[parenscript-devel] Bug: cases where PS generates syntax errors instead of expressions

[Daniel Gackle]

(ps (create a 11 b 22)) => "{ a : 11, b : 22 };", which is illegal at
the top level because JS interprets the curly braces as statement
block delimiters. PS should probably generate "({ a : 11, b : 22 })"
instead.

Similarly, (ps (lambda () 123)) =>

"function () {
    return 123;
};"

is also illegal at the top level and should also be wrapped in parens.

Such forms obviously don't come up much in source files, but they do
in a REPL.  We're making a PS REPL (and source-level debugger) for
Emacs, which is how we ran across them.
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