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2672 Commits

Author SHA1 Message Date
Michael Wright
e097fca4df Update iterator_step_by_zero 
Move `iterator_step_by_zero` into `methods` since it applies to all
iterators and not just ranges. Simplify the code while doing so.
 2019-12-18 18:59:43 +02:00
Mark Rousskov
69f99e74ac Update tests for revert of never type stabilization 2019-12-14 08:40:43 -05:00
bors
d82debbd01 Auto merge of #4883 - krishna-veerareddy:issue-4818-cast-sign-loss-false-positive, r=flip1995 
Fix false positive with cast_sign_loss lint

`cast_sign_loss` lint incorrectly suggests that the result of `checked_abs`, `rem_euclid` and `checked_rem_euclid` cannot be casted to an unsigned integer without loss.

Fixes #4818 #4764 #4743

changelog: Fix false positives in `cast_sign_loss` lint
 2019-12-12 00:34:59 +00:00
Krishna Veera Reddy
23c03e4994 Move transmute_float_to_int test cases into separate file 
`transmute.stderr` file line count exceeded due to the new test
cases so moving the new test cases into a separate file.
 2019-12-07 17:19:56 -08:00
Krishna Veera Reddy
c77fc06d52 Add lint to detect transmutes from float to integer 
Add lint that detects transmutation from a float to an integer
and suggests usage of `{f32, f64}.to_bits()` instead.
 2019-12-07 16:33:49 -08:00
RobbieClarken
f5d0a452ba Add lint for pub fns returning a Result without documenting errors 
The Rust Book recommends that functions that return a `Result` type have
a doc comment with an `# Errors` section describing the kind of errors
that can be returned
(https://doc.rust-lang.org/book/ch14-02-publishing-to-crates-io.html#commonly-used-sections).
This change adds a lint to enforce this. The lint is allow by default;
it can be enabled with `#![warn(clippy::missing_errors_doc)]`.

Closes #4854.
 2019-12-06 17:19:05 +10:30
Krishna Veera Reddy
c0fb74baf5 Add widening tests for cast_sign_loss lint 2019-12-05 17:18:27 -08:00
Krishna Veera Reddy
7002a9ee83 Fix false positive with cast_sign_loss lint 
`cast_sign_loss` lint incorrectly suggests that the result of
`checked_abs`, `rem_euclid` and `checked_rem_euclid` cannot
be casted to an unsigned integer without loss.
 2019-12-05 15:47:15 -08:00
daxpedda
946961d19e
Change to only detect in external macros. 2019-12-05 11:06:13 +01:00
daxpedda
d11b958faf
Fix false positive in string_add. 2019-12-04 21:51:02 +01:00
Matthias Krüger
98e433d70d
Rustup to rust-lang/rust#66878 2019-12-04 01:34:01 +01:00
bors
c66cca44c8 Auto merge of #4877 - flip1995:manual_swap_4853, r=llogiq 
Fix FP in manual_swap lint with slice-like types

Fixes #4853

changelog: Fix FP in [`manual_swap`] lint with slice-like types and make it auto applicable
 2019-12-03 18:36:19 +00:00
flip1995
7162393103
Update op_ref.stderr 2019-12-03 18:37:07 +01:00
flip1995
1e3b24de43
Make manual_swap autofixable 2019-12-03 13:42:05 +01:00
flip1995
d3232b0fce
Add regression test for manual_swap 2019-12-03 13:25:41 +01:00
flip1995
511deceb36
Normalize custom ICE test 
Fixes #4872
 2019-12-02 20:42:39 +01:00
bors
45196cee02 Auto merge of #4690 - lzutao:fix-test-on-non-amd64, r=flip1995 
generate stderr file on 32bit pointer system

