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Matthias Krüger ae92125a75 Rollup merge of #127574 - lcnr:coherence-check-supertrait, r=compiler-errors 
elaborate unknowable goals

A reimplemented version of #124532 affecting only the new solver. Always trying to prove super traits ends up causing a fatal overflow error in diesel, so we cannot land this in the old solver.

The following test currently does not pass coherence:
```rust
trait Super {}
trait Sub<T>: Super {}

trait Overlap<T> {}
impl<T, U: Sub<T>> Overlap<T> for U {}
impl<T> Overlap<T> for () {}

fn main() {}
```

We check whether `(): Sub<?t>` holds. This stalls with ambiguity as downstream crates may add an impl for `(): Sub<Local>`. However, its super trait bound `(): Super` cannot be implemented downstream, so this one is known not to hold.

By trying to prove that all the super bounds of a trait before adding a coherence unknowable candidate, this compiles. This is necessary to prevent breakage from enabling `-Znext-solver=coherence` (#121848), see tests/ui/coherence/super-traits/super-trait-knowable-2.rs for more details. The idea is that while there may be an impl of the trait itself we don't know about, if we're able to prove that a super trait is definitely not implemented, then that impl would also never apply/not be well-formed.

This approach is different from #124532 as it allows tests/ui/coherence/super-traits/super-trait-knowable-3.rs to compile. The approach in #124532 only elaborating the root obligations while this approach tries it for all unknowable trait goals.

