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2019-07-29On `format!()` arg count mismatch provide extra infoEsteban Küber-15/+92
When positional width and precision formatting flags are present in a formatting string that has an argument count mismatch, provide extra information pointing at them making it easiser to understand where the problem may lay: ``` error: 4 positional arguments in format string, but there are 3 arguments --> $DIR/ifmt-bad-arg.rs:78:15 | LL | println!("{} {:.*} {}", 1, 3.2, 4); | ^^ ^^--^ ^^ --- this parameter corresponds to the precision flag | | | this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected | = note: positional arguments are zero-based = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html error: 4 positional arguments in format string, but there are 3 arguments --> $DIR/ifmt-bad-arg.rs:81:15 | LL | println!("{} {:07$.*} {}", 1, 3.2, 4); | ^^ ^^-----^ ^^ --- this parameter corresponds to the precision flag | | | | | this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected | this width flag expects an `usize` argument at position 7, but there are 3 arguments | = note: positional arguments are zero-based = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html error: 3 positional arguments in format string, but there are 3 arguments --> $DIR/ifmt-bad-arg.rs:84:15 | LL | println!("{} {:07$} {}", 1, 3.2, 4); | ^^ ^^---^ ^^ | | | this width flag expects an `usize` argument at position 7, but there are 3 arguments | = note: positional arguments are zero-based = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html ```
2019-07-28Deny `unused_lifetimes` through rustbuildVadim Petrochenkov-2/+0
2019-07-28Remove lint annotations in specific crates that are already enforced by ↵Vadim Petrochenkov-3/+0
rustbuild Remove some random unnecessary lint `allow`s
2019-07-27syntax_ext: `proc_macro_decls` -> `proc_macro_harness`Vadim Petrochenkov-14/+13
Few other minor renamings for consistency. Remove one unused dependency from `rustc_passes`. Fix libsyntax tests. Fix rebase.
2019-07-27Move standard library injection into libsyntax_extVadim Petrochenkov-0/+96
2019-07-27Move test harness generation into libsyntax_extVadim Petrochenkov-50/+432
2019-07-27Move proc macro server into libsyntaxVadim Petrochenkov-962/+2
2019-07-27Break dependencies between `syntax_ext` and some other cratesVadim Petrochenkov-11/+167
Move `source_uitil` macros into `syntax_ext` Cleanup dependencies of `rustc_driver`
2019-07-26Introduce built-in macros through libcoreVadim Petrochenkov-221/+129
2019-07-24Fix rebaseVadim Petrochenkov-1/+1
2019-07-24syntax_ext: Improve and simplify code generated by `#[global_allocator]`Vadim Petrochenkov-57/+28
Instead of ``` mod allocator_abi { /* methods */ } ``` we now generate ``` const _: () = { /* methods */ } ``` and use `std_path` for paths referring to standard library entities. This way we no longer need to generate `use` and `extern crate` imports, and `#[global_allocator]` starts working inside unnamed blocks.
2019-07-24syntax_ext: Reuse built-in attribute template checking for macro attributesVadim Petrochenkov-20/+17
2019-07-24syntax_ext: Turn `#[global_allocator]` into a regular attribute macroVadim Petrochenkov-146/+85
2019-07-24Merge `rustc_allocator` into `libsyntax_ext`Vadim Petrochenkov-0/+297
2019-07-23Rollup merge of #62869 - matklad:feature-gate, r=Mark-SimulacrumMark Rousskov-0/+1
add rustc_private as a proper language feature gate At the moment, `rustc_private` as a (library) feature exists by accident: `char::is_xid_start`, `char::is_xid_continue` methods in libcore define it. cc https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/How.20to.20declare.20new.20langauge.20feature.3F I don't know if this is at all reasonable, but at least tests seem to pass locally. That probably means that we can remove/rename to something more resonable the feature in libcore in the next release?
2019-07-23Rollup merge of #62791 - estebank:type-ascription, r=petrochenkovMark Rousskov-1/+4
Handle more cases of typos misinterpreted as type ascription Fix #60933, #54516. CC #47666, #34255, #48016.
