4300d4d2fa
Conflicts: src/libcore/core.rc src/libcore/hashmap.rs src/libcore/num/f32.rs src/libcore/num/f64.rs src/libcore/num/float.rs src/libcore/num/int-template.rs src/libcore/num/num.rs src/libcore/num/strconv.rs src/libcore/num/uint-template.rs src/libcore/ops.rs src/libcore/os.rs src/libcore/prelude.rs src/libcore/rt/mod.rs src/libcore/unstable/lang.rs src/librustc/driver/session.rs src/librustc/middle/astencode.rs src/librustc/middle/borrowck/check_loans.rs src/librustc/middle/borrowck/gather_loans.rs src/librustc/middle/borrowck/loan.rs src/librustc/middle/borrowck/preserve.rs src/librustc/middle/liveness.rs src/librustc/middle/mem_categorization.rs src/librustc/middle/region.rs src/librustc/middle/trans/base.rs src/librustc/middle/trans/inline.rs src/librustc/middle/trans/reachable.rs src/librustc/middle/typeck/check/_match.rs src/librustc/middle/typeck/check/regionck.rs src/librustc/util/ppaux.rs src/libstd/arena.rs src/libstd/ebml.rs src/libstd/json.rs src/libstd/serialize.rs src/libstd/std.rc src/libsyntax/ast_map.rs src/libsyntax/parse/parser.rs src/test/compile-fail/borrowck-uniq-via-box.rs src/test/compile-fail/regions-infer-borrow-scope-within-loop.rs src/test/run-pass/borrowck-nested-calls.rs
50 lines
1.1 KiB
Rust
50 lines
1.1 KiB
Rust
// Copyright 2012 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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struct Point {
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x: int,
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y: int,
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}
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fn a() {
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let mut p = ~[1];
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// Create an immutable pointer into p's contents:
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let q: &int = &p[0];
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p[0] = 5; //~ ERROR cannot assign
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debug!("%d", *q);
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}
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fn borrow(_x: &[int], _f: &fn()) {}
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fn b() {
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// here we alias the mutable vector into an imm slice and try to
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// modify the original:
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let mut p = ~[1];
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do borrow(p) {
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p[0] = 5; //~ ERROR cannot assign to
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}
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}
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fn c() {
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// Legal because the scope of the borrow does not include the
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// modification:
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let mut p = ~[1];
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borrow(p, ||{});
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p[0] = 5;
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}
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fn main() {
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}
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