Class: Opal::Nodes::OpAsgn2Node

Inherits:
Base show all
Defined in:
opal/lib/opal/nodes/call_special.rb

Overview

lhs.b += rhs s(:op_asgn2, lhs, :b=, :+, rhs)

Constant Summary

Constants included from Helpers

Helpers::BASIC_IDENTIFIER_RULES, Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Helpers::ES51_RESERVED_WORD, Helpers::IMMUTABLE_PROPS

Instance Attribute Summary

Attributes inherited from Base

#compiler, #type

Instance Method Summary collapse

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, children, #children, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #helper, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #stmt, #stmt?, #unshift, #while_loop, #with_temp, #wrap

Methods included from Helpers

#current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #valid_name?, #variable

Constructor Details

This class inherits a constructor from Opal::Nodes::Base

Instance Method Details

#compile ⇒ Object 



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# File 'opal/lib/opal/nodes/call_special.rb', line 114

def compile
  case op.to_s
  when '||' then compile_or
  when '&&' then compile_and
  else compile_operator
  end
end

#compile_and ⇒ Object 



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# File 'opal/lib/opal/nodes/call_special.rb', line 132

def compile_and
  with_temp do |tmp|
    getr = s(:call, s(:js_tmp, tmp), meth, s(:arglist))
    asgn = s(:call, s(:js_tmp, tmp), mid, s(:arglist, rhs))
    andop = s(:and, getr, asgn)

    push "(#{tmp} = ", expr(lhs), ", ", expr(andop), ")"
  end
end

#compile_operator ⇒ Object 



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# File 'opal/lib/opal/nodes/call_special.rb', line 142

def compile_operator
  with_temp do |tmp|
    getr = s(:call, s(:js_tmp, tmp), meth, s(:arglist))
    oper = s(:call, getr, op, s(:arglist, rhs))
    asgn = s(:call, s(:js_tmp, tmp), mid, s(:arglist, oper))

    push "(#{tmp} = ", expr(lhs), ", ", expr(asgn), ")"
  end
end

#compile_or ⇒ Object 



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# File 'opal/lib/opal/nodes/call_special.rb', line 122

def compile_or
  with_temp do |tmp|
    getr = s(:call, s(:js_tmp, tmp), meth, s(:arglist))
    asgn = s(:call, s(:js_tmp, tmp), mid, s(:arglist, rhs))
    orop = s(:or, getr, asgn)

    push "(#{tmp} = ", expr(lhs), ", ", expr(orop), ")"
  end
end

#meth ⇒ Object 



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# File 'opal/lib/opal/nodes/call_special.rb', line 110

def meth
  mid.to_s[0..-2]
end