2019-07-22add rustc_private as a proper language feature gateAleksey Kladov-0/+1
At the moment, `rustc_private` as a (library) feature exists by accident: `char::is_xid_start`, `char::is_xid_continue` methods in libcore define it.
2019-07-20Auto merge of #62710 - estebank:bad-named-args, r=petrochenkovbors-15/+24
Specific error for positional args after named args in `format!()` When writing positional arguments after named arguments in the `format!()` and `println!()` macros, provide a targeted diagnostic. Follow up to https://github.com/rust-lang/rust/pull/57522/files#r247278885
2019-07-19Handle more cases of typos misinterpreted as type ascriptionEsteban Küber-1/+4
2019-07-19Adjust other names after the `Mark` renamingVadim Petrochenkov-14/+14
2019-07-19libsyntax: Remove `Mark` into `ExpnId`Vadim Petrochenkov-2/+2
2019-07-15Specific error for positional args after named args in `format!()`Esteban Küber-15/+24
When writing positional arguments after named arguments in the `format!()` and `println!()` macros, provide a targeted diagnostic.
2019-07-15normalize use of backticks in compiler messages for libsyntax_extSamy Kacimi-4/+4
https://github.com/rust-lang/rust/issues/60532
2019-07-13Make `register_[long_]diagnostics` hygienicMatthew Jasper-1/+1
2019-07-11hygiene: Introduce a helper method for creating new expansionsVadim Petrochenkov-4/+2
Creating a fresh expansion and immediately generating a span from it is the most common scenario. Also avoid allocating `allow_internal_unstable` lists for derive markers repeatedly. And rename `ExpnInfo::with_unstable` to `ExpnInfo::allow_unstable`, seems to be a better fitting name.
2019-07-11hygiene: Reuse `MacroKind` in `ExpnKind`Vadim Petrochenkov-2/+2
Orthogonality and reuse are good.
2019-07-11Remove unnecessary expansions created by `#[test_case/test/bench]`Vadim Petrochenkov-31/+21
The expansions were created to allow unstable things inside `#[test_case/test/bench]`, but that's not a proper way to do that. Put the required `allow_internal_unstable`s into the macros' properties instead.
2019-07-11Rename some things in `syntax_pos/hygiene`Vadim Petrochenkov-6/+6
More consistent with other naming: ExpnFormat -> ExpnKind ExpnKind::name -> ExpnKind::descr DesugaringKind::name -> DesugaringKind::descr Shorter, no tautology: CompilerDesugaring -> Desugaring CompilerDesugaringKind -> DesugaringKind
2019-07-07Rollup merge of #62042 - petrochenkov:macstab, r=matthewjasperMazdak Farrokhzad-147/+122
Support stability and deprecation checking for all macros RELNOTES: Deprecation attributes on macros now have effect. Fixes https://github.com/rust-lang/rust/issues/34079 Fixes https://github.com/rust-lang/rust/issues/49912 Unblocks https://github.com/rust-lang/rust/pull/62086 Unblocks https://github.com/rust-lang/rust/pull/61000
2019-07-07syntax: Pre-intern names of all built-in macrosVadim Petrochenkov-22/+22
They always end up interned anyway
2019-07-07syntax: Migrate built-in macros to the regular stability checkingVadim Petrochenkov-127/+102
2019-07-07rustc: Remove `dylib` crate type from most rustc cratesAlex Crichton-1/+1
Now that procedural macros no longer link transitively to libsyntax, this shouldn't be needed any more! This commit is an experiment in removing all dynamic libraries from rustc except for librustc_driver itself. Let's see how far we can get with that!
