Class: Minjs::ECMA262::ExpPreDec

Inherits:

Expression

• Object
• Base
• Expression
• Minjs::ECMA262::ExpPreDec

Includes:

UnaryOperation

Defined in:

lib/minjs/ecma262/expression.rb

Overview

Class of the Prefix Decrement operator expression element.

See Also:

• ECMA262 11.4

Instance Attribute Summary

Attributes included from UnaryOperation

#val

Attributes inherited from Base

#parent

Instance Method Summary

• #ecma262_typeof ⇒ Symbol

  return results of ‘typeof’ operator.

• #initialize(val) ⇒ ExpPreDec constructor

  A new instance of ExpPreDec.

• #priority ⇒ Fixnum

  Expression priority.

• #sym ⇒ Object

  symbol of expression.

Methods included from UnaryOperation

#==, #add_paren, #deep_dup, #remove_paren, #replace, #side_effect?, #to_js, #traverse

Methods inherited from Expression

#left_hand_side_exp?, #reduce, #side_effect?

Methods inherited from Base

#==, #add_remove_paren, #concat, #deep_dup, #replace, #to_js, #traverse

Constructor Details

#initialize(val) ⇒ ExpPreDec

Returns a new instance of ExpPreDec.

# File 'lib/minjs/ecma262/expression.rb', line 946

def initialize(val)
  @val = val
end

Instance Method Details

#ecma262_typeof ⇒ Symbol

return results of ‘typeof’ operator.

Returns:

• (Symbol) —

  :number

# File 'lib/minjs/ecma262/expression.rb', line 963

def ecma262_typeof
  :number
end

#priority ⇒ Fixnum

Returns expression priority.

Returns:

• (Fixnum) —

  expression priority

# File 'lib/minjs/ecma262/expression.rb', line 956

def priority
  PRIORITY_UNARY
end

#sym ⇒ Object

symbol of expression

# File 'lib/minjs/ecma262/expression.rb', line 951

def sym
  "--"
end