24 lines
926 B
Rust
24 lines
926 B
Rust
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// xfail-test
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// FIXME: Parser doesn't distinguish expression in parentheses (as in
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// this example) from one that is not! It is somewhat of a pain to
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// fix this though there are no theoretical difficulties. We could
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// either add paren to the AST (better for pretty-print, I suppose) or
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// modify the parser to track whether the expression in question is
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// parenthesized. I did the latter once and it was a bit of pain but
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// not terribly difficult. We could also the decision as to whether
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// something is an "expression with a value" down into the
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// parse_expr() codepath, where we *know* if there are parentheses or
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// not, but we'd probably have to be a bit more careful then with
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// clearing the top-level restrction flag (which we ought to do
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// anyhow!)
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fn main() {
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let v = [1f, 2f, 3f];
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let w =
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if true { (vec::any(v) { |e| float::nonnegative(e) }) }
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else { false };
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assert w;
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}
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