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bors dfd43f0fdd Auto merge of #63870 - estebank:async-fn-call, r=oli-obk 
Suggest call fn ctor passed as arg to fn with type param bounds

_Reviewer note: the relevant changes are in the second commit, the first is simple and mechanical, but verbose._

When forgetting to call a fn in an argument position to an fn that has a generic bound:

```rust
async fn foo() {}

fn bar(f: impl Future<Output=()>) {}

fn main() {
    bar(foo); // <- should be `bar(foo());`
}
```

suggest calling it:

```
error[E0277]: the trait bound `fn() -> impl std::future::Future {foo}: std::future::Future` is not satisfied
  --> $DIR/async-fn-ctor-passed-as-arg-where-it-should-have-been-called.rs:9:5
   |
LL | fn bar(f: impl Future<Output=()>) {}
   | --------------------------------- required by `bar`
...
LL |     bar(foo);
   |     ^^^ the trait `std::future::Future` is not implemented for `fn() -> impl std::future::Future {foo}`
   |
   = help: it looks like you forgot to use parentheses to call the function: `foo()`
```

Fix #63100. Follow up to #63833 and #63337.
2019-09-01 18:04:49 +00:00
..
bootstrap Rollup merge of #63979 - alexcrichton:remove-wasm-syscall, r=dtolnay 2019-08-29 17:14:03 +02:00
build_helper rustbuild: allow disabling deny(warnings) for bootstrap 2019-08-27 17:26:54 +02:00
ci Auto merge of #63521 - newpavlov:redox_builder, r=pietroalbini 2019-08-23 08:58:24 +00:00
doc Update single-use-lifetimes 2019-08-22 22:39:21 +00:00
etc std: Remove the wasm_syscall feature 2019-08-28 08:34:31 -07:00
grammar
liballoc Rollup merge of #63684 - GrayJack:const_list_new, r=Centril 2019-08-30 23:08:01 +02:00
libarena
libcore Fix word repetition in str documentation 2019-08-31 17:38:23 +01:00
libfmt_macros Rollup merge of #63121 - estebank:formatting-pos, r=alexcrichton 2019-08-03 00:09:06 +02:00
libgraphviz
libpanic_abort redox: convert to target_family unix 2019-08-06 16:18:23 -06:00
libpanic_unwind libpanic_unwind: Unconfigure tests during normal build 2019-08-02 01:59:01 +03:00
libproc_macro proc_macro: Turn quote into a regular built-in macro 2019-08-27 00:37:13 +03:00
libprofiler_builtins
librustc review comment 2019-09-01 02:22:03 -07:00
librustc_apfloat rustc_apfloat: make the crate #![no_std] explicitly. 2019-08-28 11:24:04 +03:00
librustc_asan
librustc_ast_borrowck Cleanup: Consistently use Param instead of Arg #62426 2019-08-27 14:07:41 +02:00
librustc_codegen_llvm Rollup merge of #63956 - alexcrichton:fix-lto-all-cached, r=michaelwoerister 2019-08-29 17:14:01 +02:00
librustc_codegen_ssa Rollup merge of #63965 - loganwendholt:linker-script-fix, r=michaelwoerister 2019-08-29 05:32:54 +02:00
librustc_codegen_utils Rollup merge of #63559 - eddyb:v0-mangling-off-by-1, r=estebank 2019-08-17 11:13:45 +02:00
librustc_data_structures Rollup merge of #62744 - llogiq:tiny-list-refactor, r=eddyb 2019-08-25 02:44:58 +02:00
librustc_driver Auto merge of #63827 - andjo403:out-of-process-rustc-in-rustdoc, r=Mark-Simulacrum 2019-08-30 10:25:26 +00:00
librustc_errors Use saturating_sub 2019-08-31 13:42:53 -07:00
librustc_fs_util
librustc_incremental Fix incremental tests 2019-08-23 21:36:57 -04:00