r? `@compiler-errors`
2024-07-30 04:31:54 +02:00
..
abi
Use more accurate span for addr_of! suggestion
2024-07-18 18:39:20 +00:00
alloc-error
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
allocator
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
annotate-snippet
…
anon-params
More accurate span for anonymous argument suggestion
2024-07-18 00:19:27 +00:00
argfile
compiletest: add enable-by-default check-cfg
2024-05-04 11:30:38 +02:00
argument-suggestions
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
array-slice-vec
stabilize is_sorted
2024-07-28 03:11:54 +08:00
asm
Rollup merge of #127853 - folkertdev:naked-function-error-messages, r=bjorn3
2024-07-28 08:57:16 +02:00
associated-consts
avoid creating an Instance only to immediately disassemble it again
2024-07-18 11:58:16 +02:00
associated-inherent-types
Improve the impl and diag output of lint type_alias_bounds
2024-07-23 01:48:03 +02:00
associated-item
…
associated-type-bounds
Improve the impl and diag output of lint type_alias_bounds
2024-07-23 01:48:03 +02:00
associated-types
Remove logic to suggest clone of function output
2024-07-26 13:56:06 -04:00
async-await
Rollup merge of #128228 - slanterns:const_waker, r=dtolnay,oli-obk
2024-07-28 20:07:46 +02:00
attributes
Auto merge of #127042 - GrigorenkoPV:derivative, r=compiler-errors
2024-07-25 22:50:58 +00:00
auto-traits
Don't ICE when auto trait has assoc ty in old solver
2024-07-24 17:19:44 -04:00
autoref-autoderef
…
auxiliary
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
backtrace
fix interleaved panic output
2024-07-12 11:52:04 -04:00
bench
…
binding
Stabilize exclusive_range
2024-05-02 19:42:31 -04:00
binop
Change E0369 diagnostic give note information for foreign items.
2024-06-25 10:00:30 +08:00
blind
Accurate use rename suggestion span
2024-07-18 00:00:04 +00:00
block-result
…
borrowck
Rollup merge of #128172 - compiler-errors:non-self-arg, r=chenyukang
2024-07-25 16:48:21 +02:00
box
Mention when type parameter could be Clone
2024-04-24 22:21:15 +00:00
btreemap
Account for unops when suggesting cloning
2024-04-11 16:41:41 +00:00
builtin-superkinds
…
c-variadic
Use ordinal number in argument error
2024-07-14 13:50:09 +09:00
cast
Use ordinal number in argument error
2024-07-14 13:50:09 +09:00
cfg
When finding item gated behind a cfg flat, point at it
2024-07-12 18:52:52 +00:00
check-cfg
Auto merge of #127755 - no1wudi:master, r=michaelwoerister
2024-07-23 09:45:28 +00:00
closure_context
…
closure-expected-type
…
closures
Note closure captures when reporting deferred cast to fn ptr failed
2024-07-22 21:51:44 -04:00
cmse-nonsecure
improve error reporting
2024-07-18 14:32:10 +02:00
codegen
Add a bunch of tests for #107975
2024-07-19 23:27:42 +03:00
codemap_tests
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
coercion
Remove windows-specific copy of test
2024-06-17 10:57:52 +00:00
coherence
Rollup merge of #127574 - lcnr:coherence-check-supertrait, r=compiler-errors
2024-07-30 04:31:54 +02:00
coinduction
…
command
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
compare-method
show unit output when there is only output diff in diagnostics
2024-07-06 21:00:30 +08:00
compiletest-self-test
compiletest: properly handle revisioned run-rustfix tests
2024-04-07 17:06:15 +00:00
conditional-compilation
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
confuse-field-and-method
…
const_prop
Allow type_of to return partially non-error types if the type was already tainted
2024-05-28 11:55:20 +00:00
const-generics
Rollup merge of #126575 - fmease:update-lint-type_alias_bounds, r=compiler-errors
2024-07-26 02:20:28 -04:00
const-ptr
improve dangling/oob errors and make them more uniform
2024-07-27 21:12:54 +02:00
consts
improve dangling/oob errors and make them more uniform
2024-07-27 21:12:54 +02:00
coroutine
Explain that coroutine can be marked static
2024-07-21 22:32:29 -04:00
coverage-attr
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
crate-loading
…
cross
Provide structured suggestion for #![feature(foo)]
2024-03-18 16:08:58 +00:00
cross-crate
Closures are recursively reachable
2024-06-04 22:50:35 +02:00
custom_test_frameworks
…
cycle-trait
…
debuginfo
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
definition-reachable
…
delegation
Delegation: support coercion for target expression
2024-07-16 18:03:15 +03:00
dep-graph
…
deployment-target
Avoid a couple of unnecessary EarlyDiagCtxt uses
2024-06-22 17:06:47 +00:00
deprecation
Deprecate no-op codegen option -Cinline-threshold=...
2024-06-14 20:25:17 +02:00
deref-patterns
Move some tests
2024-04-21 15:43:43 -03:00
derived-errors
…
derives
Not lint pub structs without pub constructors if containing fields of unit, never type, PhantomData and positional ZST
2024-07-26 21:56:35 +08:00
deriving
Mark format! with must_use hint
2024-07-06 14:24:20 +02:00
dest-prop
…
destructuring-assignment
…
diagnostic_namespace
Allows #[diagnostic::do_not_recommend] to supress trait impls in suggestions as well
2024-07-11 08:14:28 +02:00
diagnostic-flags
tests: remove few ignore-stage2
2024-04-25 10:48:11 +03:00
diagnostic-width
…
did_you_mean
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
directory_ownership
…
disallowed-deconstructing
…
dollar-crate
…
drop
Use more accurate span for addr_of! suggestion
2024-07-18 18:39:20 +00:00
drop-bounds
…
dropck
Rewrite dropck
2024-07-02 02:30:38 +01:00
dst
…
duplicate
Accurate use rename suggestion span
2024-07-18 00:00:04 +00:00
dyn-drop
…
dyn-keyword
Deny gen keyword in edition_2024_compat lints
2024-04-22 11:51:50 -04:00
dyn-star
Fix test problems discovered by the revision check
2024-05-09 14:47:09 +10:00
dynamically-sized-types
…
editions
Point out exactly what obligation will fail
2024-06-13 21:47:43 -04:00
empty
More accurate suggestions when writing wrong style of enum variant literal
2024-07-18 18:20:35 +00:00
entry-point
…
enum
More accurate suggestions when writing wrong style of enum variant literal
2024-07-18 18:20:35 +00:00
enum-discriminant
…
env-macro
Move option_env! and env! tests to the env-macro directory
2024-03-17 21:59:40 +00:00
error-codes
improve dangling/oob errors and make them more uniform
2024-07-27 21:12:54 +02:00
error-emitter
tests: remove some trailing ws
2024-04-27 10:54:31 +03:00
errors
rewrite and rename issue-107094 to rmake
2024-07-22 10:12:00 -04:00
explicit
…
explicit-tail-calls
doc fixups from review
2024-07-07 18:16:38 +02:00
expr
More accurate suggestions when writing wrong style of enum variant literal
2024-07-18 18:20:35 +00:00
extern
Rollup merge of #125042 - long-long-float:suggest-move-arg-outside, r=fmease
2024-07-17 16:22:26 +02:00
extern-flag
Rollup merge of #125913 - fmease:early-lints-spruce-up-some-diags, r=Nadrieril
2024-06-11 09:14:34 +01:00
feature-gates
Stabilize offset_of_nested
2024-07-29 17:50:12 +01:00
ffi-attrs
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
fmt
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
fn
Rollup merge of #125042 - long-long-float:suggest-move-arg-outside, r=fmease
2024-07-17 16:22:26 +02:00
fn-main
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
for
Report better WF obligation leaf obligations in new solver
2024-05-16 21:08:42 -04:00
for-loop-while
Remove note about iteration count in coerce
2024-04-30 12:46:59 +05:30
foreign
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
fuel
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
fully-qualified-type
…
function-pointer
…
functional-struct-update
review comments
2024-04-12 20:57:07 +00:00
functions-closures
…
generic-associated-types
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
generic-const-items
Split part of adt_const_params into unsized_const_params
2024-07-17 11:01:29 +01:00
generics
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
half-open-range-patterns
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
hashmap
…
hello_world
…
higher-ranked
Auto merge of #127042 - GrigorenkoPV:derivative, r=compiler-errors
2024-07-25 22:50:58 +00:00
hygiene
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
illegal-sized-bound
…
impl-header-lifetime-elision
And more general error
2024-05-24 11:20:33 -04:00
impl-trait
Rollup merge of #127054 - compiler-errors:bound-ordering, r=fmease
2024-07-25 04:43:18 +02:00
implied-bounds
Auto merge of #127435 - GrigorenkoPV:tests-for-112905, r=cjgillot
2024-07-13 13:12:52 +00:00
imports
Do not use question as label
2024-07-24 21:03:27 +00:00
include-macros
diagnostics: fix crash on completely empty included file
2024-03-29 18:22:44 -07:00
incoherent-inherent-impls
Fix remaining cases
2024-06-21 19:00:18 -04:00
indexing
check index value <= 0xFFFF_FF00
2024-06-01 09:40:46 +08:00
inference
only accept adt type during infer source visitor
2024-07-29 22:29:34 +08:00
infinite
Automatically taint InferCtxt when errors are emitted
2024-06-26 16:01:45 +00:00
inherent-impls-overlap-check
…
inline-const
avoid creating an Instance only to immediately disassemble it again
2024-07-18 11:58:16 +02:00
instrument-coverage
Fix remaining cases
2024-06-21 19:00:18 -04:00
instrument-xray
…
interior-mutability
…
internal
…
internal-lints
Use the rustc_private libc less in tests
2024-04-15 08:54:11 -04:00
intrinsics
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
invalid
…
invalid-compile-flags
Add --print=check-cfg to get the expected configs
2024-04-25 07:58:31 +02:00
invalid-module-declaration
…
invalid-self-argument
…
io-checks
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
issues
Rollup merge of #127574 - lcnr:coherence-check-supertrait, r=compiler-errors
2024-07-30 04:31:54 +02:00
iterators
Gate the type length limit check behind a nightly flag
2024-07-12 21:16:09 -04:00
json
…
keyword
Do not use question as label
2024-07-24 21:03:27 +00:00
kindck
Harmonize use of leaf and root obligation in trait error reporting
2024-06-12 20:57:23 -04:00
label
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
lang-items
Let InstCombine remove Clone shims inside Clone shims
2024-07-25 15:14:42 -04:00
late-bound-lifetimes
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
layout
Rollup merge of #126152 - RalfJung:size_of_val_raw, r=saethlin
2024-07-24 18:00:35 +02:00
lazy-type-alias
LTA: Diag: Detect bivariant ty params that are only used recursively
2024-07-19 18:53:40 +02:00
lazy-type-alias-impl-trait
…
let-else
Make ; suggestions inline
2024-07-12 03:22:32 +00:00
lexer
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
lifetimes
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
limits
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
linkage-attr
unreferenced-used-static: run test everywhere
2024-06-29 13:02:59 +02:00
lint
Rollup merge of #128284 - GKFX:stabilize-offset-of-nested, r=dtolnay,jieyouxu
