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Versions: 7
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Contents
# frozen_string_literal: true
require 'opal/rewriters/base'
module Opal
module Rewriters
class DotJsSyntax < Base
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
raise SyntaxError, ".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
raise SyntaxError, '.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
# @param recv [AST::Node] receiver of .JS. method
# @param meth [Symbol] name of the JS method
# @param args [Array<AST::Node>] list of the arguments passed to JS method
def to_native_js_call(recv, meth, args)
s(:jscall, recv, meth, *args)
end
# @param recv [AST::Node] receiver of .JS[] method
# @param property [AST::Node] argument passed to .JS[] method
def to_js_attr_call(recv, property)
s(:jsattr, recv, property)
end
# @param recv [AST::Node] receiver of .JS[]= method
# @param property [AST::Node] property passed to brackets
# @param value [AST::Node] value of assignment
def to_js_attr_assign_call(recv, property, value)
s(:jsattrasgn, recv, property, value)
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems