sclass(node)
  parent, _body = *node

  parent = const_name_from_sexp(parent)
  name = "<< #{parent}" # cheating
  #    puts "class #{name}"

  new_scope(name) do
    super
  end
end

#report_modules(asts) ⇒ Object 



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# File 'lib/code_explorer/consts.rb', line 17

def report_modules(asts)
  Array(asts).each do |ast|
    process(ast)
  end
end