2024-07-29 21:26:13 +02:00
liveness
Better span for "make binding mutable" suggestion
2024-07-04 02:02:21 +00:00
loops
Fix ... in multline code-skips in suggestions
2024-06-20 04:25:17 +00:00
lowering
Change wording
2024-04-29 14:53:38 +02:00
lto
Don't output test artifacts into working directory
2024-07-21 13:45:55 -04:00
lub-glb
…
macro_backtrace
…
macros
Make missing_fragment_specifier an error in edition 2024
2024-07-27 05:33:24 -04:00
malformed
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
manual
Make more of the test suite run on Mac Catalyst
2024-05-28 12:31:33 +02:00
marker_trait_attr
Always make inductive cycles as ambig during typeck
2024-03-31 20:44:30 -04:00
match
Match ergonomics 2024: test type inference
2024-07-05 11:17:49 -04:00
meta
Handle a few more simple tests
2024-05-20 11:13:10 -04:00
methods
Rollup merge of #128239 - compiler-errors:error-on-object-cand-confirm, r=oli-obk
2024-07-29 17:46:43 +02:00
mir
Add test
2024-07-21 21:42:10 +08:00
mir-dataflow
…
mismatched_types
Rollup merge of #125042 - long-long-float:suggest-move-arg-outside, r=fmease
2024-07-17 16:22:26 +02:00
missing
…
missing_non_modrs_mod
…
missing-trait-bounds
Use fulfillment, not evaluate, during method probe
2024-04-21 20:10:12 -04:00
modules
Move tests
2024-04-07 17:38:07 -03:00
modules_and_files_visibility
…
moves
Rollup merge of #124599 - estebank:issue-41708, r=wesleywiser
2024-07-11 17:01:36 +02:00
mut
Better span for "make binding mutable" suggestion
2024-07-04 02:02:21 +00:00
namespace
Tweak output of import suggestions
2024-06-13 20:22:21 +00:00
native-library-link-flags
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
never_type
Make NEVER_TYPE_FALLBACK_FLOWING_INTO_UNSAFE deny-by-default in e2024
2024-06-28 22:23:43 +02:00
nll
Explain that coroutine can be marked static
2024-07-21 22:32:29 -04:00
no_std
…
non_modrs_mods
…
non_modrs_mods_and_inline_mods
…
not-panic
…
numbers-arithmetic
Rollup merge of #126127 - Alexendoo:other-trait-diag, r=pnkfelix
2024-06-16 03:41:57 -04:00
numeric
Tweak "field not found" suggestion when giving struct literal for tuple struct type
2024-07-18 18:20:35 +00:00
object-lifetime
make type_flags(ReError) & HAS_ERROR
2024-03-20 17:29:58 +00:00
object-safety
Rollup merge of #126090 - compiler-errors:supertrait-assoc-ty-unsoundness, r=lcnr
2024-07-26 00:57:20 +02:00
obsolete-in-place
…
offset-of
Stabilize offset_of_nested
2024-07-29 17:50:12 +01:00
on-unimplemented
Spell out other trait diagnostic
2024-06-12 12:34:47 +00:00
operator-recovery
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
or-patterns
Improve "covered_by_many" error
2024-07-24 08:46:52 +02:00
overloaded
…
packed
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
panic-handler
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
panic-runtime
Enable a few tests on macOS
2024-05-28 12:31:12 +02:00
panics
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
parallel-rustc
…
parser
Rollup merge of #128229 - tdittr:unsafe-extern-abi-error, r=compiler-errors
2024-07-26 19:03:08 -04:00
patchable-function-entry
Updated diagnostic messages
2024-06-27 22:24:36 +02:00
pattern
Improve "covered_by_many" error
2024-07-24 08:46:52 +02:00
pin-macro
…
polymorphization
Make sure that args are compatible in resolve_associated_item
2024-07-24 22:59:57 -04:00
precondition-checks
Fix revisions syntax
2024-04-11 17:53:27 -04:00
print_type_sizes
Error on using yield without also using #[coroutine] on the closure
2024-04-24 08:05:29 +00:00
privacy
Rollup merge of #126575 - fmease:update-lint-type_alias_bounds, r=compiler-errors
2024-07-26 02:20:28 -04:00
proc-macro
Improve spans on evaluated cfg_attrs.
2024-07-24 21:03:52 +10:00
process
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
process-termination
…
ptr_ops
…
pub
Rollup merge of #127656 - RalfJung:pub_use_of_private_extern_crate, r=petrochenkov
2024-07-18 18:10:15 +02:00
qualified
…
query-system
…
range
Make parse error suggestions verbose and fix spans
2024-07-12 03:02:57 +00:00
raw-ref-op
turn pointer_structural_match into a hard error
2024-05-03 15:56:59 +02:00
reachable
Explain why a given pattern is considered unreachable
2024-07-24 08:02:55 +02:00
recursion
Gate the type length limit check behind a nightly flag
2024-07-12 21:16:09 -04:00
recursion_limit
…
regions
Do not ICE when suggesting dereferencing closure arg
2024-06-24 03:39:54 +00:00
repeat-expr
Account for let foo = expr; to suggest const foo: Ty = expr;
2024-07-11 20:39:24 +00:00
repr
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
reserved
…
resolve
Rollup merge of #127557 - linyihai:issue-126694, r=compiler-errors
2024-07-26 02:20:30 -04:00
return
Use full expr span for return suggestion on type error/ambiguity
2024-06-30 23:11:54 -04:00
rfcs
Rollup merge of #127853 - folkertdev:naked-function-error-messages, r=bjorn3
2024-07-28 08:57:16 +02:00
rmeta
…
runtime
Disable stack overflow handler tests on iOS-like platforms
2024-05-28 12:31:12 +02:00
rust-2018
Tweak output of import suggestions
2024-06-13 20:22:21 +00:00
rust-2021
Detect unused structs which implement private traits
2024-05-23 09:07:59 +08:00
rust-2024
Rollup merge of #125889 - Nilstrieb:migrate-into-the-future, r=compiler-errors
2024-07-28 13:42:18 +02:00
rustc-env
note value of RUST_MIN_STACK and explain unsetting
2024-05-19 20:09:03 -07:00
rustdoc
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
