Make `Allocator` object-safe by RustyYato · Pull Request #81730 · rust-lang/rust

RustyYato · 2021-02-03T22:01:50Z

This allows rust-lang/wg-allocators#83: polymorphic allocators

rust-highfive · 2021-02-03T22:01:53Z

r? @KodrAus

(rust-highfive has picked a reviewer for you, use r? to override)

RustyYato · 2021-02-03T22:15:09Z

r? @Amanieu

Amanieu · 2021-02-03T22:18:33Z

Can you add a test to ensure that Allocator is object-safe?

RustyYato · 2021-02-03T22:19:16Z

Sure

rust-log-analyzer · 2021-02-03T22:44:45Z

The job x86_64-gnu-llvm-9 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

failures:

---- [ui] ui/allocator/object-safe.rs stdout ----
normalized stderr:
error[E0433]: failed to resolve: maybe a missing crate `core`?
   |
LL | use core::alloc::Allocator;
LL | use core::alloc::Allocator;
   |     ^^^^ maybe a missing crate `core`?

error[E0405]: cannot find trait `Allocator` in this scope
   |
   |
LL | fn ensure_object_safe(_: &dyn Allocator) {}
   |
help: consider importing this trait
Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu target=x86_64-unknown-linux-gnu
   |
   |
LL | use std::alloc::Allocator;
   |

error[E0601]: `main` function not found in crate `object_safe`
   |
   |
LL | / #![feature(allocator_api)]
LL | |
LL | | use core::alloc::Allocator;
LL | |
LL | | fn ensure_object_safe(_: &dyn Allocator) {}
   | |___________________________________________^ consider adding a `main` function to `$DIR/object-safe.rs`
error: aborting due to 3 previous errors

Some errors have detailed explanations: E0405, E0433, E0601.
For more information about an error, try `rustc --explain E0405`.
For more information about an error, try `rustc --explain E0405`.



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/object-safe.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args allocator/object-safe.rs`
error: 1 errors occurred comparing output.
status: exit code: 1
status: exit code: 1
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/allocator/object-safe.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zemit-future-incompat-report" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe" "-A" "unused" "-Crpath" "-O" "-Cdebuginfo=0" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/auxiliary"
------------------------------------------

------------------------------------------
stderr:
stderr:
------------------------------------------
error[E0433]: failed to resolve: maybe a missing crate `core`?
   |
LL | use core::alloc::Allocator;
LL | use core::alloc::Allocator;
   |     ^^^^ maybe a missing crate `core`?

error[E0405]: cannot find trait `Allocator` in this scope
   |
   |
LL | fn ensure_object_safe(_: &dyn Allocator) {}
   |
help: consider importing this trait
   |
LL | use std::alloc::Allocator;
LL | use std::alloc::Allocator;
   |

error[E0601]: `main` function not found in crate `object_safe`
   |
   |
LL | / #![feature(allocator_api)]
LL | |
LL | | use core::alloc::Allocator;
LL | |
LL | | fn ensure_object_safe(_: &dyn Allocator) {}
   | |___________________________________________^ consider adding a `main` function to `/checkout/src/test/ui/allocator/object-safe.rs`
error: aborting due to 3 previous errors

Some errors have detailed explanations: E0405, E0433, E0601.
For more information about an error, try `rustc --explain E0405`.
---
test result: FAILED. 11284 passed; 1 failed; 92 ignored; 0 measured; 0 filtered out; finished in 135.42s



command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--suite" "ui" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-9/bin/FileCheck" "--nodejs" "/usr/bin/node" "--host-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python3" "--lldb-python" "/usr/bin/python3" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "9.0.0" "--llvm-components" "aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils aggressiveinstcombine all all-targets amdgpu amdgpuasmparser amdgpucodegen amdgpudesc amdgpudisassembler amdgpuinfo amdgpuutils analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter avr avrasmparser avrcodegen avrdesc avrdisassembler avrinfo binaryformat bitreader bitstreamreader bitwriter bpf bpfasmparser bpfcodegen bpfdesc bpfdisassembler bpfinfo codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfogsym debuginfomsf debuginfopdb demangle dlltooldriver engine executionengine fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interpreter ipo irreader jitlink lanai lanaiasmparser lanaicodegen lanaidesc lanaidisassembler lanaiinfo libdriver lineeditor linker lto mc mca mcdisassembler mcjit mcparser mips mipsasmparser mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmparser msp430codegen msp430desc msp430disassembler msp430info native nativecodegen nvptx nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit passes perfjitevents powerpc powerpcasmparser powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata remarks riscv riscvasmparser riscvcodegen riscvdesc riscvdisassembler riscvinfo riscvutils runtimedyld scalaropts selectiondag sparc sparcasmparser sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target textapi transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler webassemblyinfo windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info x86utils xcore xcorecodegen xcoredesc xcoredisassembler xcoreinfo xray" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"


