Rollup of 9 pull requests by Manishearth · Pull Request #74242 · rust-lang/rust

Manishearth · 2020-07-11T14:49:34Z

Successful merges:

Stabilize transmute in constants and statics but not const fn #72920 (Stabilize transmute in constants and statics but not const fn)
debuginfo: Mangle tuples to be natvis friendly, typedef basic types #73715 (debuginfo: Mangle tuples to be natvis friendly, typedef basic types)
Fix cross compilation of LLVM to aarch64 Windows targets #74116 (Fix cross compilation of LLVM to aarch64 Windows targets)
linker: illumos ld does not support --eh-frame-hdr #74167 (linker: illumos ld does not support --eh-frame-hdr)
Add a help to use in_band_lifetimes in nightly #74168 (Add a help to use in_band_lifetimes in nightly)
Reword incorrect self token suggestion #74197 (Reword incorrect self token suggestion)
Enforce the static symbol order. #74203 (Enforce the static symbol order.)
Minor refactor for rustc_resolve diagnostics match #74213 (Minor refactor for rustc_resolve diagnostics match)
Fix #74081 and add the test case from #74236 #74240 (Fixrustfmt no longer builds after rust-lang/rust#74073 #74081 and add the test case from ICE when printing paths in modules with non-DefId reexports (e.g. NonMacroAttr(Builtin)). #74236)

Failed merges:

- Mangles (T0, T1) as tuple<T0, T1>, possibly unblocking rust-lang#70052 "Update hashbrown to 0.8.0" - Prettifies Rust tuples similar to VS2017's std::tuple - Improves debuginfo test coverage

PDB debug information doesn't appear to be emitted for basic types. By defining u32 as a typedef for unsigned __int32 when targeting MSVC, we allow CDB and other debuggers to recognize "u32" as a type/expression. This in turn unblocks rust-lang#70052 "Update hashbrown to 0.8.0" by allowing $T1 ..= $T3 to resolve, which would otherwise fail to resolve when builtin types fail to parse.

When cross-compiling, the LLVM build system recurses to build tools that need to run on the host system. However, since we pass cmake defines to set the compiler and target, LLVM still compiles these tools for the target system, rather than the host. The tools then fail to execute during the LLVM build. This change sets defines for the tools that need to run on the host (llvm-nm, llvm-tablegen, and llvm-config), so that the LLVM build does not attempt to build them, and instead relies on the tools already built. If compiling with clang-cl, this change also adds the `--target` option to specify the target triple. MSVC compilers do not require this, since there is a separate compiler binary for cross-compilation.

As of rust-lang#73564, the --eh-frame-hdr flag is unconditionally passed to linkers on many platforms. The illumos link editor does not currently support this flag. The linker machinery in the Rust toolchain currently seems to use the (potentially cross-compiled) target to choose linker flags, rather than looking at what might be running on the build system. Disabling the flag for all illumos/Solaris targets seems like the best we can do for now without more serious surgery.

By making the proc macro abort if any symbols are out of order. The commit also changes the proc macro collect multiple errors (of order or duplicated symbols) and prints them at the end, which is useful if you have multiple errors.

Because it represents the symbol `ItemContext`, and `sym` identifiers are supposed to match the actual symbol whenever possible.

Use `matches!` instead of old `if let`

This to fixrust-lang#74081.

@RalfJung

Stabilize `transmute` in constants and statics but not const fn cc rust-lang#53605 (leaving issue open so we can add `transmute` to `const fn` later) Previous attempt: rust-lang#64011 r? @RalfJung cc @rust-lang/wg-const-eval

…manieu debuginfo: Mangle tuples to be natvis friendly, typedef basic types These changes are meant to unblock rust-lang#70052 "Update hashbrown to 0.8.0" by allowing the use of `tuple<u64, u64>` as a .natvis expression in MSVC style debuggers (MSVC, WinDbg, CDB, etc.) * f8eb81b does the actual mangling of `(u64, u64)` -> `tuple<u64, 64>` * 24a728a allows `u64` to resolve (fixing `$T1` / `$T2` when used to visualize `HashMap<u64, u64, ...>`)

Fix cross compilation of LLVM to aarch64 Windows targets When cross-compiling, the LLVM build system recurses to build tools that need to run on the host system. However, since we pass cmake defines to set the compiler and target, LLVM still compiles these tools for the target system, rather than the host. The tools then fail to execute during the LLVM build. This change sets defines for the tools that need to run on the host (llvm-nm, llvm-tablegen, and llvm-config), so that the LLVM build does not attempt to build them, and instead relies on the tools already built. If compiling with clang-cl, adds the `--target` option to specify the target triple. MSVC compilers do not require this, since there is a separate compiler binary for each cross-compilation target. Related issue: rust-lang#72881 Requires LLVM change: rust-lang/llvm-project#67

…-fix, r=petrochenkov linker: illumos ld does not support --eh-frame-hdr As of rust-lang#73564, the --eh-frame-hdr flag is unconditionally passed to linkers on many platforms. The illumos link editor does not currently support this flag. The linker machinery in the Rust toolchain currently seems to use the (potentially cross-compiled) target to choose linker flags, rather than looking at what might be running on the build system. Disabling the flag for all illumos/Solaris targets seems like the best we can do for now without more serious surgery.

…s, r=petrochenkov Add a help to use `in_band_lifetimes` in nightly Fixesrust-lang#73775

Reword incorrect `self` token suggestion

@petrochenkov

…rder, r=petrochenkov Enforce the static symbol order. By making the proc macro abort if any symbols are out of order. The commit also changes the proc macro collect multiple errors (of order or duplicated symbols) and prints them at the end, which is useful if you have multiple errors. r? @petrochenkov

Minor refactor for rustc_resolve diagnostics match Use `matches!` instead of old `if let`

Fixrust-lang#74081 and add the test case from rust-lang#74236

Manishearth · 2020-07-11T14:50:36Z

@rustbot modify labels: +rollup
@bors r+ rollup=never p=5

bors · 2020-07-11T14:50:37Z

📌 Commit cc1ecf3 has been approved by Manishearth

bors · 2020-07-11T14:51:05Z

⌛ Testing commit cc1ecf3 with merge 471e7c1af7d82626c5db0daaf04382b187b7e593...

bors · 2020-07-11T14:59:01Z

💔 Test failed - checks-actions

Manishearth · 2020-07-11T15:00:23Z

Details

2020-07-11T14:57:24.3492235Z �[0m�[0m�[1m�[32m Checking�[0m rustc_span v0.0.0 (/checkout/src/librustc_span)
2020-07-11T14:57:24.5067027Z error: Symbol `const_fn_transmute` must precede `transmute`
2020-07-11T14:57:24.5084711Z �[0m�[1m�[38;5;9merror�[0m�[0m�[1m: proc macro panicked�[0m
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2020-07-11T14:57:24.6144653Z 2020-07-11T14:57:24.6145384Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `Invalid` in module `kw`�[0m
2020-07-11T14:57:24.6146087Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:976:36�[0m
2020-07-11T14:57:24.6146831Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
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2020-07-11T14:57:24.6150025Z �[0m�[1m�[38;5;14mhelp�[0m�[0m: consider importing this unit variant�[0m
2020-07-11T14:57:24.6150581Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
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2020-07-11T14:57:24.6152268Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
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2020-07-11T14:57:24.6156636Z 2020-07-11T14:57:24.6157319Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `digits_array` in this scope�[0m
2020-07-11T14:57:24.6157879Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1317:42�[0m
2020-07-11T14:57:24.6158197Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
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2020-07-11T14:57:24.6201558Z 2020-07-11T14:57:24.6205237Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `DollarCrate` in module `kw`�[0m
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2020-07-11T14:57:24.6207139Z 2020-07-11T14:57:24.6211656Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `True` in module `kw`�[0m
2020-07-11T14:57:24.6212055Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1351:21�[0m
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2020-07-11T14:57:24.6213563Z 2020-07-11T14:57:24.6216648Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `False` in module `kw`�[0m
2020-07-11T14:57:24.6217048Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1351:41�[0m
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2020-07-11T14:57:24.6218587Z 2020-07-11T14:57:24.6222731Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `Invalid` in module `kw`�[0m
2020-07-11T14:57:24.6223139Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1356:21�[0m
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2020-07-11T14:57:24.6224138Z �[0m�[1m�[38;5;12m1356�[0m�[0m �[0m�[0m�[1m�[38;5;12m| �[0m�[0m self != kw::Invalid && self != kw::Underscore && !self.is_path_segment_keyword()�[0m
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2020-07-11T14:57:24.6224913Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
2020-07-11T14:57:24.6225287Z �[0m�[1m�[38;5;14mhelp�[0m�[0m: consider importing this unit variant�[0m
2020-07-11T14:57:24.6225604Z �[0m �[0m�[0m�[1m�[38;5;12m|�[0m
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2020-07-11T14:57:24.6227450Z 2020-07-11T14:57:24.6228864Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `Underscore` in module `kw`�[0m
2020-07-11T14:57:24.6229270Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1356:44�[0m
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2020-07-11T14:57:24.6230876Z 2020-07-11T14:57:24.6236116Z �[0m�[1m�[38;5;9merror[E0425]�[0m�[0m�[1m: cannot find value `Underscore` in module `kw`�[0m
2020-07-11T14:57:24.6236676Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1364:26�[0m
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2020-07-11T14:57:24.6241490Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1370:26�[0m
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2020-07-11T14:57:24.6247040Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1370:49�[0m
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2020-07-11T14:57:24.6252756Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1377:26�[0m
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2020-07-11T14:57:24.6258530Z �[0m �[0m�[0m�[1m�[38;5;12m--> �[0m�[0msrc/librustc_span/symbol.rs:1377:55�[0m
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2020-07-11T14:57:24.8002515Z 2020-07-11T14:57:25.1485537Z �[0m�[1m�[38;5;9merror�[0m�[0m�[1m: aborting due to 38 previous errors�[0m