sanitizer
Rollup merge of #127882 - compiler-errors:cfi-sized-self-gat, r=oli-obk
2024-07-29 17:46:42 +02:00
self
Auto merge of #117967 - adetaylor:fix-lifetime-elision-bug, r=lcnr
2024-07-18 13:33:38 +00:00
sepcomp
…
shadowed
…
shell-argfiles
compiletest: add enable-by-default check-cfg
2024-05-04 11:30:38 +02:00
simd
Do not use question as label
2024-07-24 21:03:27 +00:00
single-use-lifetime
Add test to check unused_lifetimes don't duplicate "parameter is never used" error
2024-03-09 18:24:45 +00:00
sized
remove unnecessary ignore-endian-big from stack-overflow-trait-infer test
2024-07-02 16:31:40 +02:00
span
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
specialization
Add ConstArgKind::Path and make ConstArg its own HIR node
2024-07-16 19:27:28 -07:00
stability-attribute
Migrate tests to use -Znext-solver
2024-06-30 17:08:45 +00:00
stable-mir-print
Add needs-unwind annotations to a couple of tests
2024-03-25 14:19:07 +00:00
stack-protector
…
static
Rollup merge of #125834 - workingjubilee:weaken-thir-unsafeck-for-addr-of-static-mut, r=compiler-errors
2024-07-23 13:06:54 +02:00
statics
Auto merge of #127722 - BoxyUwU:new_adt_const_params_limitations, r=compiler-errors
2024-07-21 05:36:21 +00:00
stats
Add ConstArgKind::Path and make ConstArg its own HIR node
2024-07-16 19:27:28 -07:00
std
Move various stdlib tests to library/std/tests
2024-04-28 16:10:12 -04:00
stdlib-unit-tests
Move various stdlib tests to library/std/tests
2024-04-28 16:10:12 -04:00
str
Be more accurate about calculating display_col from a BytePos
2024-07-18 20:08:38 +00:00
structs
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
structs-enums
Detect pub structs never constructed and unused associated constants in traits
2024-06-05 23:20:09 +08:00
suggestions
Fix a span error when parsing a wrong param of function.
2024-07-25 22:33:45 +08:00
svh
…
symbol-mangling-version
…
symbol-names
Split part of adt_const_params into unsized_const_params
2024-07-17 11:01:29 +01:00
sync
Add manual Sync impl for ReentrantLockGuard
2024-05-24 17:44:37 -07:00
target-feature
rustc_target: fix UI tests for s390x
2024-07-17 07:55:22 +08:00
test-attrs
Update name of Windows abort constant to match platform documentation
2024-07-15 22:21:41 +00:00
thir-print
report pat no field error no recoverd struct variant
2024-07-11 00:18:47 +08:00
thread-local
…
threads-sendsync
delete UI tests that only check internal implementation details of thread-locals
2024-05-23 13:44:56 +02:00
tool-attributes
Fix diagnostic and add a test for it
2024-07-10 18:56:06 -04:00
track-diagnostics
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
trait-bounds
Fix malformed suggestion for repeated maybe unsized bounds
2024-07-14 17:46:25 +05:30
traits
Rollup merge of #128174 - compiler-errors:trait-alias-marker, r=oli-obk
2024-07-29 17:46:42 +02:00
transmutability
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
transmute
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
treat-err-as-bug
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
trivial-bounds
Improve the impl and diag output of lint type_alias_bounds
2024-07-23 01:48:03 +02:00
try-block
Use shorter span for float literal suggestion
2024-07-04 05:19:35 +00:00
try-trait
Start using #[diagnostic::do_not_recommend] in the standard library
2024-07-22 07:29:59 +02:00
tuple
Use ordinal number in argument error
2024-07-14 13:50:09 +09:00
type
Improve the impl and diag output of lint type_alias_bounds
2024-07-23 01:48:03 +02:00
type-alias
Suggest full trait ref (with placeholders) on unresolved assoc tys
2024-07-23 01:26:25 +02:00
type-alias-enum-variants
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
type-alias-impl-trait
Do not assemble candidates for auto traits of opaque types in their defining scope
2024-07-24 16:00:48 +00:00
type-inference
Use fn ptr signature instead of {closure@..} in infer error
2024-04-10 00:41:27 +00:00
typeck
Rollup merge of #127528 - estebank:ascii-control-chars, r=oli-obk
2024-07-25 04:43:19 +02:00
typeof
Account for let foo = expr; to suggest const foo: Ty = expr;
2024-07-11 20:39:24 +00:00
ufcs
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
unboxed-closures
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
underscore-imports
Do not use question as label
2024-07-24 21:03:27 +00:00
underscore-lifetime
make type_flags(ReError) & HAS_ERROR
2024-03-20 17:29:58 +00:00
uniform-paths
…
uninhabited
Explain why a given pattern is considered unreachable
2024-07-24 08:02:55 +02:00
union
Mention when type parameter could be Clone
2024-04-24 22:21:15 +00:00
unknown-unstable-lints
…
unop
Move 100 entries from tests/ui into subdirs
2024-05-20 19:55:59 -07:00
unpretty
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
unresolved
Do not use question as label
2024-07-24 21:03:27 +00:00
unsafe
Tweak raw-pointer field access and array indexing suggestions
2024-07-04 06:06:33 +00:00
unsized
Support ?Trait bounds in supertraits and dyn Trait under a feature gate
2024-07-25 20:53:33 +03:00
unsized-locals
add issue numbers via // issue: rust-lang/rust#ISSUE_NUM directive
2024-03-24 09:34:11 +01:00
unused-crate-deps
Spruce up the diagnostics of some early lints
2024-06-03 07:25:32 +02:00
unwind-abis
Remove c_unwind from tests and fix tests
2024-06-19 13:54:55 +01:00
use
Make early lints translatable
2024-05-21 20:16:39 +00:00
variance
