mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-25 11:40:10 +01:00
Jeremy G. SiekandGeoff Romer
27fd9de5bf
* improved checking for liveness when reading and writing memory * moving some functions to be methods of State * finished moving functions into State * Update executable_semantics/interpreter/interpreter.h Co-authored-by: Geoff Romer <gromer@google.com> * moved some comments, other minor edits Co-authored-by: Geoff Romer <gromer@google.com>
22 lines
607 B
Plaintext
22 lines
607 B
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
// Test that the read from x triggers an error because x is dead.
|
|
// This test also demonstrates how by-reference free-variable capture
|
|
// is dangerous and can happen inside continuations.
|
|
|
|
fn capture() -> __Continuation {
|
|
var Int: x = 1;
|
|
__continuation k {
|
|
var Int: y = x;
|
|
}
|
|
return k;
|
|
}
|
|
|
|
fn main() -> Int {
|
|
var __Continuation: k = capture();
|
|
__run k; // error, lifetime of x is over
|
|
return 0;
|
|
}
|