Class: Parser::StaticEnvironment

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

Constant Summary collapse

FORWARD_ARGS = 
:FORWARD_ARGS
ANONYMOUS_RESTARG_IN_CURRENT_SCOPE = 
:ANONYMOUS_RESTARG_IN_CURRENT_SCOPE
ANONYMOUS_RESTARG_INHERITED = 
:ANONYMOUS_RESTARG_INHERITED
ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE = 
:ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE
ANONYMOUS_KWRESTARG_INHERITED = 
:ANONYMOUS_KWRESTARG_INHERITED
ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE = 
:ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE
ANONYMOUS_BLOCKARG_INHERITED = 
:ANONYMOUS_BLOCKARG_INHERITED

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 17

def initialize
  reset
end

Instance Method Details

#declare(name) ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 55

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

  self
end

#declare_anonymous_blockarg ⇒ Object

Anonymous blockarg



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# File 'lib/parser/static_environment.rb', line 77

def declare_anonymous_blockarg
  declare(ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE)
end

#declare_anonymous_kwrestarg ⇒ Object

Anonymous kwresarg



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# File 'lib/parser/static_environment.rb', line 113

def declare_anonymous_kwrestarg
  declare(ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE)
end

#declare_anonymous_restarg ⇒ Object

Anonymous restarg



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# File 'lib/parser/static_environment.rb', line 95

def declare_anonymous_restarg
  declare(ANONYMOUS_RESTARG_IN_CURRENT_SCOPE)
end

#declare_forward_args ⇒ Object

Forward args



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# File 'lib/parser/static_environment.rb', line 67

def declare_forward_args
  declare(FORWARD_ARGS)
end

#declared?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 61

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

#declared_anonymous_blockarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 81

def declared_anonymous_blockarg?
  declared?(ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE) || declared?(ANONYMOUS_BLOCKARG_INHERITED)
end

#declared_anonymous_blockarg_in_current_scpe? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 85

def declared_anonymous_blockarg_in_current_scpe?
  declared?(ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE)
end

#declared_anonymous_kwrestarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 117

def declared_anonymous_kwrestarg?
  declared?(ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE) || declared?(ANONYMOUS_KWRESTARG_INHERITED)
end

#declared_anonymous_kwrestarg_in_current_scope? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 121

def declared_anonymous_kwrestarg_in_current_scope?
  declared?(ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE)
end

#declared_anonymous_restarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 99

def declared_anonymous_restarg?
  declared?(ANONYMOUS_RESTARG_IN_CURRENT_SCOPE) || declared?(ANONYMOUS_RESTARG_INHERITED)
end

#declared_anonymous_restarg_in_current_scope? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 103

def declared_anonymous_restarg_in_current_scope?
  declared?(ANONYMOUS_RESTARG_IN_CURRENT_SCOPE)
end

#declared_forward_args? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 71

def declared_forward_args?
  declared?(FORWARD_ARGS)
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 129

def empty?
  @stack.empty?
end

#extend_dynamic ⇒ Object 



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

def extend_dynamic
  @stack.push(@variables)
  @variables = @variables.dup
  if @variables.delete(ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE)
    @variables.add(ANONYMOUS_BLOCKARG_INHERITED)
  end
  if @variables.delete(ANONYMOUS_RESTARG_IN_CURRENT_SCOPE)
    @variables.add(ANONYMOUS_RESTARG_INHERITED)
  end
  if @variables.delete(ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE)
    @variables.add(ANONYMOUS_KWRESTARG_INHERITED)
  end

  self
end

#extend_static ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 26

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

  self
end

#parent_has_anonymous_blockarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 89

def parent_has_anonymous_blockarg?
  @stack.any? { |variables| variables.include?(ANONYMOUS_BLOCKARG_IN_CURRENT_SCOPE) }
end

#parent_has_anonymous_kwrestarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 125

def parent_has_anonymous_kwrestarg?
  @stack.any? { |variables| variables.include?(ANONYMOUS_KWRESTARG_IN_CURRENT_SCOPE) }
end

#parent_has_anonymous_restarg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/static_environment.rb', line 107

def parent_has_anonymous_restarg?
  @stack.any? { |variables| variables.include?(ANONYMOUS_RESTARG_IN_CURRENT_SCOPE) }
end

#reset ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 21

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

#unextend ⇒ Object 



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# File 'lib/parser/static_environment.rb', line 49

def unextend
  @variables = @stack.pop

  self
end