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This is a PoC of the
unwrap!
macro discussed in #161, to see how well it works.Seems to work great, line numbers are printed correctly. The only drawback is the syntax is less nicer than the normal
unwrap()
since it doesn't read left-to-right.Ignore the
Escape braces in assert expressions.
commit, it's included so the unwrap macro can use theescape_expr
function.