failed to run: /checkout/obj/build/bootstrap/debug/bootstrap --stage 2 test --exclude src/tools/tidy
Build completed unsuccessfully in 0:15:01

rust-log-analyzer · 2021-02-03T22:58:02Z

The job mingw-check failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

configure: rust.channel         := nightly
configure: rust.debug-assertions := True
configure: llvm.assertions      := True
configure: dist.missing-tools   := True
configure: build.configure-args := ['--enable-sccache', '--disable-manage-submodu ...
configure: writing `config.toml` in current directory
configure: 
configure: run `python /checkout/x.py --help`
configure: 
---
Checking which error codes lack tests...
Found 436 error codes
Found 0 error codes with no tests
Done!
tidy error: /checkout/src/test/ui/allocator/object-safe.rs: missing trailing newline
some tidy checks failed

command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/tidy" "/checkout" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "/checkout/obj/build"
expected success, got: exit code: 1

rust-log-analyzer · 2021-02-04T00:18:52Z

The job x86_64-gnu-llvm-9 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

failures:

---- [ui] ui/allocator/object-safe.rs stdout ----
normalized stderr:
error: language item required, but not found: `eh_personality`

error: `#[panic_handler]` function required, but not found
error: aborting due to 2 previous errors





The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/object-safe.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args allocator/object-safe.rs`
error: 1 errors occurred comparing output.
status: exit code: 1
status: exit code: 1
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/allocator/object-safe.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zemit-future-incompat-report" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe" "-A" "unused" "-Crpath" "-O" "-Cdebuginfo=0" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/auxiliary"
------------------------------------------

------------------------------------------
stderr:
stderr:
------------------------------------------
error: language item required, but not found: `eh_personality`

error: `#[panic_handler]` function required, but not found
error: aborting due to 2 previous errors


------------------------------------------
---

Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu target=x86_64-unknown-linux-gnu


command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--suite" "ui" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-9/bin/FileCheck" "--nodejs" "/usr/bin/node" "--host-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python3" "--lldb-python" "/usr/bin/python3" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "9.0.0" "--llvm-components" "aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils aggressiveinstcombine all all-targets amdgpu amdgpuasmparser amdgpucodegen amdgpudesc amdgpudisassembler amdgpuinfo amdgpuutils analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter avr avrasmparser avrcodegen avrdesc avrdisassembler avrinfo binaryformat bitreader bitstreamreader bitwriter bpf bpfasmparser bpfcodegen bpfdesc bpfdisassembler bpfinfo codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfogsym debuginfomsf debuginfopdb demangle dlltooldriver engine executionengine fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interpreter ipo irreader jitlink lanai lanaiasmparser lanaicodegen lanaidesc lanaidisassembler lanaiinfo libdriver lineeditor linker lto mc mca mcdisassembler mcjit mcparser mips mipsasmparser mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmparser msp430codegen msp430desc msp430disassembler msp430info native nativecodegen nvptx nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit passes perfjitevents powerpc powerpcasmparser powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata remarks riscv riscvasmparser riscvcodegen riscvdesc riscvdisassembler riscvinfo riscvutils runtimedyld scalaropts selectiondag sparc sparcasmparser sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target textapi transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler webassemblyinfo windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info x86utils xcore xcorecodegen xcoredesc xcoredisassembler xcoreinfo xray" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"


failed to run: /checkout/obj/build/bootstrap/debug/bootstrap --stage 2 test --exclude src/tools/tidy
Build completed unsuccessfully in 0:15:22

rust-log-analyzer · 2021-02-04T01:01:18Z

The job x86_64-gnu-llvm-9 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

failures:

---- [ui] ui/allocator/object-safe.rs stdout ----
normalized stderr:
warning: function is never used: `ensure_object_safe`
Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu target=x86_64-unknown-linux-gnu
   |
   |
LL | fn ensure_object_safe(_: &dyn Allocator) {}
   |
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted
warning: 1 warning emitted




The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/object-safe.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args allocator/object-safe.rs`
error: 1 errors occurred comparing output.
status: exit code: 0
status: exit code: 0
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/allocator/object-safe.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zemit-future-incompat-report" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/a" "-Crpath" "-O" "-Cdebuginfo=0" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator/object-safe/auxiliary"
------------------------------------------

