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18 lines
781 B
Rust
18 lines
781 B
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! Routines for handling measuring the memory usage of arbitrary DOM nodes.
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use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
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use std::os::raw::c_void;
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/// Used by codegen to include the pointer to the `MallocSizeOf` implementation of each
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/// IDL interface. This way we don't have to find the most-derived interface of DOM
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/// objects by hand in code.
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#[allow(unsafe_code)]
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pub unsafe fn malloc_size_of_including_raw_self<T: MallocSizeOf>(
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ops: &mut MallocSizeOfOps, obj: *const c_void) -> usize
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{
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ops.malloc_size_of(obj) + (*(obj as *const T)).size_of(ops)
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}
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