librustc_interface Allow running rustdoc on proc-macro crates without specifying '--crate-type proc-macro' 2019-08-28 18:00:36 -04:00
librustc_lexer remove composite tokens support from the lexer 2019-08-19 21:59:09 +03:00
librustc_lint Add a "diagnostic item" scheme 2019-08-30 01:00:55 +02:00
librustc_llvm Rollup merge of #63621 - jgalenson:dndebug, r=alexcrichton 2019-08-17 11:13:47 +02:00
librustc_lsan
librustc_macros Handle cfg(bootstrap) throughout 2019-08-14 05:39:53 -04:00
librustc_metadata Add a "diagnostic item" scheme 2019-08-30 01:00:55 +02:00
librustc_mir Kill borrows from assignments after generating new borrows 2019-08-31 15:35:20 +01:00
librustc_msan
librustc_passes Cleanup: Consistently use Param instead of Arg #62426 2019-08-27 14:07:41 +02:00
librustc_plugin Restore the rustc_plugin crate in the sysroot 2019-08-20 13:30:50 +02:00
librustc_privacy review comments 2019-08-21 16:11:01 -07:00
librustc_resolve Rollup merge of #63867 - petrochenkov:dhelpers, r=matthewjasper 2019-08-29 13:17:52 +02:00
librustc_save_analysis Cleanup: Consistently use Param instead of Arg #62426 2019-08-27 14:07:41 +02:00
librustc_target Rollup merge of #63604 - Wind-River:master, r=alexcrichton 2019-08-16 18:22:28 +02:00
librustc_traits Fiddle param env through to try_eval_bits in most places 2019-08-05 17:48:05 +02:00
librustc_tsan
librustc_typeck Auto merge of #63982 - sam09:fix-63976, r=estebank 2019-08-30 17:54:55 +00:00
librustdoc Rollup merge of #64032 - andjo403:codegen-units, r=Mark-Simulacrum 2019-09-01 11:39:28 +02:00
libserialize Use associated_type_bounds where applicable - closes #61738 2019-08-08 22:39:15 +02:00
libstd Rollup merge of #64039 - pickfire:patch-1, r=jonas-schievink 2019-09-01 11:39:29 +02:00
libsyntax Auto merge of #63402 - estebank:strip-margin, r=oli-obk 2019-08-30 06:49:15 +00:00
libsyntax_ext Auto merge of #63127 - kper:pr, r=nikomatsakis 2019-08-28 03:42:00 +00:00
libsyntax_pos Add a "diagnostic item" scheme 2019-08-30 01:00:55 +02:00
libterm bootstrap: Merge the libtest build step with libstd 2019-08-23 16:46:11 -07:00
libtest Rollup merge of #62600 - emmericp:libtest-add-show-output, r=gnzlbg 2019-08-27 08:17:48 +02:00
libunwind Rollup merge of #63595 - semarie:openbsd-sparc64, r=alexcrichton 2019-08-16 18:22:26 +02:00
llvm-emscripten@7f23313edf
llvm-project@48818e9f5d Update LLVM submodule 2019-08-09 19:17:18 +02:00
rtstartup
rustc
rustllvm
stdarch@4791ba85e7
test Auto merge of #63870 - estebank:async-fn-call, r=oli-obk 2019-09-01 18:04:49 +00:00
tools Auto merge of #63975 - topecongiro:rustfmt-1.4.6, r=nikomatsakis 2019-08-31 01:35:10 +00:00
README.md doc: the content has since been moved to the guide 2019-08-06 03:03:45 +02:00
stage0.txt Bump to 1.39 2019-08-13 07:16:04 -04:00

README.md

This directory contains the source code of the rust project, including:

  • rustc and its tests
  • libstd
  • Various submodules for tools, like rustdoc, rls, etc.

For more information on how various parts of the compiler work, see the rustc guide.

There is also useful content in this README: https://github.com/rust-lang/rust/tree/master/src/librustc/infer/lexical_region_resolve.