rust/src/test/compile-fail/lambda-mutate-nested.rs

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// error-pattern:assigning to immutable alias
// Make sure that nesting a block within a lambda doesn't let us
// mutate upvars from a lambda.
fn main() {
let i = 0;
let ctr = lambda() -> int {
block() { i = i + 1; }();
ret i;
};
log_err ctr();
log_err ctr();
log_err ctr();
log_err ctr();
log_err ctr();
log_err i;
}