1# Copyright 2019 The Chromium Authors 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5import("//base/allocator/partition_allocator/partition_alloc.gni") 6 7# Chromium-specific asserts. External embedders _may_ elect to use these 8# features even without PA-E. 9if (!use_partition_alloc_as_malloc) { 10 # In theory, BackupRefPtr will work just fine without 11 # PartitionAlloc-Everywhere, but its scope would be limited to partitions 12 # that are invoked explicitly (not via malloc). These are only Blink 13 # partition, where we currently don't even use raw_ptr<T>. 14 assert(!enable_backup_ref_ptr_support, 15 "Chromium does not use BRP without PA-E") 16 17 # Pointer compression works only if all pointers are guaranteed to be 18 # allocated by PA (in one of its core pools, to be precise). In theory, 19 # this could be useful with partitions that are invoked explicitly. In 20 # practice, the pointers we have in mind for compression (scoped_refptr<>, 21 # unique_ptr<>) require PA-E. 22 assert(!enable_pointer_compression_support, 23 "Pointer compressions likely doesn't make sense without PA-E") 24} 25 26assert(use_allocator_shim || !use_partition_alloc_as_malloc, 27 "PartitionAlloc-Everywhere requires the allocator shim") 28