MaulingMonkeyand others added 22 commits June 24, 2020 19:28

Modify type names on MSVC to make tuples .natvis compatible.
f8eb81b
- Mangles (T0, T1) as tuple<T0, T1>, possibly unblocking rust-lang#70052 "Update hashbrown to 0.8.0" - Prettifies Rust tuples similar to VS2017's std::tuple - Improves debuginfo test coverage

Reword incorrect self token suggestion
520fb92

Add a help to use in_band_lifetimes in nightly
6864546

Tweak wording
a9b6476

Enforce the static symbol order.
de3f2d1
By making the proc macro abort if any symbols are out of order. The commit also changes the proc macro collect multiple errors (of order or duplicated symbols) and prints them at the end, which is useful if you have multiple errors.

Rename sym::item_context as sym::ItemContext.
714b6ec
Because it represents the symbol `ItemContext`, and `sym` identifiers are supposed to match the actual symbol whenever possible.

Minor refactor for rustc_resolve diagnostics match
1fb0ed0
Use `matches!` instead of old `if let`

Stabilize transmute in constants and statics but not const fn
dd872be

Fix try_print_visible_def_path_recur for opt_def_id usage
b929f72
This to fixrust-lang#74081.

Add the test case mentioned inrust-lang#74236
f5de23b

Rollup merge ofrust-lang#74168- JohnTitor:help-for-in-band-lifetime…
212ce2f
…s, r=petrochenkov Add a help to use `in_band_lifetimes` in nightly Fixesrust-lang#73775

Rollup merge ofrust-lang#74197- estebank:self-sugg, r=petrochenkov
5ef9245
Reword incorrect `self` token suggestion

Rollup merge ofrust-lang#74213- pickfire:patch-1, r=jonas-schievink
d1f886d
Minor refactor for rustc_resolve diagnostics match Use `matches!` instead of old `if let`

Rollup merge ofrust-lang#74240- da-x:fix-74081, r=Manishearth
cc1ecf3
Fixrust-lang#74081 and add the test case from rust-lang#74236

rustbot added the rollup A PR which is a rollup label Jul 11, 2020

bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 11, 2020

bors removed the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 11, 2020

bors added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 11, 2020

This was referenced Jul 11, 2020
Stabilize transmute in constants and statics but not const fn #72920
Merged
Enforce the static symbol order. #74203
Merged

Manishearth closed this Jul 11, 2020

Manishearth deleted the rollup-56z07lu branch July 11, 2020 15:53

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Rollup of 9 pull requests - #74242

Rollup of 9 pull requests#74242
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