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Class: Opal::Rewriters::DotJsSyntax

Inherits:
Base
  • Object
  • Parser::AST::Processor
  • Base
  • Opal::Rewriters::DotJsSyntax
show all
Defined in:
opal/lib/opal/rewriters/dot_js_syntax.rb

Constant Summary

Constants inherited from Base

Base::DUMMY_LOCATION

Instance Attribute Summary

Attributes inherited from Base

#current_node

Instance Method Summary collapse

Methods inherited from Base

#append_to_body , #begin_with_stmts , #error , #prepend_to_body , #process , #s , s , #stmts_of

Instance Method Details

#on_send(node) ⇒ Object

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# File 'opal/lib/opal/rewriters/dot_js_syntax.rb', line 8
def on_send(node)
 recv, meth, *args = *node
 if recv && recv.type == :send
 recv_of_recv, meth_of_recv, _ = *recv
 if meth_of_recv == :JS
 case meth
 when :[]
 if args.size != 1
 error '.JS[:property] syntax supports only one argument'
 end
 property = args.first
 node = to_js_attr_call(recv_of_recv, property)
 when :[]=
 if args.size != 2
 error '.JS[:property]= syntax supports only two arguments'
 end
 property, value = *args
 node = to_js_attr_assign_call(recv_of_recv, property, value)
 else
 node = to_native_js_call(recv_of_recv, meth, args)
 end
 super(node)
 else
 super
 end
 else
 super
 end
end

#to_js_attr_assign_call(recv, property, value) ⇒ Object

Parameters:

  • recv (AST::Node )

    receiver of .JS[]= method

  • property (AST::Node )

    property passed to brackets

  • value (AST::Node )

    value of assignment

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# File 'opal/lib/opal/rewriters/dot_js_syntax.rb', line 56
def to_js_attr_assign_call(recv, property, value)
 s(:jsattrasgn, recv, property, value)
end

#to_js_attr_call(recv, property) ⇒ Object

Parameters:

  • recv (AST::Node )

    receiver of .JS[] method

  • property (AST::Node )

    argument passed to .JS[] method

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# File 'opal/lib/opal/rewriters/dot_js_syntax.rb', line 49
def to_js_attr_call(recv, property)
 s(:jsattr, recv, property)
end

#to_native_js_call(recv, meth, args) ⇒ Object

Parameters:

  • recv (AST::Node )

    receiver of .JS. method

  • meth (Symbol)

    name of the JS method

  • args (Array<AST::Node >)

    list of the arguments passed to JS method

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# File 'opal/lib/opal/rewriters/dot_js_syntax.rb', line 43
def to_native_js_call(recv, meth, args)
 s(:jscall, recv, meth, *args)
end

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