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4506f0d30c
Servo currently uses `heapsize`, but Stylo/Gecko use `malloc_size_of`. `malloc_size_of` is better -- it handles various cases that `heapsize` does not -- so this patch changes Servo to use `malloc_size_of`. This patch makes the following changes to the `malloc_size_of` crate. - Adds `MallocSizeOf` trait implementations for numerous types, some built-in (e.g. `VecDeque`), some external and Servo-only (e.g. `string_cache`). - Makes `enclosing_size_of_op` optional, because vanilla jemalloc doesn't support that operation. - For `HashSet`/`HashMap`, falls back to a computed estimate when `enclosing_size_of_op` isn't available. - Adds an extern "C" `malloc_size_of` function that does the actual heap measurement; this is based on the same functions from the `heapsize` crate. This patch makes the following changes elsewhere. - Converts all the uses of `heapsize` to instead use `malloc_size_of`. - Disables the "heapsize"/"heap_size" feature for the external crates that provide it. - Removes the `HeapSizeOf` implementation from `hashglobe`. - Adds `ignore` annotations to a few `Rc`/`Arc`, because `malloc_size_of` doesn't derive those types, unlike `heapsize`.
23 lines
708 B
Rust
23 lines
708 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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#![feature(proc_macro)]
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extern crate proc_macro;
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use proc_macro::{TokenStream, quote};
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use std::iter;
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#[proc_macro_attribute]
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pub fn dom_struct(args: TokenStream, input: TokenStream) -> TokenStream {
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if !args.is_empty() {
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panic!("#[dom_struct] takes no arguments");
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}
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let attributes = quote! {
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#[derive(DenyPublicFields, DomObject, JSTraceable, MallocSizeOf)]
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#[must_root]
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#[repr(C)]
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};
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iter::once(attributes).chain(iter::once(input)).collect()
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}
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