changelog: none
 2019-12-01 18:39:21 +00:00
Lzu Tao
5488672d1f account for external macro in MISSING_INLINE_IN_PUBLIC_ITEMS lint 2019-12-01 19:38:01 +07:00
Lzu Tao
7156aa7f95 build(tests/fmt): use shared target dir 2019-12-01 19:07:02 +07:00
Lzu Tao
142b289a51 chore: fix and split some ui tests on 32bit system 2019-12-01 19:07:02 +07:00
Lzu Tao
83b90d8a86 remove needless my_lint ui test 2019-12-01 09:56:47 +07:00
Andre Bogus
ef7587d957 Less needless_doctest_main false positives 
This checks if a) the `fn main() {}` function is empty or if the doctest contains a `static`. In both cases don't lint.
 2019-11-29 21:47:26 +01:00
Philipp Hansch
21dee8f529
Use rustc_env instead of exec_env for test 2019-11-29 20:47:50 +01:00
Philipp Hansch
ad6d8a4700
Make triggering this lint less likely 📎 2019-11-29 20:47:50 +01:00
Philipp Hansch
5029dfe403
Use exec_env to set backtrace level and normalize output 2019-11-29 20:47:50 +01:00
Philipp Hansch
fc57c84abe
Use Clippy version in ICE message 2019-11-29 20:47:50 +01:00
Philipp Hansch
676f14baa0
Add custom ICE message that points to Clippy repo 
This utilizes https://github.com/rust-lang/rust/pull/60584 by setting
our own `panic_hook` and pointing to our own issue tracker instead of
the rustc issue tracker.

This also adds a new internal lint to test the ICE message.

**Potential downsides**

* This essentially copies rustc's `report_ice` function as
  `report_clippy_ice`. I think that's how it's meant to be implemented, but
  maybe @jonas-schievink could have a look as well =)

  The downside of more-or-less copying this function is that we have to
  maintain it as well now.
  The original function can be found [here][original].
* `driver` now depends directly on `rustc` and `rustc_errors`

Closes #2734

[original]: 59367b074f/src/librustc_driver/lib.rs (L1185)
 2019-11-29 20:47:47 +01:00
Philipp Krones
82066d2f0e
Use println! on success instead of eprintln! 
Co-Authored-By: Phil Hansch <dev@phansch.net>
 2019-11-28 17:48:29 +01:00
flip1995
3e1139a7dc
Rust implementation of integration test 2019-11-28 16:55:21 +01:00
bors
dbdd75ab52 Auto merge of #4855 - phansch:rollup-x7yail7, r=phansch 
Rollup of 3 pull requests

Successful merges:

 - #4832 (Add some positive examples to lint docs)
 - #4842 ([comparison_chain] #4827 Check `core::cmp::Ord` is implemented)
 - #4847 (fixing a typo)

Failed merges:

changelog: none

r? @ghost
 2019-11-28 09:30:16 +00:00
Phil Hansch
1165176840
Rollup merge of #4842 - timbodeit:comparison-chain-false-positive-4827, r=flip1995 
[comparison_chain] #4827 Check `core::cmp::Ord` is implemented

Only emit `comparison_chain` lint, if `cmp` is actually available on the type being compared. Don't emit lint in cases where only `PartialOrd` is implemented.

I haven't yet fully understood [Adjustments](https://doc.rust-lang.org/nightly/nightly-rustc/rustc/ty/adjustment/struct.Adjustment.html). I would appreciate, if someone could double check whether my usage of [expr_ty](https://doc.rust-lang.org/nightly/nightly-rustc/rustc/ty/struct.TypeckTables.html#method.expr_ty) in `clippy_lints/src/comparison_chain.rs:91` is correct or if there are cases where using [expr_ty_adjusted](https://doc.rust-lang.org/nightly/nightly-rustc/rustc/ty/struct.TypeckTables.html#method.expr_ty_adjusted) would lead to a different result when used with `utils::implements_trait`.

---

fixes #4827
changelog: [comparison_chain] Check `core::cmp::Ord` is implemented
 2019-11-28 10:19:05 +01:00
bors
f3288eb48d Auto merge of #4851 - daxpedda:float-arithmetic, r=flip1995 
Remove negative float literal checks.

