f1542a6a7d
When converting check_loans to use ExprUseVisitor I encountered a few issues where the wrong number of errors were being emitted for multiple closure captures, but there is no existing test for this.
65 lines
1.7 KiB
Rust
65 lines
1.7 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::task;
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fn borrow<T>(_: &T) { }
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fn different_vars_after_borrows() {
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let x1 = box 1;
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let p1 = &x1;
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let x2 = box 2;
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let p2 = &x2;
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task::spawn(proc() {
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drop(x1); //~ ERROR cannot move `x1` into closure because it is borrowed
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drop(x2); //~ ERROR cannot move `x2` into closure because it is borrowed
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});
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borrow(&*p1);
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borrow(&*p2);
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}
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fn different_vars_after_moves() {
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let x1 = box 1;
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drop(x1);
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let x2 = box 2;
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drop(x2);
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task::spawn(proc() {
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drop(x1); //~ ERROR capture of moved value: `x1`
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drop(x2); //~ ERROR capture of moved value: `x2`
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});
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}
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fn same_var_after_borrow() {
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let x = box 1;
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let p = &x;
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task::spawn(proc() {
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drop(x); //~ ERROR cannot move `x` into closure because it is borrowed
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drop(x); //~ ERROR use of moved value: `x`
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});
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borrow(&*p);
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}
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fn same_var_after_move() {
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let x = box 1;
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drop(x);
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task::spawn(proc() {
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drop(x); //~ ERROR capture of moved value: `x`
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drop(x); //~ ERROR use of moved value: `x`
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});
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}
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fn main() {
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different_vars_after_borrows();
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different_vars_after_moves();
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same_var_after_borrow();
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same_var_after_move();
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}
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