Strongly negative against the proposal. I believe that charisma of a language
comes from its simplicity. The proposal seems to add too many syntax rules to
ES.
btw it is not easy to implement such a syntax into practice. I'm afraid there
will be more syntax refinement, which actually make the parser to scan source
code twice (or adjust the AST afterward, but currently traceur reparse the code
when refine the destructuring assignment). I don't feel it worthwhile.
Though I am strongly negative, but there actually is such an implementation.
The REPL of node will parse {a:1} as object literal while {a:1;} as block.
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