2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// CONFIG
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <Block.h>
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int
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main(int argc, char *argv[])
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{
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__block int var = 0;
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void (^b)(void) = ^{ var++; };
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//sanity(b);
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b();
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printf("%s: success!\n", argv[0]);
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return 0;
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}
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#if 1
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/* replicated internal data structures: BEWARE, MAY CHANGE!!! */
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enum {
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BLOCK_REFCOUNT_MASK = (0xffff),
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BLOCK_NEEDS_FREE = (1 << 24),
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BLOCK_HAS_COPY_DISPOSE = (1 << 25),
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BLOCK_NO_COPY = (1 << 26), // interim byref: no copies allowed
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BLOCK_IS_GC = (1 << 27),
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BLOCK_IS_GLOBAL = (1 << 28),
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};
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struct byref_id {
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struct byref_id *forwarding;
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int flags;//refcount;
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int size;
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void (*byref_keep)(struct byref_id *dst, struct byref_id *src);
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void (*byref_destroy)(struct byref_id *);
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int var;
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};
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struct Block_basic2 {
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void *isa;
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int Block_flags; // int32_t
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int Block_size; // XXX should be packed into Block_flags
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void (*Block_invoke)(void *);
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void (*Block_copy)(void *dst, void *src);
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void (*Block_dispose)(void *);
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struct byref_id *ref;
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};
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void sanity(void *arg) {
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struct Block_basic2 *bb = (struct Block_basic2 *)arg;
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if ( ! (bb->Block_flags & BLOCK_HAS_COPY_DISPOSE)) {
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printf("missing copy/dispose helpers for byref data\n");
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exit(1);
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}
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struct byref_id *ref = bb->ref;
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if (ref->forwarding != ref) {
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printf("forwarding pointer should be %p but is %p\n", ref, ref->forwarding);
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exit(1);
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}
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}
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#endif
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