------------------------------------------
stderr:
stderr:
------------------------------------------
warning: function is never used: `ensure_object_safe`
   |
   |
LL | fn ensure_object_safe(_: &dyn Allocator) {}
   |
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted
---
test result: FAILED. 11285 passed; 1 failed; 92 ignored; 0 measured; 0 filtered out; finished in 140.66s



command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--suite" "ui" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-9/bin/FileCheck" "--nodejs" "/usr/bin/node" "--host-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python3" "--lldb-python" "/usr/bin/python3" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "9.0.0" "--llvm-components" "aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils aggressiveinstcombine all all-targets amdgpu amdgpuasmparser amdgpucodegen amdgpudesc amdgpudisassembler amdgpuinfo amdgpuutils analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter avr avrasmparser avrcodegen avrdesc avrdisassembler avrinfo binaryformat bitreader bitstreamreader bitwriter bpf bpfasmparser bpfcodegen bpfdesc bpfdisassembler bpfinfo codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfogsym debuginfomsf debuginfopdb demangle dlltooldriver engine executionengine fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interpreter ipo irreader jitlink lanai lanaiasmparser lanaicodegen lanaidesc lanaidisassembler lanaiinfo libdriver lineeditor linker lto mc mca mcdisassembler mcjit mcparser mips mipsasmparser mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmparser msp430codegen msp430desc msp430disassembler msp430info native nativecodegen nvptx nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit passes perfjitevents powerpc powerpcasmparser powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata remarks riscv riscvasmparser riscvcodegen riscvdesc riscvdisassembler riscvinfo riscvutils runtimedyld scalaropts selectiondag sparc sparcasmparser sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target textapi transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler webassemblyinfo windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info x86utils xcore xcorecodegen xcoredesc xcoredisassembler xcoreinfo xray" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"


failed to run: /checkout/obj/build/bootstrap/debug/bootstrap --stage 2 test --exclude src/tools/tidy
Build completed unsuccessfully in 0:16:15

RustyYato · 2021-02-04T01:44:44Z

@Amanieu All tests are passing, I'll squash all commits and then this should be good to go

add test to ensure object-safety This allows for runtime polymorphic allocators

Amanieu · 2021-02-04T05:59:35Z

@bors r+

bors · 2021-02-04T05:59:36Z

📌 Commit d06384a has been approved by Amanieu

…Amanieu Make `Allocator` object-safe This allows rust-lang/wg-allocators#83: polymorphic allocators

Rollup of 15 pull requests Successful merges: - rust-lang#79554 (Generic associated types in trait paths) - rust-lang#80726 (relax adt unsizing requirements) - rust-lang#81307 (Handle `Span`s for byte and raw strings and add more detail ) - rust-lang#81318 (rustdoc-json: Fix has_body) - rust-lang#81456 (Make remote-test-server easier to use with new targets) - rust-lang#81497 (rustdoc: Move `display_fn` struct inside `display_fn`) - rust-lang#81500 (Remove struct_type from union output) - rust-lang#81542 (Expose correct symlink API on WASI) - rust-lang#81676 (Add more information to the error code for 'crate not found') - rust-lang#81682 (Add additional bitset benchmarks) - rust-lang#81730 (Make `Allocator` object-safe) - rust-lang#81763 (Cleanup rustdoc pass descriptions a bit) - rust-lang#81767 (Update LayoutError/LayoutErr stability attributes) - rust-lang#81771 (Indicate change in RSS from start to end of pass in time-passes output) - rust-lang#81781 (Fix `install-awscli.sh` error in CI) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup

rust-highfive assigned KodrAus Feb 3, 2021

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 3, 2021

rust-highfive assigned Amanieu and unassigned KodrAus Feb 3, 2021

RustyYato force-pushed the object-safe-allocator branch from 2999019 to 43e6961 Compare February 3, 2021 22:47

make Allocator object-safe

d06384a

add test to ensure object-safety This allows for runtime polymorphic allocators

RustyYato force-pushed the object-safe-allocator branch from a0e44b0 to d06384a Compare February 4, 2021 01:47

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 4, 2021

m-ou-se added a commit to m-ou-se/rust that referenced this pull request Feb 5, 2021

Rollup merge of rust-lang#81730 - RustyYato:object-safe-allocator, r=…

becf861

…Amanieu Make `Allocator` object-safe This allows rust-lang/wg-allocators#83: polymorphic allocators

This was referenced Feb 5, 2021

Rollup of 14 pull requests #81780

Closed

Rollup of 15 pull requests #81784

Merged

bors merged commit ff3c85f into rust-lang:master Feb 5, 2021

rustbot added this to the 1.51.0 milestone Feb 5, 2021

RustyYato deleted the object-safe-allocator branch February 5, 2021 16:35

RustyYato mentioned this pull request Feb 5, 2021

Runtime allocators rust-lang/wg-allocators#83

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Make `Allocator` object-safe#81730

Make `Allocator` object-safe#81730
bors merged 1 commit intorust-lang:masterfrom
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