I have several issues/questions regarding the usage of {/} in properties.
In QML by Qt I often use something like this (in a more complex way) to assign values to properties:

property int test: { if (a) { return 1; } else { return 2; } } 

I know this particular case is possible with something like this

property int test: a ? 1 : 2 

but for more complex cases the first option is needed.

My second issue is when trying to declare a js-object like this:

property var test: { "a": "b" } 

it is not giving an error but when having more then one entry

property var test: { "a": "b", "c": "d" } 

I get this error:
"a": "b",
^-- Expected string or identifier as object key

Am I doing anything wrong or are both cases not really implemented yet?