Remove logic to suggest clone of function output
2024-07-26 13:56:06 -04:00
variants
Accurate use rename suggestion span
2024-07-18 00:00:04 +00:00
version
Fix test problems discovered by the revision check
2024-05-09 14:47:09 +10:00
warnings
tests/ui: Add a directory for warnings, add a test
2024-03-22 11:27:34 -04:00
wasm
…
wf
Revert "sort suggestions for object diagnostic"
2024-07-18 16:51:06 -04:00
where-clauses
Taint infcx when reporting errors
2024-06-19 04:41:56 +00:00
while
…
windows-subsystem
rewrite test-harness to rmake
2024-07-02 11:37:59 -04:00
zero-sized
…
.gitattributes
…
alias-uninit-value.rs
…
allow-non-lint-warnings.rs
Make run-make/allow-non-lint-warnings-cmdline into a ui test
2024-06-13 12:55:55 +02:00
anonymous-higher-ranked-lifetime.rs
…
anonymous-higher-ranked-lifetime.stderr
Remove Partial/Ord from BoundRegion
2024-03-27 14:02:16 +00:00
artificial-block.rs
…
as-precedence.rs
…
assign-assign.rs
…
assign-imm-local-twice.rs
Better span for "make binding mutable" suggestion
2024-07-04 02:02:21 +00:00
assign-imm-local-twice.stderr
Better span for "make binding mutable" suggestion
2024-07-04 02:02:21 +00:00
assoc-lang-items.rs
…
assoc-lang-items.stderr
consistency rename: language item -> lang item
2024-04-17 13:00:43 +02:00
assoc-oddities-3.rs
…
associated-path-shl.rs
…
associated-path-shl.stderr
…
atomic-from-mut-not-available.rs
…
atomic-from-mut-not-available.stderr
…
attempted-access-non-fatal.rs
…
attempted-access-non-fatal.stderr
…
attr-bad-crate-attr.rs
…
attr-bad-crate-attr.stderr
…
attr-shebang.rs
…
attr-start.rs
…
attr-usage-inline.rs
…
attr-usage-inline.stderr
…
attrs-resolution-errors.rs
…
attrs-resolution-errors.stderr
…
attrs-resolution.rs
…
augmented-assignments-feature-gate-cross.rs
…
augmented-assignments-rpass.rs
…
augmented-assignments.rs
Account for assign binops in clone suggestions
2024-04-11 16:41:41 +00:00
augmented-assignments.stderr
Account for assign binops in clone suggestions
2024-04-11 16:41:41 +00:00
auto-instantiate.rs
…
auto-ref-slice-plus-ref.rs
…
auto-ref-slice-plus-ref.stderr
…
autoderef-full-lval.rs
…
autoderef-full-lval.stderr
Change E0369 diagnostic give note information for foreign items.
2024-06-25 10:00:30 +08:00
bare-fn-implements-fn-mut.rs
…
bare-static-string.rs
…
big-literals.rs
…
bind-by-move.rs
…
bitwise.rs
…
bogus-tag.rs
…
bogus-tag.stderr
…
borrow-by-val-method-receiver.rs
…
bounds-lifetime.rs
…
bounds-lifetime.stderr
…
break-diverging-value.rs
…
break-diverging-value.stderr
…
builtin-clone-unwind.rs
…
can-copy-pod.rs
…
cancel-clean-via-immediate-rvalue-ref.rs
…
cannot-mutate-captured-non-mut-var.rs
…
cannot-mutate-captured-non-mut-var.stderr
More accurate mutability suggestion
2024-07-04 05:36:34 +00:00
capture1.rs
…
capture1.stderr
…
catch-unwind-bang.rs
…
cenum_impl_drop_cast.rs
…
cenum_impl_drop_cast.stderr
…
cfguard-run.rs
…
char.rs
…
class-cast-to-trait.rs
…
class-cast-to-trait.stderr
…
class-method-missing.rs
…
class-method-missing.stderr
…
cleanup-rvalue-for-scope.rs
…
cleanup-rvalue-scopes-cf.rs
…
cleanup-rvalue-scopes-cf.stderr
…
cleanup-rvalue-scopes.rs
…
cleanup-rvalue-temp-during-incomplete-alloc.rs
…
cleanup-shortcircuit.rs
…
close-over-big-then-small-data.rs
…
command-line-diagnostics.rs
…
command-line-diagnostics.stderr
Better span for "make binding mutable" suggestion
2024-07-04 02:02:21 +00:00
complex.rs
…
conservative_impl_trait.rs
…
conservative_impl_trait.stderr
…
constructor-lifetime-args.rs
…
constructor-lifetime-args.stderr
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
copy-a-resource.rs
…
copy-a-resource.stderr
…
crate-leading-sep.rs
…
crate-method-reexport-grrrrrrr.rs
…
crate-name-attr-used.rs
…
crate-name-mismatch.rs
…
crate-name-mismatch.stderr
…
custom_attribute.rs
…
custom_attribute.stderr
…
custom-attribute-multisegment.rs
…
custom-attribute-multisegment.stderr
…
custom-test-frameworks-simple.rs
…
deduplicate-diagnostics.deduplicate.stderr
…
deduplicate-diagnostics.duplicate.stderr
…
deduplicate-diagnostics.rs
…
deep.rs
…
default-method-parsing.rs
…
default-method-simple.rs
…
defaults-well-formedness.rs
…
deprecation-in-force-unstable.rs
…
deref-non-pointer.rs
…
deref-non-pointer.stderr
…
deref-rc.rs
…
deref.rs
…
derive-uninhabited-enum-38885.rs
…
derive-uninhabited-enum-38885.stderr
…
destructure-trait-ref.rs
…
destructure-trait-ref.stderr
…
diverging-fallback-method-chain.rs
…
diverging-fallback-option.rs
…
diverging-fn-tail-35849.rs
…
diverging-fn-tail-35849.stderr
…
double-ref.rs
…
double-type-import.rs
…
double-type-import.stderr
…
dupe-first-attr.rs
…
duplicate_entry_error.rs
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
duplicate_entry_error.stderr
Rename std::panic::PanicInfo to PanicHookInfo.
2024-06-11 15:47:00 +02:00
early-ret-binop-add.rs
…
elide-errors-on-mismatched-tuple.rs
…
elide-errors-on-mismatched-tuple.stderr
…
elided-test.rs
…
elided-test.stderr
…
else-if.rs
…
empty-allocation-non-null.rs
…
empty-allocation-rvalue-non-null.rs
…
empty-type-parameter-list.rs
…
empty-type-parameter-list.stderr
…
error-festival.rs
…
error-festival.stderr
…
error-should-say-copy-not-pod.rs
…
error-should-say-copy-not-pod.stderr
…
exclusive-drop-and-copy.rs
…
exclusive-drop-and-copy.stderr
…
explain.rs
…
explain.stdout
…
explicit-i-suffix.rs
…
explore-issue-38412.rs
…
explore-issue-38412.stderr
…
ext-expand-inner-exprs.rs
…
ext-nonexistent.rs
…
ext-nonexistent.stderr
…
