Class: Parser::StaticEnvironment

Inherits:
Object
  • Object
show all
Defined in:
lib/parser/static_environment.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StaticEnvironment

Returns a new instance of StaticEnvironment.



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# File 'lib/parser/static_environment.rb', line 4

def initialize
  reset
end

Instance Method Details

#declare(name) ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 33

def declare(name)
  @variables.add(name.to_sym)

  self
end

#declared?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 39

def declared?(name)
  @variables.include?(name.to_sym)
end

#extend_dynamic ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 20

def extend_dynamic
  @stack.push(@variables)
  @variables = @variables.dup

  self
end

#extend_static ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 13

def extend_static
  @stack.push(@variables)
  @variables = Set[]

  self
end

#reset ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 8

def reset
  @variables = Set[]
  @stack     = []
end

#unextend ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 27

def unextend
  @variables = @stack.pop

  self
end