Fixes #4850.

changelog: Remove negative float literal checks.
 2019-11-28 09:11:45 +00:00
bors
d377486561 Auto merge of #4821 - Areredify:as_conversions, r=flip1995 
Add `as_conversions` lint

changelog: closes #4771, adding a new pedantic allow-by-default lint that lints against any usage of `as`.
 2019-11-28 08:53:36 +00:00
bors
d6accfcc82 Auto merge of #4808 - euclio:string-lit-as-bytes, r=phansch 
trigger string_lit_as_bytes when literal has escapes

---

changelog: fix string_lit_as_bytes false negative

Depends on rust-lang/rust#66349.

Fixes #4796.
 2019-11-28 07:26:04 +00:00
Lzu Tao
d0e0ffa99f make use of Result::map_or 2019-11-28 10:52:20 +07:00
Manish Goregaokar
73646487af Add blank stderr file for cant_be_const test 2019-11-27 15:09:48 -08:00
Manish Goregaokar
341e266508 Add BorrowKind::Ref 2019-11-27 14:39:28 -08:00
Andy Russell
d33ad45d7d
trigger string_lit_as_bytes when literal has escapes 2019-11-26 17:07:17 -05:00
daxpedda
e46bedca3c
Remove negative float literal checks. 2019-11-25 19:23:28 +01:00
Mikhail Babenko
9ec8888b91 implemented as_conversions lint 
actuall add files

add better example and change pedantic to restriction
 2019-11-25 18:12:52 +03:00
flip1995
d2d62de841
Rustup to rust-lang/rust#64856 2019-11-25 13:56:24 +01:00
flip1995
d43c424145
Rustup to rust-lang/rust#66671 2019-11-25 13:18:38 +01:00
Tim Bodeit
fff9a8ea9c [comparison_chain] #4827 Check core::cmp::Ord is implemented 
Only emit lint, if `cmp` is actually available on the type being
compared. Don't emit lint in cases where only `PartialOrd` is
implemented.
 2019-11-24 10:00:06 +01:00
bors
cc35165f52 Auto merge of #4840 - flip1995:rollup-jqk3a3i, r=flip1995 
Rollup of 5 pull requests

Successful merges:

 - #4730 (Fix check_infinite_loop (while_immutable_condition) by checking for break or return inside loop body)
 - #4766 (Fix false positive in derive_hash_xor_eq)
 - #4811 (Literal Representation Restructure)
 - #4820 (doc: fix the comment above the lint function)
 - #4830 (use more efficient code to generate repeated string)

Failed merges:

r? @ghost

changelog: none
 2019-11-23 17:40:57 +00:00
Philipp Krones
623d8c4640
Rollup merge of #4811 - mikerite:lit_repr_20191113, r=flip1995 
Literal Representation Restructure

This pull request restructures the literal_representation module to be easier to understand and maintain. I split the changes into a lot of commits to make reviewing easier.

changelog: none
 2019-11-23 18:16:00 +01:00
Philipp Krones
93d84d7dda
Rollup merge of #4766 - phansch:fix_fp_in_derive_hash_xor_eq, r=flip1995 
Fix false positive in derive_hash_xor_eq

This fixes a false positive in derive_hash_xor_eq where the lint was
triggering on user-defined traits called `Hash`.

changelog: Fix false positive in `derive_hash_xor_eq`

Fixes #4658
 2019-11-23 18:15:59 +01:00
Philipp Krones
016857db65
Rollup merge of #4730 - yerke:fix-check_infinite_loop, r=flip1995 
Fix check_infinite_loop (while_immutable_condition) by checking for break or return inside loop body

changelog: Fix check_infinite_loop (while_immutable_condition) by checking for break or return inside loop body
fixes #4648
 2019-11-23 18:15:58 +01:00
flip1995
7db973d06f
Merge remote-tracking branch 'FlorianRohm/issue/4623' into rollup-new-lints 2019-11-23 17:56:13 +01:00
flip1995
353668ee6c
Merge remote-tracking branch 'Areredify/large_stack_arrays' into rollup-new-lints 2019-11-23 17:55:10 +01:00
flip1995
213765a1d3
Merge remote-tracking branch 'popzxc/if-same-cond-fn' into rollup-new-lints 2019-11-23 17:54:26 +01:00