fact.rs
…
fail-simple.rs
…
fail-simple.stderr
…
filter-block-view-items.rs
Unify all the always-false cfgs under the FALSE cfg
2024-04-07 01:16:45 +02:00
format-no-std.rs
…
fun-indirect-call.rs
…
future-incompatible-lint-group.rs
…
future-incompatible-lint-group.stderr
…
global-scope.rs
…
hello.rs
…
illegal-ufcs-drop.fixed
…
illegal-ufcs-drop.rs
…
illegal-ufcs-drop.stderr
…
impl-inherent-non-conflict.rs
…
impl-not-adjacent-to-type.rs
Allow unused fields in some tests
2024-03-12 10:59:41 +01:00
impl-privacy-xc-1.rs
…
impl-unused-rps-in-assoc-type.rs
…
impl-unused-rps-in-assoc-type.stderr
…
impl-unused-tps-inherent.rs
…
impl-unused-tps-inherent.stderr
…
impl-unused-tps.rs
…
impl-unused-tps.stderr
…
implicit-method-bind.rs
…
implicit-method-bind.stderr
…
inline-disallow-on-variant.rs
…
inline-disallow-on-variant.stderr
…
inlined-main.rs
…
inner-attrs-on-impl.rs
Unify all the always-false cfgs under the FALSE cfg
2024-04-07 01:16:45 +02:00
inner-module.rs
…
inner-static-type-parameter.rs
…
inner-static-type-parameter.stderr
…
inner-static.rs
…
integral-indexing.rs
…
integral-indexing.stderr
…
integral-variable-unification-error.rs
…
integral-variable-unification-error.stderr
…
invalid_crate_type_syntax.rs
…
invalid_crate_type_syntax.stderr
…
invalid_dispatch_from_dyn_impls.rs
…
invalid_dispatch_from_dyn_impls.stderr
…
issue-11881.rs
…
issue-13560.rs
…
issue-15924.rs
…
issue-16822.rs
…
issue-18502.rs
…
issue-24106.rs
…
issue-76387-llvm-miscompile.rs
…
issues-71798.rs
…
issues-71798.stderr
…
item-name-overload.rs
…
kinds-in-metadata.rs
…
kinds-of-primitive-impl.rs
…
kinds-of-primitive-impl.stderr
…
last-use-in-block.rs
…
last-use-in-cap-clause.rs
…
last-use-is-capture.rs
…
lazy-and-or.rs
…
lexical-scopes.rs
…
lexical-scopes.stderr
…
lexical-scoping.rs
…
link-section.rs
Make more of the test suite run on Mac Catalyst
2024-05-28 12:31:33 +02:00
list.rs
…
log-err-phi.rs
…
log-knows-the-names-of-variants.rs
…
log-poly.rs
…
logging-only-prints-once.rs
…
loud_ui.rs
…
max-min-classes.rs
…
maximal_mir_to_hir_coverage.rs
…
maybe-bounds.rs
…
maybe-bounds.stderr
Support ?Trait bounds in supertraits and dyn Trait under a feature gate
2024-07-25 20:53:33 +03:00
method-output-diff-issue-127263.rs
show unit output when there is only output diff in diagnostics
2024-07-06 21:00:30 +08:00
method-output-diff-issue-127263.stderr
show unit output when there is only output diff in diagnostics
2024-07-06 21:00:30 +08:00
minus-string.rs
…
minus-string.stderr
Change E0369 diagnostic give note information for foreign items.
2024-06-25 10:00:30 +08:00
missing_debug_impls.rs
…
missing_debug_impls.stderr
…
mod-subitem-as-enum-variant.rs
…
mod-subitem-as-enum-variant.stderr
…
monomorphize-abi-alignment.rs
…
msvc-data-only.rs
…
msvc-opt-minsize.rs
rewrite test-harness to rmake
2024-07-02 11:37:59 -04:00
multibyte.rs
…
multiline-comment.rs
…
mut-function-arguments.rs
…
mutual-recursion-group.rs
…
myriad-closures.rs
…
nested-block-comment.rs
…
nested-cfg-attrs.rs
Unify all the always-false cfgs under the FALSE cfg
2024-04-07 01:16:45 +02:00
nested-cfg-attrs.stderr
…
nested-class.rs
…
nested-ty-params.rs
…
nested-ty-params.stderr
…
new-impl-syntax.rs
…
new-import-syntax.rs
…
new-style-constants.rs
…
new-unicode-escapes.rs
…
newlambdas.rs
…
newtype-polymorphic.rs
…
newtype.rs
…
no_crate_type.rs
…
no_crate_type.stderr
…
no_send-enum.rs
…
no_send-enum.stderr
…
no_send-rc.rs
…
no_send-rc.stderr
…
no_share-enum.rs
…
no_share-enum.stderr
…
no_share-struct.rs
…
no_share-struct.stderr
…
no-capture-arc.rs
…
no-capture-arc.stderr
…
no-core-1.rs
…
no-core-2.rs
…
no-link-unknown-crate.rs
…
no-link-unknown-crate.stderr
…
no-reuse-move-arc.rs
…
no-reuse-move-arc.stderr
…
no-send-res-ports.rs
…
no-send-res-ports.stderr
…
no-warn-on-field-replace-issue-34101.rs
…
noexporttypeexe.rs
…
noexporttypeexe.stderr
…
non-constant-expr-for-arr-len.rs
…
non-constant-expr-for-arr-len.stderr
…
non-copyable-void.rs
Use the rustc_private libc less in tests
2024-04-15 08:54:11 -04:00
non-copyable-void.stderr
Use the rustc_private libc less in tests
2024-04-15 08:54:11 -04:00
non-fmt-panic.fixed
…
non-fmt-panic.rs
…
non-fmt-panic.stderr
…
noncopyable-class.rs
…
noncopyable-class.stderr
…
nonscalar-cast.fixed
…
nonscalar-cast.rs
…
nonscalar-cast.stderr
…
not-clone-closure.rs
…
not-clone-closure.stderr
…
not-copy-closure.rs
…
not-copy-closure.stderr
…
not-enough-arguments.rs
…
not-enough-arguments.stderr
Use ordinal number in argument error
2024-07-14 13:50:09 +09:00
nul-characters.rs
…
nullable-pointer-iotareduction.rs
…
nullable-pointer-size.rs
…
object-pointer-types.rs
…
object-pointer-types.stderr
…
objects-coerce-freeze-borrored.rs
…
occurs-check-2.rs
…
occurs-check-2.stderr
…
occurs-check-3.rs
…
occurs-check-3.stderr
…
occurs-check.rs
…
occurs-check.stderr
…
once-cant-call-twice-on-heap.rs
…
once-cant-call-twice-on-heap.stderr
Better account for FnOnce in move errors
2024-04-11 16:41:42 +00:00
oom_unwind.rs
…
op-assign-builtins-by-ref.rs
…
opeq.rs
…
opt-in-copy.rs
…
opt-in-copy.stderr
…
optimization-remark.rs
…
out-pointer-aliasing.rs
…
output-slot-variants.rs
…
over-constrained-vregs.rs
…
panic_implementation-closures.rs
…
panic-while-printing.rs
…
paren-span.rs
…
paren-span.stderr
…
partialeq_help.rs
…
partialeq_help.stderr
…
path-lookahead.fixed
…
path-lookahead.rs
…
path-lookahead.stderr
…
path.rs
…
paths-containing-nul.rs
