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wren/test/closure/close_over_function_parameter.wren
Bob Nystrom 157944aa27 Get closures working!
In the process, I had to change the grammar. There is now a strong
separation between statements and expressions. The code was just wrong
before when it popped locals at the end of a block scope because there
could be temporaries on the stack if the block was in expression
position. This fixes that.

Still need to implement closing over `this`.
2013-12-04 07:43:50 -08:00

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var f = null
fn(param) {
f = fn {
io.write(param)
}
}.call("param")
f.call // expect: param