2019-07-05Rollup merge of #61545 - flip1995:internal_lints, r=oli-obkMazdak Farrokhzad-1/+0
Implement another internal lints cc #49509 This adds ~~two~~ one internal lint~~s~~: 1. LINT_PASS_IMPL_WITHOUT_MACRO: Make sure, that the `{declare,impl}_lint_pass` macro is used to implement lint passes. cc #59669 2. ~~USAGE_OF_TYCTXT_AND_SPAN_ARGS: item 2 on the list in #49509~~ ~~With 2. I wasn't sure, if this lint should be applied everywhere. That means a careful review of 0955835 would be great. Also 73fb9b4 allows this lint on some functions. Should I also apply this lint there?~~ TODO (not directly relevant for review): - [ ] https://github.com/rust-lang/rust/pull/59316#discussion_r280186517 (not sure yet, if this works or how to query for `rustc_private`, since it's not in [`Features`](https://doc.rust-lang.org/nightly/nightly-rustc/syntax/feature_gate/struct.Features.html) :thinking: cc @eddyb) - [x] https://github.com/rust-lang/rust/pull/61735#discussion_r292389870 - [x] Check explicitly for the `{declare,impl}_lint_pass!` macros r? @oli-obk
2019-07-03Remove needless lifetimesJeremy Stucki-1/+1
2019-07-03Remove needless lifetimesJeremy Stucki-5/+5
2019-06-24Enable internal lints in bootstrapflip1995-1/+0
2019-06-23Remove built-in derive macros `Send` and `Sync`Vadim Petrochenkov-10/+0
2019-06-23Fix meta-variable binding errors in macrosJulien Cretin-2/+2
The errors are either: - The meta-variable used in the right-hand side is not bound (or defined) in the left-hand side. - The meta-variable used in the right-hand side does not repeat with the same kleene operator as its binder in the left-hand side. Either it does not repeat enough, or it uses a different operator somewhere. This change should have no semantic impact.
2019-06-19Auto merge of #61172 - matthewjasper:cleanup-implied-bounds-lint, r=varkorbors-1/+0
Improve the explicit_outlives_requirements lint * Don't use Strings to compare parameters * Extend the lint to lifetime bounds * Extend the lint to enums and unions * Use the correct span for where clauses in tuple structs * Try to early-out where possible * Remove unnecessary bounds in rustc crates
2019-06-19Rollup merge of #61898 - petrochenkov:sekind, r=eddybMazdak Farrokhzad-90/+66
syntax: Factor out common fields from `SyntaxExtension` variants And some other related cleanups. Continuation of https://github.com/rust-lang/rust/pull/61606. This will also help to unblock https://github.com/rust-lang/rust/pull/61877.
2019-06-18Remove the HirId/NodeId from where clausesMatthew Jasper-1/+0
Also give them a span in the HIR
2019-06-18Run `rustfmt --file-lines ...` for changes from previous commits.Eduard-Mihai Burtescu-5/+6
2019-06-18rustc: remove 'x: 'y bounds (except from comments/strings).Eduard-Mihai Burtescu-2/+2
2019-06-18syntax: Introduce `default`/`with_unstable` constructors for `ExpnInfo`Vadim Petrochenkov-31/+14
2019-06-18allow_internal_unstable: Avoid some more allocationsVadim Petrochenkov-18/+6
2019-06-18syntax: Factor out common fields from `SyntaxExtension` variantsVadim Petrochenkov-48/+53
2019-06-16Separate libsyntax_ext modulechansuke-215/+212
2019-06-15Remove unnecessary `.clone()`Shotaro Yamada-2/+2
2019-06-12Auto merge of #60669 - c410-f3r:attrs-fn, r=petrochenkovbors-1/+1
Allow attributes in formal function parameters Implements https://github.com/rust-lang/rust/issues/60406. This is my first contribution to the compiler and since this is a large and complex project, I am not fully aware of the consequences of the changes I have made. **TODO** - [x] Forbid some built-in attributes. - [x] Expand cfg/cfg_attr
2019-06-12Rollup merge of #61654 - Electron-libre:use_slice_patterns_in_rustc, ↵Mazdak Farrokhzad-13/+13
r=oli-obk,Centril use pattern matching for slices destructuring refs #61542 Use slices pattern where it seems to make sense .
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