It just seemed that the callers all had function body instances.
On May 23, 2014 10:21 AM, "Erik Arvidsson" <notifications@github.com> wrote:

> In src/codegeneration/ArrowFunctionTransformer.js:
>
> >    createParenExpression,
> >    createReturnStatement
> >  } from './ParseTreeFactory';
> >
> > +function convertConciseBody(tree) {
> > +  if (tree.type !== FUNCTION_BODY)
>
> the tree is either a FunctionBody or an expression.
>
> (x) => x + 1
>
> or
>
> (x) => { return x + 1 }
>
> —
> Reply to this email directly or view it on GitHub<https://github.com/google/traceur-compiler/pull/1037/files#r13009347>
> .
>