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
phantom-auto-trait.rs
…
phantom-auto-trait.stderr
…
point-to-type-err-cause-on-impl-trait-return-2.rs
…
point-to-type-err-cause-on-impl-trait-return-2.stderr
…
pptypedef.rs
…
pptypedef.stderr
…
primitive-binop-lhs-mut.rs
…
print-stdout-eprint-stderr.rs
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
project-cache-issue-31849.rs
…
ptr-coercion-rpass.rs
…
ptr-coercion.rs
…
ptr-coercion.stderr
…
query-visibility.rs
…
raw-str.rs
…
README.md
…
realloc-16687.rs
…
reassign-ref-mut.rs
…
reassign-ref-mut.stderr
…
reexport-test-harness-main.rs
…
removing-extern-crate.fixed
…
removing-extern-crate.rs
…
removing-extern-crate.stderr
…
resource-assign-is-not-copy.rs
…
resource-destruct.rs
…
rustc-error.rs
…
rustc-error.stderr
…
seq-args.rs
…
seq-args.stderr
Revert suggestion verbosity change
2024-07-22 22:51:53 +00:00
shadow-bool.rs
…
shadowed-use-visibility.rs
…
short-error-format.rs
…
short-error-format.stderr
…
sized-borrowed-pointer.rs
…
sized-cycle-note.rs
…
sized-cycle-note.stderr
…
sized-owned-pointer.rs
…
sse2.rs
sudo CI=green && Review changes <3
2024-06-25 18:06:22 +02:00
stable-addr-of.rs
…
std-uncopyable-atomics.rs
…
std-uncopyable-atomics.stderr
…
stdio-is-blocking.rs
Update test directives for wasm32-wasip1
2024-03-11 09:36:35 -07:00
string-box-error.rs
…
struct-ctor-mangling.rs
…
super-at-top-level.rs
…
super-at-top-level.stderr
…
super.rs
…
svh-add-nothing.rs
…
swap-1.rs
…
swap-overlapping.rs
…
switched-expectations.rs
…
switched-expectations.stderr
…
syntax-extension-minor.rs
…
tag-type-args.rs
…
tag-type-args.stderr
…
tag-variant-cast-non-nullary.fixed
…
tag-variant-cast-non-nullary.rs
…
tag-variant-cast-non-nullary.stderr
…
tail-call-arg-leak.rs
…
tail-cps.rs
…
tail-typeck.rs
…
tail-typeck.stderr
…
trailing-comma.rs
…
trait-method-number-parameters.rs
…
trait-method-number-parameters.stderr
…
transmute-equal-assoc-types.rs
…
transmute-non-immediate-to-immediate.rs
…
trivial_casts-rpass.rs
…
trivial_casts-rpass.stderr
…
try-from-int-error-partial-eq.rs
…
try-operator-hygiene.rs
…
try-operator.rs
…
tydesc-name.rs
…
type_length_limit.polonius.stderr
…
type_length_limit.rs
Gate the type length limit check behind a nightly flag
2024-07-12 21:16:09 -04:00
type_length_limit.stderr
Re-implement a type-size based limit
2024-07-02 15:48:48 -04:00
type-id-higher-rank-2.rs
…
type-namespace.rs
…
type-param-constraints.rs
…
type-param.rs
…
type-ptr.rs
…
type-use-i1-versus-i8.rs
…
typeid-intrinsic.rs
…
typestate-multi-decl.rs
…
unconstrained-none.rs
…
unconstrained-none.stderr
…
unconstrained-ref.rs
…
unconstrained-ref.stderr
…
underscore-ident-matcher.rs
…
underscore-ident-matcher.stderr
…
underscore-lifetimes.rs
…
underscore-method-after-integer.rs
…
unevaluated_fixed_size_array_len.rs
…
unevaluated_fixed_size_array_len.stderr
…
uninit-empty-types.rs
…
unit.rs
…
unknown-language-item.rs
consistency rename: language item -> lang item
2024-04-17 13:00:43 +02:00
unknown-language-item.stderr
consistency rename: language item -> lang item
2024-04-17 13:00:43 +02:00
unknown-llvm-arg.rs
Always use a colon in //@ normalize-*: headers
2024-07-11 12:23:44 +10:00
unknown-llvm-arg.stderr
…
unnamed_argument_mode.rs
…
unreachable-code-1.rs
…
unreachable-code.rs
…
unsigned-literal-negation.rs
…
unsigned-literal-negation.stderr
Tweak -1 as usize suggestion
2024-07-05 00:52:01 +00:00
unused-move-capture.rs
…
unused-move.rs
…
unwind-no-uwtable.rs
…
use-import-export.rs
…
use-keyword-2.rs
…
use-module-level-int-consts.rs
…
use-nested-groups.rs
…
used.rs
…
used.stderr
Show used attribute's kind for user when find it isn't applied to a static variable.
2024-06-29 19:39:09 +08:00
using-target-feature-unstable.rs
…
usize-generic-argument-parent.rs
…
usize-generic-argument-parent.stderr
…
utf8_idents.rs
…
utf8-bom.rs
…
wait-forked-but-failed-child.rs
Handle a few more simple tests
2024-05-20 11:13:10 -04:00
walk-struct-literal-with.rs
…
walk-struct-literal-with.stderr
…
weak-new-uninhabited-issue-48493.rs
…
weird-exit-code.rs
…
weird-exprs.rs
Error on using yield without also using #[coroutine] on the closure
2024-04-24 08:05:29 +00:00
write-fmt-errors.rs
io::Write::write_fmt: panic if the formatter fails when the stream does not fail
2024-05-11 15:13:18 +02:00
writing-to-immutable-vec.rs
…
writing-to-immutable-vec.stderr
…
wrong-hashset-issue-42918.rs
…

README.md

UI Tests

This folder contains rustc's UI tests.

Test Directives (Headers)

Typically, a UI test will have some test directives / headers which are special comments that tell compiletest how to build and intepret a test.

As part of an on-going effort to rewrite compiletest (see https://github.com/rust-lang/compiler-team/issues/536), a major change proposal to change legacy compiletest-style headers // <directive> to ui_test-style headers //@ <directive> was accepted (see https://github.com/rust-lang/compiler-team/issues/512.

An example directive is ignore-test. In legacy compiletest style, the header would be written as

// ignore-test

but in ui_test style, the header would be written as

//@ ignore-test

compiletest is changed to accept only //@ directives for UI tests (currently), and will reject and report an error if it encounters any comments // <content> that may be parsed as an legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.

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