module Minjs::ECMA262::BinaryOperation

Module of typically binary operation expression.

Typically binary operation expression has two values(val, val2) and operation symbol.

Attributes

val[R]
val2[R]

Public Instance Methods

==(obj) click to toggle source

compare object

# File lib/minjs/ecma262/expression.rb, line 91
def ==(obj)
  self.class == obj.class and self.val == obj.val and self.val2 == obj.val2
end
add_paren() click to toggle source

add parenthesis if need

# File lib/minjs/ecma262/expression.rb, line 79
def add_paren
  if @val.priority > self.priority
    @val = ExpParen.new(@val)
  end
  if @val2.priority > self.priority
    @val2 = ExpParen.new(@val2)
  end

  self
end
deep_dup() click to toggle source

duplicate object @see Base#deep_dup

# File lib/minjs/ecma262/expression.rb, line 97
def deep_dup
  self.class.new(@val.deep_dup, @val2.deep_dup)
end
remove_paren() click to toggle source

remove parenthesis if possible

# File lib/minjs/ecma262/expression.rb, line 68
def remove_paren
  if @val.kind_of? ExpParen and @val.val.priority <= self.priority
    @val = @val.val if @val.remove_paren?
  end
  if @val2.kind_of? ExpParen and @val2.val.priority < self.priority
    @val2 = @val2.val
  end
  self
end
replace(from, to) click to toggle source

Replaces children object. @see Base#replace

# File lib/minjs/ecma262/expression.rb, line 103
def replace(from, to)
  if @val .eql? from
    @val = to
  elsif @val2 .eql? from
    @val2 = to
  end
end
to_js(options = {}) click to toggle source

Returns a ECMAScript string containg the representation of element. @see Base#to_js

# File lib/minjs/ecma262/expression.rb, line 121
def to_js(options = {})
  concat options, @val, sym, @val2
end
traverse(parent) { |parent, self| ... } click to toggle source

Traverses this children and itself with given block. @see Base#traverse

# File lib/minjs/ecma262/expression.rb, line 113
def traverse(parent, &block)
  @val.traverse(self, &block)
  @val2.traverse(self, &block)
  yield parent, self
end