Initial commit of foo[bar] += baz, support

adambeynon · adambeynon · commit c72307348fb6 · 2013-10-24T15:37:38.000+01:00
diff --git a/lib/opal/cli.rb b/lib/opal/cli.rb
@@ -213,7 +213,7 @@ def prepare_eval_code
     # SOURCE
 
     def sexp
-      Opal::Grammar.new.parse(source)
+      Opal::Parser.new.parse(source)
     end
   end
 end
diff --git a/lib/opal/nodes/call_special.rb b/lib/opal/nodes/call_special.rb
@@ -66,6 +66,27 @@ def first_arg
       end
 
       def compile
+        case op.to_s
+        when '||' then compile_or
+        when '&&' then compile_and
+        else compile_operator
+        end
+      end
+
+      def compile_operator
+        with_temp do |a| # args
+          with_temp do |r| # recv
+            cur = s(:call, s(:js_tmp, r), :[], s(:arglist, s(:js_tmp, a)))
+            rhs = s(:call, cur, :+, s(:arglist, self.rhs))
+            call = s(:call, s(:js_tmp, r), :[]=, s(:arglist, s(:js_tmp, a), rhs))
+
+            push "(#{a} = ", expr(first_arg), ", #{r} = ", expr(lhs)
+            push ", ", expr(call), ")"
+          end
+        end
+      end
+
+      def compile_or
         with_temp do |a| # args
           with_temp do |r| # recv
             aref = s(:call, s(:js_tmp, r), :[], s(:arglist, s(:js_tmp, a)))
